;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s Cykd izwfoax ckbZ ,Dly dkm.Vj … · 2019. 10. 17. · CONTENTS izkDdFku Foreword III Hkwfedk Preface V fo"k; lwph Contents VII Lkq/kkj iphZ

Hkkjr ljdkj &GOVERNMENT OF INDIA jsy ea=ky;& MINISTRY OF RAILWAYS ¼dk;kZy;hu iz;ksx gsrq½& (For official use only)

;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s Cykd izwfoax ckbZ ,Dly dkm.Vj ij

vuqj{k.k gLriqfLrdk

MAINTENANCE HAND BOOK ON

BLOCK PROVING BY AXLE COUNTER USING UFSBI

dSeVsd@,l@izkSt@2011&12@,pch&chih,lh&;w,Q,lchvkbZ@1-0 vxLr 2012

CAMTECH/S/PROJ/2011‐12/HB‐BPAC‐UFSBI/1.0 August 2012

CONTENTS

izkDdFku Foreword III Hkwfedk Preface V fo"k; lwph Contents VII Lkq/kkj iphZ Correction Slips X 1. ;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s Cykd

izwfoax ckbZ ,Dly dkm.Vj Block proving by Axle counter using UFSBI 1

2. Rkduhdh vfHky{k.k Technical features 2 3. v½ nksgjh ykbZu gsrq Cykd iSuy dk o.kZu

c½ bdgjh ykbZu gsrq Cykd iSuy dk o.kZu a) Description of block panel for double line b) Description of block panel for single line

5 6

4. CykWd iSuy Block panel 7 5. DokM dsfcy ;k okW;l pSuy Quad cable or voice channel 8 6. CykWd iSuy dks lfEefyr djrs gq;s ,Dly

dkm.Vj iz.kkyh ds lkFk Cykd izwfoax Block proving with Axle counter system comprising of block panel

8

7. rduhdh fooj.k Technical details 15 8. fjys jSd dh ok;fjax Wiring of relay rack 19 9. vkarfjd ikWoj lIykbZ dk fof’k"Vhdj.k Internal power supply specifications 19 10. ikWoj lIykbZ ds vfHky{k.k Features of the power supply are 19 11. ekWMse dk fof’k"Vhdj.k Modem specifications 20 12. lkoZf=d Qsy lsQ CykWd baVjQsl Universal fail safe bloc interface 20 13. bySDVªkWfud dkMZ dh igpku Identifications of electronic cards 21 14. gkMZos;j <kaps dk fuekZ.k Hardware architecture 22 15. ;w-,Q-,l-ch-vkbZ- ds <kaps dk o.kZu UFSBI configuration details 22 16. ;w-,Q-,l-ch-vkbZ- dk irk UFSBI address 23 17. ;w-,Q-,l-ch-vkbZ- laLFkkiu ds funsZ’k UFSBI installation guide 24 18. laLFkkiu ds nkSjku tkap Check during installation 24 19. vuqj{k.k Maintenance 25 20. djsa o u djsa Do’s and don’ts 26 21. [kjkfc;ka Failures 27 22. lkekU; vuqj{k.k General maintenance 29 23. lapkj ekxZ ¼vks,Qlh ;k ekbØksoso jsfM;ks

ij½ Communication channel (on OFC or Microwave radio)

29

24. vkjMh,lvks @,l ih ,u@188@2004 ds vuqlkj ;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s /kqjk x.kd ds lkFk CykWd ofdZax ds fy;s dk;Z lEiknu ls iwoZ dh tkap lwph

Pre commissioning check list for block working with axle counter using UFSBI (As per RDSO /SPN/188/2004)

30

25. vuqca/k&I % dk;Z lEiknu ds le; le; la;kstu fd;s tkus ds fy;s ;k ok;fjax fd;s tkus ds fy;s lko/kkfu;ka tks dh tkuh gSA

Annexure I- Precautions to be taken care during wiring / connections are to be done at the time of commissioning

37

vuqca/k& II % rkieku lq/kkj xq.kd Annexure II – Temperature correction factor 38

vuqca/k& III % rduhdh le>kus okyk laf{kIr ys[k

Annexure III – Technical advisory note 39

vuqca/k& IV % Annexure IV-

&CykWd lsD’ku vkSj dsfcy Iyku ¼nksgjh ykbZu o bdgjh ykbZu½ &CykWd iSuy¼nksgjh ykbZu o bdgjh ykbZu½

- Block section and cable plan (DL and SL) - Block Panel (DL and SL)

42


vuqj{k.k gLriqfLrdk

MAINTENANCE HAND BOOK ON

BLOCK PROVING BY AXLE COUNTER USING UFSBI

dSeVsd@,l@izkSt@2011&12@,pch&chih,lh&;w,Q,lchvkbZ@1-0 vxLr 2012

CAMTECH/S/PROJ/2011‐12/HB‐BPAC‐UFSBI/1.0 August 2012

IkzkDdFku ;g vuqj{k.k gLriqfLrdk ;w,Q,lchvkbZ dk iz;ksx djrs gq;s /kqjk x.kd ds }kjk CYkkWd izwfoax dk laLFkkiu vkSj vuqj{k.k ds lgh rjhdksa dh tkudkjh ladsr ,oa nwjlapkj deZpkfj;ksa dks nsus ds mn~ns’; ls cukbZ xbZ gSA rduhdh vfHky{k.kksa dk foLrkj iwoZd o.kZu] dk;Z djus ds fl/nkar] bdgjh o nkSgjh ykbZu ds fy;s CykWd iSuy dk o.kZu] fjys jSd esa fHkUu fHkUu fjys] ikWoj lIykbZ ds vfHky{k.k] ;w,Q,lchvkbZ laLFkkiu ds funsZ’k o iwoZ dk;Z lEiknu tkap lwph bR;knh bl iqLrd esa fy;s x;s gSaA bl gLriqfLrdk esa izfrca/kkRed vuqj{k.k ds rjhds] midj.kksa dk vuqj{k.k] jhlsV izfØ;k] ikWoj vkWu jhlsV izfØ;k vkSj lq/kkj dk;Z fy;s x;s gSa tks nks"kksa dks 'kh?kz <aw<dj [kjkch;ksa dks nwj djus esa vuqj{k.k deZpkfj;ksa dks fuf’pr #i ls lgk;d fl/n gksxhA dSeVsd] Xokfy;j v- jk- rqis fnukad 1 vxLr 2012 dk;Zdkjh funs’kd

FOREWORD

This maintenance handbook has been prepared with the object of imparting knowledge to the S&T field staff about correct way of maintenance and installation of Block Proving by Axle Counter using UFSBI. The book contains detailed description of Technical features, Principle of Working, Description of Block Panel for double line and single line, Various relays in the relay rack, Features of Power Supply, UFSBI installation guide and Pre- commissioning check list etc. It also has procedure for Preventive Maintenance, Maintenance of Equipment, Reset operation, Power-on Reset operation and remedial actions which will definitely be helpful to the maintenance staff in quickly diagnosing the fault and rectifying the defect. CAMTECH, GWALIOR A.R.TUPE 1 AUGUST- 2012 EXECUTIVE DIRECTOR

Hkwfedk Hkkjrh; jsyksa esa CykWd midj.k dh [kjkfc;kWa xkM+h;ksa ds le; ikyu ij izHkko Mkyrh gSaA dSeVsd dk fujarj iz;kl jgk gS fd vuqj{k.k i/nfr;ksa dk mi;qDr ys[ku rFk mUu;u gksa A ;g vuqj{k.k gLriqfLrdk bl CykWd midj.k dk mfpr #i ls vuqj{k.k djus ds fy;s o nks"k jfgr dk;Z’khyrk iznku djus ds fy;sa vuqj{k.k deZpkjh;ksa ds lgk;rk ds fy;s cukbZ xbZ gSA

ge Jh ih-ds- oekZ] funs’kd @ladsr@vvekal] Jh iznhi lDlsuk] vfHkdYi vfHk;ark @vvekal o vvkekal vuqeksfnr QeZ ds cgqr vkHkkjh gSa ftUgksus bl gLriqfLrdk dks cukus esa gekjk lg;ksax fd;kA

pwafd rduhdh mUu;u ,oa f’k{k.k ,d Øfed izfØ;k gSA vr% bl gLriqfLrdk eas ;fn dqN tksMus ;k lq/kkjus dh vko’;drk eglwl dj ldrs gSaA ;fn ,slk gS rks Ñi;k vius lq>ko gesa bl besy [email protected] ij Hkstsa vFkok fy[k Hkstsa ge vkids lg;ksx ds fy;s vR;ar vkHkkjh gksxas% mPp vuqj{k.k izks/kksfxdh dsUnz] gksVy vkfnR;kt ds lkeus] egkjktiqj Xokfy;j ¼e-iz½ 474005A

dSeVsd] Xokfy;j ,l-ds-lDlsuk fnukad 1-vxLr 2012 la- funs’kd¼ladsr ,oa nwj-½

PREFACE

On Indian Railways, failures of Block Equipment affects the punctuality of trains. CAMTECH is continuously putting efforts in the field of documentation and up gradation of information on maintenance practices. This maintenance handbook has been prepared to help the maintenance staff to maintain and provide trouble free working of this block equipment. We are sincerely thankful to Shri P.K.Verma Director/Signal, RDSO, Shri Pradeep Saxena/ADE, RDSO, Shri S.B. Rai SSE/Signal, RDSO and RDSO approved Firm who helped us for preparing this handbook. Since, technological up gradation and learning is a continuous process, you may feel the need for some addition/modification in this handbook. If so, please feel free to write us. We will be highly appreciating your contribution. CAMTECH, Gwalior S.K.SAXENA 1 AUGUST-2012 DIRECTOR(S&T)

la’kks/ku ifpZ;ksa dk izdk’ku

bl y?kq iqfLrdk ds fy;s Hkfo"; esa izdkf’kr gksus okyh la’kks/ku ifpZ;ksa dks fuEukuqlkj la[;kafdr fd;k tk;sxkA

dSeVsd@,l@izkSt@2011&12@,pch&chih,lh&;w,Q,lchvkbZ@1-0 lh,l #XX fnukad-------- tgkWa “XX” lEcfU/kr la’kks/ku iphZ dh dze la[;k gS ¼01 ls izkjEHk gksdj vkxs dh vksj½ izdkf’kr la’kks/ku ifpZ;kWa dz-la- izdk’ku dh rkjh[k la’kksf/kr Ik`"B la[;k rFkk en

la[;k fVIi.kh

ISSUE OF CORRECTION SLIPS

The Correction slips to be issued in future for this handbook will be numbered as follows. CAMTECH/S/PROJ/2011-12/HB-BPAC-UFSBI/1.0/CS # XX dated…………………. Where “XX” is the serial number of the concerned correction slip(starting from 01 onwards). CORRECTION SLIPS ISSUED Sr. No. of C. Slip

Date of issue Page No. and Item No. modified

Remark

CAMTECH/PROJ/11-12/HB-BPAC-UFSBI

Block Proving by Axle Counter using UFSBI Agust2012

1


vuqj{k.k gLriqfLrdk BLOCK PROVING BY AXLE COUNTER

USING UFSBI 1. ;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s Cykd

izwfoax ckbZ ,Dly dkm.Vj Block proving by Axle counter using UFSBI

This consists of the following sub parts:

a) Block Panel b) UFSBI c) SSDAC: It functions as LVCD (last vehicle checking device) d) Associated relay logic circuit duly approved by RDSO.

Fig No: 1.Block Panel Double Line



2

1.1 Lakf{kIr iz.kkyh o.kZu Brief System Description

The Block Panel work in Absolute Block system incorporating Block Proving by Axle Counter to control the movement of trains on double line/Single line block section from one block station to another.

2. Rkduhdh vfHky{k.k Technical features

(a) The equipment is capable of driving safety signalling relays (b) The equipment is capable of working on Telecom Cable as well as Voice/Data

channel provided over Optical Fiber. (c) The coding of signal transmission takes care of types of noise generally

encountered in the transmission system and ensures safety of operation against these noises.

(d) Each equipment in the section has a unique address, which is settable through Back-panel jumpers provided at mother board of UFSBI “UFSBI Address Configuration Jumpers” given.

(e) The information exchanged between the pair of the interface equipment contains the source & destination address.

(f) Wrongly addressed information packets are promptly rejected by the system and frequent receipt of such packets is detected as link failure by the system.

(g) The bell of the Block Instrument work on voice channel i.e. block telephone. (h) Alternatively, the bell may be worked through the Mux terminal. . (i) The telephone is on a separate voice channel. (j) The system works on 24V DC + 20% - 10%. (k) A push button is provided for resetting UFSBI inside the cubicle on a reset

box. (l) The resetting system is provided with a veeder counter to count the number of

reset action.



3

STA

TIO

N -

AST

ATIO

N -

B

STA

TIO

N -

AST

ATIO

N -

B

Bloc

k Se

ctio

n

Bloc

k Se

ctio

n

Typ

ically

10-

20 k

ms

Typ

ically

10-

20 k

ms

SSD

AC

Axle

Sen

sor

44

SSDA

C -

1 U

P

SSD

ACAx

le S

enso

r

44

SSD

AC

- 2

UP

½ Q

uad

cab

le o

r 2

wire

vo

ice

chan

nel o

n O

FC

SSD

AC

Axle

Sen

sor

44

SSDA

C -

1 D

n

SSD

ACAx

le S

enso

r

44

SSD

AC

- 2

Dn

½ Q

uad

cab

le o

r 2

wire

vo

ice

chan

nel o

n O

FC

Stat

ion

inte

rlock

ing

syst

em

(M

AC

L, R

RI,

PI, S

SI)

Pus

h b

utto

n ty

peb

lock

op

erat

ing

pan

el (d

esig

ned

by

RD

SO

)

Blo

ck in

terlo

ckin

gci

rcu

it w

ith Q

typ

e re

lays

(de

sing

ed

by R

DS

O)

2/3

fail

safe

dig

ital

Mux

UFS

BI (a

s pe

r RD

SO

/SP

N/

147/

97)

Sta

tion

inte

rlock

ing

syst

em

(MAC

L, R

RI,

PI,

SSI

)

Push

but

ton

type

bloc

k o

pera

ting

pa

nel (

desi

gned

by

RD

SO

)

Bloc

k in

terlo

ckin

gci

rcui

t with

Q t

ype

rela

ys (d

esin

ged

by

RD

SO

)

2/3

fai

l saf

e di

gita

lM

ux U

FSB

I (as

p

er R

DS

O/S

PN/

147

/97

)

Stat

us

of V

ital r

elay

for

UP

& D

n L

ine

(thro

ugh

sepa

rate

pot

ent

ial f

ree

cont

acts

Sta

tus

of V

ital r

ela

y fo

rU

P &

Dn

Line

(thr

ough

sepa

rate

po

ten

tial f

ree

cont

acts

1 Q

uad

cab

le o

r 4

wire

vo

ice c

hann

el o

n O

FC

½ Q

uad

cab

le o

r 2

wire

vo

ice

chan

nel o

n O

FC

UF

SBI -

1

Blo

ck P

anel

-1

Rel

ayIn

terlo

ckin

g ck

t -1

Blo

ck T

ele

phon

e

Blo

ck P

anel

-2

Rel

ayIn

terlo

ckin

g ck

t -2

UFS

BI -

2

Blo

ck T

elep

hone

Blo

ck P

rovi

ng w

ith s

ingl

e se

ctio

n D

igita

l Axl

e co

unte

r & U

FSB

I

Fig: 2. Block Proving with single section Digital Axle Counter & UFSBI for Double Line



4

STAT

ION

- A

STAT

ION

- BB

lock

Sec

tion

Typ

ica

lly 1

0-2

0 km

s

SSD

AC

Axle

Sen

sor

44

SSD

AC -

1 D

n

SSDA

CAx

le S

enso

r

44

SSD

AC -

2 D

n

½ Q

uad

cab

le o

r 2 w

ire

voic

e ch

anne

l on

OF

C

Stat

ion

inte

rlock

ing

syst

em (

MA

CL,

RR

I,PI

, SS

I)

Pus

h b

utto

n ty

pebl

ock

ope

ratin

g pa

nel (

desig

ned

by R

DSO

)

Blo

ck in

terlo

ckin

gci

rcu

it w

ith Q

typ

e re

lays

(des

inge

d

by R

DSO

)

2/3

fail

safe

dig

ital

Mu

x U

FSB

I (a

s pe

r RD

SO/S

PN/

147/

97)

Stat

ion

inte

rlock

ing

syst

em (M

ACL,

RRI

,PI

, SSI

)

Push

but

ton

type

bloc

k op

era

ting

pa

nel (

des

igne

d

by R

DS

O)

Bloc

k in

terlo

ckin

gci

rcui

t with

Q ty

pe

rela

ys (d

esin

ged

by R

DSO

)

2/3

fail s

afe

digit

alM

ux U

FSB

I (as

pe

r RD

SO/

SPN/

147

/97)

Stat

us o

f V

ital r

elay

for

UP

& D

n L

ine (t

hrou

ghse

para

te p

oten

tial f

ree

cont

acts

Sta

tus

of V

ital r

elay

for

UP

& D

n Li

ne (t

hrou

ghse

para

te p

oten

tial fr

ee

cont

acts

1 Q

uad

cabl

e or

4 w

ire

voic

e ch

ann

el o

n O

FC

½ Q

uad

cab

le o

r 2 w

ire

voic

e ch

anne

l on

OF

C U

FSBI

- 1

Blo

ck P

ane

l -1

Rel

ayIn

terlo

cking

ckt -

1

Bloc

k Te

leph

one

Blo

ck P

anel

-2

Rel

ayIn

terlo

ckin

g ck

t -2

UFSB

I - 2

Bloc

k Te

leph

one

Blo

ck P

rovi

ng w

ith s

ingl

e se

ctio

n D

igita

l Axl

e co

unte

r & U

FSB

I

Fig: 3. Block Proving with single section Digital Axle Counter &

UFSBI for Single Line



5

3. v½ nksgjh ykbZu gsrq Cykd iSuy dk o.kZu a) Description of block panel for double line

SM’s Block Panel is provided with following KEYS for various functions.

SM key SM/ASM/Switchman’s control key.

The key when out prevents the following operations: a) Transmission of BELL code b) Transmission of IS LINE CLEAR enquiry request c) Cancellation of LINE CLEAR

LCB key LINE CLEAR BLOCKING key. It serves the following, when out, To prevent station in rear to take LINE CLEAR. To prevent closing of Block

SM’s Back Cover lock Key

To open or lock the back cover by SM/ASM/Switchman, when required by signal staff for maintenance or repairs.

Maintainer Back cover lock key

To open or lock the back cover by authorized signal staff, for maintenance or repairs, provided SM’s back cover lock key.

SM’s Block Panel is provided with following PUSH BUTTONS (non-locking type) & COUNTERS

BELL button (Black in colour)

a) To transmit BELL codes to station at other end of Block section.

b) To take LINE CLEAR, when pressed along with TRAIN GOING TO button.

To cancel LINE CLEAR, when pressed along with CANCEL button.

TRAIN GOING TO Button (Red in colour)

To transmit IS LINE CLEAR enquiry to station in advance for taking LINE CLEAR. It is used in conjunction with BELL button at train sending station to light up TRAIN COMING FROM (GREEN) indication on Block Panel of receiving station, which in turn automatically grants LINE CLEAR to light up TRAIN GOING TO (GREEN) indication on Block Panel of sending station.

ACKN button(s) (Black in Colour)

Two such buttons are provided, one each for dispatch line and receive line. To mute the SECTION buzzer on occupation or clearance of block section.

Cancel Co-op Button (Green in colour)

To give co-operation from sending station to cancel the line clear at receiving station.



6

CANCEL Button (Yellow in colour)

It is used in conjunction with BELL button at train receiving. Station under following conditions: a) There is no Train in the block section and Line clear cancellation needs to be done. b) Complete train has been pushed back at train sending station.

Cancellation Counter

To register cancellation of line clear.

c½ bdgjh ykbZu gsrq Cykd iSuy dk o.kZu b) Description of block panel for single line

SM’s Block Panel is provided with following KEYS for various functions.

SM key SM/ASM/Switchman’s control key. The key when out prevents the following operations: a) Transmission of BELL code b) Transmission of IS LINE CLEAR enquiry request c) Cancellation of LINE CLEAR

Shunt Release key

Shunt Release Key (normally OUT). The following operation is possible when IN, a) To take out SHUNT KEY from electric key transmitter (EKT), which serves as tangible authority for Driver to shunt beyond Last Stop Signal up to First Stop Signal. b) The following operations are not possible when IN; (i) To take LINE CLEAR. (ii) Other side station to take LINE CLEAR. (iii) Closing of block. (iv) To take Last Stop Signal to “OFF”.

SM’s Back Cover lock Key

To open or lock the back cover by SM/ASM/Switchman, when required by signal staff for maintenance or repairs.

Maintainer Back cover lock key

To open or lock the back cover by authorized signal staff, for maintenance or repairs, provided SM’s back cover lock key.

SM’s Block Panel is provided with following PUSH BUTTONS (non-locking type) & COUNTERS

BELL button (Black in colour)

a) To transmit BELL codes to station at other end of Block section.

b) To take LINE CLEAR, when pressed along with TRAIN GOING TO button.

c) To cancel LINE CLEAR, when pressed along with CANCEL button.



7

TRAIN GOING TO Button (Red in colour)

To transmit IS LINE CLEAR enquiry to station in advance for taking LINE CLEAR. It is used in conjunction with BELL button at train sending station to light up TRAIN COMING FROM (GREEN) indication on Block Panel of receiving station, which in turn automatically grants LINE CLEAR to light up TRAIN GOING TO (GREEN) indication on Block Panel of sending station.

ACKN button (Black in Colour)

One button is provided, for despatch line and receive line. To mute the SECTION buzzer on occupation or clearance of block section.

Cancel Co-op Button (Green in colour)

To give co-operation from sending station to cancel the line clear at receiving station.

CANCEL Button (Yellow in colour)

It is used in conjunction with BELL button at train receiving. Station under following conditions: a) There is no Train in the block section and Line clear

cancellation needs to be done. b) Complete train has been pushed back at train sending station.

Cancellat ion Counter

To register cancellation of line clear.

4. CykWd iSuy Block panel

(a) Keys & Switches: The LCB key is L&T make (ESBEE brand) with catalog

number HK85C3 for Key Actuator & HC61A2 (1 NO) / HC61B2 (1 NC) for Elements. The SM’s key is Siemens make.

(b) LED’s used are of high intensity super bright water clear type of Agilent make and have 5 mm diameter with a viewing angle of 15.

(c) Electromagnetic Impulse Counter: Electro magnetic impulse counter is of 6 Digit, 10 impulses per second minimum, 24V DC non-resettable type, Keltron Make.

(d) Buzzers: Piezo make buzzers (Continuous and Intermittent) working at 24 Volts (+20% -10%) DC for audio alarm is provided to register the BELL CODE sent by other end SM & to register the occupation and clearance of each block Section. The buzzer for receiving line is intermittent and for dispatch line it is continuous type. Provision to mute the audio alarm by pressing an Acknowledgement push button is provided. The Block buzzer works through block telephone line.

4.1 CykWd VsyhQksu Block telephone

(a) This is provided for speech communication with SM at other end of Block section.

(b) Separate block telephone is provided for separate block section. (c) Block panel has provision for hanging block telephone as shown in drawing.

No. RDSO /S 32019 Sheet no 3 of 3 for Single Line and drawing no. RDSO/S 32017 Sheet no. 3 of 3 for Double Line as shown in drawing.



8

5. DokM dsfcy ;k okW;l pSuy Quad cable or voice channel

(a) Provision for 2 1/2 quad or 4 voice channels (1 no. 4 wire & 3 nos. 2 wire) in OFC for Double Line.

(b) Provision for 2 quad or 3 voice channel (1no. 4 wire & 2nos. 2wire) in OFC for Single Line.

(c) As shown in drg. No. RDSO/S-32017 sheet no1/3 for Double Line and drg. No. RDSO/S-32019 sheet no 1/3 for Single Line are to be provided by the Railways. Cables will be as per specification TC 30/97.

6. CykWd iSuy dks lfEefyr djrs gq;s ,Dly dkm.Vj iz.kkyh ds lkFk Cykd izwfoax

Block proving with Axle counter system comprising of block panel

Universal Fail Safe Block Interface and the relays

(a) Works on 24 V D.C. with a Maximum current consumption of 5A.Railways need to provide: Separate power supply for Block Panel, UFSBI & relays

(b) Separate power supply for Digital Axle Counter (c) Separate power supply for Block Telephone (d) Battery Charger / Module of IPS: (e) The charger will be as per IRS S-86 / 2000 to cater 5 A/24 V DC load. (f) The IPS module shall be as per RDSO/SPN/165/2004 to cater 5 A/24

V DC load. (g) Relay Rack & Signaling Relays: (h) All the relays used as per the circuit diagram are of RDSO approved

make. (i) Relay rack is housed inside the same UFSBI cabinet. The Electronic

Fail Safe timer (IRS: S 61/2000) is micro controller based. Relays are as per nomenclature of relays as per drawing Number- RDSO/S-32018 for double line with UFSBI and as per drawing Number RDSO/S-32020 for Single Line with UFSBI.

6.1 fjys jSd eas fHkUu fHkUu fjys Various relays in the relay rack

Relays are as per nomenclature described in Para a & b.

a) Nomenclature of relays for double line with UFSBI as per drawing number-RDSO/S-32018. The nomenclature of various relays in the relay rack used at each station is given below:

S. No.

RELAY RELAY TYPE

DESCRIPTION NORMAL STATUS

FUNCTION

1. TGTR QL1, 11F.4B

Train Going To Relay.

DROP Operates to pick up on receipt of LINE CLEAR at train sending station. Normalizes, when station in advance sets to Line closed after train arrival or cancellation of LINE CLEAR.



9

S. No.

RELAY RELAY TYPE


FUNCTION

2. TCFR QL1, 11F.4B

Train Coming From Relay.

DROP Operates to pick up on receipt of LINE CLEAR enquiry from train sending station. Normalizes after complete train arrival or cancellation of LINE CLEAR.

3. ASCR

QN1, 8F.8B

Advance Starter Signal Control Relay

DROP Picks up, when LINE CLEAR is available and necessary controls are reversed by SM. Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Withdrawal of any SM control.

4. TGTXR QN1,8F.8B Train Going To code Relay.

DROP Picks up at train sending station pressing of buttons for LINE CLEAR enquiry. Drops when train sending station releases buttons for LINE CLEAR enquiry or picking up of TGTR which ever is earlier.

5. TGTYR QN1, 8F.8B

Train Going To code Receive Relay.

DROP Picks up on receipt of LINE CLEAR at train sending station Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Cancellation of Line Clear.

6. 120 JPR QN1, 8F.8B

Timer mature repeater Relay.

DROP Picks up on maturity of Timer for cancellation. Drops when block status set to Line Closed.

7. BPNR QN1, 8F.8B

Bell Push button Relay.

DROP Picks up on pressing of BELL push button with SM’s Key IN, else drops.

8. TGTNR QN1, 8F.8B

Train Going To button Relay.

DROP Picks up on pressing of TRAIN GOING TO push button, else drops.

9. CNR QN1, 8F.8B

Cancel button Relay.

DROP Picks up on pressing of CANCEL push button, else drops.

10. FR1 QN1, 8F.8B

Flash controller Relay No. 1.

DROP Toggles when Cancellation commenced or any other abnormal condition occur.

11. FR2 QN1, 8F.8B


DROP Toggles when Cancellation commenced or any other abnormal condition occur.

12. TAR1 QNA1, 8F.8B

Train Arrival First Relay.

DROP Picks up when control on Reception Signal is Reverse and HS AT occupied by train and



10

S. No.

RELAY RELAY TYPE


FUNCTION

HS BT clear. Drops when AT clear with a delay.

13. TAR2 QN1, 8F.8B

Train Arrival Second Relay.

DROP Picks up when control on Reception Signal is Reverse and HS AT is clear and HS BT occupied by train. Drops when block status set to Line Closed.

14. CAR QN1, 8F.8B

Cancel relay.

DROP Picks up at Train receiving station on initiation of cancellation, provided all controls pertaining to Advance Starter and Reception Signal/Signals and signals controlled by them are at Normal at both the stations. Drops when cancellation matures and system goes to Line Closed condition.

15. BTSR QN1, 8F.8B

Block Track Stick Relay.

PICK UP Picks up when Block status is LINE CLOSED and Block track is clear. Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Cancellation of Line Clear.

16. [R] AZTR

QNA1, 8F.8B

Block Section track Relay of receive line.

PICK UP Drops in the under mentioned cases: (a) Entry of train in block section, or (b) Axle Counter failure.

17. [D] AZTR

QNA1, 8F.8B

Block Section track Relay of dispatch line.

PICK UP Drops in the under mentioned cases: (a) Entry of train in block section, or (b) Axle Counter failure

18. TGTZR QN1, 8F.8B

Advance starter signal normal checking repeater Relay.

PICK UP Picks up to repeat Line Closed condition at train receiving station after arrival of train or after a Line Clear cancellation has been initiated, else drops.

19. TCFXR QN1, 8F.8B

TRAIN COMING FROM code Receive Relay.

DROP Picks up on receipt of LINE CLEAR enquiry from train sending station. Drops when station in rear releases buttons for LINE



11

S. No.

RELAY RELAY TYPE


FUNCTION

CLEAR enquiry or TGTR pick up which ever is earlier.

20. 120 EJ Electronic Time delay unit (Fail Safe)

Timer unit for cancellation time of 120 seconds.

DROP

21. HS ATPR

QNA1, 8F.8B

First track for direction proving repeater Relay.

PICK UP Picks up when HSAT track circuit is vacant, else drops.

22.

HS BTPR

QNA1, 8F.8B

Second track for direction proving repeater Relay.

PICK UP Picks up when HS BT track circuit is vacant, else drops.

23. AS GNCR

QNA1, 8F.8B

Advance Starter Signal Normal Checking Relay.

PICK UP Picks up when Advance Starter Signal and all its controls are at Normal, else drops.

24. HS GNCR

QNA1, 8F.8B

Reception Signal Normal Checking Relay

PICK UP Picks up when Reception signal/signals and all its controls are at Normal, else drops.

25. AS GNCPR

QN1, 8F.8B PICK UP

Advance Starter Signal Normal checking (for other station) Relay

PICK UP Picks up when Advance Starter Signal and all its controls are Normal at the other station, else drops.

26. BIPR1 QN1, 8F.8B

UFSBI health checks Relay.

TOGGLE


UFSBI health checks Relay.

TOGGLE

28. TCFCR QN1, 8F.8B

Train Coming From Cancellation Relay.

DROP Picks up at receiving station when CANCEL CO OP button is pressed at sending station, else drops.

29. BLR QN1, 8F.8B

Bell Relay

DROP Picks Up When Other Station Presses the Bell Button

b) Nomenclature of relays for Single line with UFSBI as per drawing number

RDSO/S-32020.

The nomenclature of various relays in the relay rack used at each station is given below:

S. No

RELAY RELAY TYPE

DESCRIPTIONNORMALSTATUS

FUNCTION

1. TGTR QL1, 11F.4B

Train Going To Relay.

Drop

Operates to pick up on receipt of LINE CLEAR at Train sending station Normalizes, when station in advance sets to Line Closed after train arrival or cancellation of LINE Enquiry from train



12

S. No

RELAY RELAY TYPE


FUNCTION

sending station.

2. TCFR QL1, 11F.4B

Train Coming From Relay.

Drop Operates to pick up on receipt of LINE CLEAR. Normalizes after complete train arrival or Cancellation of LINE CLEAR.

3. ASCR QN1, 8F.8B

Advance Starter Signal Control Relay

Drop Picks up, when LINE CLEAR is available and Necessary controls are reversed by SM. Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Withdrawal of any SM control.

4. TGTXR QN1, 8F.8B

Train Going To code Relay

Drop Picks up at train sending station pressing of buttons for LINE CLEAR enquiry. Drops when train sending station releases buttons for LINE CLEAR enquiry or Picking up of TGTR which ever is earlier.

5. TCFXR QN1, 8F.8B

TRAIN COMING FROM code Receive Relay

Drop Picks up on receipt of LINE CLEAR enquiry from Train sending station Drops when station in rear releases buttons for LINECLEAR enquiry or TGTR pick up which ever is earlier

6. TGTYR QN1, 8F.8B

Train Going To code Receive Relay

Drop Picks up on receipt of LINE CLEAR at train sending Station. Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Cancellation of Line Clear.

7. 120 JPR QN1, 8F.8B

Timer mature repeater Relay

Drop Picks up on maturity of Timer for cancellation. Drops when block status set to Line Closed.

8. BPNR QN1, 8F.8B

Bell Push button Relay.

Drop Picks up on pressing of BELL push button with SM’s Key



13

S. No

RELAY RELAY TYPE


FUNCTION

IN, else drops.

9. TGTNR QN1, 8F.8B

Train Going To button Relay

Drop Picks up on pressing of TRAIN GOING TO push button, else drops

10. CNR QN1, 8F.8B

Cancel button Relay

Drop Picks up on pressing of CANCEL push button, else drops.

11. FR1 QN1, 8F.8B


Drop Toggles when Cancellation commenced or any other abnormal condition occur

12. FR2 QN1, 8F.8B


Drop Toggles when Cancellation commenced or any other abnormal condition occur

13. TAR1 QNA1, 8F.8B

Train Arrival First Relay

Drop Picks up when control for Reception Signal is Reverse and HS AT occupied by train and HS BT Clear. Drops when AT clear with a delay.

14. TAR2 QN1, 8F.8B

Train Arrival Second Relay

Drop Picks up when control for Reception Signal is Reverse and HS AT is clear and HS BT occupied by train. Drops when block status set to Line Closed

15. CAR QN1, 8F.8B

Cancel relay Drop Picks up at Train receiving station on initiation of cancellation, provided all controls pertaining to Advance Starter and Reception Signal/Signals and signals controlled by them are at Normal at both the stations. Drops when cancellation matures and system goes to Line Closed condition

16. BTSR QN1, 8F.8B

Block Track Stick Relay

PICK UP

Picks up when Block status is LINE CLOSED and Block track is clear. Drops in any of the under-mentioned cases: a) Entry of train in Block Section. b) Cancellation of Line Clear.

17. AZTR

QNA1, 8F.8B

Block Section track Relay of dispatch line

PICK UP

Drops in the under mentioned cases: (a) Entry of train in block



14

S. No

RELAY RELAY TYPE


FUNCTION

section, or (b) Axle Counter failure

18. TGTZR QN1, 8F.8B

Advance starter signal normal checking repeater relay.

PICK UP

Picks up to repeat Line Closed condition at train receiving station after arrival of train or after a Line Clear cancellation has been initiated, else drops.

19. 120 EJ Electronic

Electronic Time delay unit (Fail Safe)

Timer unit for cancellation time of 120 seconds. Time delay.

DROP

20. HS ATPR

QNA1, 8F.8B

First track for direction proving repeater Relay.

PICK UP Picks up when HSAT track circuit is vacant, else drops.

21. HS BTPR

QNA1, 8F.8B

Second track for direction proving repeater Relay.

PICK UP Picks up when HSBT track circuit is vacant, else drops.

22. AS GNCR

QN1, 8F.8B

Advance Starter Signal Normal Checking Relay

PICK UP Picks up when Advance Starter Signal and all its controls are at Normal, else drops.

23. HS GNCR

QN1, 8F.8B

Reception Signal Normal Checking Relay.

PICK UP Picks up when Reception signal/signals and all its controls are at Normal, else drops.

24. TCFCR QN1, 8F.8B

Train Coming From Cancellation Relay.

DROP Picks up at receiving station when CANCEL CO OP Button is pressed at sending station, else drops.

25. TCFZR QN1, 8F.8B

Train Coming From Normal Proving Relay

DROP Picks up at receiving station when TCFR drops, else drops

26. TGTPR QN1, 8F.8B

Train Going To Normal Proving Relay

DROP Picks up at train sending station when TGTR drops, else drops

27. SHKR QN1, 8F.8B

Shunt Key Indicating Relay

PICK UP Picks up when EKT is “IN” & Shunt Release Key is “OUT”, else drops

28. AS GNCPR

QN1, 8F.8B

Advance Starter Signal Normal checking (for other station) Relay

PICK UP Picks up when Advance Starter Signal and all its Controls are Normal at the other station, else drops.


UFSBI health checks Relay

TOGGLE



15

S. No

RELAY RELAY TYPE


FUNCTION


UFSBI health checks Relay

TOGGLE

31. BLR QN1, 8F.8B

Bell Relay

DROP

Picks Up When Other Station Presses the Bell Button

7. rduhdh fooj.k Technical details

a) Technical details of Block equipment working with UFSBI for Double Line: TO DISPATCH A TRAIN

AT SENDING STATION AT RECEIVING STATION

The fol lowing relays are normal ly energized in LINE CLOSED ASGNCR , [D] AZTR The fol lowing indicat ions appear in the block panel LINE CLOSED–Yellow, SNK-Yellow, SNOEK-Yellow, LINE FREE– green, Last Stop Signal – Red

The fol lowing relays are normally energized in LINE CLOSED BTSR , HSATPR , HSBTPR , HSGNCR , [R]AZTR , ASGNCPR , The fol lowing indicat ions appear in the block panel LINE CLOSED –Yellow, SNK-Yellow, SNOEK-Yellow, LINE FREE-Green, Last Stop Signal – Red

1 a) SM at sending station inserts its SM key and turns to “IN” position. SM Key - Green.

b) Presses BELL button. BPNR and TRAIN GOING TO button.

TGTNR. c) TGTXR relay picks up, provided the conditions for receiving LINE

CLEAR exist and transmits LINE CLEAR enquiry.

Waits for ‘TRAIN GOING TO” Indication to light up GREEN.

2 a) TCFXR picks up. b) TCFR operates and latches, provided the conditions for granting LINE CLEAR exist. c) ‘LINE CLOSED’ turns ‘OFF’. d) TCFK (G) “TRAIN COMING FROM” indication GREEN turns ‘ON’. e) Sends LINE CLEAR granted code.

3 a) TGTYR picks up. b) TGTZR. c) TGTR picks up and latches and

TGTXR. d) “LINE CLOSED” indication

turns ‘OFF’. e) TGTK (G) “TRAIN GOING TO”

indication lights up GREEN. f) Releases BELL and TRAIN

GOING TO buttons. BPNR

4 TCFXR. ASGNCPR, SNOKE extinguished.



16

TGTNR. g) Advance Starter signal can be

taken ‘OFF’ by SM control. ASGNCR ASCR, SNK “OFF”, LSS - Green.

5 a) Train enters Block Section ASCR, AZTR, BTSR. b) LINE OCCUPIED indication

turns RED. c) TGTK (G) indication changes to

TGTK(Red). LSS – Red. d) SECTION Buzzer sounds with

indication near ACKN button. e) SM presses ACKN to silence the

SECTION buzzer and turn ‘OFF’ aforesaid indication.

f) TGTYR. g) Restores all Signal controls to

Normal. ASGNCR, SNK-Yellow

6 a) Train enters Block Section. b) AZTR, BTSR. c) LINE OCCUPIED indication turns

RED. d) TCFK (G) indication changes to TCFK

(Red). e) SECTION Buzzer sounds with

indication near ACKN button. f) SM presses ACKN to silence the


g) ASGNCPR, SNOKE- YELLOW. h) Train in section.

7 a) Train is received by reversing the Home Signal Lever,

HSGNCR, SNK- ‘OFF’. b) Train occupies HSAT, HSATPR, TAR1 and sticks. c) Train occupies HSBT, HSBTPR and

clears HSAT, HSATPR TAR2 and sticks.

d) TAR1. e) AZTR, Line Free “Green”. f) SECTION Buzzer sounds with

indication near ACKN button. g) SM presses ACKN to silence the


h) FR1 and FR2 operate to give flashing indications.

i) TCFK(Red) changes to TCFK (flashing green).

8. a) AZTR. b) LINE FREE indication turns “Green”. c) FR1 and FR2 operate to give flashing indications. d) TGTK(Red) changes to TGTK (flashing green).

9. a) Normalizes all controls to pick up HSGNCR.

b) Waits for TGTZR to pick up and on its pick up, de-latches TCFR.

c) BTSR. d) LINE CLOSED indication turns ON. e) TCFK (flashing green) turns OFF.

10 a) TGTR, TGTZR. b) LINE CLOSED indication turns



17

ON. c) TRAIN GOING TO (Flashing Green) indication turns OFF.

b) Technical details of Block equipment working with UFSBI for Single Line: TO DISPATCH A TRAIN

AT SENDING STATION AT RECEIVING STATION

The following relays are normally energized in LINE CLOSED ASGNCR, AZTR, BTSR, ASGNCPR, SHKR , HSGNCR The following indications are ON LINE CLOSED – Yellow, SNK-Yellow, SNOEK-Yellow, LINE FREE – green, Shunt Key Green, Last Stop Signal – Red

The following relays are normally energized in LINE CLOSED BTSR, HSATPR, HSBTPR, HSGNCR, AZTR, ASGNCR, ASGNCPR, SHKR The following indications are ON LINE CLOSED –Yellow, SNK-Yellow, SNOEK-Yellow, LINE FREE-Green, Shunt Key Green, Last Stop Signal – Red

1 a) The SM at sending station inserts its SM key and turns it to “IN” position. SM Key – Green.

b) Presses BELL button. BPNRand TRAIN GOING TO button. TGTNR.

c) TGTXR relay picks up, provided the conditions for receiving LINE CLEAR exist and transmits LINE CLEAR enquiry.

Waits for ‘TRAIN GOING TO”

Indication to light up GREEN.

2 a) TCFXR picks up. b) TCFR operates and latches, provided the conditions for granting LINE CLEAR exist. c) ‘LINE CLOSED’ turns ‘OFF’. d) TCFK (G) “TRAIN COMING FROM” indication GREEN turns ‘ON’. e) Sends LINE CLEAR granted code.

3 a) TGTYR picks up. b) TGTZR. c) TGTR picks up and latches and TGTXR. d) “LINE CLOSED” indication turns ‘OFF’. e) TGTK (G) “TRAIN GOING TO” indication lights up “GREEN”. f) Releases BELL and TRAIN GOING TO buttons. BPNR TGTNR. g) Advance Starter signal can be taken ‘OFF’ by SM control. ASGNCR , ASCR, SNK OFF, LSS – Green.

4 TCFXR. ASGNCPR, SNOEK turns OFF.

5 a) Train enters Block Section ASCR, AZTR, BTSR. b) LINE OCCUPIED indication

6 a) Train enters Block Section. b) AZTR, BTSR.



18

turns RED. c) TGTK (G) indication changes to TGTK (Red) LSS – Red. d) SECTION Buzzer sounds with indication near ACKN button. e) SM presses ACKN to silence the SECTION buzzer and turn ‘OFF’ aforesaid indication. f) TGTYR. g) Restores all Signal controls to Normal. ASGNCR, SNK-Yellow h) Train in section.

c) LINE OCCUPIED indication turns

RED. d) TCFK(G) indication changes to

TCFK(Red) e) SECTION Buzzer sounds with

indication near ACKN button. f) SM presses ACKN to silence the


g) ASGNCPR, SNOEK- YELLOW. h) Train in section.

7 a) Train is received by reversing the Home Signal Lever,

HSGNCR, SNK- ‘OFF’. b) Train occupies HSAT, HSATPR, TAR1 and sticks. c) Train occupies HSBT, HSBTPR and

clears HSAT, HSATPR TAR2 and sticks.

d) TAR1. e) AZTR, Line Free Green. f) SECTION Buzzer sounds with

indication near ACKN button. g) SM presses ACKN to silence the


h) FR1 and FR2 operate to give flashing indications.

i) TCFK(Red) changes to TCFK (flashing green).

8. a) AZTR. b) LINE FREE indication turns GREEN. c) FR1 and FR2 operate to give flashing indications. d) TGTK(Red) changes to TGTK (flashing green).

9. a) Normalizes all controls to pick up HSGNCR. b) Waits for TGTZR to pick up and on its pick up, de-latches TCFR. c) BTSR. d) LINE CLOSED indication turns ON. e) TCFK (flashing green) turns OFF.

10 a) TGTR, TGTZR. b) LINE CLOSED indication turns



19

ON. c) TRAIN GOING TO (Flashing Green) indication turns OFF.

8. fjys jSd dh ok;fjax Wiring of relay rack

(a) The relay rack is wired using 16 / 0.2 wire conforming to specification IRS: S-

76/ 89 (latest). (b) Every wire is terminated properly. Termination of wires is done on non-

disconnecting type terminals of Phoenix / Wago make with DIN rail mounting arrangements.

(c) Individual termination is marked with a unique number for easy identification. (d) Wiring of relay rack is properly bunched.

9. vkarfjd ikWoj lIykbZ dk fof’k"Vhdj.k Internal power supply specifications

(a) DC-DC Converter is provided to derive the necessary voltages to operate the UFSBI from the external 24 V source. These internal power supplies are in hot Standby mode.

(b) The system operates with nominal 24 V DC input supply. (c) DC-DC Converter derives Input 24 V DC (+ 20% -10%) (i) Output 24 V DC, 4 Amps (ii) 5 V DC, 4 Amps (iii) +12 V DC, 1.5 Amps (iv) –12 V DC, 1 Amp

10. ikWoj lIykbZ ds vfHky{k.k Features of the power supply are

(a) Input-output isolation. (b) Input over voltage and under voltage protection. (c) Output short circuit and over load protection. (d) 24 V DC output is isolated from other outputs. (e) Ripple is less than 50 mV at rated value. (f) Efficiency is more than 70%. (g) Is capable to work in “HOT STAND-BY” mode.



20

11. ekWMse dk fof’k"Vhdj.k Modem specifications (a) Asynchronous 2400 bps, V.22 BIS, 4 wire, (b) Leased line modem is used to interface (c) UFSBI-MUX serial data to voice-channel provided by the Railway. (d) Allowable Channel Loss: 25 dB (max.) between 2 modems

12. lkoZf=d Qsy lsQ CykWd baVjQsl Universal fail safe bloc interface

12.1 iz.kkyh dk fooj.k System description

The system requirement specification of the “Universal Fail-safe Block Interface (UFSBI)” equipment as per specification147/97 is given below.

12.2 lkekU; o.kZu General

a) The UFSBI system acting as multiplexer for communicating the commands from one block panel to other in a fail safe manner, transfer block instrument signals (DC and analog FM signals converted to status) to the other end. The communication is full duplex. The medium of communication is digital channels of Optical fiber, copper cable or microwave radio. .

b) The UFSBI with its accessories, Interlocking relays and power supply are housed in a cubicle, called UFSBI-Cubicle.

12.3 dk;Z djus dk fl/nkar Principle of working

(a) The trains are worked on Absolute Block system. (b) Each block section is provided with an Axle Counter to verify the occupation

or clearance of block section and indicated on Block Panel. (c) It is not possible to clear Last Stop Signal to ‘OFF’ unless LINE CLEAR has

been obtained from the station in advance. (d) It is not possible to take LINE CLEAR unless block section and an adequate

distance beyond first stop signal of station in advance is clear of trains (e) The Last Stop Signal assumes ‘ON’ aspect automatically on entry of train into

block section and when so replaced, is maintained in its ‘ON’ position, till a fresh LINE CLEAR is obtained on block panel.

(f) Block section show automatically Train on Line on panel when train enters into the block section on line clear.

(g) Train entry/exit buzzer, to/ from block section are provided and to be acknowledged.

(h) Block section automatically closes on complete arrival of train at the receiving station.

(i) A control to prevent the station in rear to take LINE CLEAR on its Block Panel without taking consent of receiving station.

(j) A control to cancel the LINE CLEAR, already taken by station in rear. (k) It is possible to close the block section only, if no trains have entered the

Block Section for at least 120 seconds after application of cancellation with co-operation from station in rear.



21

13. bySDVªkWfud dkMZ dh igpku Identifications of electronic cards

The system consists of 6 Input Cards, 3 CPU Cards, 2 Output Cards and 1 Control & Communication Card. All these cards are mounted inside a 6U rack. The mounting arrangement and identification of the respective cards are shown in the fig. given below:

Fig: 4. Identification of Cards in 6U Rack

Legends Used Description

A Input Card1 for CPU-A B Input Card2 for CPU-A C Input Card1 for CPU-B D Input Card2 for CPU-B E Input Card1 for CPU-C F Input Card2 for CPU-C G CPU – A H CPU – B I CPU – C J Output Card1 K Output Card2 L Control & Communication Card



22

14. gkMZos;j <kaps dk fuekZ.k Hardware architecture The Block Proving with Axle Counter using UFSBI includes component.

Circuit for Surge Arrestor Module (SAM)

Fig 5. Circuit for Surge Arrestor Module(SAM)

15. ;w-,Q-,l-ch-vkbZ- ds <kaps dk o.kZu UFSBI configuration details



23

Fig: 6. 16. ;w-,Q-,l-ch-vkbZ- dk irk UFSBI address

(a) Configuration Jumpers (b) The Address Configuration jumpers are set in the Connector side of the Motherboard. A pattern of this jumper setting is shown below:

Left Cente Righ Left Cente Righ

TX TX12345678

RX RX9

10111213141516

Fig: 7.



24

(c) Left Center Right (d) The TX Address of one unit should correspond with the RX Address of other

unit. The Same type of settings should not be used in the adjacent pair of units. NOTE: 9 unique Address Configuration Jumpers are given in Annexure A of the firm manual.

17. ;w-,Q-,l-ch-vkbZ- laLFkkiu ds funsZ’k UFSBI installation guide

The following practices are to be observed in installing UFSBI at site:

(a) Battery. (b) Battery Charger (c) Earthing: Good earthing is to be provided preferably less than 2 ohm (d) Communication Channel: (e) Allowable Channel Loss: 30 dB (max.) between 2 modems (f) SNR: 20 dB (minimum) (g) Transmit Power: -2 dBm (maximum at modem Tx pin) (h) Receive Level: -32 dBm (minimum at modem Rx pin) (i) The channel should be of good quality and must have steady performance for at least 72 hours before commissioning

NOTE: A list of commissioning pre-requisites in the form of a check sheet is provided in the manual 18. laLFkkiu ds nkSjku tkap Check during installation 18.1 fQftdy ijh{kk dh vko’;drk Physical examination required for

(a) Connectors (b) Relays and Relay-bases (c) All the PCB modules (d) Rack and the mainframe (e) Card Guides (f) Motherboard (g) Interconnecting ribbon cables and wires (h) Reset Box (i) Modem

18.2 ikWoj lIykbZ Power supply

(a) Battery Voltage should not exceed the range: 19.5 V to 28.8 V DC. (b) Ensure that the above supply is not arbitrarily grounded. (c) Before insertion of other modules, DC-DC converter is to be connected to the

Battery Supply and its correct output levels should read as: (i) 5 V [+/- 3%) (ii) +12 V [+/- 2%] (iii) –12 V [+/- 2%] (iv) 24 V [+/- 5%]



25

18.3 ;w-,Q-,l-ch-vkbZ- dk vkjEHk gksuk Starting the UFSBI

Installation of system is kept very simple; as such no elaborate procedure is required except those given as under: (a) Plug in all the relays to the respective relay bases as per Relay disposition

chart. (b) Insert all the PCB’s in the 6U Rack. (c) Plug in all the connectors to their matched counter part as the length or wire

groups corresponding to each counter part are optimally fixed. (d) Probability of wrong connection is ruled out.

18.4 Lkko/kkfu;ka Precautions

For removing and fitting PCB in the unit, please switch off the power Supply. Now switch ‘ON’ the power supply of the unit and check for: (a) All the indications in DC-DC converter. (b) Red indication in Reset Box and Buzzer sounds. (c) Press the RESET switch and wait for 5 seconds. (d) Press the BIPR ON switch. BIPR1 and BIPR2 relays will pick up. (e) Buzzer stops and red indication in reset box changes to green. (f) All CPU’s will display “00” indicating UFSBI is normal. (g) Now UFSBI starts functioning in loop. (h) Railways are to provide the following facilities for installation and

commissioning of Block panel with UFSBI (i) Battery & Battery Charger (j) Terminal Block for field connections. (k) Earthing: A good earthing for termination of the equipment (l) A 4 wire full duplex OFC Voice Channel or Quad cable) The block Operation through Block Proving With Axle Counter using UFSBI

is to be kept under observation at least for three up and three down movements’ of Trains.

A close monitoring of the train movements through Block Proving With Axle Counter using UFSBI is to be done at least for 48 Hrs after immediate installation and commissioning of the system.

19. vuqj{k.k Maintenance 19.1 izfrca/kd vuqj{k.k Preventive maintenance

Power supply: power supply unit of any type is the single Source responsible for most of the equipment faults and malfunctioning. A Regular check on power supply units such as battery banks, battery charger and DC-DC converters are mandatory. Relays: UFSBI has used most reliable type of relays, but special care and testing is required for those to be used after long storage. No attempt is to be made to repair a relay. Use a new one



26

19.2 lapkj fyad dk vuqj{k.k Maintenance of communication link

(a) Telecom cable is to be protected from injury during other kinds of installation at its vicinity.

(b) If disconnection of cable is required, the cable terminal is to be refitted firmly. (c) The loss of signal due to lossy cable is to be kept under check. (d) The display indication “33” indicates link failure. If the modem is found to be

OK, next to be checked is the telecom cable. 19.3 midj.k dk vuqj{k.k Maintenance of equipment

(i) UFSBI unit will automatically trip-off if the Battery supply goes below 19.2 V & above 28.8 V DC. In case of repeated trip-off, both the DC supply level and the loading is to be checked. A healthy UFSBI should not draw more than 1.8 Amp DC.

(ii) No attempt of “resetting” is to be made in case of supply impairment or link failure,

(iii) If a faulty UFSBI system is not brought back to normal after “resetting” one must check:

Is there any loosely fitted connector or improperly pressed PCB module. Connecting leads inserted in Terminal. The DC supply levels of the DC-DC converter.

(iv) For specific information on faults, refer “UFSBI Error Code List” of the manual.

Once a fault is found, the user should not attempt repairing at component level. The impaired module / PCB needs to be replaced by a spare one.

20. djsa o u djsa Do’s and don’ts

(a) UFSBI system is to be operated or maintained only by trained persons. (b) No attempt is to be made to operate the equipment at Battery Voltage ranging

below 19.2 V and above 28.8 V DC. (c) Connectors or PCBs is to be plugged in or out after switching off the Power

Supply. (d) “RESET” should not be applied in case of “Link Failure” or “Supply” Break

Down. (e) Replacement of components or modules is to be done with spares supplied/

prescribed by the manufacturer. (f) While plugging in / out a PCB, care is to be taken to avoid application of

Excessive force. (g) Arbitrary grounding should not be done to any “common” terminal inside the

equipment. (h) Relay testing should not be performed involving forced ‘pick-up’ or ‘drop’

while the instrument is ’ON’. (i) Standard restrictions against mishandling and opening of Block Instrument are

applicable also to UFSBI.



27

21. [kjkfc;ka Failures

(a) Note the indication codes shown on the CPU and the LED on the Output cards and the Control & Communication card.

(b) It should also be recorded that under which condition the failure occurs, i.e. Whether it occurs repeatedly during a certain operation or is it flitting in nature.

(c) Perform a Power-On-Reset following the steps given in the item II.15 of Block Panel with UFSBI, Users Manual.

(d) In case the problem persists or recurs even after Power-On-Reset then follow the “Fault finding Procedure” as stated in Annexure C of the manual.

(e) During troubleshooting, whenever directed to check the effect of any change or replacement of card, please perform Power-On-Reset as stated in the item.

21.1 mik; ds dk;Z Remedial actions

RESET BOX: consists of the following components as shown in figure No 8. The functions of all the components are given below:

Fig : 8

RESET BOX

a) Counter: It keeps track of the number of Reset operations taking place. The

Counter is non-resettable type i.e. the readings of this counter cannot be altered.

b) RESET Button: sometimes the power-off and power-on sequence may not lead to Display "0b” (ready to press BI- ON button) on all CPUs. In that case Press the RESET button so that the CPUs again reset itself to show “0b” (ready to press BI-ON button) on all CPUs.

c) BI-ON BUTTON: This button is required for starting the system. Whenever

all the CPUs display “0b”, it indicates that it is ready for start. The user has to press this button for starting the system.

d) BZ-ACK BUTTON: This button is required for acknowledging the buzzer

whenever it sounds due to dropping of “Shut down relays” (BIPR1 & BIPR2). e) BI-OK IND.: This indication (green) glows when the Block Interface is in

working condition. Normally on indication. f) BI-FAIL IND.: This indication (red) glows when the Block Interface is in

failure mode. Normally off indication.

COUNTER

BZ-ACK

BI - ON RESET

BI - OK BI - FAILLINK FAIL

0 0 0 0 0 0



28

g) LINK FAIL IND.: This indication (yellow) glows steadily when the modem

fails to receive any data from remote station. In normal working condition, when the Modem receives data from remote station, this indication (yellow) will flicker continuously.

21.2 ikoj vkWu fLFkfr esa jhlsV izfØ;k The power – ON - reset operation

The following steps are to be performed for carrying out the RESET operation of the UFSBI.

Turn off the system power. Wait for 1 minute. Power-on the system. Check the display of the CPU. Wait till the display on all the CPUs display

“0b”, If “0b” is not displayed, try by pressing the RESET button. If the problem

persists, check corresponding codes in the error code list and take appropriate action as suggested in the remedial action column.

If all the CPUs display “0b” then press the BI-ON button. Observe that both BIPR1 and BIPR2 pick up immediately after BI-ON is

pressed. Once BIPR1 and BIPR2 pick up, BI fail (Red) indication goes off and BI OK

(Green) indication comes on, Link fail (Yellow) steady indication goes off & starts flickering as soon as the

Modem starts communicating with remote station modem and all the CPU’s display “00”.

21.3 jhlsV vkWijs’ku The Reset operation

The following steps are to be performed for carrying out the RESET operation of the UFSBI:

(a) Press the Reset Button and see that the display in all 3 CPU’s becomes “0b“ (b) Wait till the display on all the CPUs display “0b”, (c) If “0b” is not displayed, try by pressing the RESET button. If the problem

persists check corresponding codes in the error code list and take appropriate action as suggested in the remedial action column.

(d) If all the CPUs display “0b” then press the BI-ON button. (e) Observe that both BIPR1 and BIPR2 pick up immediately after BI-ON is

pressed. (f) Once BIPR1 and BIPR2 pick up, BI fail (Red) indication goes off and BI OK

(Green) indication comes on. (g) Link fail (Yellow) steady indication goes off & starts flickering as soon as the

modem starts communicating with remote station modem and all the CPU’s display “00”.



29

22. lkekU; vuqj{k.k General maintenance

a) Power Supply should be periodically checked and ensured that the output voltage is well within the specified limit

b) Battery should be periodically maintained. c) The BPAC system must have a separate Earthing, which should be maintained

at regular interval and the Earth resistance must be kept below 2 ohms. d) The communication link db loss and SNR should be periodically checked. In

case of copper conductor, cable insulation resistance and loop resistance must also be periodically measured.

e) In case any one of the CPU is showing an error code and the system is working in 2/3 mode, the fault must be attended immediately as directed in the error code list as preventive maintenance action.

f) A Single CPU and Power supply failure detection/alarm is provided. g) If a faulty UFSBI system is not restored after “resetting”, we need to check

the following: (i) If there is any loosely fitted connector or improperly pressed PCB module. (ii) Connecting leads inserted in Terminal. (iii) The DC supply levels of the DC-DC converter output.

Environment: Spacious, Clean, Dry, well ventilated room preferably with a fan/exhaust fan.

Battery: 24 V DC / 120 AH Battery Charger:

Good Quality low ripple battery charger (Axle Counter type) as per IRS: S-86/2000 or IPS module as per RDSO/SPN/165/2004 Nominal Voltage – 24 V/10 A (-10% to +20%) Separate Power Supply to be provided for each of BPAC, SSDAC & Block Telephone as stated in RDSO/SPN/188/2004

Earthing: Good lightning protection system with proper connection with earth to be

provided. 23. lapkj ekxZ ¼vks,Qlh ;k ekbØksoso jsfM;ks ij½ Communication channel (on OFC or Microwave

radio)

(a) 4 wire Voice Channel on OFC (2400 bps, asynchronous) S/N ratio: At least 20 dB (b) Max. Tx Signal: -2 dBm to -5 dBm (c) Min. Rx. Level: -32 dBm to -35dBm (d) BER: Better than 10-5

23.1 lapkj ds fy;s dsfcy Communication cable

(a) Jelly filled Quad Cable as per specification: IRS: TC 30-05 (b) The cable insulation (must be better than10 M ohm /Km when tested with 500

V Megger) (c) Loop resistance (should be less than 55 ohm /Km) (d) Signal loss (should be less than 30 dB at 2.5 KHz) (e) The armour of the cable must be properly earthed



30

Channel Loss: 30 dB (max) line sections (i) The Block Panel provided, offers audio-visual indications for all vital

information. (ii) The interlocking circuits and input/output through Q-series relays provide

galvanic isolation, making the system suitable in both RE & Non- RE sections. (iii) The system is media independent i.e. it works on Copper cable, OFC or

microwave without hampering the fail-safety of the operation.

24. vkjMh,lvks @,l ih ,u@188@2004 ds vuqlkj ;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s /kqjk x.kd ds

lkFk CykWd ofdZax ds fy;s dk;Z lEiknu ls iwoZ dh tkap lwph Pre commissioning check list for block working with axle counter using UFSBI (As per RDSO /SPN/188/2004)

Station Name:

Section:

Single Line/ Double Line

Division/Zonal Railway:

Contact Details of Railways at site:

Contact Details of Railways at HQ/Division

Contract No./P.O. No.

Name and Address of manufacturer/supplier: (RDSO Approved vendor)

Serial number of the equipment: Software checksum: UFSBI system For Deltron make UFSBI - ‘ B7 0E ’ For Webfill make UFSBI - ‘ 1F 2C ’

UFSBI working on: OFC / Microwave / Quad Cable

Date of installation: Date of pre-commissioning inspection:

Note:

1. System should be installed and commissioned by authorized technical staff of manufacturer only.

2. Commissioning of Universal Fail Safe Block Interface (UFSBI) has to be done by OEM as per RDSO approved pre-commissioning checklist No. SIG 0611 Ver.0.

3. OEM shall certify that verification of system installation has been completed by OEM and all necessary arrangements meet the required standards of engineering for trouble free working of installed system. (Ref: This office letter no.: STS.E.AC.Dig.Genl dt 21.06.2011)



31

Sl. No

Description Specified Value / nos.

Measured Value / Nos.

(if any)

Ok / Not Ok

1. Environment Spacious, Clean, Dry, Well ventilated room (preferably with a fan/ exhaust fan.)

2. Battery 24 V / 120 AH

3. Battery Charger

i) Battery Charger having low ripples should be used or (Axle Counter type) as per IRS: S-86/2000 or IPS module as per RDSO/SPN/165/2004 preferred Nominal Voltage – 24 V/10A (-10% to +20%) at The Output voltage at following 2 conditions must be within 21.6V to 28.8V:

Charger ON & UFSBI ON Charger OFF (for 15 min) &

UFSBI ON Note: The output voltage must be measured at the terminals of the UFSBI system. (For details of terminals refer drg. No. RDSO/S/32018 Sh.No.5 of 12) (ii) Separate Power Supply provided for

A. BPAC

B. SSDAC

C. Block Telephone

(in accordance to Cl. 3.6.1, Cl. 3.6.2 & Cl. 3.6.3 of RDSO/SPN/188/2004).

_________ V _________ V

4. Earthing Value of Earth resistance of system should be less than 2



32

5. Lightning Arrestor

Provision of suitable lightning protection arrangement with proper connection should be there.

6. Communication Channel

4 wire Voice Channel on OFC (2400 bps , asynchronous)

S/N ratio: At least 20 dB Max. Tx Signal: -7 dBm to -5

dBm Min. Rx. Level: -12 dBm to -

14dBm BER: Better than 10-5

________ dB ________ dBm ________ dBm ________

7.0 Communication Media Type of Cable

Jelly filled Quad Cable as per specn: IRS: TC 30-05 No Signalling Cable is to be used in totality/parts. Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

Length of quad cable 7.1 Use of pair Proper pair of wires to be used for

connectivity. Annex-1 for Quad cable may be referred. Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

7.2 Duplication of Wires

No wires to be paralleled for reducing conductor resistance.

7.3 Insulation Resistance of Quad cable

Shall be greater than /equal to 10 M ohm when tested with 500 V megger.

7.4 Loop Resistance of designated pair

Not to exceed 56 ohm/Kms for Quad Cable at 200 C & * ohms/Kms for PIJF telecom cable. See Annexure - ii for correction factor.

7.5 Attenuation loss measured at 2.5 KHz

Shall not be greater than 30.0 dB for full length of the cable used.

7.6 Near End Cross Talk (NEXT)

Shall be better than 55 dB for Quad cable.

7.7 Far End Cross Talk (FEXT)

Shall be better than 55 dB for Quad cable.



33

Sl No.

Item Expected Measured/ Observed

Remarks (OK/Not OK)

7.8 Continuity of cable armour

Continuity shall be there & the armour of the cable must be properly earthed. Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

7.9 Separate Earth of Quad cable

Shall be less than One ohm

7.10 Cable allocation table Shall be filled up & attached 7.11 Unused Quad pair To be terminated on terminals

or to be cut in such a way that none of the conductors remains exposed. Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

7.12 Dressing of Quad pair To be properly dressed with insulated tape. Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

7.13 Spiral before termination.

No individual conductor to be made spiral Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii

8.0 External Terminals (Centre Link Open type )

All inputs from the Field, Block Instruments and the Relay room shall be terminated with proper identification in a separate location to connect to the UFSBI terminals Wiring practices should be adopted in accordance to TAN 6001 dt 04.10.2011 See annexure -iii



34

*PIJF telecom cable is available with three types of Conductor dia-

Sl. No

Condr Dia used in PIJF cable

Resce at 200 C Loop Resce /KM

1 0.50 mm 86 ohm +/- 6 172 ohm / Kms 2 0.63 mm 58 ohm +/- 4 116 ohm / Kms 3 0.90 mm 28 ohm +/- 2 56 ohm / Kms

Attenuation Loss: The output/Input impedance of signal generator/dB meter shall be 600 ohm.

Near End Crosstalk: Test tone of 150 KHz to be fed in the adjacent pair of the same Quad & NEXT to be measured at the same end on the other pair of the same Quad.

Far End Cross talk: Test tone of 150 KHz to be fed in the adjacent pair of the same Quad &

FEXT to be measured at the far end on the other pair of the same Quad.

Details of the Block Panel, Relay Interlocking Circuit & UFSBI Installed:

9 . UFSBI

Card details of UFSBI:

[It should be selected in accordance to User’s manual of RDSO approved system]

9.1 UFSBI system (M/s Deltron make)

SN Part list description Sl. No.:

i. Input card of UFSBI Unit

ii Output card of UFSBI Unit

iii Communication cum control card of UFSBI

iv CPU card of UFSBI Unit

v Mother Board card of UFSBI Unit

vi Reset Box for UFSBI Unit

vii DC-DC Converter for UFSBI Unit

viii Serial No of Modem



35

9.2 UFSBI system (M/s Webfill make)

SN Description Quantity Sl. No. 1 Power Supply Card 2 Nos.

UPS-…-……. UPS-…-…….

2 Communication Driver Card

1 No UCD-…-…….

3 System Card 3 Nos. USY-…-…….

USY-…-…….

USY-…-……. 4 Relay Input Card 2 Nos. UIP-…-…….

UIP-…-…….

5 Output Feedback Card 2 Nos. UFB-…-……. UFB-…-…….

6 Relay Output Card 2 Nos. UOP-…-……. UOP-…-…….

7 Mother Board 1 No UBP-…-……. 8 Alarm Extender

Module 1 No UAM-…-…….

9 Display Module 1 No UDM-.....-........

10 UFSBI Alarm Panel 1 No UAP-…-…….

11 Sub Rack 1 No USR-….-..........

12 BLOCK Panel 1 No. BPDL-…-…….

13 UFSBI Rack 1 No. BPACDL

10. Details of the Relay Interlocking Circuit (all 24V relays):

SN Description of Relays Nos. of relays Observation

i. No. of QN1 Relays

ii No. of QNA1 Relays

iii No. of QL1 Relays

iv No. of Electronic Timer Relays

v Initial count of the Reset Counter

vi Any other special relay (if any)



36

11. Details of Block Panel

i Block Panel (make)

Sr. Nos. of Block Panel

ii Functionality of Block Panel Should be satisfactory

iii Locking arrangement Provision should be there

12. Details of Block Telephone

i Block Telephone (manufactured by )

Whether RDSO approved/or not

ii Functionality of Block Telephone

Should be satisfactory

iii Transmission loss

A Transmission level

(@ 0 dbm 1KHz)

B Receive level - 30 dbm

13. Address Code Configuration (Jumper setting)

[It should be selected in accordance to User’s manual of RDSO approved system]

TX RX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14. The Functionality of block working shall be checked as per :

a- RDSO acceptance test format SIF No. 0662 (for single line) b- RDSO acceptance test format SIF No. 0644 (for double line)



37

ANNEXURE-I 25. vuqca/k&I % dk;Z lEiknu ds le; le; la;kstu fd;s tkus ds fy;s ;k ok;fjax fd;s tkus ds fy;s

lko/kkfu;ka tks dh tkuh gSA Annexure I- Precautions to be taken care during wiring / connections are to be done at the time of commissioning

Position of One Quad in Quad cable:

White (A) X

Red (C) X X (D) Grey

X (B)

Quad colour 1st pair = White & Quad colour i.e A & B Wires 2nd pair= Red & Grey colour i.e C & D Wires of designated colour of Quad. Each Quad is binded by the respective Quad colour binder

Table-1

Colour scheme of PE insulated Quads

Quad Colour

Quad No

Pair No.

A - Wire B -Wire Pair No.

C- Wire D - Wire

Orange 1 1A White Orange 1B Red Grey Blue 2 2A White Blue 2B Red Grey

Brown 3 3A White Brown 3B Red Grey Green 4 4A White Green 4B Red Grey Yellow 5 5A White Yellow 5B Red Grey Black 6 6A White Black 6B Red Grey

Precautions to be taken for using QUAD Cable: Designated pair of wire of the same Quad (mentioned in Table -1) should be

used. Do not use one wire from one Quad and another wire from some other Quad. If any wire of a pair of the Quad is broken/Non functional, then use fresh pair of

wire.



38

ANNEXURE-II

vuqca/k& II % rkieku lq/kkj xq.kd Annexure II – Temperature correction factor

Temp. Deg C 1.

Corre. factor 2.

Temp. deg C 1.

Corre. Factor 2.

Temp deg C 1.

Corre. factor 2.

Temp. deg C 1.

Corre. factor 2.

Temp. deg C 1.

Corre. Factor 2

5. 1.0638 17 1.0122 29 0.9653 41 0.9225 53 0.88345.5 1.0618 17.5 1.0101 29.5 0.9634 41.5 0.9208 53.5 0.88186. 1.0593 18 1.0081 30 0.9615 42 0.9191 54 0.88036.5 1.0571 18.5 1.0060 30.5 0.9597 42.5 0.9174 54.5 0.87877. 1.0549 19. 1.0040 31. 0.9579 43. 0.9158 55. 0.87727.5 1.0526 19.5 1.0020 31.5 0.9560 43.5 0.9141 55.5 0.8757 8. 1.0504 20. 1.0000 32. 0.9542 44.. 0.9124 56. 0.87418.5 1.0482 20.5 0.9980 32.5 0.9524 44.5 0.9107 56.5 0.87269. 1.0460 21. 0.9960 33. 0.9506 45. 0.9091 57. 0.87119.5 1.0438 21.5 0.9940 33.5 0.9488 45.5 0.9074 57.5 0.869610. 1.0417 22. 0.9920 34. 0.9470 46. 0.9058 58. 0.868110.5 1.0395 22.5 0.9900 34.5 0.9452 46.5 0.9048 58.5 0.866711. 1.0373 23. 0.9881 35. 0.9434 47. 0.9025 59. 0.865111.5 1.0352 23.5 0.9862 35.5 0.9416 47.5 0.9009 59.5 0.863612. 1.0331 24. 0.9843 36. 0.9398 48. 0.8993 60. 0.862112.5 1.0309 24.5 0.9823 36.5 0.9380 48.5 0.8977 60.5 0.860613. 1.0288 25. 0.9804 37. 0.9363 49. 0.8961 61. 0.859113.5 1.0267 25.5 0.9785 37.5 0.9346 49.5 0.8945 61.5 0.857614. 1.0246 26. 0.9766 38. 0.9328 50. 0.8929 62. 0.856214.5 1.0223 26.5 0.9747 38.5 0.9311 50.5 0.8913 62.5 0.854715. 1.0204 27. 0.9728 39. 0.9294 51. 0.8897 63. 0.853215.5 1.0183 27.5 0.9709 39.5 0.9276 51.5 0.8881 63.5 0.851816. 1.0163 28. 0.9690 40. 0.9259 52. 0.8863 64. 0.850316.5 1.0142 28.5 0.9671 40.5 0.9242 52.5 0.8850 64.5 0.8489



39

Annexure - III vuqca/k& III % rduhdh le>kus okyk laf{kIr ys[k Annexure III – Technical advisory note

Technical Advisory Note

Subject Digital Axle Counter – Wiring Discipline Document Number STS/E/TAN/6001 Version 1.0

Dated 04/10/2011 Pages 2 It has come to notice that usage, termination and wiring of quad cable is far from satisfactory for trouble-free working of electronic equipments like digital axle counters/UFSBI. Basic issue pertains to electromagnetic interference from parallel circuits in the cable and location. Following guidelines are recommended to enhance performance of DAC systems. 1. Parallel circuits:

a. Requirement is that parallel circuits shall be as far spaced, spatially, as possible. Long parallel circuits shall be avoided in the same quad. So, one long and one short circuit can be accommodated in same quad but not both long circuits.

b. DAC circuits in BPAC of up and down lines in double line sections shall be in separate quads and kept one/two quad distance away from each other to avoid mutual interference in long parallel circuits.

c. DAC circuits in location shall not be bunched along with parallel relay/power circuits. Relay circuits are known to generate switching transients that can couple enough energy in parallel circuits nearby and interfere with low power DAC data circuits.

d. Any other parallel wiring (relay circuits/power circuits/earthing wires etc) shall cross DAC circuits at perpendicular and any parallel portion shall be kept at minimum 150mm (lateral distance) away from the wiring for DAC circuits.

e. Relay circuits shall preferably be not taken in same cable as DAC circuits. In unavoidable circumstances relay circuits shall be in furthest quad (spatially) from the one containing DAC circuits.



40

2. Twisting of cable pair: a. Twisted pairs are required to avoid mutual interference between low level

data signals. Even short lengths of non- twisting (few inches) can couple enough noise to interfere with low voltage DAC communication signals.

b. Quad cable twisting shall be ensured during termination so that minimum one twist per inch is maintained till the last inch into terminations.

c. Any wiring from quad cable terminations to equipment shall be done using twisted singles of indoor signalling cable (1 mm square) or any other approved indoor twisted pair cable.

d. Signalling cable or any other untwisted cable pair shall never be used in DAC communication circuits to avoid intermittent type of failure.

3. Wiring & Terminations:

a. Preferably, quad cable shall be terminated in cage clamp type terminals

that provide solid 360 degree surface connection and sufficient pressure on the wire to make a good electrical contact.

b. Cables shall be terminated at the bottom portion of location keeping equipment and their wiring at higher level inside location. This will help in keeping wiring of different types segregated from each other. All earth wires and surge protection devices also shall be kept at the lower levels for the same reasons.

c. Wiring and cabling shall not be bent abruptly and shall be given sufficient bending radius to ensure that conductors inside the cabling/wiring are not damaged due to bending.

d. Wiring shall be properly supported by channels troughing, cable clamps and other means to ensure that connections are not under pressure due to wire hang.

e. Wiring and cabling shall not be supported at any sharp edged object to ensure that conductors are not damaged during their installation/maintenance.



41

4. Continuity and Earthing of cable armor & screen at intermediate terminations/Joints: a. Screening of quad cable is effective only when sufficient induced current can

flow in the screen thereby cancelling/reducing the induction from 25KV AC for the cable conductors. For adequate induced current to flow in screen, it is necessary that good earth connections are provided for cable screen & armor.

b. Quad cable screen & armor shall be made electrically continuous at the intermediate terminations/ joints by soldering and connecting both ends of cable screens & amours at the locations.

c. Connections to screen shall preferably be made by thin metallic clamps soldered to screens to ensure good surface connection for electrical continuity.

d. Combined Earth for armor and screen at intermediate locations shall have earth values as low as possible but shall be never more than 5 ohms.

e. Earth connections shall be kept as short and as straight as possible because any loop or turns can create inductive elements that impede quick discharge of transients and surges to ground.

Signature of Firm’s Rep. Signature of Railway Rep. With Name, Designation &Date With Name, Designation &Date



42

Annexure - IV

Block Section and Cable plan (Double Line)



43

Block Panel Double Line

CAMTECH/PROJ/11-12/HB-BPAC-UFSBI 44

Block Panel Double Line



45

Block Section and Cable plan (Single Line)



46

Block Panel Single Line



47

Block Panel Single Line

Reference:

1. IRISET notes. 2. Users Manual of Firm M/s Delltron Equipment and System Pvt., Ltd. Kolkata

Documents

;w-,Q-,l-ch-vkbZ- dk iz;ksx djrs gq;s Cykd izwfoax ckbZ ,Dly dkm.Vj … · 2019. 10. 17. · CONTENTS izkDdFku Foreword III Hkwfedk Preface V fo"k; lwph Contents VII Lkq/kkj iphZ