Vonaq Ltd

Network Installation, Maintenance and Monitoring Tools

Cable Theft is a major problem worldwide

The Cable Theft Problem

In the UK alone, the cost of Copper Cable theft was

€924 Million in 2013

Tightening the scrap metal laws has reduced the

problem but it is only part of the solution

Due to a request from a major European operator, Cable

Guardian has been developed to address this problem

Cable, Street Cabinet and Cable Duct Protection

Cable Guardian 50

Cable Guardian 50 is a rack based system for

Cable, Street Cabinet and Duct Cover monitoring

If a cable theft or door alarm occurs, an SMS Text and / or Email message is

sent to the responsible authority identifying the change in the cable length

(and optionally an address) to help with location of the incident

The incident can then be dealt with efficiently ... and the alarm cleared by

SMS or email reply afterwards

With Cable Guardian you are able to detect and

locate cable theft incidents, unexpected opening

of Street Cabinets and Duct covers.

Cable Guardian 50 Block Diagram

Cable Guardian In Operation

This screenshot shows a number of

cables being monitored.

Each monitor cable is checked every 60

seconds.

Each time a cable is tested, the details

are recorded into a database and

compared with the previous results

If there is a significant change an

ALARM is triggered.

This alarm may be sent by SMS text

message, email or other ALERT types

of the customers choosing.

As can be seen, ALARMS may be cleared

by SMS response messages, email

response messages

Cable, Street Cabinet and Cable Duct Protection – The Process

Two types of monitor Cable are supported:

Cable Bundle Monitor

Switch Contact Monitor

A single twisted pair is used for the monitor cable for

both types

Cable Bundle Monitor – Add Cable

Cable ID

Admin Group

Admin Group: consists of: 1 key holder

person, several other informed persons to be

alerted in the event of an alarm

Each cable bundle to be monitored must be added to

the Cable Guardian database with the following

information:

Optional information can be added:

address or post code of cable end point

Add Cable

Admin Group

Cable Bundle Monitor – Start Monitoring

Each new cable is checked for it's length

and this value stored in the database

A running average is kept to accommodate for cable

degradation over time

Each Cable is monitored for a sudden change in

length – triggering an ALARM

Cable Bundle Monitor – ALARM

An alarm message is sent to the key holder and

all other informed persons within that Admin group

The alarm is sent by SMS text and / or email

Content: Cable ID, Old cable length, new cable

length, optional address of cable end point

Key Holder replies with acknowledgement text or

Email. This keeps informed persons aware the

incident is being dealt with

To Clear the alarm, the key holder must send a

CLEAR text or email. Only the key holder may

ACKNOWLEDGE or CLEAR an alarm

Cable Bundle Monitor – Maintenance

Cable Disable –

This may be done by sending the DISABLE text

message along with the cable ID

Cable Monitor Status -

For maintenance purposes it is possible to check if a

cable monitor is active or not, a STATUS text may be

sent to the system.

The system will send a text reply indicating the

STATUS of that cable

Cable Enable –

This may be done by sending the ENABLE text

message along with the cable ID

Street Cabinet and Duct Covers

simple open / closed switch contacts may be used to

monitor the opening of Cabinet Doors or the lifting of

duct covers

Up to 255 contacts may be connected in series on a

single monitored cable

Adding Switch Contacts to Cable Guardian

Engineer adds the switch contact to the most remote cabinet in the monitored

cable and leaves the contact in the open state

Engineer sends text message to Cable Guardian

system containing:

SWITCH ADD: CABINET ID: CABLE ID : CABINET address and postcode

Engineer receives CONFIRM SWITCH ADD text message. This will also

indicate the measured distance to the cabinet.

Engineer closes the cabinet and visits the next cabinet in the line to be

monitored. The Process is repeated for each Duct Cover or Cabinet in the line

Switch Contact ALARM

The monitor cable will be checked for sudden changes in length in the same

way as a cable bundle is monitored

If there is a sudden change in length, the new length is compared to the

stored database of distances to each contact switch for that monitor cable

An alarm message is sent to the key holder and all other informed persons

within that Admin group. Sent by Text Message and / or email

Content: ALARM: CABINET ID: CABLE ID : CABINET address and postcode

All other aspects of managing the ALARM as the same as for the Cable

Bundle process

CABLE GUARDIAN 50

A total solution for monitoring

Cables, Street Cabinet Doors and

Duct Covers.