The DTS 4130.timeserver sets new stan-dards as a time reference for all NTP clientsin medium and large networks (LAN Ether-net/IP/UDP). It is highly precise and with itsintelligent concept for redundant operation, itoffers a high degree of reliability and secu-rity against failure.

The DTS 4130.timeserver can either be syn-chronized with a time signal receiver (DCF4500 or GPS 4500), or with another NTPor SNTP time server in the LAN or Internet.The DTS 4130.timeserver can synchronizeall slave clocks with NTP movement, either

with direct NTP input or by means of NCI(Network Clock Interface). Other devices,e.g. master clocks, can be controlled viaDCF current loop or optical outputs.

The high degree of system security and relia-bility is achieved by the master-slave opera-tion of two DTS 4130.timeservers connectedvia fiber-optic (redundant operation). In thecase of disturbance, one device will auto-matically switch over to the other. Alarmsare signaled by alarm relay, SNMP mes-sages, or e-mails.

The time server in the new NTP-based Distributed Time System by MOBATime

DTS 4130.timeserver

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DTS 4130.timeserver - the innovative, precise time reference for networked, multifunctional systems

Time precision Maximum accuracy is achieved by syn-chronizing the DTS 4130.timeserver viaa connected GPS receiver. The internaltime is updated to the time reference (e.g.GPS) in one step or in small adjustablesteps to avoid any time leaps (e.g. after alonger loss of the time source), thanks tothe intelligent time management. Toachieve utmost accuracy, the quartz driftand aging is continuously compensated.

Top performance - even for largenetworksThe high performance DTS 4130.time-server can answer more than 100 NTPand SNTP requests per second. It caneven work as an NTP time reference for asubnetwork, if it is synchronized by an-other time server.

Safe, convenient operationAfter the first configuration or IP configura-tion, by means of a Terminal software viathe serial interface, operation over LANvia Telnet, SSH or SNMP protocols ispossible. SSH and SNMP enable an se-cured connection. Special software is re-quired for operation by SNMP protocol.

Effective fault indicationAlarms are conveyed by alarm relay, bye-mail, or via SNMP messages.

The front view shows the LEDs for mains sup-ply, alarm, synchronization, and networkdata traffic, as well as the RJ45 LAN plug,10/100 Mbit and the PC connecting plug(RS232 sub-D 9-pole male).

DTS 4130.timeserver back view with mainsplug, 2 DC power supply inputs, DCF input,DCF output, DC power supply output, alarmrelay contact and DTS fiber-optic connection.

DTS 4130.timeserver - the time source for LAN-based clock and time distribution systems

The DTS 4130.timeserver can be de-scribed as a versatile source in several re-spects.

On the one hand, it relays the externaltime signals with maximum precision andreliability directly to all NTP multicast de-vices, such as slave clocks with

SEN 00 clock movement, digital clocks,and digital information displays with NTPsynchronisation. On the other hand, itcan also synchronize the NCI (NetworkClock Interface), which for its part cancontrol master clocks and slave clocks with MOBALine and DCF 77input.

Even PCs/workstations, photocopiers,printers, fax equipment, time recordingterminals, and access control systems,central fire alarm systems, image andsound recording equipment, and manyother "clients in the network" can be di-rectly synchronized by means of the NTPprotocol.

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DTS 4130.timeserver - greatest priority for security and reliability

Redundant operation Two DTS 4130.timeservers are syn-chronized via a fiber-optic connectionfor redundant operation, using twoGBIC modules for the fiber-optic link. The two time servers automaticallyregulate their role distribution as mas-ter or slave via this connection afterstart-up. The slave is synchronized bythe master. In the case of GPS

failure, automatic switchover frommaster to slave will occur wherebylimits for the switchover can be con-figured.

Redundant power The DTS 4130.timeserver has severalmonitored inputs for complete redun-dant power supply.

The non-active power supply input isalso monitored.

Possible power variants: • 24 VCD, non-redundant • 230 VAC, non-redundant• 24 VDC + 24 VDC, redundant • 230 VAC + 24 VDC, redundant

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DTS Distributed Time System von MOBATime -Time system with persuasive future prospects

The DTS 4130.timeserver is the first,immediately applicable device of the innovative network based time systemDTS Distributed Time System that iscurrently being developed byMOBATime engineers. The DTS con-cept is specially designed for mediumand large networks and offers arange of persuasive features:

• Flexibility through choice of func-tional components

• The system can be decentralized:“Function where it is required”

• Security and reliability is providedby redundancy in operation and in

power supply, as well as by alter-native alarm reports (alarm relay, e-mail or SNMP)

• Maximum precision of the DTS4130.time-server time reference

• Simple and convenient operation,configuration, programming, ad-ministration and monitoring viaLAN

• Network functions for highly pre-cise time distribution to all NTPclients in the LAN/WAN network,as well as to sub-systems, such asslave clock lines, or switching andcontrol systems of buildings and toIT Security services.

The entire range of functions of thecomplete DTS time distribution systemand all the special DTS system com-ponents required are shown in the di-agram below.

DTS system components: • DTS 4130.timeserver • DTS master clock with various

slave clock lines • DTS manager for monitoring

and software management • Management software for operat-

ing the entire system via SNMP

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DTS 4130.timeserver - Technical and performance details

Technical Data Time signal outputs

DTS Link (Redundancy

Network services

Network Interface

IP configuration Operation

Display elements (LEDs)

Local time calculation

Accuracy

Time-keeping (internal)

External time source

Alarm relayPower supply

DimensionsWeight Power reserve Ambient temperature

NTP / SNTP, NTP multicast DCF-time signal output (current Loop passive) Optical DCF time signal output (ST Bayonet, BFOC/2.5) Max. length of the fiberglass cable, e.g. multimode fiber Ø 50 µm:

multimode fiber Ø 62.5 µm:NTP clientNTP server, max. no. of NTP and SNTP client requests: SNMPE-mail for alarm messages (2 addresses possible) Time, date, FTP (for update) 10BaseT / 100BaseTX (IEEE 802.3) Data transmission rate: auto-negotiation / manual Connection: RJ45 (only shielded cable permitted) DHCP, static IP Software terminal via RS 232 (front side) Via LAN: Telnet, SSH, SNMP (special software necessary) Power supply, synchronization status, LAN data traffic, alarm, DCF input Automatic, pre-programmed daylight saving time change. Up to 80 pre-defined time zone entries and 20 user-definable entries Each output can be individually allocated to a time zone(UTC or local time) GPS (DCF input) to NTP server: GPS (DCF input) to DCF output: NTP to internal time: Redundant operation: master to slave Synchronized with GPS: Holdover, after mind. 12 hours synchronization ofGPS time source, measured over 24 hours, at 20°C +/- 5°C:

at constant temperature:

After restart without synchronization (for 24 hours), at 20°C +/- 5°C:

External NTP / SNTP server (4 NTP sources possible), and / or DCF 77- time signal receiver (current Loop, e.g. DCF 4500), or GPS time signal receiver (current Loop, e.g. GPS 4500), or manual time setting (only for test purposes) Potential free, opening contact for signalizing disturbances AC input: 85 .. 265 VAC / 50 - 60 Hz / max. 15 VA 2 x DC input: 24 VDC + 20 % / - 10 % / max. 10 W DC output: nominal 28 VDC, max. 400 mA 19" rack, 1 rack unit, W x H x D mm

0 to 60°C, 10 - 90 % relative humidity, non-condensing

max. 550 m max. 275 m

> 100 requests/sec

typical < +/- 100 µs typical < +/- 10 µs typical < +/- 100 µstypical < +/- 1 µs +/- 10 µs to UTC

< +/- 0.01 sec./day or < 0.1 ppm < +/- 1 ms/ day or < 0.01 ppm < +/- 0.25 sec./day or < 2.5 ppm

open ➙ alarm

483 x 44 x 125 ca. 1.2 kg none

produced by MOSER-BAER AG CH-3454 Sumiswald/Switzerland www.mobatime.com