DTS 4128.timeserver

DTS 4128.timeserver - the innovative, precise time reference for networked, multifunctional systems

Time precision

Best accuracy can be achieved by synchronizing the DTS 4128.timeserver via a connected GPS receiver, and thanks to an intelligent time management. The internal time is adjusted to the time reference (e.g. GPS) in one step or slowly shifted (in adjustable micro steps) to avoid any time leaps (e.g. after a longer loss of the time source). To achieve utmost accuracy, the quartz drift and aging is continuously compensated.

Top performance - even for medium size networks

The high performance DTS 4128.timeserver can reply more than 100 NTP and SNTP requests per second. It can also work as an NTP time reference for a sub-network, being synchronized by a superior NTP-server (client and server at the same time).

Effective fault indication

Alarms are conveyed by alarm relay, by e-mail or via SNMP messages.

Safe, convenient operation

After the fi rst confi guration or IP configuration, by means of a terminal software via the serial interface, operation over LAN via Telnet, SSH or SNMP protocols is possible. SSH and SNMP (MD5 authentication and DES for encryption) enable a secured connection. Special software is required for operation by SNMP protocol (e.g.

Front view

 DTS 4128.timeserver - Front View

The front view shows the LEDs for power supply, alarm, synchronization, and network data traffi c, as well as the LAN plug, and the PC connecting plug (RS232 sub-D 9-pole male).


Rear view

DTS 4128.timeserver - Rear view

DTS 4128.timeserver back view: DC power supply input, DCF input, DCF output, DC power supply output, alarm relay contact and DTS fiber-optic connection.


DTS 4128.timeserver - greatest priority for accuracy and reliability

Redundant operation

To avoid time deviation between two DTS 4128.timeservers, they can be linked via a fiber-optic connection by using two miniGBIC modules. The two time servers automatically negotiate their state as master or slave. The slave is always synchronized by the master. In case of GPS failure, an automatic swap between master and slave state will occur. The parameters for the swap can be confi gured. The “master” DTS timeserver always has the better NTP stratum level than the slave.

DTS 4128.timeserver - Redundant operation


DTS 4128.timeserver - the time source for LAN-based clock and time distribution systems

The DTS 4128.timeserver is a versatile time reference in several respects. On one hand, it relays the external time signals with maximum precision and reliability directly to all NTP unicast (IP based) or multicast devices, such as slave clocks with NTP movement (e.g. NBU 190), digital clocks, and digital information displays with NTP synchronization. On the other hand, it can also synchronize the NMI (Network MOBALine Interface), which for its part can control master clocks and slave clocks with MOBALine and DCF input. Even PCs/workstations, photocopiers, printers, fax equipment, time recording terminals, access control systems, central fi re alarm systems, image and sound recording equipment, and many other “clients in the network” can be directly synchronized by means of the NTP protocol.


DTS 4128.timeserver - time source for LAN-based clock and time distribution systems


DTS Distributed Time System

The DTS concept is specially designed for medium and large networks and offers a range of persuasive features:

  • Flexibility through choice of functional components
  • The system can be decentralized
  • Security and reliability is provided by redundancy, as well as by alternative alarm reports (alarm relay, e-mail or SNMP)
  • Maximum precision of the DTS 4128.timeserver as a time reference
  • Simple and convenient operation, configuration, programming, administration and monitoring via LAN using MOBA-NMS software
  • Network functions for highly precise time distribution to all NTP clients in the LAN/WAN network, as well as to sub-systems, such as slave clocks, or switching and control systems of buildings and to IT security services