DTS 4160.grandmaster


Time precision

Utmost accuracy is achieved with GPS synchronization. An intelligent time management ensures lasting high accuracy by continuously compensating oscillator drift and aging.

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).

Top performance - even for large network

The high performance DTS 4160.grandmaster can reply to more than 10'000 NTP and SNTP requests per second, which  allows for the synchronization of several thousand clients.

PTP grandmaster

PTP according to IEEE 1588-2008 for the synchronization of highly accurate clients. Usable for telecom (e.g. LTE), energy  (e.g. smart grid), automation, ...

NTP authentication

The DTS 4160 supports NTP authentication for increased security, which allows the clients to verify the source of the received NTP packets.

Safe and convenient operation

Operation over LAN via MOBA-NMS (SNMP), SSH or SNMP protocols is possible. SSH and SNMP (MD5 authentication and DES for encryption) enable a secured connection. Additional connection over RS232 is possible.

Alarm indication

Alarms are reported via SNMP messages, e-mail or by alarm relay. Additionally, the alarm is indicated on the display and on the Alarm LED.


Front view

DTS 4160.grandmaster Front view

  • Serial Terminal for operation (RS232)
  • USB connectors for software update, file upload and maintenance
  • Status LEDs for power, alarm and synchronization
  • Display to show time, date, status, alarm, IP adress..


Rear view

DTS 4148.grandmaster Rear view

  • Power:1 x mains power connector, 2x DC power supply input
  • alarm relay contact
  • Synch. outputs:
    - 1 x E1, DCF, IRIG-B, pulse output
    - 2 x serial RS 232 / RS 422 / RS 485 interface
  • LAN connectors
    - 3x RJ45 100 / 1000 MBit
    - 1x SFP
  • GPS antenna connector (N female)


DTS 4160.grandmaster - Application example

DTS 4160.grandmaster - Application example



DTS 4160.grandmaster - Redundant operation

Redundant time

To avoid time deviation between two DTS 4160.grandmasters, they can be linked via a fiber-optic connection by using two GBIC modules. Both timecenters use a GPS source as primary time reference.

The two grandmasters automatically negotiate their state as master or slave. The slave is synchronized by the master in  case of a failure of the synchronization source (GPS). Swap between master and slave state will occur automatic.


DTS4160.timeserver - Redundant operation


Redundant outputs

When synchronizing over the link, the “master” DTS time server has the better NTP stratum level than the slave.

The slave PTP Grandmaster is in passive mode.

Frequency and time code outputs are generated on both devices all the time.

Redundant serial telegrams, DCF, 1PPS and IRIG-B can be achieved by the external change over unit (ECO).


Redundant power

The DTS 4160.grandmaster has three monitored inputs for entirely redundant power supply. The standby power supply  input is also monitored.

Possible power variants:

  • 24 VDC, non-redundant
  • 24 VDC + 24 VDC, redundant
  • 230 VAC + 24 VDC, redundant
  • 230 VAC, non-redundant