Multi-purpose network master clock and time server
Utmost accuracy is achieved with GPS synchronization. An intelligent time management ensures lasting high accuracy by continuously compensating quartz 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 for large network
The high performance DTS 4132.timeserver can reply more than 1500 NTP and SNTP requests per second, which allows for the synchronization of several thousand clients.
It can also work as an NTP time reference for a network, being synchronized from a superior NTP-Server in a physically separated network (client and server at the same time).
The DTS 4132 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), 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.
Alarms are reported via SNMP messages, e-mail or by alarm relay.
Additionally, the display can be used to check the alarm state by pressing the red push button.
- 2 LAN connectors RJ 45, 10/100 MBit Ethernet
- USB connector for software update, file upload to the time server (e.g. telegram files, time zone table...) and maintenance
- PC terminal connector, RS 232 Sub D 9p male
LEDs: Power, alarm, synchronization and network transmission control.
Display: Time, date, status, alarm, IP...
- Power: Mains power connector, 2xDC power supply input, DC output (e.g. for GPS)
- Alarm: alarm relay contact, alarm input
- Synch. inputs: DCF current loop
- Synch. outputs: DCF current loop, DTS link (GBIC-module)
- Serial: 2x RS 232/485, for script file programmable serial message
- Clock lines: 2x MOBALine or impulse line
- Pulses: 1x DCF or pulse/frequency output (RS 422 & opto coupler)
DTS 4132.timeserver -Network time server application
The DTS 4132.timeserver is a versatile time reference in several respects.
It relays the external time signals with high 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.
It can also synchronize slave clocks with two MOBALine or impulse outputs. Slave master clocks can be synchronized via NTP or DCF current loop.
Furthermore, PCs/workstations, photocopiers, printers, fax equipment, time recording terminals, access control systems, central fire alarm systems, image and sound recording equipment and many other kinds of clients in the network can be directly synchronized by means of the network time protocol (NTP).
DTS 4132.timeserver - Redundant operation
To avoid time deviation between two DTS 4132.timeservers, they can be linked via a fiber-optic connection by using two GBIC modules.
The two timeservers automatically negotiate their state as master or slave. The slave is always synchronized by the master. In case of a failure of the synchronization source (GPS or NTP), automatic swap between master and slave state will occur. The parameters for the swap can be configured.The “master” DTS time server always has the better NTP stratum level than the slave.
LAN 1 and LAN 2 are always synchronized by the same time server.
Possible synchronization sources
- 2 GPS receivers
- 2 external NTP servers
The DTS 4132.timeserver has two monitored inputs for entirely redundant power supply. The stand-by power supply input is also monitored.
Possible power variants:
- 24 VDC, non-redundant
- 24 VDC + 24 VDC, redundant
- 230 VAC + 24 VDC, redundant
Redundant MOBALine, serial telegram, DCF and/or pulse/frequency outputs can be achieved by the external change over unit (ECO).
DTS 4138.timeserver - Master clock application
The DTS 4132.timeserver features two MOBALine outputs to synchronize self-setting analog and digital slave clocks, switch relays and various time code interfaces.
Alternatively, conventional impulse clocks can be synchronized.
The DTS 4132 also features two programmable RS 232/422/485 serial outputs (message definable by script file), for synchronization of any kind of technical equipment like e.g. computer server, process controller, fire alarm system ...
For utmost precision of the synchronization, one high accurate pulse output is provided. It can either be used as DCF output (RS 422 and opto coupler) or for periodical pulses or frequencies.
Typical applications are industries, railways, metros, airports, hospitals, schools etc., where high reliability, high precision, no time leaps andpermanent availability combined with slave clock lines are requested.