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PCS-9785 Satellite-Synchronized Clock
The PCS-9785 satellite-synchronized clock is usually used in Substation Automation System (SAS) to satisfy the time unifying requirements of protection relay, disturbance fault recorder and other IEDs.
A set of two PCS-9785 can form the "dual device dual network" redundancy strategy to provide a higher reliable and accuracy clock synchronization system.
- Features
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Remote supervision
This device supports local SCADA and remote control centre communication in using of protocols such as IEC 61850 to realize the device running status supervision.
Time service
This device supports GPS (Global Positioning System) and BDS (BeiDou Navigation Satellite System). In addition, it supports antenna transmission time delay compensation.
Signal reception
This device provides 2 reception channels for IRIG-B signal via its optical port or RS-485/422 port. In addition, it supports link-based reception time delay compensation.
High accuracy
The device accuracy is high in long term. The punctual error is less than 1μs per hour.
IEEE 1588 protocol
This device supports the IEEE 1588 protocol (BC mode and OC mode) for clock synchronization.
SNTP/NTP protocol
This device supports the SNTP/NTP protocol and can work as a network time server.
Recording
Automatically, this device stores all the self-diagnostic record, binary status change and service log in its internal storage.
Output clock synchronization signal
The kinds of output clock synchronization signal is rich, including PPS (Pulse Per Second), PPM (Pulse Per Minute), PPH (Pulse Per Hour), IRIG-B signal, timing message (serial), SNTP/NTP timing message (network), IEEE 1588 signal, etc.
Output interface
Various kinds of output interfaces are provided, including RS-484, RS-232, TTL, dry contact, AC modulation, optic fiber, RJ45, etc.
Dual power supplies redundancy
Dual power supply module is an option. The extra power supply module will be placed at the other side of the device rack and works independently.
Double devices redundancy strategy
Two PCS-9785 can form a "dual source, dual network" clock synchronization system with a interconnection in using of IRIG-B signal.
Output interface extension
The output interface extension is very flexible. In addition, the enormous interfaces are isolated to each other.
Human machine interface
The friendly HMI provides large scale LCD and navigation keypad for the display of real time, satellite tracking status, IRIG-B inputting status, current clock source, etc.