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      PCS-9785 Satellite-Synchronized Clock
    1. 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.

    2. Features
      • 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.

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