GPS Master Clock System

GPS Master Clock System

GPS Master Clock System – MCS-GPSMC-1010 is a 3U Card rack type, 19” Rack mountable Redundant GPS Time Server which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using signal obtained from different external sources such as globally available satellite systems GPS, GLONASS and Galileo, NTP and IRIG. It distributing the same time signal through several types of interfaces. It provides redundancy for Power and GPS receiver to increase the reliability and offers protection against the time synchronization failure. The system is field-upgradeable and an extremely flexible system, designed to handle time synchronization requirements today and in the future. It provides nanosecond accuracy when external time references are not available. It has the storage facility to store the system log file. It delivers NTP, SNTP, IRIG-B, PFC-Pulse, DCF77, BCD parallel data, Ethernet Fiber Optic & RS485/RS232 outputs. System enables configuration and monitoring through Web-based application. It supports wide range of power supply either 90V-260V AC/DC or 18-36VDC or 36V-72VDC. Power supply model can be mixed and matched as required by the user, depending upon power supply options available at the installation site.

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Features

  • GPS Satellite Time reference for the System
  • Redundant GPS and Master with Comparator
  • Provides optional TCXO/OCXO stability
  • Cable delay compensation available
  • Field configurable pulse outputs
  • 10/100/1000Mbps PTP, NTP & SNTP Ethernet time outputs
  • Provides IRIG-B AM and TTL time signals
  • MODBUS output over RS485/RS232 and BCD outputs
  • Fiber Optic Pulse and Ethernet Outputs
  • Adjustable Time Zone
  • Events storage facility
  • 3U Rack Mountable with removable output cards
  • Isolated and protected Interfaces
  • Have more number of output to meet Power plant requirements
  • Redundant Power supply can be added
  • Large size time Displays, Signal conditioners & Boosters provided as per requirements
  • Cable length can be supplied as per requirement
  • 2×20 LCD with sufficient keys and Status LED
  • Battery backup provided for the time update
  • Alarm Contact provided for the annunciation
  • All weather proof Antenna

Applications

  • Event Loggers
  • Disturbance Recorders
  • Electronic tri-vector meters
  • Phasor measurement unit
  • SCADA servers
  • Numeric Relays
  • Slave clocks
  • Servers of EMS
  • Electronics Instruments
  • Standalone computers

Specifications

Power Supply
Standard 18V to 36V DC (24V)
Custom 36V to 72V DC (48V), 85 to 260V AC, 1φ, (47Hz to 63Hz) or 90V to 370V DC
Power Consumption <50W
Note: Redundant power supply input available*
GPS Receiver & Antenna
Configuration Single Antenna
Dual Antenna*
Timing Accuracy < 20nS RMS Accuracy
Output Impedance 50Ω
Frequency 1575.42 ±1.023MHz
Environmental All weather proof Antenna, IP67
Satellite tracking 12 Channels, C/A code
Coverage 360°Azimuth, 0°- 90°Elevation
User Interface
LCD Display 2×20 Alphanumeric
Status LED GPS-A, GPS-B,MAST-A, MAST-B,COMP, PPS, & PWR
Keypad UP, Down & Enter
Alarm PFC contact for GPS Fail, Comparator Fail & Power Fail
Configuration port 10/100Mbps Ethernet
Environment
Operating Temp 0°to 50°C
Humidity 95% Non-Condensing
Mechanical
Enclosure 3U, 19” Rack Mountable
Dimension 132mm (H) x 484mm (W) x 300mm (D) +5mm
Weight <6Kg
Protection Class IP20
Event Output (Pulse Output)*
User Configurable Pulse output PFC, 250V AC/DC, 0.2A
(PPS, PP5S, PPM, PPQH, PPHH, PPH, PPD)
Connector Pluggable Terminal Block
Number of Output 8Nos Max per card
IRIG-B Output*
Amplitude Modulation (AM) Carrier : 1kHz
Format : User Selectable
Modulation Ratio : 3:1
Unloaded Voltage : 0-5V (p-p)
Loaded Voltage : 0-3V (p-p) 150 ohm
Accuracy : <3 us to PPS
Maximum Distance : 3km
Pulse Width Modulation (PWM/ TTL) Logic 0 : 0V +250mV
Logic 1 : 5V +250mV
Format : User Selectable
Accuracy : <200ns to PPS
Rise Time : <15ns
Maximum Distance : 50m
Number of Output 4Nos Max per card
Connector BNC,75Ω, Female
Ethernet Output*
Protocol PTP, NTP & SNTP
Speed 10/100Mbps
10/100/1000Mbps
Connector RJ45
Maximum Distance 100m max without switch.
Number of Output 4Nos Max per card with NTP & SNTP
2Nos Max per card with PTP, NTP & SNTP
RS232 Output*
Output Modbus, NMEA and standard formats
Number of Output 4Nos Max per card
Connector DB9, Female
RS485 Output*
Output IRIG-B,Modbus, NMEA and STD formats
Number of Output 8Nos Max per card
Connector Pluggable Terminal Block
Fiber Optic Output*
TTL(Pulse/IRIG-B TTL) On FO Transmission : Simplex
No of output : 4No Max per card
Mode : Multimode
Connector : SC/ST
Wavelength : 820nm
Distance : 1500m
Ethernet On FO Transmission : Duplex
No of output : 2No Max per card
Mode : Multimode/Singlemode
Connector : SC/ST/FC
Wavelength : 1310nm
Distance : 2000m
DCF77 Output*
Recommended input voltage range 24V/0.2A  +10%
Number of Output 4Nos Max per card
Connector Pluggable Terminal Block
BCD Output*
Recommended input voltage range 24V/0.2A  +10%
Number of Output 2Nos Max per card
Connector DB37, Female
Note:
* Optional
Maximum of 6 Output cards can be used, while Single power supply input being used.
Maximum of 5 Output cards can be used, while Redundant power supply input being used.

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