GE P645

2.5 REAR SERIAL PORT 2
Optional rear serial port (RP2)
Use For SCADA communications (multi-drop)
Standard EIA(RS)485, K-bus, EIA(RS)232
Designation SK4
Connector 9 pin D-type female connector
Cable Screened twisted pair (STP)
Supported Protocols Courier
Isolation Isolation to SELV level
Constraints Maximum cable length 1000 m for RS485 and K-bus, 15 m for RS232
2.6 IRIG-B (DEMODULATED)
IRIG-B Interface (Demodulated)
Use External clock synchronisation signal
Standard IRIG 200-98 format B00X
Connector BNC
Cable type 50 ohm coaxial
Isolation Isolation to SELV level
Constraints Maximum cable length 10 m
Input signal TTL level
Input impedance 10 k ohm at dc
Accuracy < +/- 1 s per day
2.7 IRIG-B (MODULATED)
IRIG-B Interface (Modulated)
Use External clock synchronisation signal
Standard IRIG 200-98 format B12X
Connector BNC
Cable type 50 ohm coaxial
Isolation Isolation to SELV level
Constraints Maximum cable length 10 m
Input signal peak to peak, 200 mV to 20 mV
Input impedance 6 k ohm at 1000 Hz
Accuracy < +/- 1 s per day
2.8 REAR ETHERNET PORT COPPER
Rear Ethernet port using CAT 5/6/7 wiring
Main Use Substation Ethernet communications
Standard IEEE 802.3 10BaseT/100BaseTX
Connector RJ45
P64x Chapter 21 - Technical Specifications
P64x-TM-EN-1.3 457