Chapter 2. Technical Data
2-7
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
2.4
Communications Link
Glass Fiber Optics
Type
Multimode
Wavelength
820 nm
Connector
ST
Transmitter Minimum Power
50/125 Fiber
- 20 dBm
62.5/125 Fiber
- 17 dBm
100/140 Fiber
- 7 dBm
Receiver Sensitivity
- 25.4 dBm
Plastic Fiber Optics (1 mm)
Wavelength
660 nm
Transmitter Minimum Power
- 16 dBm
Receiver Sensitivity
- 39 dBm
RS232C Port Signals
Terminal unit DB-9 (9-pin) connectors
Pin 5 - GND
Pin 2 - RXD
Pin 3 - TXD
Terminal unit DB-25 (25 pin) connectors
Pin 2 - TXD
Pin 3 - RXD
Pin 4 - RTS
Pin 5 - CTS
Pin 7 - GND
RS485 Transmission
Signals Used
A (B5)
B (B6)