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Appendix 5 - RS485 Communication Port
Port Definition:
Connection between the Device’s RS-485 port and UPS RS-485 port.
Device (RJ45)
UPS (RJ45)
Description
Pin 1/5
Pin 1/5
485+ “A”
Pin 2/4
Pin 2/4
485 - “B”
Pin 7
Pin 7
+12Vdc
Pin 8
Pin 8
GND
The RS-485 functionality:
◆
Monitor UPS power status.
◆
Monitor UPS alarm info.
◆
Monitor UPS operating parameters.
◆
Timing settings.
◆
Battery and environment temperature monitoring.
◆
Charging voltage modulation depending on battery temperature.
CAUTION!
Either the USB or the RS-232
or
the RS-485 interface can be used. Not
more than one will function at a time
The RS-485 port pin 7 is 12V DC.