17
1
2
3
4
5
6
7
8
9
8 – Communications
Note: These connections are optional. The UPS system will function without these connections.
8-1 Network Card
8-2 EPO Connection
8-3 RS-232 Serial Communications
The UPS system includes an internal network card that provides an Ethernet interface for remote monitoring and control of the UPS system.
Refer to the network card documentation for additional information.
Note: The network card must be removed in order to use the UPS system’s
RS-232 port.
Shorting the EPO terminals activates the EPO (emergency power off) function, which provides emergency shutdown of the UPS system.
Note: The network card must be removed in order to use the UPS system’s RS-232 port.
Use the included RS-232 (DB9) serial cable to connect the UPS system’s RS-232 serial port to a computer’s RS-232 serial port. Install the
included software on the computer in order to monitor and control the UPS system. (See the software documentation for system requirements,
installation instructions and additional information.)
RS-232 interface settings:
Baud Rate
2400 bps
Data Length
8 bits
Stop Bit
1 bit
Parity
None
RS-232 pin assignments:
Pin 3: RS-232 Rx
Pin 2: RS-232 Tx
Pin 5: Ground
