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6. Communications
Connection Between the Connected Device’s RS-485 Port and UPS System’s RS-485 Port
Device (RJ-45) UPS (RJ-45) 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
Available Functions of the RS-485 Port
• Monitor UPS power status
• Monitor UPS alarm info
• Monitor UPS running parameters
• Timing o/on setting
• Battery environment temperature monitoring
• Charging voltage modulation depending on batteries temperature
RS-485 Communication Data Format
• Baud rate: 9600 bps
• Byte length: 8 bit
• End bit: 1 bit
• Parity check: None
6.6 BAT_T Communication Port Denition
Notes:
• The USB, RS-232 and RS-485 interfaces cannot be used simultaneously. Only one interface can be used at a time.
• This port may also be used for MODBUS communications. Refer to section 6.5 RS-485 Communication Port Denition.
The BAT_T Port is a female connector. The external battery cabinet thermostat used for temperature charging
compensation may be connected to this port.
Connection Between the Temperature Sensor RJ45 Port and UPS RJ45 Port
Temperature Sensor (RJ45) UPS BAT_T (RJ45) Description
Pin 1/5 Pin 1/5 TX
Pin 2/4 Pin 2/4 RX
Pin 7 Pin 7 12V
Pin 8 Pin 8 GND
Available Functions of the BAT_T Port
• Battery environment temperature monitoring
• Charging voltage modulation depending on batteries’ temperature
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