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4. Interface and Communication
As shown in Figure 4-1, there are Battery Temperature sensor port (X1), Emergency Power Off Port (X2),
communication port (RS232/USB), SNMP Card slot and extra Comm. card slot on the front panel.
Figure 4-1 Dry Contact Ports and Communication Ports
Dry Contact No.
Function
X1
Battery Temperature Detection Port
X2
Remote EPO input port
4-1. X1- Temperature Detection Port for External Battery Pack
The UPS is equipped with battery temperature detection function. UPS can receive battery temperature
signal through the temperature detection board. Communication between the UPS and battery temperature
detection board is via I2C communication protocol. X1 is the battery temperature detection port. The port is
shown in Figure 4-2 and described in Table 4-1.
Figure 4-2 Battery Temperature Detection Port
Table 4-1 Description of Battery Temperature Detection Port
Name
Position
Description
SCL
X1.1
I²C communication SCL Signal
SDA
X1.2
I²C communication SDA Signal
+3.0V
X1.3
3V
Power GND
X1.4
GND
