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42
5. Interface and Communication
The front panel contains a Battery Temperature sensor port, two Emergency Power Off Ports, a communication port (RS-232/USB), SNMP
card slot and an extra communication card slot.
Figure 5.1 Dry Contact Ports and Communication Ports
Dry Contact No. Function
X1 Battery Temperature Detection Thermostat Port
X2 Remote EPO Input Port
5.1. X1 - Temperature Detection Port for External Battery Pack
The UPS is equipped with a battery temperature detection function. The UPS can receive a battery temperature signal through the
temperature detection thermostat board. Communication between the UPS and battery temperature detection thermostat board is via I2C
communication protocol. X1 is the battery temperature detection port. The port is shown in Figure 5.2 and described in Table 5.1.
Figure 5.2 Battery Temperature Detection Port
Table 5.1 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
X1
X2
SNMP Card Slot
RS 232 Port
USB Port
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