iBattery 3.0
User Manual
2 Overview
Issue 07 (2019-12-30)
Copyright © Huawei Technologies Co., Ltd.
8
Table 2-4
COM port pin definitions
Pin
Signal
Description
1
RS485+
Two cascaded RS485 communication ports
2
RS485–
3
NC
4
RS485+
5
RS485–
6
GND
7
NC
8
NC
DI and DO Ports
Table 2-5
DI and DO port pin definitions
Pin Definition Signal
Description
Status Description
Initial
Status
Remarks
1
+
Dry contact
input signal
Open: The dry contact
input is open.
Closed: The dry contact
input is closed.
Open
Dry
contact
input and
output
signal
2
–
3
NO
Dry contract
output signal
Open: The dry contact
output is open.
Closed: The dry contact
output is closed.
Open
4
COM
HALL Current Monitoring Port
Figure 2-6
HALL current monitoring port pins