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6.1 Power Cables
6.1.1 4-Pin Power Cable (Without Terminals)
Description
A 4-pin power cable receives power from two inputs: one input directly from a power source
on the vehicle (constant power supply) and the other input from the ACC circuit (switch
controlled power supply).
Appearance and Structure
shows the structure of a power cable.
Figure 6-1
Structure of a power cable
ACC+
ACC-
+
-
1
2
2
2
3
3
4
4
1
1
4
3
P1
P2
Specifications
None
Pin Assignments
lists the pin assignments of a 4-pin power cable.
Table 6-1
Pin assignments of a 4-pin power cable
Connector P1
Connector P2
Wire Color
1
-
Black
2
ACC-
Green
3
ACC+
Red
4
+
White
Connection
A 4-pin power cable is connected as follows:
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
6 Cables
Issue 10 (2019-03-06)
Copyright © Huawei Technologies Co., Ltd.
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