Pin Assignments
Table 6-100 lists the pin assignments of a 20-pin Boolean input/output cable.
Table 6-100 Pin assignments of a 20-pin Boolean input/output cable
Connector P1 Label Signal
1 Label1 DI_0
2 Label2 GND
3 Label3 DI_1
4 Label4 DI_2
5 Label5 DI_3
6 Label6 DI_4
7 Label7 DI_5
8 Label8 GND
9 Label9 GND_AI
10 Label10 AI_0
11 Label11 AI_1
12 Label12 DI_6
13 Label13 DI_7
14 Label14 GND
15 Label15 DO_OPEN_0
16 Label16 DO_CLOSE_0
17 Label17 DO_COM_0
18 Label18 DO_OPEN_1
19 Label19 DO_CLOSE_2
20 Label20 DO_COM_3
Connection
A 20-pin Boolean input/output cable is connected as follows:
l The 20-pin connector at one end is connected to the 20-pin Mini-Fit interface on a router.
l Wires at the other end are connected to a digital input device, and the AI analog input is
connected to an external analog voltage.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
6 Cables
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 724
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