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RMS-RELAY02B External Dry Contact Card
User Manual
Figure 2-2 RS485_IN and RS485_OUT ports
Table 2-1 RS485_IN and RS485_OUT port pin definitions
Function
RS485_IN
RS485_OUT
The external dry contact card provides a dry contact, as shown in
Issue Draft A (2017-01-19)
Terminal
No.
Type
RJ45
1
2
3
4
5
6
7
8
RJ45
1
2
3
4
5
6
7
8
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Pin
Terminal
Definition
RS485A
RJ45 terminal
RS485B
12V_IN
RS485A
RS485B
N/A
N/A
GND
RS485A
RJ45 terminal
RS485B
12V_IN
RS485A
RS485B
N/A
N/A
GND
Figure
2-3.
2 Overview
4
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