SmartACU2000D Smart Array Controller
User Manual (with No PID Module)
5 Electrical Connections
Issue 01 (2020-02-14)
Copyright © Huawei Technologies Co., Ltd.
61
Figure 5-17
Connecting a cable
----End
5.8 Connecting the Peripheral RS485 Communications
Cables
Connect peripheral RS485 communications cables to the JX01 terminal block. All RS485
communications cables are connected in the same way. This section describes how to connect
two RS485 communications cables.
Table 5-1
Definition of the JX01 terminal block
No.
Port on the JX01
Terminal Block
Definition
1
RS485-1 (+)
RS485A, RS485 differential
2
RS485-1 (–)
RS485B, RS485 differential signal–
3
RS485-2 (+)
RS485A, RS485 differential
4
RS485-2 (–)
RS485B, RS485 differential signal–