Connecting Communications Cables - Huawei UPS5000-E Series User Manual

UPS5000-E-(25 kVA-125 kVA)
User Manual (25 kVA power modules)

3.2.13.7 Connecting Communications Cables

Procedure
Step 1 Connect the MUS05A port on the MDU to the MDU port on the monitoring interface card, as
shown in
Figure 3-36 Connecting the MDU port
Step 2 Connect the monitoring units to the dry contacts on the monitoring interface card.
Step 3 Connect the external network management device to the RS485 port.
Figure 3-37
Figure 3-37 RS485 pins
Table 3-7 Pin definition
Issue 06 (2020-01-10)
Figure 3-36.
and Table 3-7
Pin
1
2
3
Copyright © Huawei Technologies Co., Ltd.
describe the RS485 pin definitions.
Description
RS485_T+
RS485_T–
-
3 Installation
74