UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
2 Overview
Issue 01 (2020-04-27)
Copyright © Huawei Technologies Co., Ltd.
33
Port
Silk
Screen
Description
Network port for connecting to the web
service and for SNMP networking.
Northbound
communications port
RS485
Supported protocol: Modbus-RTU.
Connects to a northbound network
management device or a third-party network
management device over two wires.
Signal cables must be double-insulated twisted cables. If the cable length is 25–50 m, the
cross-sectional area must be 0.5–1.5 mm
2
.
RS485 cables and FE cables must be shielded cables.
are recommended wiring methods for DO ports.
Figure 2-17
Wiring method 1
Figure 2-18
Wiring method 2