Huawei FusionModule2000 Product Description page 44

FusionModule2000 Smart Modular Data Center
Product Description
Port
DO_4
DB26
Battery
temperature sensor
port
Southbound
communications
port 1
Southbound
communications
port 2
Network port
Northbound
communications
port
Figure 5-29
Figure 5-29 Wiring method 1
Issue 06 (2020-05-21)
Silk Screen
NO
COM
MDU
B_TEMP
COM1
COM2
FE
RS485
 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
 RS485 cables and FE cables must be shielded cables.
and Figure 5-30
Copyright © Huawei Technologies Co., Ltd.
Description
voltage.
DO_4 is used to output alarms and indicates battery
mode by default. It can be set to indicate critical
alarms, minor alarms, bypass mode, or low battery
voltage.
Provides FE, RS485, I2C, and CAN signals.
Connects to an indoor battery temperature sensor.
 Supported protocol: Modbus-RTU.
 Connects to an ambient temperature and
humidity sensor over two wires.
 Supported protocol: Modbus-RTU.
 Connects to a southbound device.
 Supported protocols: Modbus-TCP, HTTPS, and
SNMP.
 Connects to the network port on a PC.
 Supported protocol: Modbus-RTU.
 Connects to a northbound network management
device over two wires.
2
.
are recommended wiring methods for DO ports.
5 Power Supply and Distribution System
36