Huawei SmartLi 100Ah - Page 53

PowerCube 5000
User Manual (SmartLi 100Ah)
2 Products
Issue 02 (2020-03-17)
Copyright © Huawei Technologies Co., Ltd.
45
Figure 2-29 BCU
Table 2-37 Port description
Port
Silk Screen
Description
Ports for
BCU-BMU
interaction
BMU IN
Connects to the first BMU and contains the 48 V
active equalization cable, 12 V auxiliary power
supply, CAN communication, and RS485
communication (positioning).
BMU OUT1
Connects to the last BMU and contains the 48 V
active equalization cable, 12 V auxiliary power
supply, CAN communication, and RS485
communication (positioning).
BMU OUT2
Sensor ports
TEMP1
Monitors the ambient temperature inside the
cabinet.
TEMP2
Monitors the ambient temperature outside the
cabinet.
GATE
Door status sensor port
SMOKE
Smoke sensor port
WATER
Water sensor port
Dry contact ports
EPO1
Dry contact of the EPO button (connected to the
EPO button, connected to the EPO2 port on the
other module hand in hand)
EPO2
Dry contact for the EPO button (connected to the
EPO1 port on the other module hand in hand)
DI
Input dry contact
DO
Output dry contact
System
communication
ports
LED
Cabinet indicator port
ELU
Electronic label port
MDU IN
MDU port
BUS TEMP
Copper bar temperature monitoring port
UPS 485
Reserved UPS RS485 communications port
A/C 485
Reserved air conditioner communications port
PLC IN
Reserved PLC communications port