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PowerCube 1000 (STC, Saudi Arabia, ICC800-A1-C2,
ESC800-A1)
Installation Guide
Table 3-34 Communications port pins
Pin Definition
Activation and Startup
Table 3-35 Activation mode
Item
PWR activation
MANUAL ON/OFF activation
Power port activation
Notes:
1. The MANUAL ON/OFF button is a contact button. The interval for pressing the button should
be greater than 0.5s; otherwise, the operation is ineffective.
2. If you have powered off the ESM that is in charging, discharging, or disconnected mode by
holding down the MANUAL ON/OFF button, you need to hold down this button again to
reactivate the ESM.
Issue 02 (2021-09-28)
RJ45 Pin
Signal
1
RS485 T+
2
RS485 T-
3
NC
4
RS485 R+
5
RS485 R-
6
NC
7
CANH
8
CANL
Requirement
The PWR activation port receives 43.2–58 V DC
power for at least 5s.
Hold down the MANUAL ON/OFF button for at
least 5s and less than 15s.
The power port receives 43.2–58 V DC power for
at least 5s.
Copyright © Huawei Technologies Co., Ltd.
Definition
Description
RS485
● Four-wire RS485
transmission
communications,
+
complying with the
Modbus protocol
RS485
● Support the baud
transmission
rate of 9600 bit/s.
–
Reserved
RS485
reception +
RS485
reception –
Reserved
-
CAN
Used to report alarms
communicati
to a monitoring unit
on +
and exchange data
between ESMs
CAN
connected in parallel.
communicati
on –
3 Component
60
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