Huawei iSitePower-M - Page 32

Figure 4-6 Ports on the battery module
(1) Alignment boss (2) COM port (3) Terminals for battery
module cascading
(4) Heat sink (5) Ground points
Communications Port
Table 4-7 Communication port description
Port
Communications
Parameter
Communicati
ons Protocol
Description
COM Baud rate: 250 kbit/s CAN protocol Communicati
ons port for
a battery
module
NOTE
The preceding port is protected by security mechanisms.
Table 4-8 COM pin denition
Pin
Signal Description
1 START+ Manual ON/OFF switch
2 START-
3 Null -
4 Null
5 Null
6 Null
7 CANH CAN bus high level
iSitePower-M (MAP05A1, MAB05B1)
User Manual 4 Components
Issue 02 (2021-12-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 27