Huawei Telecom Power TP48120A-HD15A1 User Manual page 38

TP48120A-HD15A1, TP48120A-HD15A2,
TP48200A-HD15A1, and TP48200A-HD15A2 Telecom
Power
User Manual
Port Positions
Figure 3-8 Door-mounted SMU06C ports
(1) RS232/RS485 port
(4) Dry contact input
ports
(7) External fan ports
Table 3-5 SMU06C communications port description
Port Communications
Parameters
COM port Baud rate: 9600 bit/s
and 19,200 bit/s
RS485/RS232 Baud rate: 9600 bit/s
port and 19,200 bit/s
Table 3-6 Description of pins in the COM and RS485/RS232 ports
pins port
Issue 03 (2020-01-04)
Communications Protocol
Modbus protocol
NetEco NMS, YDN1363 and
Modbus protocol
Name Pin
COM port 1
2
3
4
5
6
7
8
RS485/RS232 port 1
Copyright © Huawei Technologies Co., Ltd.
(2) COM port
(5) Battery temperature sensor
port
(8) Fan power port
Signal
COM_R+
COM_R-
NC
COM_T+
COM_T-
GND
NC
NC
RS485_T+
3 Components
(3) Dry contact output
ports
(6) Internal fan ports
Function
Connects to lower-level
devices such as the battery
voltage detector, DC Air
Conditioner.
Connects to upper-level device
such as BBU, PSNU.
Description
Receives data
-
Sends data
Signal ground
-
-
Sends data
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