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TP48200A-HT19C4-1 & TBC300A-TCA2
Installation Guide
Communication Port
Table 3-8 COM communication port description
Communication
Port
COM port
NOTE
Figure 3-8 Pins in the COM port
Table 3-9 Pin definitions for the COM port
Pin
1
2
4
5
6
3, 7, 8
Pins
Figure 3-9
Issue 01 (2014-03-12)
Communications
Parameter
Baud rate: 9600 bit/s,
19200 bit/s
The COM port supports the security mechanism.
shows the pin numbers of the sensor ports.
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Copyright © Huawei Technologies Co., Ltd.
Signal
RX+
RX-
TX+
TX-
PGND
None
Communications
Protocol
M/S and Modbus
protocol
Description
Receives data over RS485.
Sends data over RS485.
Connects to the ground.
N/A
Table 3-10
defines the pins.
3 Components
Function
Connects to
lower-level
devices such as
the battery
voltage
detector, DC
Air
Conditioner.
25
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