TP48200A-DT19C1 & DT19C2 & HT19C1 & HT19C2
Installation Guide
3 Components
Issue 03 (2014-02-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
28
Port Type
Silk Screen
Description
Dry contact output
ports
ALM1
NOTE
For the associations between the dry contact output
ports and alarms, see the appendix.
ALM2
ALM3
ALM4
ALM5
ALM6
ALM7
ALM8
Communications port
COM
RS485 port
Communication Port
Table 3-8
COM communication port description
Communication
Port
Communications
Parameter
Communications
Protocol
Function
COM port
Baud rate: 9600 bit/s,
19200 bit/s
M/S and Modbus
protocol
Connects to
lower-level
devices such as
the battery
voltage
detector, DC
Air
Conditioner.
NOTE
The COM port supports the security mechanism.
Figure 3-10
Pins in the COM port