TP48200A-HT19C3 and TP48200A-HT19C4 Telecom
Power
User Manual
3 Components
Issue 03 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
42
Port Definitions
Figure 3-26
Ports on the electric door lock
Table 3-13
Port definitions of the electric door lock
Pin
Definitions
Description
1
TX+
Sends data over RS485.
2
TX-
3
+12 V
Supplies power for the
electric door lock
4
RX+
Receives data over RS485.
5
RX-
6
OPEN_DOOR
Controls the electric door
lock (reserved)
7
GND
GND
8
GND
GND