Huawei TP482000B Series - Page 46

TP482000B V300R002C03 Telecom Power
(TP482000B-N20B1, TP482000B-N20B2,
TP481200B-N20B1, and TP481200B-N20B2)
User Manual
5 Components
Issue 07 (2020-04-10)
Copyright © Huawei Technologies Co., Ltd.
40
Table 5-8 RS485 port pin definition
Pin
Signal
Description
1
RS485T+
RS485 transmit
2
RS485T-
4
RS485R+
RS485 receive
5
RS485R-
7
CAN_H
CAN high level signal
8
CAN_L
CAN low level signal
3 and 6
-
-
Table 5-9 PELU port pin definition
Pin
Signal
Description
1
5 V
+5 V power output
3
GND
Signal ground
4
SDA
I
2
C data
5
SCL
I
2
C clock
2, 6, 7, and 8
N/A
N/A
Table 5-10 Dry contact description
Port
Silk Screen
Description
Associated Alarm
Dry contact
input ports
DIN1
Dry contact input 1
N/A
DIN2
Dry contact input 2
DIN3
Dry contact input 3
DIN4
Dry contact input 4
Dry contact
output
ports
ALM1
Dry contact output 1
N/A
ALM2
Dry contact output 2
ALM3
Dry contact output 3
ALM4
Dry contact output 4
ALM5
Dry contact output 5