IDS2000 Dual-Row Aisle Containment
Installation Guide (Split-type Skylight, Old-Version
Sliding Door)
10 Cable Layout
Issue 02 (2015-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
201
Table 10-39
Description of ports on the UEU serial port expansion card
Port
Description
D_COM[0:3]
Four downlink RS485 ports connect to components with RS485 ports.
RS232
One RS232 port connects to components with RS232 ports.
Table 10-40
Description of RS232 port pins
No.
Pin
Description
1 Orange and white
NC
Floated
2 Orange
NC
3 Green and white
TX
RS485 transmit end
4 Blue
GND
Ground end
5 Blue and white
GND
6 Green
RX
RS485 receive end
7 Brown and white
NC
Floated
8 Brown
NC
Table 10-41
Description of D_COM3 port pins
No.
Pin
Description
1 Orange and white
RX+
RS485 receive end
2 Orange
RX–
3 Green and white
12 V
12 V power output
4 Blue
TX+
RS485 transmit end
5 Blue and white
TX–
6 Green
GND
Address identification
output, low level
7 Brown and white
NC
Floated
8 Brown
GND
Ground end
Table 10-42
Description of ports on the TCU expansion card
Port
Description
VALVE
The port controls the valve.