Huawei NetCol8000-C190 User Manual page 29

NetCol8000-C190 In-room Chilled Water Smart
Cooling Product
User Manual (2022, Singapore STT)
(10) COM/FE port
Indicators
Indicator
Running indicator (RUN)
Alarm indicator (ALM)
Communications Ports
●
●
●
●
Appeara
nce
Issue 02 (2022-03-30)
FE_1 and FE_2 ports: reserved for connecting FE (MAC_CAN) teamwork
communications cables.
CAN_IN and CAN_OUT ports: connect CAN teamwork and RS485 monitoring
cascading communications cables.
RS485/12V port: connects a temperature and humidity (T/H) sensor.
COM/FE port: connects a monitoring communications cable.
Port
Pin PIN1
PIN2
PIN3
PIN4
PIN5
PIN6
PIN7
PIN8
Copyright © Huawei Technologies Co., Ltd.
(11) DP port
Status
Off
Blinking green
Off
Steady red
FE_1 and CAN_IN
FE_2 and
CAN_OU
T
FE TX+ RS485 T+
(+)
FE TX– RS485 T–
(–)
FE RX+ -
- RS485 R+
- RS485 R–
FE RX– -
- CANH
- CANL
2 Product Description
Description
The unit is shut down.
The unit is started.
There is no alarm, or a
warning or minor alarm
is generated.
There is a major or
critical alarm.
RS485/1 COM/FE
2V Port Port
RS485 FE TX+
HT+
RS485 FE TX–
HT–
12V FE RX+
RS485 RS485+
HT+
RS485 RS485–
HT–
- FE RX–
- -
GND -
21