Indicators
Indicator Status Description
Running indicator (RUN) O The unit is shut down.
Blinking green The unit is started.
Alarm indicator (ALM) O There is no alarm, or a
warning or minor alarm
is generated.
Steady red There is a major or
critical alarm.
Communications Ports
● 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.
Appeara
nce
Port FE_1 and
FE_2
CAN_IN
and
CAN_OU
T
RS485/1
2V Port
COM/FE
Port
Pin PIN1 FE TX+ RS485 T+
(+)
RS485
HT+
FE TX+
PIN2 FE TX– RS485 T–
(–)
RS485
HT–
FE TX–
PIN3 FE RX+ - 12V FE RX+
PIN4 - RS485 R+ RS485
HT+
RS485+
PIN5 - RS485 R– RS485
HT–
RS485–
PIN6 FE RX– - - FE RX–
PIN7 - CANH - -
PIN8 - CANL GND -
● USB port: connects a WiFi module or USB
ash drive.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 2 Product Description
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 31
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