Huawei NetCol8000-A045D User Manual page 318

NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual
Figure A-3 Signal terminals
Table A-1 Signal table
No.
1
2
3
4
5
6
7
8
Issue 05 (2020-10-10)
x501
Smoke sensor power
supply (12 V DC)
Smoke sensor
feedback
Remote startup/
shutdown+
Remote startup/
shutdown–
Common alarm 1+
Common alarm 1–
Common alarm 2+
Common alarm 2–
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x502
Water leakage
detection (water
leakage from the
floor)+
Water leakage
detection (water
leakage from the
floor)–
24 V DC power supply
Differential pressure
sensor GND
Differential pressure
sensor 0–5 V feedback
Differential pressure
sensor 5 V DC
Reserved
Reserved
A Electric Control Box Layout
x503
Outdoor unit RS485+
for system 1
Outdoor unit RS485–
for system 1
Outdoor unit RS485–
GND for system 1
N/A
Outdoor unit RS485+
for system 2
Outdoor unit RS485–
for system 2
Outdoor unit RS485–
GND for system 2
Reserved
308