Huawei NetCol8000-E220 User Manual page 62

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Context
Figure 3-39 Signal terminals
Table 3-11 Signal table
No.
1
2
3
4
5
6
7
8
Procedure
Step 1 Connect one end of the water sensor cable to the water sensor.
Issue 02 (2019-10-10)
X501
Smoke sensor power supply
+
Smoke sensor feedback -
Port for remote startup and
shutdown+
Port for remote startup and
shutdown–
Port 1+ for reporting
common alarms
Port 1– for reporting
common alarms
Port 2+ for reporting
common alarms
Port 2– for reporting
common alarms
Copyright © Huawei Technologies Co., Ltd.
X502
Water leakage detection
(water leakage in the floor)
Water leakage detection
(water leakage in the floor)
N/A
N/A
N/A
N/A
N/A
N/A
3 Installation Guide
X503
RS485+
(Differential
pressure sensor)
RS485–
(Differential
pressure sensor)
GND
12 V+
N/A
N/A
N/A
N/A
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