Huawei NetCol5000-A025 - Page 90

Figure 3-49 Zoomed-in view of external signal ports
Table 3-13 describes the
denitions and functions of external signal ports.
Table 3-13 Denitions and functions of external signal ports
No.
Port Silk
Screen
Port Name
X301 1 Outdoor unit
control
Outdoor unit control dry contact
2 Outdoor unit control dry contact
3 Smoke sensor Smoke sensor power supply (12 V
DC)
4 Smoke sensor feedback
5 Remote startup
and shutdown
Remote startup and shutdown+
6 Remote startup and shutdown–
7 Water sensor Water leak detection– contact 1
(water leak in the oor)+
8 Water leak detection– contact 1
(water leak in the oor)–
X302 1 Outdoor unit
RS485 control
RS485-SW+
2 RS485-SW–
3 GND-ISO
4 Dry contact alarm
1
Dry contact alarm 1
5 Dry contact alarm 1
6 Dry contact alarm
2
Dry contact alarm 2
7 Dry contact alarm 2
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 3 Installation Guide
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 80