Huawei NetCol5000-A035 - 3.11.4 Connecting the Signal Cables

Port
Nam
e
Denition Function Port Feature
X2.3,
X2.4
Port for
reporting
common
alarm 2
Alarm dry contact output.
When DO associated
alarm is set to Smoke only,
the smart cooling product
issues an alarm if a smoke
or water alarm occurs.
Alarm dry contact output.
When DO associated
alarm is set to Critical
ALM, the smart cooling
product issues an alarm if a
critical alarm occurs.
NO signal dry contact
output. Connection to an
outdoor device is
forbidden.
X2.5,
X2.6
Port for the
outdoor
unit on/o
signal cable
Terminals X2.5 and X2.6 are
control signal input
terminals of an outdoor
unit.
N/A
X2.7,
X2.8
Port for the
remote
shutdown
of an
indoor unit
Terminals X2.7 and X2.8 can
be set to remotely shut
down an indoor unit.
Specically, the control
signal cable is routed from
the ports to the monitoring
room and control the
shutdown of the indoor
unit. They are disconnected
before delivery. The
emergency switch for
remote shutdown should be
steady on.
DI input. Can connect to
the dry contact input.
Normally open in normal
status and normally closed
when a fault occurs. The
dry contact must be used
indoor only, and the usage
range is within 100 meters.
Do not connect two or
more units to one outside
dry contact.
X2.9,
X2.10
Water
sensor port
The water sensor is
connected to terminals X2.9
and X2.10. After the water
sensor is installed, the
NetCol5000-A generates an
alarm when water leak
occurs.
The Huawei product is
recommended.
NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width) 3 Installation Guide
Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. 71