Huawei IDS2000 Dual-Row Aisle Containment Installation Manual page 211

IDS2000 Dual-Row Aisle Containment
Installation Guide (Split-type Skylight, Old-Version
Sliding Door)
Silk Screen
COM4/12V and COM5/12V
COM4/12V and COM5/12V ports: Pins 3 and 8 of these two ports provide 12 V DC power.
Therefore, before connecting equipment to the ports, check the equipment pin description to
ensure that pins of the equipment match those on the ports, preventing damage to ports or the
equipment.
Table 10-45 Description of ports on the front panel of the AI/DI expansion card
Silk Screen
DO
12V/0.3A
AI/DI_1, AI/DI_2, AI/DI_3, and AI/DI_4
Issue 02 (2015-06-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Port Description
conditioning unit (ACU).
 1: A
 2: B
 4: A

5: B
Provide DC outputs of 12 V (actual range:
12.8–15 V), 400 mA to equipment such as
independent AI/DI expansion modules and
electronic door locks.
 1: A
 2: B

3: DC 12 V

4: A
 5: B
 8: GND
Port Description
Provides the DO control function.
 NO
 COM
Provides a 12 V DC output for supplying
less than 300 mA power to devices such as
the audible and visual alarms.
 DC 12 V, 300 mA
 GND
Provide 12 V DC outputs for sensors and
are compatible with 4 mA to 20 mA current
signals, signals from current-based smoke
sensors and water sensors, dry contact
signals, and NTC signals.

1: Type_1

2: Type_2
10 Cable Layout
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