Huawei IDS2000 Installation Manual page 197

IDS2000 Intelligent Micro-Modular Data Center
Installation Guide (2000 mm High Cabinet in Dual-Row
Aisle Containment)
Port
COM4/12 V and COM5/12 V ports: Pins 3 and 8 of these two ports provide 12 V DC power.
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 A-3 Ports on an AI/DI expansion card
Port
DO
12 V/0.3 A
AI/DI_1–AI/DI_4

Issue Draft A (2015-06-29)
Description
electronic door locks.






Description
Provides the DO output control.


Provides a 12 V DC output for supplying less than 300 mA
power to devices such as the audible and visual alarms.


Provides 12 V DC outputs for sensors and are compatible with
4–20 mA current signals, signals from current-based smoke
sensors and water sensors, dry contact signals, and NTC signals.








Type_1 to Type_4 indicate types of data sent through the AI/DI ports, corresponding to different
types of sensors.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1: A
2: B
3: 12 V DC
4: A
5: B
8: GND
NO
COM
12 V DC, 300 mA
GND
1: Type_1
2: Type_2
3: 12 V DC, 54 mA capacitive loads
4: Type_3
5: Type_4
6: D-
7: D+
8: GND
A Appendix
189