Huawei ECC800 - Page 36

ECC800 Data Center Controller
User Manual (for ECC800-Pro)
3 Device Description
Issue 06 (2020-04-22)
Copyright © Huawei Technologies Co., Ltd.
25
Figure 3-7 UIM20A expansion module rear panel
(1) DIP switch
(2) COM_OUT
(3) COM_IN
Table 3-17 UIM20A expansion module specifications
Item
Specifications
Width
120 mm
Depth
200 mm
Height
43 mm
Operating
temperature
–30°C to +65°C
Installation
requirements
Installed in a 19-inch rack
Environmenta
l protection
RoHS5
Specifications
Table 3-18 User interface technical specifications
Item
Specifications
Power input
Supports the RS485 or POE power supply.
COM/AIDI (RJ45)

Supports eight RS485 or AI/DI signal inputs.

Can connect to sensors such as the smoke sensor, water sensor,
door status sensor, and infrared sensor.

Each port can supply power. Two RJ45 ports share one 12 V DC
power supply that is controlled independently. The maximum
output current is 900 mA when the voltage is 12 V.
(COM1/AIDI_1 and COM2/AIDI_2 form a group,
COM3/AIDI_3 and COM4/AIDI_4 form a group,
COM5/AIDI_5 and COM6/AIDI_6 form a group, and