Huawei SmartDC V100R021C10 User Manual page 39

ECC800 Data Center Controller
User Manual
Item
Installation
requirement
s
Environmen
tal
protection
Technical Specifications
Table 3-18 Technical specifications of the UIM20A expansion module
Item
Power input
COM/AIDI (RJ45)
POE
E-label 4.0
Communications Ports
The following table describes the pin definitions for ports COM1/AIDI_1 to COM8/
AIDI_8.
Table 3-19 Pin definitions for ports COM1/AIDI_1 to COM8/AIDI_8
Item
Pin
sequence
Issue 04 (2021-10-09)
Specifications
Installed in a 19-inch rack
RoHS5
Specifications
Supports the RS485 or PoE power supply.
● 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
COM7/AIDI_7 and COM8/AIDI_8 form a group).
● The 12 V DC power supply can be switched on or off
and is on by default.
Connects to the ECC800-Pro through the PoE port.
Supported
Description
Pin1 RS485+
Pin2 RS485-
Pin3 12V
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3 Device Description
27