Independent Deployment Ai/Di Unit - Huawei ECC500 User Manual

ECC500
User Manual
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3.2.5 Independent Deployment AI/DI Unit

When the AI/DI expansion card installed in the ECC500 has insufficient space for AI/DI data
collection, you can connect an Independent Deployment AI/DI Unit to the AI/DI expansion
card using an RS485 bus. The eight AI/DI input ports on the module can collect more AI/DI
signals. The Independent Deployment AI/DI Unit can be mounted in a 19-inch rack or on a
wall.
Figure 3-7 Front panel of the Independent Deployment AI/DI Unit
(1) DC 15 V power input
port
(4) Cascading ports
Table 3-10
Table 3-10 Description of indicators on the front panel of the Independent Deployment AI/DI
Unit
Silk Screen
PWR
Issue 04 (2019-12-20)
Port Description
 6: D-
 7: D+
 8: GND
 Do not connect an active sensor to an AI/DI port. Otherwise, the port will be invalid.

Sensors including 4 mA to 20 mA sensors, door status sensors, water sensors, and smoke sensors
provide data for the ports.
 The power supply of each AI/DI port can be separately controlled. Each port provides a maximum of
14.6 V, 54 mA output power.
Figure 3-7 shows ports on its front panel.
describes indicators on the front panel of the Independent Deployment AI/DI Unit.
Color
Green
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(2) Indicators
(5) AI/DI_1 to AI/DI_8
Meaning
Power indicator Steady on
3 Configurations and Port
(3) DIP switch
(6) Ground point
Status Description
The power
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