4.1 H304ESC EMU
This topic describes the function and front panel of the H304ESC environment monitoring unit
(EMU), and provides the specifications of the H304ESC EMU.
Function
The H304ESC EMU monitors the environment parameters (smoke, water, door status, MDF,
temperature, and humidity) of the entire device, and provides extended monitoring ports.
Front Panel
shows the front panel of the H304ESC EMU.
Figure 4-1
Front panel of the H304ESC EMU
Front Panel Description
The front panel of the H304ESC EMU has one running status LED and one buzzer switch.
describes the running status LED.
Table 4-1
Running status LED
Name
Status
Description
RUN
On for 1s and off for 1s
repeatedly
The EMU works in the normal
state
0.5s on and 0.5s off repeatedly The EMU is faulty
describes the buzzer switch.
Table 4-2
Buzzer switch
Name
Status
Description
Buzzer switch
ON
The communication between the monitoring
unit and the host is normal
OFF
The communication between the monitoring
unit and the host is faulty
UA5000 Universal Access Unit
Environment Monitoring
4 H304ESC Monitoring Solution
Issue 01 (2012-08-17)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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