Escm Being In Fault State - Huawei SmartAX MA5612 Maintenance Manual

SmartAX MA5612 Multi-service Access Module
Maintenance Guide

7.1 ESCM Being in Fault State

The ESCM is an environment monitoring unit (EMU) that integrates the environment monitoring
board, terminal blocks, and DIP switches. The ESCM monitors the environment parameters of
the device. This document provides the troubleshooting guide when the ESCM is in Fault state.
Location Method
The ESCM is displayed as MINIESC on the MA5612 interface. When the ESCM is in Fault
state, locate the fault according to the following procedure:
1.
2.
3.
4.
To facilitate fault report, save the results of the following steps.
Procedure
Step 1 Run the display serial-mode command to check whether the serial port mode of the device is
emu.
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Step 2 Run the serial-mode emu command to set the serial port mode to emu. Run the display emu
command to check whether the ESCM is in Normal state.
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Step 3 Check whether the sixth switch of the DIP switch on the ESCM is set to on.
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Step 4 When the serial port mode of the MA5612 is emu, the baud rate of the serial port is 19200 bit/
s. In this case, set the sixth switch of the DIP switch on the ESCM to on and the baud rate to
19200 bit/s that is the same as the baud rate of the serial port on the MA5612. Run the display
emu command to check whether the ESCM is in Normal state.
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Issue 01 (2012-07-25)
Check whether the serial port mode of the MA5612 is emu.
Check whether the sixth switch of the DIP switch on the ESCM is set to on (the baud rate
is 19200 bit/s).
Check whether the dedicated environment monitoring cable connecting the ESCM to the
serial port on the MA5612 is faulty.
Check whether the settings of the DIP switch on the ESC board are the same as the settings
of the secondary nodes of the EMU on the MA5612.
CAUTION
If the serial port mode of the device is emu, go to
If the serial port mode of the device is not emu, go to
If the ESCM is in Normal state, it indicates that the fault occurs due to the improper serial
port mode. Go to Step
If the ESCM is not in Normal state, go to
If the sixth switch of the DIP switch on the ESCM is set to on, go to
If the sixth switch of the DIP switch on the ESCM is not set to on, go to
If the ESCM is in Normal state, go to
If the ESCM is not in Normal state, go to
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7 Troubleshooting EMU Faults
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