Honeywell International Inc. WLUWIFIM010 Manual De Usuario
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HIF-1472R6(1)
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18 dBm output
3 dB cable loss
{
5 dB antenna gain
ERP = 20 dBm
Figure 11-1 Example ERP of the WLU with Sensor System Wi-Fi antenna
12.
FAULT ISOLATION
12.1.
General
This section describes the built-in test equipment (BITE) function for the WLU.
System BITE contributes to a number of maintenance functions:
Detection of internal and external faults
Reporting failure status in the air and on the ground
Ground test capability for isolating faults, performance verification, and system level testing.
12.2.
Fault Detection
The WLU detects faults using continuous monitors in all system modes where the fault is
detectable. The WLU continuously monitors for internal hardware, software and interface faults and
sends fault messages via WLAN Manager, when they occur.
The WLU automatically detects each fault condition that causes either:
detectable. The WLU continuously monitors for internal hardware, software and interface faults and
sends fault messages via WLAN Manager, when they occur.
The WLU automatically detects each fault condition that causes either:
One or more digital output signals to be identified as failed or invalid
Loss or significant degradation in other outputs to other systems.
Loss or significant degradation in other outputs to other systems.
A fault is defined and set for each of the test components. Fault Monitor Data may include up to 600
characters of free text to add details relevant to failures. The continually monitored tests cover the
following components:
characters of free text to add details relevant to failures. The continually monitored tests cover the
following components:
Power Supply (fault if power supply output is outside accepted range)
Processor (fault if processor error or overheat condition occurs)
Memory (volatile and non-volatile, fault if memory error occurs)
Software execution (fault is software error occurs)
Configuration (fault if configuration is corrupted)
Processor (fault if processor error or overheat condition occurs)
Memory (volatile and non-volatile, fault if memory error occurs)
Software execution (fault is software error occurs)
Configuration (fault if configuration is corrupted)