User Manual
TeraHop Networks IMS Installation and Operation Manual V1.1 08-0000-01-R1
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the PDA. You may visually see the RSNs present by selecting the orange Pending tab
on this screen.
20. Terminate the incident.
21. Cycle the power using the ignition switch. Wait for the LEDs on both the MMR and
GS to be blinking mostly off with a short half-second on cycle.
22. Observe the equipment reboot and initiate another incident.
The RSN will now present themselves on the PDA as unassigned resources. If this
fails to produce the desired indication, detailed troubleshooting must be performed.
9.3 Hardware Troubleshooting
This following paragraphs provide an overview of a simple, but effective, method of
troubleshooting. Use this seven-step process when you suspect an equipment failure:
• Gather information
• Understand the malfunction
• Identify which parameters need to be evaluated
• Identify the source of the problem
• Repair the equipment
• Verify the repair
• Perform a Cause Analysis
1. Gather Information
Gathering information is a logical first step when troubleshooting equipment. Ask
about or perform the following:
• Gather all available technical documentation.
• Make certain you understand how the equipment is intended to operate. In other
words, that you have a detailed description of the symptom.
• Review all equipment logs or other records that exist for the equipment.
• Ask if any maintenance has been performed recently.
2. Symptom Recognition
Symptom recognition means that you understand exactly how the equipment
normally operates under these conditions and exactly what the equipment is doing at
this time that is contrary to that normal operation. Make certain you have taken note
of all indicators. Utilize all of your physical senses: hearing, sight, smell, etc. Take
note of anything at all out of the ordinary. This is often considered the most important
of all troubleshooting steps. If symptom recognition is not properly performed, you
may proceed along an error-ridden line of logic, wasting time and experiencing
excessive equipment downtime.