55
CHAPTER 6: Troubleshooting
6. Troubleshooting
6.1 Overview
The MiniStat-Four diagnostics functions use a full set of test loops and the
front-panel indicators to rapidly identify faults that affect system operation.
The test loops available for diagnostics and test purposes are:
• Local loops:
1. Local sub-channel loop.
2. Local composite channel loop.
• Remote loops:
1.
Remote sub-channel loop.
2.
Remote composite channel loop.
• Modem loops:
1.
Analog loop.
2.
Remote digital loop (available if supported by composite-channel
modem).
The various test loops are identified in Figure 6-1 on the next page and are
described in detail in
Section 6.2
.
If the problem is still unidentified after you perform these loops, see
Section 6.3
.
