Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Control Unit Problems
Page 4-109
100D Module Problems
Figure 4-14. ACCULINK 3150 CSU DTE Loopback Command 4
F1 F2 F3
Loopback:
LLB PLB DLB