MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Figures
Page xi
Figures
1 Introduction
1-1 Setting Up the MLX-20L Console 1-5
1-2 Setting Up the PC 1-6
1-3 External Modem Setup 1-8
1-4 The SPM Display 1-15
1-5 Removing the Control Unit Housing 1-19
1-6 Disconnecting AC Power 1-20
1-7 Maintenance Strategy 1-22
4 Control Unit Problems
4-1 Power Supply Interlocking Post 4-4
4-2 Replacing a Ring Generator 4-7
4-3 Replacing an Auxiliary Power Supply 4-9
4-4 Inserting a Memory Card 4-21
4-5 Replacing the Feature Module 4-33
4-6 Module Test Process 4-35
4-7 Inserting the Upgrade Memory Card 4-66
4-8 551 T1 CSU Loopback Connection 4-104
4-9 ESF T1 CSU DTE Loopback Connection 4-104
4-10 ACCULINK 3150 CSU Front Panel 4-105
4-11 ACCULINK 3150 CSU DTE Loopback Command 1 4-105
4-12 ACCULINK 3150 CSU DTE Loopback Command 2 4-105
4-13 ACCULINK 3150 CSU DTE Loopback Command 3 4-106
4-14 ACCULINK 3150 CSU DTE Loopback Command 4 4-106