Multitech MMH900 User Manual page 101

Table 7-1. Troubleshooting Guide
The following symptoms are typical of problems you might encounter:
• Supervisory Console not communicating with mux command
port
• Supervisory Console not communicating with command
modem
• Garbage on Supervisory console screen
• Composite Link down with CTS, XMT and REMOTE DWN
LEDs ON
• Composite Link down with CO, CTS, XMT and RCV LEDs
ON and REMOTE DWN LED ON
• Composite link down with CO CTS and REMOTE DWN
LEDs ON
• Composite link and all channels down with REMOTE DWN
and all channel RCV LEDs ON
• Flashing LINK ALARM LED
• All channel devices not communicating with mux, composite
link up with CO, CTS,XMT and RCV LEDs ON and
REMOTE DWN OFF
• Some channel devices not communicating with MultiMux
and composite link up
• Channel device losing data
Note: If you continue to have difficulty after applying the solutions
to these problems (found on pages 123-126), contact
Technical Support for assistance, refer to Chapter 8.
Chapter 6 - Operating Procedures
101