Troubleshooting guide

MX2820 System Manual
5-26 61186003L1-1D
STS-1 MUX MODULE
View the status of an STS-1 MUX module by selecting the following options and selecting the
number for a slot location:
• Select ACCESS MODULES, from the MX2820 Main Menu, and press ENTER.
• Select a number from 1 to 7 (19-inch shelf) or 1 to 9 (23-inch shelf), corresponding to the
desired
STS-1 MUX Module, from the Access Module Menus screen, and press ENTER.
• Select STATUS.
Figure 5-9 shows an example of the status for an STS-1 module in slot location 4. The
following subsections provide descriptions of the fields for this Status screen.
Figure 5-9. STS-1 MUX Module Status Screen Example
Shelf: 1 Slot: 4A ADTRAN MX2820 System 04/21/04 23:05
Unacknowledged Alarms: None TID: HTVLALEXD16
Status
STS-1 State
State = Normal
Alarm = None
Multiplexer State VT/Port State
Alarm = None State = Normal
Protection = None 1 - Detailed VT/Port Status
Card Comm. = Non-redundant
Slot 4A Timing Status
Status = Active External Clock Status = PRESENT
Transmit Clock Source = Free-Run
Slot 4B Sync Status Message = NA
Status = Not Installed
Selection: '?' - System Help Screen