VeEX MPA User Manual page 372

MPA_e_manual_D07-00-129P_RevA00
TCM
SSM
SONET TCM Summary LED
The TCM summary LED indicates if a TCM error or alarm has been detected.
TCM (Tandem Connection Monitoring) is disabled by default, and must be enabled in
order to test for TCM errors and alarms. For SONET processors, the TC Overhead
Processing setting can be Enabled from the Transmit > SET > SET 2 screen. If the
SONET processor is configured for a VT Mapping, then the TC Overhead Processing
menu will allow you to choose between Path Enable or VT Enable.
Quick Status Area LED's that are underlined are "Summary Status" LEDs and can be
selected to display a summary pop-up window to show the individual LEDs, and
sometimes error/alarm statistics, related to that status LED.
•
If the TCM LED is red, select the "TCM" text to display to display a detailed LED
window with all of the SONET TCM errors and alarms.
•
The SONET TC LEDs window appears in the center of the screen.
This is an error LED.
Tandem Connection Status LED. Indicates if a TCM error
or alarm has been detected.
If the TCM Summary LED is red, select the "TCM" text to
display the TCM Summary
The TCM Summary LED only appears when
Error/Alarm Processing
Signal Status Mismatch - Displays when the expected SS
bits setting in the H1 byte do not match what is received. This
is an alarm LED.
SS Bits Alarm Reporting
occur.
LEDs.
is enabled in the Receive settings.
must be enabled for this alarm to
SONET Tab
TC
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