VeEX MPA User Manual page 487

MPA_e_manual_D07-00-129P_RevA00
Protocol Tabs
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 SDH TCM errors and alarms.
•
The SDH TC LEDs window appears in the center of the screen.
The following describes the TCM LEDs that appear when the TC Overhead
Processing is configured for either "Enable" or "HP Enable".
LED
HP-TC-IEC
HP-TC-REI
HP-TC-OEI
HP-TC-RDI
HP-TC-ODI
487
Description
Tandem Connection-Incoming Error Count. Indicates a B3
error count is being received from downstream TCM
equipment. Bits 1-4 of the N1 byte are used for this indicator.
This is an error LED.
Tandem Connection-Remote Error Indication. Indicates that
an error has occurred at the downstream TCM equipment.
The unit is receiving an error. Bit 5 of the N1 byte is used for
this indicator. This is an error LED.
Tandem Connection-Outgoing Error Indication. Indicates that
the unit is sending an OEI error to upstream TCM equipment.
Bit 6 of the N1 byte is used for this indicator. This is an error
LED.
Tandem Connection-Remote Defect Indication. Indicates that
a defect has occurred at the downstream TCM equipment.
The unit is receiving an alarm. Bit 8 in multiframe 73 of the
N1 byte is used for this indicator. This is an alarm LED.
Tandem Connection-Outgoing Defect Indicator. Indicates that
the unit is sending an ODI alarm to upstream TCM
equipment. Bit 7 in multiframe 74 of the N1 byte is used for
this indicator. This is an alarm LED.