Protocol Tabs
487
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
Description
HP-TC-IEC
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.
HP-TC-REI
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.
HP-TC-OEI
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.
HP-TC-RDI
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.
HP-TC-ODI
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.
MPA_e_manual_D07-00-129P_RevA00
Summary of Contents for MPA
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