Slot Card Specifications and Connection Information
STM-0 card
MAX TNT Hardware Installation Guide A-25
Status lights
All status lights except HG_SYNC illuminate upon startup or restart, and remain illuminated
until the card passes its POST. During normal operation, only the HG_SYNC light remains
illuminated.
Table A-20 explains the STM-0 card status lights.
Rx sensitivity -8dBm maximum, -32.5dBm minimum, 9/12µm fiber
Loss budget 18.5dBm
Frame format STM-0 with VC-3, tributary unit group 2 (TUG-2), and
VC-11 mapping
Alarm signaling Receive line: reception of bad frame (REC) or AIS
Generate line: backward AIS (BAIS)
Receive line: VC-3 REC or AIS
Generate line: VC-3 BAIS
Receive line:VC-11 REC or AIS
Generate line: VC-11 BAIS
Receive line: HG REC or AIS
Generate line: HG BAIS
Table A-19. STM-0 card specifications (continued)
Category Specification
Table A-20. STM-0 card status lights
Light Color In on, indicates:
RALM Red All path alarms. Can mean any of the following:
• Path loss of pointer (LOP)
• Path alarm indication signal (AIS)
• Path remote defect indication (RDI)
• Loss of multiframe (LOM)
LRDI Red Line remote defect indication. The STM-0 slot card received an
alarm from an upstream device that detected the alarm.
LAIS Red Line alarm indication signal. The STM-0 slot card received an
alarm from a downstream device that detected the failure.
LOS Red Loss-of-signal condition on the STM line. The STM slot card
has detected all zeros on the line.
LOF Red Loss-of-frame condition on the STM-0 line. The STM-0 slot
card has detected the absence of a valid framing
pattern on the line for 3ms or more.
OOF Red Out-of-frame condition on the STM-0 line. The STM-0 slot
card has detected absence of a valid framing pattern on the line.
To Next Page
Loading...
