User's Manual

User Reference and Installation Guide 6-14
© 2006 Microwave Data Systems Inc. All Rights Reserved. MDS FOUR.9 Series
05-4561A01, Rev. A
Alarm
Affected
Component
Description
LED to
RED
Alarm
Code
Severity
STM LP-RFI
lkm
IDU The SDH/SONET Mux/Demux
LP number ‘x’ has a Remote
Fault Indication. Fault detection
via polling of LP_RFI_T bit in
STM-1 Core. Where ‘lkm’ is the
LP index as LKM numbering.
Alternate detection via Interrupt
enabled in STM-1 core.
N/A Solid Critical
STM LP-BIP2
lkm
IDU The SDH/SONET Mux/Demux
LP number ‘x’ has a CRC Error.
Fault detection via polling of
LP_BIP2_T bit in STM-1 Core.
Where ‘lkm’ is the LP index as
LKM numbering. Alternate
detection via Interrupt enabled in
STM-1 core.
N/A Solid Major
6.2 Abbreviations & Acronyms
AIS Alarm Indication Signal
BER Bit Error Rate
Codec Coder-Decoder
CPU Central Processing Unit
DB Decibel
DBm Decibel relative to 1 mW
DCE Data Circuit-Terminating Equipment
DTE Data Terminal Equipment
EIRP Effective Isotropic Radiated Power
FCC Federal Communications Commission
FEC Forward Error Correction
FPGA Field Programmable Gate Array
GPIO General Purpose Input/Output
IF Intermediate frequency
IP Internet Protocol
LED Light-emitting diode