Nortel SONET AccessNode User Manual page 236

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13-2 List of acronyms
DS3
Digital signal level 3
DSX-1
Digital signal cross connect
FEM
Field expansion module
I/O
Input/Output
IRTU
Integrated remote test unit
LED
Light emitting diode
LCAP
Local craft access power
LIC
Line interface card
MBP
Modular business package
MIC
Maintenance interface card
MPR
Modular power rectifier
MTAC
Metallic test access card
MVOA
Miniature variable optical attenuator
NLIC
Narrowband line interface card
OC-3
Optical carrier signal level 3
OC-12
Optical carrier signal level 12
AccessNode P0904244 Issue 1.0

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