The MIB Module for DS3/E3 interface 
configuration , statistics and Alarm 
configuration.

This MIB is supported in T3/E3 service modules
in MGX products. 
Some of the T3/E3 service modules(Cards) are:

 PXM1     : Processor Switch Module.
 CESM-T3E3: Circuit Emulation Service Module
 FRSM-VHS : Frame Relay Service Module. Includes
            T3 and Channelized T3 categories.
 FRSM-2CT3: Channelized FRSM Module
 SRM-3T3  : Service Resource Module

Terminologies Used :

  SDH     : SONET Digital Hierarchy
  PLCP    : Physical Layer Convergence Procedure.
  BERT    : Bit Error Rate Testing.
  FEAC    : Far End Alarm Code.
  OOF     : Out Of Frame.
  AIS     : Alarm Indication Signal.
  LOF     : Loss Of Frame.
  RAI     : Remote Alarm Indication.
  
  HCS     : Header Check Sequence
  HEC     : Header Error Control

  MA byte : Maintenance and Adaptation byte

  Tx MA Byte: This is explained in ITU-T G.832
              This Byte contains following fields:
                Payload type
                Payload dependent bits
                Timing maker bit
       
  Rx MA Byte: This is explained in ITU-T G.832
              This Byte contains following fields:
                Payload type
                Timing maker bit