MT9076
8.2.5 Interframe Time Fill and Link Channel States ................................................................................ 37
8.2.6 Go-Ahead ....................................................................................................................................... 37
8.3 HDLC Functional Description.................................................................................................................37
8.3.1 HDLC Transmitter........................................................................................................................... 37
8.3.2 HDLC Receiver............................................................................................................................... 38
9.0 Slip Buffers .................................................................................................................... 40
9.1 Slip Buffer in T1 Mode............................................................................................................................40
9.2 Slip Buffer in E1 mode............................................................................................................................42
10.0 Framing Algorithm ........................................................................................................ 43
10.1 Frame Alignment in T1 Mode.................................................................................................................43
10.2 Frame Alignment in E1 mode.................................................................................................................44
10.2.1 Notes for Synchronization State Diagram (Figure 16).................................................................... 46
10.3 Reframe..................................................................................................................................................46
10.3.1 E1 Mode ........................................................................................................................................ 46
10.3.2 T1 Mode ......................................................................................................................................... 46
11.0 MT9076 Channel Signaling........................................................................................... 46
11.1 Channel Signaling in T1 Mode ...............................................................................................................46
11.2 Channel Signaling in E1 Mode...............................................................................................................47
12.0 Loopbacks ..................................................................................................................... 48
13.0 Performance Monitoring............................................................................................... 49
13.1 Error Counters........................................................................................................................................49
13.2 T1 Counters............................................................................................................................................49
13.2.1 Framing Bit Error Counter (FC7-0)................................................................................................. 49
13.2.2 Out Of Frame / Change Of Frame Alignment Counter (OOF3-0/COFA3-0) .................................. 49
13.2.3 Multiframes out of Sync Counter (MFOOF7-MFOOF0).................................................................. 50
13.2.4 CRC-6 Error Counter (CC15-0)...................................................................................................... 50
13.2.5 Line Code Violation Error Counter (LCV15-LCV0)......................................................................... 50
13.2.6 PRBS Error Counter (PS7-0).......................................................................................................... 50
13.2.7 CRC Multiframe Counter for PRBS (PSM7-0)................................................................................ 50
13.3 E1 Counters ...........................................................................................................................................50
13.4 Errored FAS Counter (EFAS7-EFAS0) ..................................................................................................50
13.5 E-bit Counter (EC15-0)...........................................................................................................................51
13.6 Line Code Violation Error Counter (LCV15-LCV0).................................................................................51
13.7 CRC-4 Error Counter (CC15-0)..............................................................................................................51
13.8 PRBS Error Counter (PS7-0) .................................................................................................................51
13.9 CRC Multiframe Counter for PRBS (PSM7-0)........................................................................................51
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MITEL [ MITEL NETWORKS CORPORATION ]
