PDH Tabs
310
FTB-8100 Series Transport Blazer
E1/2M RX
E1/2M RX
Press
Main
,
Test
,
DSn/PDH
,
E1
, and
E1 RX
.
Configuration
Note:
See
E1/2M TX
on page 307 for more information on
Framing
.
Error Analysis
³
FAS
(Frame Alignment Signal): A FAS error indicates that bits 2 to 8 of
the frame containing the FAS differ from 0011011.
³
CRC-4
(Cyclical Redundancy Check): A CRC-4 error indicates that one
or more bit errors are detected in a block of data through cyclical
redundancy check.
³
E-Bit
(CRC-4 Error Signal): A E-Bit error indicates that bit 1 of
sub-multiframe (SMF) II in frame 13 and/or 15 is set to 0 indicating a
sub-multiframe error.
Содержание FTB-8100 Series
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