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T3SU 300 scrambler options

T3SU 300 scrambler options

Article ID: 1527

  T3SU 300 scrambler options

Q: T3SU 300 scrambler options

A: There are two scrambling options available for each multiplexing mode (75kbps block size or 3.158 Mbps block size):

75 kbps block size (Adtran standard):

2047                     This is an Adtran proprietary scrambler.  On 1st generation models, choosing Enable for scrambling used this mode.
1+x^43 The ATM scrambler

3.158 Mbps (Larscom standard):

x^11+x^9+1          This is an Adtran proprietary scambler.  It is the same as 2047 scrambling.  On older firmware versions of first generation units, choosing Enabled for the scrambler chose this mode.
x^20+x^17+1 The Larscom equivalent scrambler.  If you are terminating into a device other than the T3SU such as an ISP Cisco router, use this scrambling if the carrier wishes to have scrambling enabled.

Version history
Revision #:
1 of 1
Last update:
‎02-28-2012 11:34 AM
Updated by: