Verilink AS100 (896-502379-001) Product Manual - Manual (Page 35)

Configuration Parameters
Access System Centum Series User Manual 3-11
If the NI is not Clear, steps must be taken to ensure the proper “ones
density” in the data presented to the network. If this is not done,
Centum Series may occasionally damage user data in order to satisfy
network requirements. There are three methods that can be used to
ensure ones density in the data:
• Limit the user data to 56 kbps per DS0. Centum Series will use
the remaining 8 kbps (in each DS0) to provide the required
density.
• Allow 64 kbps user data in each DS0 and use alternate DS0s.
Keep the intervening DS0s idle to provide the density. See
Alt/Consec below (items #14 and #21). This method wastes
significant bandwidth and should only be used when absolutely
necessary.
• Allow 64 kbps user data in each DS0 when the user’s protocol
provides the required density. See Data Norm/Inv below
(item s#16 and #23).
When the 56/64 decision has been made, repeatedly SELECT until
the desired data rate is displayed on the left side of the LCD panel
AND the correct DS0 quantity is displayed on the right side. Select
N/U if the Serial Port will not be used.
CAUTION
In some cases, the same data rate can be achieved with two different
DS0 quantities, one with 56 kbps DS0s and the other with 64 kbps
DS0s.
14. Serial Port #1 DS0 assignments.
[21. Serial Port #2 DS0 assignments]
This selection determines which specific DS0s within the T1 stream
will support the Serial Port.
!
Serial Port #1 (or 2)
First DS0: XX
DOWN to
display: