Filter
Top Products
AI2524 Router Card User’s Manual
Page 14-2 August 1997
2524UM
To guarantee the ones density requirement on an AMI line using th
FT1/T1 CSU/DSU module, type this in interface configuration mode:
service-module t1 data-coding inverted
This command inverts bit codes by changi ng all 1 bits to 0bits and all
0 bits to 1 bits.
If the timeslot speed is se t to 56kbps, this command is rejected be-
cause line density is guaranteed when transmitti ng at 56kbps. Use this
command with the 64 kbps line speed. If you transmit inverted bit
codes, both CSU/DSUs must have this command configured for suc-
cessful communication.
To enable normal data transmission on a FT1/T1 network, type this in
interface configuration mode:
service-module tx1 data-coding normal
or
no service-module t1 data-coding inverted
Specify the Frame Type of a FT/T1 Line
To specify the frame type for a line using the FT1/T1 CSU/DSU mod-
ule, type this in interface configuration mode:
service-module t1 framing {sf | esf}
Note: Choose either D4 Super Frame (sf) or Extended Super
Frame (esf).
In most cases, the service provider determines which framing type, ei-
ther
esf
or
sf
, is required for your circuit.
Specify the CSU Line Build Out
To decrease the outgoing signal strength to an optimum value for the
telecommunication carrier network, type this in interface configura-
tion mode:
service-module t1 lbo {-15 db | -7.5 db}
This command decreases the outgoing signal strength in decibels.