Verilink C100 (880-502893-001) Product Manual - Manual (Page 66)

Configuring the C100/C150 Using the Console Port
6-4 Verilink C100 and C150 T1/FT1 CSU/DSU 6/15/99
Programming the Network Interface
NI framing This selection determines the type framing. With ESF selected, the unit
generates and expects ESF framing to and from the Network Interface.
Pressing Enter displays D4 and the unit generates and expects D4
framing. The framing selected in the unit must match the framing
option provided by the T-1 Carrier.
NI coding This field selects the type of coding the unit generates. When B8ZS is
displayed, the unit generates B8ZS encoding. Pressing ENTER sets the
line coding to AMI encoding. This coding selection must match the
provisioning provided by the T-1 Carrier supplier or remote end,
otherwise intermittent errors can occur.
Density The Density selection determines whether the unit enforces ones
density to the Network or operate in the Clear Channel mode. When
the word Enabled is displayed, the unit enforces density. This means
that data from the Channel and/or DSX-1 port being transmitted to
the Network must meet the ones density requirements specified in
62411 and T1.403 (approximately 1 in every 8 bits must be a one and no
more than 15 consecutive zeros). If the data from the channels violate
density, the T-1 CSU/DSU, with this field enabled, puts ones in the
output data, inserting logic errors in the customer data
With Clear selected, the unit lets data from the Customer pass to the
Network transparently. If the facility provided by the T-1 Carrier is not
Clear Channel and this Clear Channel option is selected, the Customer
experiences data errors.
AT&T or ANSI This field determines whether the unit is compatible with the AT&T
54016 Reference 54016 or ANSI T1.403 ESF Data Link messages. With
62411 displayed, the unit is compatible with the AT&T 54016 ESF
specification.
With AINSI T1.403 displayed, the unit is compatible with the T1.403
specification. As with the preceding selections, this option must match
the requirements of the T-1 Carrier provider.