Verilink APS 2000 T1 Line Protection (880-502411-001) Product Manual User Manual
Page 42
Configuration
3-14
Verilink APS 2000 User Manual
M) distance
Cable length option,
used to increase DSX-
1 signal strength
when DSX-1 cable is
long.
Choices are: (1)0-133 (2)133-266 (3)266-399 (4)399-533
(5)533-655, select the value that most nearly equals the
length of the cable between the CSU and the local DSX-1
equipment.
L) lbO
Line build out is used
to reduce the signal
strength being sent
to the T1 network.
New T1 circuits
installed by a
telephone company
in the USA will have a
smart jack, use 0db.
(1) 0 db — use this value if a smart jack (network
termination device) has been installed by the telephone
carrier, or if the first active device on the T1 is between
2,000 and 3,000 feet away.
(2) 7.5 db — use this value only if there is no smart jack and
the first repeater is 1,000 to 2,000 feet away.
(3) 15 db — use this value only if there is no smart jack and
the first repeater is zero to 1,000 feet away.
K) aps control
Selects the mode for
the Automatic
Protection Switch
function.
See the section "
below.
T) alm thld
Selects enabling or
disabling thresholds.
(1)disable — Alarm threshold function is shut off.
(2)default — Default values for alarm thresholds are
enabled.
Z) density
Selects density
enforcement
technique.
Density should
always be set to
NONE on a B8ZS T1,
B8ZS allows a full
64K per DS0.
Density should never
be set to NONE on an
AMI T1.
(1)NONE — no density enforcement, use this value only and
always on a B8ZS T1.
(2)12 — The CSU begins stuffing ones into the user
datastream after 12 consecutive zeroes.
(3)62411— The CSU enforces AT&T publication 62411
density restrictions (average 12.5% minimum ones density).
(4)80 0's — The CSU begins stuffing ones into the user
datastream after 80 consecutive zeroes (recommended).
(5)15 0's — The CSU begins stuffing ones into the user
datastream after 15 consecutive zeroes.
C1-C5) canned
config
Allows selection of
any of five complete
configurations which
vary according to
framing and line
coding on Equipment
and Network sides.
Canned configuration #1, EQPT=SF/AMI NET=ESF/AMI.
Canned configuration #2, EQPT=ESF/AMI NET=ESF/AMI.
Canned configuration #3, EQPT=SF/AMI NET=ESF/B8ZS.
Canned configuration #4, EQPT=SF/B8ZS NET=ESF/B8ZS.
Canned configuration #5, EQPT=ESF/B8ZS NET=ESF/B8ZS.
Menu Option
Description
Instructions