Port - ADTRAN TSU LT User Manual

TSU LT User Manual

Port

The menu item is used to select and configure the parameters associated with the V.35/V.11 port.
P
ORT
RATE 56/64
This sets the base rate of the interface. The actual data rate depends on the number of DS0s assigned
to the Nx port. The DTE data rate vs. the number of DS0s appears in the appendix DTE Data Rate
Chart.
Choices: 56K, 64K
CHANNELS
This sets the unit to use
channels are used, then
meet pulse density requirements (only necessary for Nx 64 without B8ZS). If other than a private
network, the carrier must be notified of this choice.
Choices: ALT (alternate), CONT (contiguous)
DTE TX CLK
Controls the clock used by the TSU LT to accept the transmit (TX) data from the DTE. Most
applications will allow for this to be set to
shift in the data) the clock can be selected as
clock which should compensate for a long cable. The factory default setting for this option is
The
A DTE TX CLK
UTO
device to the TSU LT and set the proper phase of the clock. This feature will automatically select
between the
I
NTERNAL
selection is set to
E
TX data.
Choices: INTERNAL, INT-INV, EXTERNAL, AUTO
START CHAN
Used to select the channel in which the T1 stream will start. The setting must be consistent with
carrier if using a public network.
Choices: 01 through 24
# OF CHAN
Used to select the number of DS0s (channels) that are to be used. The corresponding DTE rate will be
this number times 56K or 64K, depending on Port Option number 1.
Choices: 01 through 24
DATA
Used to control the inverting of the DTE data. This inversion can be useful when operating with an
HDLC protocol. Often used as a means to ensure ones (1s) density. TSU LTs on both ends must have
identical option settings.
Choices: NORMAL, INVERT
61202060L4-1
or
A C
LTERNATE ONTIGUOUS
must be used. If not, then
C
ONTIGUOUS
setting will allow the TSU LT to automatically detect the delay from the DTE
and settings. If the DTE provides a clock with TX data, the clock
I -I
NT NV
. The TSU LT will depend on an externally supplied clock to accept the
XTERNAL
© 2002 ADTRAN, Inc.
channels in the T1 data stream. If more than 12
A
LTERNATE
. If the interface cable is long (causing a phase
I
NTERNAL
(Internal/Inverted). This switches the phase of the
I -I
NT NV
Chapter 5. Configuration Menu
channels may be used to
A
.
UTO
49