ADTRAN 1202060L2-1, Руководство пользователя

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Chapter 5. Configuration Menu
61202060L2-1 TSU LT User Manual 5-9
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
INTERNAL
. If the interface cable is long (causing a
phase shift in the data) the clock can be selected as
INT/INV
(Internal/Inverted). This switches the phase of the clock
which should compensate for a long cable. The factory
default setting for this option is
AUTO
. The
AUTO DTE TX
CLK
setting will allow the TSU LT to automatically detect the
delay from the DTE device to the TSU LT and set the proper
phase of the clock. This feature will automatically select
between the
INTERNAL
and
INT-INV
settings. If the DTE
provides a clock with TX data, the clock selection is set to
EXTERNAL
. The TSU LT will depend on an externally
supplied clock to accept the 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