ADTRAN TSU ACE, Manual

Page: 54 / 88

Chapter 5. Configuration Menu
5-6 TSU ACE User Manual 61200295L1-20
Port
The menu item PORT is used to select and configure the parameters
associated with the V.35.
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 alternate or contiguous channels in the T1
data stream. If more than 12 channels are used, then contiguous must
be used. If not, then alternate channels may be used to meet pulse den-
sity 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 ACE 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 ca-
ble.
The factory default setting for the
DTE TX CLK
option is
AUTO
. The
AUTO DTE TX CLK
setting will allow the TSU ACE to automatically de-
tect the delay from the DTE device to the TSU ACE 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 ACE will depend on an externally supplied
clock to accept the TX data.
Choices: INTERNAL, INT-INV, EXTERNAL, AUTO