ADTRAN TSU LT, Руководство пользователя

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TSU LT User Manual Chapter 5 Config Menu
61203060L1-1A © 2003 ADTRAN, Inc. 45
START CHAN Sets the starting channel for the T1 stream. This setting must be consistent with the
carrier if using a public network.
Choices: 01 through 24
# OF CHAN
Sets the number of DS0s (channels) to be used. The corresponding DTE rate will be
this number times 56K or 64K, depending on the setting of
1)R
ATE
56/64
.
Choices: 01 through 24
DATA Controls the inversion of 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
CTS Clear To Send - signal sent from the receiving station to the transmitting station that
indicates it is ready to accept data.
Choices: NORMAL (see Table 5-2 on page 46), FORCE ON
DCD Data Carrier Detect - Indicates to the DTE when a valid signal is being received at
the Network Interface.
Choices: NORMAL (see Table 5-2 on page 46), FORCE ON
DSR
Data Set Ready - Indicates to the DTE when the DCE is turned
O
N
and ready for
operations.
Choices: NORMAL (see Table 5-2 on page 46), FORCE ON.
INBAND Inband Configuration Channel - Use to enable/disable an 8-kbps remote
configuration channel (see Figure 5-7 on page 46). When this option is set to
O
N
, the
first DS0 occupied operates in 56K mode and the DTE clock rate is reduced by
8 kbps. The TSU LT uses this 8-kbps channel to send and receive configuration data
across a T1 span. As shown in Figure 5-7, this feature allows the PC connected to
the Chain In port on TSU LT A to monitor and configure both TSU LT A and B.
This feature is useful when FDL connectivity is not available across the T1 span.The
8-kbps channel is only taken out of the first DS0. If two 64K DS0s are mapped, the
DTE rate would be 120 kbps instead of 128 kbps.
This menu option can also be set to
A
UTO
which activates the Inband Channel only
when commands are sent from T-Watch PRO to the remote unit (TSU LT B in
Figure 5-7). If no T-Watch PRO activity is detected for 10 minutes, the Inband
Channel is deactivated.