Cabletron Systems KBU 64, Руководство пользователя

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Configuration Commands
80-10100000-09 4–29
xx
is NORMAL or FORCED
For speeds below 64Kbit/s, control signals are transferred across the
ISDN backup link, and the output of I/DSR to the USER port is
dependent on the C/DTR input at the remote KBU 64.
When set to NORMAL, I/DSR is dependent on C/DTR at the remote
KBU 64.
Where control signals are not transferred, the I/DSR output signal is
inactive.
When set to FORCED, the I/DSR signal is always active during an ISDN
backup.
This is the default setting and it is recommended for all
applications.
4.13.11 Front Panel Backup Buttons
The front panel buttons provide manual control of back up and
restoration of each channel.
When a button is pressed the relevant channel will attempt a backup
call. If the button is pressed again while the backup call is in progress,
the ISDN line will be dropped and the KBU will attempt line restoration.
Successful backup and restoration will depend on the dedicated line
status together with other parameter settings such as BACKUP,
RESTORE and some delay settings.
1> SET BUTTON xx
[CR]
where
xx
is OFF or ON
The factory default for this parameter is ON.
4.14 Using the Alternate Number Redialling Facility
We have already explained in section 4.13.1 that the telephone number
of the remote KBU 64 is held in the STORE parameter of your KBU’s
configuration.