KBU 64
User Manual
80-10100000-09
4–14
LOOP
- Can also be used when you always wish to detect your own
data for purposes of restoral. You can set LOOP ‘ON’ permanently
for this purpose, when it will automatically be dropped upon sending
data.
3. RXDATA - when set, monitors the line for any transition. When
‘RESTORE’ is set to AUTO, an automatic restore is performed when
a transition is detected, providing that transitions are still detected
within both the DATALOSS and RESTORE time delay settings.
However, it is necessary to set ‘DELAY RESTORE’ to a greater
value than ‘DELAY DATALOSS’ for this to function (the default
setting of ‘DELAY DATALOSS’ is 0 seconds). As the default setting
for ‘DELAY RESTORE’ is 3 seconds, it may be necessary to set
DELAY RESTORE set to a longer period depending on the required
DATALOSS timeout (the acceptable range is 0 - 999 seconds).
4.9 Setting the USER Port Interface Characteristics
(RA)
Both USER port interfaces must be set to CCITT ‘X’ type (X21 etc.) or ‘V’
type (V35 etc.) interface characteristics, using the RA command. By
default these are defined as using the ‘X’ type characteristics.
To check the current setting for this parameter, from either command
line prompt, type;
STATUS
[CR].
The current definitions are shown on the “INTERFACE” line.
To alter the existing setting:
1> SET RA n
[CR]
2> SET RA n
[CR]
where
n
= X or V.
When set to
X
, control to indicate functions are transferred for speeds at
or below 56Kbit/s. When set to V, this provides V24 or V35 control
signal transfer facilities over the ISDN link for speeds at or below
56Kbit/s. These are RTS to remote DCD, and DTR to remote DSR.
