User`s guide

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Default X.25 Packet Size
This parameter specifies the default X.25 packet size to be used for TPAD transactions.
Use NUA
This parameter specifies the X.25 Network User Address to be used for outgoing X.25 calls if
no NUA is specified in the call string.
Use NUI
This specifies the X.25 Network User Identifier to be used for outgoing X.25 calls if no NUI is
specified in the call string.
LCN
The unit supports up to eight logical X.25/TPAD channels. In practice, the operational limit
is determined by the particular service to which you subscribe (usually 4).
Each logical channel must be assigned a valid Logical Channel Number (LCN). The LCN
parameter is the value of the first LCN that will be assigned for outgoing X.25 CALLs. The
default is 1027. For incoming calls, the unit accepts the LCN specified by the caller.
LCN direction
This parameter determines whether the X.25 LCN used for outgoing TPAD calls is
incremented or decremented from the starting value when multiple TPAD instances share
one layer 2 (LAPB or LAPD), connection. The default is “DOWN” and LCNs are decremented,
i.e. if the first CALL uses 1024, the next will use 1023, etc. Setting the parameter to “UP”
will cause the LCN to be incremented from the start value.
On the backup interface
Use NUA
The LCN parameter is used to set the first LCN that will be used for the backup
interface.
Use NUI
This specifies the X.25 Network User Identifier to be used for outgoing X.25 calls if
no NUI is specified in the call string for the backup interface.
LCN
The LCN parameter is used to set the first LCN that will be used for the backup
interface.
LCN direction
This parameter determines whether the LCN used for the backup X.25 interface is
incremented or decremented from the starting value when multiple X.25 instances
share a single layer 2 connection.
Report our NUA as n to the X.25 network
This is the NUA that the unit will report to the X.25 network as its own NUA when making a
call. It is also known as the calling NUA. Often the X.25 network will override this NUA.
Call User Data
This specifies a text string that will be placed in the Call User Data field of an outgoing X.25
call request packet. Whether or not this information is required will depend on the X.25 host
that you are connecting to. In most cases the information is not required.
X.25 calls
These setting control how transactions are sent to the host when TPAD is running in “direct
mode”.
One per transaction
Only one transaction is allowed per call.