Digi TransPort WR31 User Manual page 247

Configure network interfaces
Reactivate after n secs
The number of seconds a deactivation has to be present before the LAPD instance will try to
reactivate itself.
After X.25 PAD session is terminated
Determines whether the LAPD session is deactivated when an X.25 PAD session is terminated.
Deactivate the LAPD session
Enables automatic deactivation of a LAPD session when an X.25 PAD session is terminated.
Do not deactivate the LAPD session
Ensures the router does not deactivate the LAPD session when an X.25 PAD session is
terminated.
Enable D64S Mode
D64S mode is a mode for using ISDN B-channel(s) without the need to use any D channel
protocol. It is sometimes referred to as nailed-up ISDN. To enable this mode for this LAPD
instance, enable the D64S mode parameter, and make sure the TEI parameter is set to 255. This
means that for any application that uses ISDN (such as. PPP) the application uses D64S mode.
First D64S B-channel
When using D64S mode, there is no dialing protocol to negotiate which B-channel to use. This
must therefore be specified using this parameter. Check the B1 radio button to select channel
B1. Check the B2 radio button to select channel B2 (if another channel is requested from an
application then it will use the other unused B channel).
Digi TransPort WR Routers User Guide
Configure ISDN interfaces
247