User guide

Chapter 11: Board Configuration
MAXCS ACC 6.7.1 Administration Manual 123
Figure 68. E1 CAS Protocol Configuration dialog box (top half)
Selecting Span Types
• E1 CAS – select this option to associate all channels on the span to E1 channel
associated signaling.
• Regular ISDN PRI – select this option to indicate 30B+D ISDN PRI span and to
designate the 16th channel as the D channel.
• Enable Tie Trunk – check this box to enable a tie trunk. Tie trunks must terminate
to a system also configured as a tie trunk.
Note: This option not available when T1 CAS is selected.
Setting the ISDN PRI Switch Mode
If you select a Span Type of Regular ISDN PRI in the T1 PRI Configuration Window, use
the following guidelines to set the ISDN PRI Switch mode.
Figure 69. T1 PRI Switch Mode
The top four settings are used for a connection to a CO switch:
• AT&T 4ESS PRI