Video Conference Bridge Hardware & Installation Guide

Chapter 4 - Hardware Description
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The IO-4 card connects four PRI/Leased connections from the MGC rear
panel to a Net-4 ISDN/T1-CAS Network Interface Module.
Figure 4-35: ISDN /T1-CAS Network connection for four spans
• The IO-8 card connects eight PRI/Leased connections from the MGC
rear panel to a Net-8 ISDN/T1-CAS Network Interface Module.
Figure 4-36: ISDN/T1-CAS Network connection for eight spans