Polycom DOC2238A - Manual (Page 126)

Chapter 4 - Hardware Description
4-46
• 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 4-28: ISDN/T1-CAS Network connection for eight spans
• The LAN-IO Card on the rear MGC+ panel connects an IP connection to the
H.323 Network Interface Module.
Figure 4-29: One H.323 Network connection