Polycom DOC2238A 사용자 설명서

The Functional Modules (cards) perform the various audio, video, and data 
processing functions for the MGC+ unit. Both the MGC+100 and the 
MGC+50 use the same functional modules. 

The MGC+100 unit houses up to sixteen Functional Modules, which can 
occupy slots 1 through 16.

The MGC+50 unit houses up to eight Functional Modules, which can occupy 
slots 1 through 8.

The LED’s on the front of each Functional Module indicate the status of 
operation and whether it is functioning properly. Functional Modules are 
installed via the front panel of the MGC+ unit. A connector at the rear of each 
functional module connects the module to the backplane. Any module can be 
inserted into any slot. All Functional Modules are front-removable and hot 
swappable.

Table 4-5 lists the available Functional Modules.

Net-2 ISDN/T1-CAS 
Network Interface

Interfaces between the 
MGC+ unit and the ISDN 
network or T1-CAS lines.

46 channels/60 ISDN 
channels or 48 T1-CAS 
channels 

Net-4 ISDN//T1-CAS 
Network Interface

Interfaces between the 
MGC+ unit and the ISDN 
network or T1-CAS lines.

92 channels/120 ISDN 
channels or 96 T1-CAS 
channels

Net-8 ISDN/T1-CAS 
Network Interface

Interfaces between the 
MGC+ unit and the ISDN 
network or T1-CAS lines.

184 channels/240 
ISDN channels or 192 
T1-CAS channels

Perform signaling and 
capabilities exchange for 
conferencing. Encrypted 
conferences with IP 
participants, SIP sessions 
and mixed component 
conferences that include SIP 
participants require IP+ cards

32 channels at 
128Kbps