Polycom DOC2238A - Manual (Page 55)

MGC+ Hardware and Installation Manual
2-35
Connecting the MGC+50 to the PSTN Network
To connect the MGC+50 to the ISDN network and T1-CAS network:
• Connect the 8-pin RJ-45 connector of the network cable to the NET
RJ-45 jack on the rear panel of the MGC+. Repeat this step for each of
the ISDN network lines to be connected to the Network Interface card
installed in the MCU.
Figure 2-15: ISDN network connection
• Leased lines should be connected using an adapter with a screw
connector for solid conductor wires with a diameter in the range 0.4 to
0.6 mm. Use Polycom P/N CBL0602A or similar adapter.
Connect one side of the adapter to the NET RJ-45 jack on the rear panel
of the MGC+. Then connect the leased line wires to the other side of the
adapter.
This is an optional Network Interface Card. If the MGC+50 has to be connected
to the public ISDN network then an external CSU or where required, similar
equipment is needed.
T1-CAS network is optional. It allows you to connect Audio Only participants to
conferences via T1-CAS lines. It uses the same network connections as ISDN
and the procedure described below is applicable to both ISDN and T1-CAS
lines.
ISDN network
connection
ISDN Network connection
for 4 spans
ISDN Network connection
for 8 spans
The ISDN and T1-CAS network properties must be defined in the Network
Services. For details, see the MGC+ Administrator’s Guide, Chapter 3.