Polycom vsx7000 Guía De Referencia

Administrator’s Guide for the VSX Series

2 - 14

If you received a network interface module with your system, you may find it 

convenient to install it before positioning the system. Refer to the setup sheet 

that you received with the network interface module.
You will need the following network hardware:

The diagram below shows a general view of how network interface modules 

are connected in set-top and component VSX systems.

NT-1 device, if the system will be connected to a 
network that provides a U interface. Do not use an 
NT-1 device if your PBX network provides an S/T 
interface.

Up to 4 BRI lines that will not be shared with other 
equipment. 

If you connect fewer than four BRI ports on the 
system’s network interface module, connect them in 
ascending order, starting with port 1.

PRI 
(North America and 
Japan)

PBX crossover cable, if required for your PBX.

Channel Service Unit (CSU) — not required if you 
connect the system to a PBX network.

PRI line.

PRI 
(outside North America 
and Japan)

75 W coaxial adapter, if the network connection is 
via a 75 W coaxial cable.

PBX crossover cable, if required for your PBX.

PRI line.

Third-party network equipment and cables.

Contact your network equipment vendor to obtain the 
appropriate cables for the equipment you connect to 
this interface. If you use only one cable, connect it to 
port 1 of the network interface module and to the 
lowest-numbered port of the data communications 
equipment. 

Examples: 

Quad BRI — NT-1

PRI — CSU

V.35/RS-449/RS-530 — 

encryption equipment