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Administrator’s Guide for the VSX Series
2 - 14
Connecting Set-top and Component Systems to ISDN or Other Networks
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.
If your network is... You will need
BRI • 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.
Serial
V.35/RS-449/ RS-530
• 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.
Additional device
Examples:
Quad BRI — NT-1
PRI — CSU
V.35/RS-449/RS-530 —
encryption equipment
Network
interface
module
VSX system
Network