© Polycom, Inc. 183 ViewStation FX/VS 4000 User’s Guide
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PRI Technical Notes
Overview
The PRI interface is just one of several interfaces you can use with
the Polycom ViewStation FX or VS4000. To use the PRI interface,
you must connect a PRI network interface module, which is an
external unit, to the ViewStation FX or VS4000. For more information
about connecting the PRI interface module, refer to PRI Setup, page
4.
P-LINK cable
You use a special cable with light blue keyed RJ-45 connectors at
either end to connect the network interface module to the
ViewStation FX or VS4000. The cable, which is called the peripheral
link (P-LINK) cable, is designed to only connect to peripheral
devices that are unique to Polycom products, such as the PRI
network interface module or the V.35 network interface module. It is
provided with the PRI network interface module. The P-LINK cable
connector is keyed and does not fit into a standard RJ-45 network
port.
NETWORK Side of the PRI Network Interface Module
One side of the PRI network interface module has three vertical
LEDs and a standard RJ-45 port labeled “Network”.
The RJ-45 port connects to a standard CAT5 cable from the
upstream PBX or telephone company switch. This side of the PRI
network interface module is called the NETWORK side. The cable
that connects to the network side is called the network cable.
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