Polycom ViewStation FX User Manual page 209

Appendix D
© Polycom, Inc.
P-LINK cable
A special cable with keyed RJ-45 connectors that connects a PRI
network interface module to an FX or VS4000.
P-LINK side
The side of a PRI network interface module that connects to an FX
or VS4000.
T1
A 1.544 Mbps carrier, which supplies 23 data channels at 64 kbps
and one signaling channel.
Upstream
Towards the network and away from the Customer Premise
Equipment.
195 ViewStation FX/VS 4000 User's Guide
PRI Technical Notes