Polycom VS4000 Administrator's Manual page 36

Administrator's Guide for ViewStation EX, ViewStation FX, and VS4000
2-14
To install the PRI network interface module:
1. Ensure that the system is powered off.
2. Connect peripheral side of the PRI network interface module to the system
using the network interface cable that is color-coded light blue on both ends.
System
side
ViewStation EX
2
3.3V 7A
12V 3A
XVGA
4
2
Network interface
1
Y
C
3. Connect the 12-volt DC power supply to the PRI network interface module
and then to the UPS or wall outlet.
The external 12-volt DC power supply is mandatory in European countries, and strongly
recommended in all installations.
If the PRI network interface module loses power, this creates an alarm condition that
may result in the service provider disabling the line. The external power keeps the PRI
network interface module from losing power when the system is powered off. Connect
the external power supply to an uninterruptable power supply (UPS) if possible.
Connect the PRI network interface module to the ISDN network or to the CSU
4.
(North America only).
PRI
0101
1
VS4000
XVGA
Y
5
C
1 2 3 4
1 4 2
3
Network interface
ViewStation FX
4
3
2
3.3V 7A
12V 3A
1
XVGA
4
2
Network interface
4
0101
www.polycom.com/videodocumentation
0101