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Integrator's Reference Manual for Polycom HDX Systems
ISDN Cable
This cable connects a Polycom HDX system to a BRI or PRI line. It has clear RJ-45 connectors on both
ends and is used with all Polycom HDX systems that have ISDN capability. The maximum approved length
for this cable is 50 ft (15 m).
Length
20 ft (6.6 m)
PRI Pin Assignments
The following illustration and table show the pin assignments for the PRI port on the Polycom HDX system.
Polycom, Inc.
Part Number
2457-08548-001
Pin 8
Pin 1
RoHS Compliant
Yes
Pin
Signal Name
1
Receive Ring
2
Receive Tip
3
No Connection
4
Transmit Ring
5
Transmit Tip
6
No Connection
7
No Connection
8
No Connection
Cables
79
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