Four-wire digital interface – Polycom SpectraLink 6100 MCU User Manual
Page 22
SpectraLink 6100 MCU: Installation and Operation: SpectraLink 6000 System
Four-wire digital interface
The wiring diagram below shows the connections required for a four-
wire interface . Each MCU of this type requires two demarcation
blocks which will be wired as indicated.
A
B
Receive (RX)
To PBX
Telephone Ports
Pair 1-16
Pair 17-25 Unused
Transmit (TX)
From PBX
Telephone Ports
Pair 1-16
Power Pairs 18-19
Base Stn. 1-4
Data Pairs 20-23
Base Stn.1-4
Pair 24 & 25 Unused
To
PBX
To
Base Stations
Pair 17 - Unused
Four-wire Digital Connection
PN: 1725-36097-001_G.doc
22
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