Dect Radio Base Station Specifications; Connection; Figure 27: Radio Base Station - Matra Nortel MC 6500 Manual

10. DECT RADIO BASE STATIONS:
10.1

CONNECTION

Two-channel DECT radio base stations can be connected to the PBX using any S0
standard interface card.
Four-channel DECT radio base stations can be connected to the PBX with LD4 cards (PBX
6501/01L) and LDS cards (MC 6502/04 and MC 6550/L/LC PBXs) for PBX release 11.4
and later (with addition of ADPCM daughter cards).
The transmission support is composed of three telephone pairs. Two pairs are used for
transporting the S0 interface (one for transmission and one for reception); the third pair is
used for sending the DECT radio synchronization signal.
The third pair will not be necessary if the PBX is capable of transmitting the clock signal to
the S0 frame.
The wiring configuration used for DECT radio base stations is a point-to-point S0 interface
(maximum distance maximum 800 meters for a 6/10 mm 4-pair shielded cable).
Two-channel radio base stations
The S0 interface D channel transports the signaling between the PBX and the radio base
station. The B1 channel transports the voice signal of channel 0 and the B2 channel
transports the voice signal of channel 1.
64 Kb/s voice signals are A-law coded.
Four-channel radio base stations
The S0 interface D channel transports the signaling between the PBX and the radio base
station. The two B channels are used for transporting the voice signals for the four 32 Kb/s
ADPCM channels.
LCAH-30521-001-05=01/EN
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TECHNICAL CHARACTERISTICS

Figure 27: Radio base station

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