Aastra X series Installation And Implementation Manual page 84

units do not supply ISDN 40 V. To supply 40 V to sets and/or base stations, connect an
external power supply unit to the T3 connector on the LD4 RJ card.
Figure 4-6: Connecting a base station to an S0 interface of an LD4 RJ card
S0 interface link with DECT base station:
LD4 RJ card RJ45 connector
Table10: S0 interface link of an LD4 RJ card with a DECT base station
AMT/PTD/TR/0020/2/7/EN
CONSOLE
RJ45
LD4
DECT base station
Pin 6 (NRD1)
Pin 3 (RD1)
Pin 5 (NED1)
Pin 4 (ED1)
10/2008
T
3
S
3
Base station RJ45 connector
Pin 6
Pin 3
Pin 5
Pin 4
T
0
S
0
LD4 X
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