Aastra NeXspan 500 - Connecting Base Stations

AMT/PTD/PBX/0020/2/4/EN 01/2007 Page 87
4.6.6 Connecting base stations
Each base station is connected to the ISDN S0 (BRI) interface of an LD4NX RJ card, and uses
two pairs: 1 transmit pair and 1 receive pair.
Note:
If there are a DECT base station and an S0 terminal (other than the base station) on the
same card, the base station must be powered with a 40 V supply.
Figure 4-13: Connecting a base station to an S0 interface of an LD4NX RJ card
S0 interface link with DECT base station:
Table 20: S0 interface link of an LD4NX RJ card with a DECT base station
LD4NX RJ card RJ45 connector Base station RJ45 connector
Pin 6 (NRD1) Pin 6
Pin 3 (RD1) Pin 3
Pin 5 (NED1) Pin 5
Pin 4 (ED1) Pin 4
Console
LD4NX
T
0
S
0
T
3
S
3
NMI
RST
RUN
OFF
RJ45
LD4N
DECT 
BASE STATION