Installation manual

92 20/10/2004 PS10270JENAA01
Wiring DECT base stations
Each terminal is connected to the ISDN S0 (BRI) of an LD4/LD4N card, and uses two pairs: 1
transmit pair and 1 receive pair.
, Refer to the "Integrated DECT service" installation manual for more information.
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.
Connecting DECT base stations to an LD4 card (synchronisation signal by third pair)
Whatever the synchronisation mode, ground the shielding or unused pairs to the cabinet.
S0 interface link with DECT base station:
CAUTION
Never invert the polarities of the clock and transmit/receive pairs.
8-pin STOCKO connector RJ45 connector
Pin 4 (NRD1) Pin 6
Pin 3 (RD1) Pin 3
Pin 2 (NED1) Pin 5
Pin 1 (ED1) Pin 4
LD4 Card