Aastra X Series, Installation And Implementation Manual

Page: 101 / 217

Page 4-101 10/2008 AMT/PTD/TR/0020/2/7/EN
4.8 Base station synchronisation
The base stations connected to the S0 accesses of an LD4/LD4NX card and to the integrated S0
accesses of a second-generation UCT2-S/UCT2S-12/UCT2-C or third-generation UCT3-S,
UCT3S-12 card are synchronised in a software, through M bit and S frame.
DECT base stations connected to integrated S0 accesses of a UCT1-S/UCT1S-12/UCT1-C card
are synchronised by a third pair.
Figure 4-20: Connecting two DECT base stations to S0 accesses of a UCT1-S/UCT1S-12/UCT1-C card
For a DECT base station connected to an S0 access of an LD4/LD4NX card and another base
station connected to an integrated S0 access of a first-generation card
UCT1-S/UCT1S-12/UCT1-C, it is also necessary to wire a third pair for synchronisation.
P
BX_MATRIX_XS_UCTS_CONNEXION_DECT_01_
01
DECT base
station
1 2 3 4 5 6 7
8
1 2 3 4 5 6 7 8
Twisted cable
Standard point-point cable
Crossover
box
Standard point-point cable
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
UCT1-S/UCT1-C
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7
8