Aastra X Series, Installation And Implementation Manual, Page: 170 / 217

AMT/PTD/TR/0020/2/7/EN 10/2008 Page 8-170
8.6.6 F6-F6/F6 or F6-F6/F1 contiguous multi-site configuration in
duplex mode
The two "Master" PBXs are connected via their primary port. The secondary ports of the “Master”
PBXs are connected to the primary ports of the “Slave” PBXs.
The base stations must be wired in two pairs. The synchronisation signal is carried by the M bit in
the S frame.
Note:
If the DECT base stations are connected to the integrated S0 accesses of the
NeXspan S CPU card, a third pair is required for synchronisation.
Note:
The LD4X (removing jumper J14 from an LD4NX card and offering additional functions)
is only compatible on the NeXspan S/L/D range and as of software release R4.1.
(*) Minimum of OCT4 card on F1
Figure 7-24: F6-F6/F6 or F6-F6/F1 contiguous multi-site configuration in duplex mode
P S P S
P S P S
DECT base stations
DECT base stations
DECT base stations
DECT base sta
LD4 LD4
LD4
LD4
IP or T2 link
F6
Priority
master
F6
Not priority
master
F1 or F6
Slave
F1 or F6
Slave