AMT/PTD/PBX/0020/2/4/EN
01/2007
Page 141
This timeout can be adjusted via MMC (see chapter - Multi-site programming, § 11.4).
Adjustment is made in 100 m steps on the slave PBXs, with the following formula applied:
8xN + totalL
where N = number of slave PBXs from master PBX
and totalL = total length of cable between master and slave PBX
Example figure above:
•
L1 = 50m, L2 = 200m, L3 = 27 m
•
Compensation for slave site 1:
8x1 + 50 = 58 m => compensation < 100m
•
Compensation for slave site 2:
8x2 + 50 + 200 = 266 m => compensation < 300m
•
Compensation for slave site 3:
8x3 + 50 + 200 + 27 = 301 m => compensation < 400m
Note:
The maximum cumulative length of the cable must not exceed 1952 m.
The cumulative length of the cable between a slave N and slave N+2 must not exceed
600 m.
7.3.2
Wiring of synchronization ports
ISDN straight wiring:
Tableau 6 : Wiring of synchronization ports
Signal
RJ45 J6
RJ45 J3
1st pair
2.048 MHz clock
PHBIT
3
3
NHBIT
6
6
2nd pair
DECT clock
PHDECT
4
4
NHDECT
5
5
Summary of Contents for NeXspan C
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