C
ORDLESS
P
HONE
18
6/1531-ANF 901 14 Uen F1 2013-11-29
Figure 8: Single break in the synchronization ring
.
Faulty configuration:
E1/T1 in other media gateway than where Preferred DECT Ring Master
is located. It is very important that they are not used as possible synchro-
nization source.
media gateway
ELU31/4
MGU/x
PSTN
~
media gateway
ELU31/4
MGU/x
~
media gateway
ELU31/4
MGU/2
~
E1
media gateway
ELU31/4
MGU/x
~
or optionally
PCM
PCM
PCM
free running
MGU clock
PCM ti
ming dist
ribut
ed by th
e
DE
C
T
Synchro
n
izat
ion Ring
T
PDRM
X
T
Ring member
Ring Master
The holdover function at this
Oscillator will guarantee a
proper DECT synchronization
distribution to all boards.
timing
timing
timing