Installation and Operation Manual

Table Of Contents
TD 92579EN
10 April 2015 / Ver. N
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 7.2.X)
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internal synchronization in respective region will still work but there can be no handover
between the regions.
Note: For the synchronization to work, it is not allowed to configure reference sync in a
ring.
Configure Sync Slave IPBS
All IPBSs in sync slave mode sends its list of sync candidates to the PARI Master. The PARI
Masters informs the IPBS sync slave which sync candidate it shall synchronize to.
In addition to the above automatic synchronization procedure it is also possible to use
static synchronization, that is, manually lock on to a specific RFPI. When specifying a
specific RFPI, it must be within the same synchronization region.
Configure Sync Slave as follows:
1 Select DECT > Air Sync.
2 Select "Slave" in the Sync Mode drop-down list.
3 To lock the sync slave to a specific RFPI, enter the sync RFPI in the Sync RFPI text
field. Enter an alternative sync RFPI in the Alternative Sync RFPI text field (optional).
4 Enter a region ID between 0 and 249 in the Sync Region text field.
5 Click "OK".
Configure Sync Master IPBS
Radios configured as sync master will report to the PARI Master that it wants to be a sync
master. The PARI Master will select one of them to be the active sync master.
When a sync master has been assigned to be active it searches for other IPBSs within the
same region during 30 seconds. If any IPBS is found the values for slot, frame, multi frame
and PSCN are received and applied to the Sync Master. After receiving all these values or
after the time-out of 30 seconds the Sync Master enters the master state.
With this method it will be possible to restart only the Master in the region. The remaining
slaves will be able to maintain synchronization for a few minutes during restart of the
Master. The Master will adjust itself to the other IPBSs at startup. The slaves will notice that
the Master is back and the synchronization will be received from the Master.
In master state the values are updated locally during all further operation of the Master
IPBS and no synchronization to other IPBSs in the same region is done.
It is possible to configure the Sync Master to synchronize to a reference base station
(another or same DECT system). In this case the Sync Master will try to synchronize to the
reference system if the reference system is found but it will not require the reference
system to be available. The Sync Master will operate even though the reference system is
not available. During startup the Master will prefer to synchronize to a slave base in the
same system before synchronizing to the reference base station.
Configure Sync Master as follows:
1 Select DECT > Air Sync.
2 Select "Master" in the Sync Mode drop-down list.
3 To synchronize the sync master to a reference base station, enter the reference base
station in the Reference RFPI text field. Enter an alternative reference base station in
the Alternative reference RFPI text field (optional).
4 Enter a region ID between 0 and 249 in the Sync Region text field.