Here are some example scenarios.

  1. The customer environment blocks the DECT signal between the Office and the Factory
  2. DECT synchronisation can't be used between the Office and the Factory

Pure LAN synchronisation.

  1. Cluster 1-c is created to insure handover, roaming and load balancing
  2. One device is configured as LAN master
  3. The other DECT base stations are configured as Sync slave LAN
  4. DECT level has no relevance for pure LAN synchronisation
  5. Handover and roaming is possible within the whole DECT environment
  6. That LAN sync is used, does not mean that DECT signal range is not important




DECT system configuration



DECT-LAN Mixed.

  1. Use such a configuration, if your environment is mainly able to synchronize via DECT but there are particular circumstances which cannot always guarantee reliable DECT synchronisation, e.g., a passage through a fire door
  2. Cluster 1-c is created to insure handover, roaming and load balancing
  3. Base station 1 in the center is DECT level 1 to reduce the amount of sync levels
  4. Base 1 with DECT level 1 is configured as LAN master
  5. For each base lower than the LAN master you can individually decide whether it should be synchronised via DECT or LAN
  6. Base 2 is synchronised via DECT and has DECT sync level 2
  7. Base 3 is synchronised via LAN 


DECT system configuration



DECT-LAN-DECT Mixed.

Solving the blocked DECT synchronization to the DECT bases in the factory with LAN synchronization gives you the possibility to:

  • Configure the DECT bases using LAN sync
  • Configure the DECT bases using DECT sync

Here an example that the DECT synchronisation in the factory is using DECT sync.

  1. Base 1 is the LAN master and DECT Sync level 1
  2. Base 2 is synchronised via DECT and has DECT sync level 2
  3. Base 3 is synchronised via LAN and has DECT sync level 2
  4. Base 4 is synchronised via DECT to Base 3 and has DECT sync level 3 (Sync level must be higher then Base 3)

DECT system configuration


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2 Comments

  1. Baremans, Eric

    Lenfort, Christoph Was there a preferred Sync level setting for the DECT bases where Sync Slave = LAN? In my mind there was a preferred level setting.

  2. Lenfort, Christoph

    (smile)(smile)(smile)

    Within LAN synchronisation there are just two levels Master and Slave.
    If I remember correct: LAN-Master must be at DECT Level 1.

    It is important to understand: The DECT level is marking the DECT transmitter.
    Any LAN slave is a DECT transmitter.
    And the level that you assign to a DECT transmitter needs to fit to the DECT sync chains that you have.

    As long as we assume LAN-Master must be at DECT Level 1,
    it sounds sufficient and recommended to have all LAN slaves at level 2.
    ( currently I cannot find a scenario, where this rule of thumb does not work, but maybe there is one).

    In the initial design phase, we have dicussed to allow for pure DECT synchronisation in the higher levels only and to use the LAN sync just for some lower hops.
    This idea is still in the backlog. I guess we won't implement it.
    With such plans, the rule should be:
    DECT-Level of LAN-Slave should be of higher number than DECT level of Master..
    If you want to be flexible in swapping between DECT or LAN sync, you could select a DECT level for that DECT tranmitter , that would fit into the remaining DECT sync hierarchy.