19/09/18
Page 58 of 67
ASR650 Operational Manual
4.10.1.2 Wireless Sync. Mode
The ASR is capable of doing
‘
Wireless Sync.
’ as well. This does also work, if you have several
readers close together, not only two. In order to use
‘
Wireless Sync.
’, you have to activate this
option as Sync. Mode setting first.
In Wireless Sync. Mode, the readers decide independently which ASR is
the Master. If the Master reader stops working, another reader will
automatically take over the role of the Sync. Master.
More details about this option will be explained in chapter 4.10.2
– ‘
Wireless Sync. Level
’.
4.10.1.3 Wired Sync. Mode
The ASR can also perform Wired Synchronization. The disadvantage, compared to the Wireless
Sync., is that you have to run cables between all readers you want to synchronize. But there are
also advantages: Wireless Sync. implies a quite stable RSSI, i.e. the successful function of
Wireless Sync. depends on the background noise. If there is a strongly varying noise level, the
wireless method might fail. So, for applications, which require 100 percent reliable
synchronization, that works completely independent of any noise levels, it is recommended to use
Wired Sync.
In Wired Sync. Mode, the readers decide independently which ASR is the
Master. If the Master reader stops working, another reader will automatically
take over the role of the Sync. Master.
The required hardware for wired synchronization is not available on the reader board per default.
It needs an add-on module for this purpose. For details about the Wired Sync. Module (
‘
ASY100
’),
please see separate synchronization manual or contact your local Agrident representative.
4.10.1.4 Wired Sync. Slave only
This Sync.
Mode is the same as ‘
Wired Sync.
’ but with the difference that the reader will never
take the role of the Sync. Master. The Sync. pulses need to come from an external source, like a
customized controller. Alternatively, one ASR could be configured to ‘
Wired Sync.
’ but when this
device fails, all readers
configured to ‘
Wired Sync. Slave only
’ will stop reading.
4.10.1.5 Wired Sync. Triggered
When this setting is activated, the reader will also wait for Sync. pulses from a Master unit but the
Sync. signal is a different one. For further details please refer to the synchronization manual.