Simons Voss Technologies SmartRelay 3 Manual page 57

SmartRelay 3 system (Manual)
The reader is installed in a suitable position in an existing housing – in an
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existing intercom housing, for example. This variant is inconspicuous
and offers effective protection against the weather, vandalism and
sabotage.
The reader is fitted on the wall. This variant is visible on the outside and
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makes it easier for users to place their identification medium onto the
reader. The read range is better compared to a reader fitted inside an
existing housing. The protective housing (SREL2.COVER1) ensures
protection against the weather, vandalism and sabotage.
The user can use their identification media to check authorisation while in
the car. If the user does not have an identification medium, but is expected,
they can still announce their arrival, using an intercom, for example.
Another person who is in the protected area can then let the user in by
pressing the connected button. The button can be installed in a gatehouse,
for example, which only allows external customers to enter during business
hours while users with identification media can come in at any time.
Users who wish to leave the underground car park are within a protected
area. Consequently, there is no need to re-verify authorisation for the door.
Greater convenience is provided by connecting one button in a parallel
circuit with another button (in the gatehouse) and positioning it near to the
exit within the protected area.
No-one can manipulate the data since communication is secured from the
reader to the controller and to LSM. When the data reach the controller,
the controller evaluates them. If there is a virtual network and connection
to LSM (Ethernet), the latest information is retrieved using the
identification medium; if not, the system used the last status saved
internally. Depending on the result of the evaluation, the controller triggers
the required action, such as actuate a relay.
If a virtual network is used, the system is ideal for use as a gateway. The
underground car park entrance features a locking device which is heavily
used. This means that each identification medium used here is verified on
the reader and, consequently, in the LSM database via the controller.
Authorisation changes, IDs to be blocked and time budgets are thus
efficiently managed.
The controller can be powered either via an external power supply unit or
via the network line. The controller, in turn, can power the reader. If the
voltage drop is too great, the reader can also be supplied by an external
power supply unit (see
External power supply [
8. Setting up
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