INSTALLATION
POWER
Connect 7-10V AC or 10-14V DC to the two terminals marked ~. The polarity of the
connection is not important.
DOOR STRIKE
The unit provides a relay output rated at 24 VDC at 1A . The following contacts, that
are isolated from the rest of the board, are provided; normally open (NO) contact,
normally closed (NC) contact and a common (COM).
Typical connections to a door strike are shown on page 3.
Note:
A time switch may be connected as shown to "Inhibit" or to disable the reader
during certain times.
Note: When using a strike with DC the relay contacts will be damaged by arcing due to
back EMF when the contact opens. Use a IN4001 diode as shown on the drawing to
prevent this damage.
DOOR MONITORING SWITCH
If a door monitor switch is used, the door strike will be reset the moment the door is
opened. This ensures that the door will always lock even if a long strike time is set.
The switch must close when the door opens and is wired between DOOR and GND on
the reader base.
Push-button
A push-button may be connected to allow remote operation of the door strike relay.
The push button must be normally open and is wired between the PUSH-BUTTON
and GND connections on the reader base.
OPERATION
On first time power up of the unit the following sequence will occur:
x
all 3 lamps will go on for 1.5 seconds.
x
the three lamps will flicker asynchronously showing that the reader
memory is being initialised.
x
the POWER lamp will stay on permanently.
Whenever a card is now swiped successfully through the reader the PASS lamp will
go on, the door strike relay will operate. If the printer option is used, a line of text will
be printed giving the first 16 digits of the card number.
The door strike and PASS lamp will stay on for the programmed door strike time
(0.25s - 12s). If a door switch is connected to the unit the door strike relay and PASS
lamp will go off as soon as the door is opened.
If a card is not recognised or is of the wrong format the FAIL lamp will go on for 1.5
seconds after swiping the card.
MSR441 User Handbook rev2.lwp Page 2 of 3
