RFID READER MODULE PRODUCT BRIEF
            --------------------------------




INTRODUCTION
------------

The MVS RFID1/2 are low frequency (125khz) passive readers in an industry
standard 32 pin DIP module.  The tags derive power from the reader so no
batteries or external supplies are needed.  Unlike competitive units that
are only compatible with EM formats the MVS RFID1 reads all LF tags and
dongles.  For example others can't read the transponders from ATMEL
(Digi-Key tk5530-232-pp-nd) but NO PROBLEM for the RFID1! Applications
include tracking manufactured goods, access control, automotive, time clock
ID badges, point of sale, home secutity, and many other related functions.

Another advantage of the RFID1 over other readers is extended range due to
higher transmit voltage: four times the distance of lower voltage units. 
The larger high-Q MVS antenna works over eight times farther than those
readers with small integrated PC board antennas.  Even greater distance is
possible (60cm and more) with custom coils and extenders.

Operation is simple: bring a tag near and the ID number (as printed on the
card) is sent out the serial port in human readable ASCII characters. 
Asynchronous serial for the RFID1, synchronous for the RFID2.  No garbled
binary or extraneous numbers are transmitted.  And the MVS unit can be
plugged directly into a PC serial port for testing even deriving power from
the handshake lines.  Try THAT with other modules!

Hooking up a solenoid or other access control device is easy because,
unlike others which only provide a TTL level signal, the MVS modules have a
built-in high power analog switch relay circuit capable of driving heavy
loads directly.  Also the RFID1 reader holds more card tag IDs than other
readers (4000).  The DIP switch master and slave card qualification process
is quicker, easier, and more secure than most.  An on-board LED display and
"beeper" signal provides ID confirmation.  Generally speaking the MVS
product is equivalent to competitive units along with their bulky
evaluation boards combined into one compact module.  And cost is GUARANTEED
lower than any similar readers on the market.






PHYSICAL LAYOUT
---------------

  .1" DIP 32 with .6" spacing

        ,---, DB9 connector (plugs directly into PC or microcontroller)
      ,-'   '-,
pin 1 |       | pin 32
      |       |
      |       |
      |       |
      |       |
pin 16`-------' pin 17






RFID DB9 (female)
-----------------

pin signal        description
 2  TX1    Transmit output (to PC RX)
 3  RX1    Receive input (from PC TX)
 4  VCC    4.5-5.5 vdc @ 12ma
 5  GND    Common ground






RFID DIP32
----------

          -1  pin 32- +12
          -2      31-
      GND -3      30- GND
     ANT1 -4      29- VCC
          -5      28-
          -6      27-
     ANT2 -7      26- VDE
          -8      25- RELAY2
      VCC -9      24- SEROUT
      SW2 -10     23- SW3
          -11     22- RELAY1
          -12     21- 
      VCC -13     20- 
      GND -14     19- SW2
      TX1 -15     18- GND
      GND -16     17- SW1






POWER (.1" male pins)
---------------------

 1  VCC (4.5-5.5vdc 12ma, red on PC floppy power cable)
 2  GND (black on PC floppy power cable)
 3  key (block this hole on PC floppy power cable)
 4  +12v (optional, yellow on PC floppy power cable)






LIMITED WARRANTY 
----------------

MVS repairs free of charge products suffering from manufacturing defects
for a period of 5 years.  This will be done only if it has been determined
by MVS that the product has not been misused (improper voltages, physical
alteration, etc.).  Otherwise a minimum service charge is required.  In
either case it is necessary to contact MVS with invoice handy for a
Returned Merchandise Authorization (RMA) number before shipping the unit.