User's Manual

Operation Manual
0564A02B-002 / EQT Medusa M1415-USB
REVISION 1.0, 2008-02-27
The EQT-Medusa- M1415-USB is a RFID Read-/Write-Device (short: reader) which is
compatible to all Mifare cards. The reader also supports ISO14443A/B and ISO15693 and all
cards compliant to these standards. It provides an universal serial interface (USB) to output
or exchange data with a host computer (typically an Equitrac Page Counter Unit, a printer or a
copy machine) and a 13.56MHz inductive interface to supply power to and exchange data
with the Mifare/ISO compliant card (or other available form-factors such as tags, key-fobs).
The host computer can control a bi-colour LED and a beeper to interface with the user.
Mounting and Connection
The reader generates a magnetic field with the frequency of 13.56MHz which is influenced by
any electrically conductive material in close proximity to the device. When mounting the unit,
a distance to any such material of minimum 10 cm is required to ensure that there will be no
significant degradation of the performance in terms of read range and reliability. Mounting
the unit directly to metal would result in a severe reduction of read range down to zero
functionality. Care should be taken when testing the device after mounting at a problematic
environment: Read ranges and performance vary from card to card and very much from card
to tag or key-fob.
When mounting multiple readers, the distance between readers should be minimum 0.5 m in
order to avoid degradation of performance due to interference.
To connect the device to an Equitrac PageCounter, printer or copy machine, please make sure
the host system provides an USB socket intended for connection of the reader.
Operation
Whenever the device is connected to a proper power supply, it will switch on the internal
antenna and periodically scan for a card. Once a card has been detected, the card number is
read, the data converted and sent to the host system through the serial interface. To enable the
device to read cards, tags and key-fobs successfully, they should be placed centred above the
reader.
Technical Data
DC Electrical Characteristics
Symbol Parameter Condition Min Typ Max Units
Vdd Supply Voltage 4.75 5 5.5 VDC
Idd Supply current 200 mA
Idd1 Peak Supply current Inrush 450 mA
1