Installation Instructions

Installation Instructions
SCR-Smart Card Reader
The content of this document is protected by copyrights.
Date
Name
Created
28..11.11
Hen
File name:
B
--.--.--
-
-
-
Approved
28.11.11
Hen
03 65044 0 B.doc
Index
Date
Created
Approved
Standardization
Standardization
30.11.11
Jor
Scheidt & Bachmann GmbH
D-41238 Mönchengladbach Breite Straße 132
Installation
Instructions SCR
03 65044 0 __
Page: 2 of 8
2 Operational description
2.1 Basic operation principle
SCR is a 13,56Mhz RFID Transponder Read/ Write Unit for use in S&B equipment. It can be
used for various applications in S&B eqt, such as SmartCards, eTicketing, wireless creditcard
processing (EMV), etc. All such devices are under responsibility of S&B.
Corresponding partners for SCR are passive RFID Transponders, based on the ISO 14443 Type
A and B or Mifare standard. The transponders are passive units; the power supply of
transponders is realized via RF link of the SCR module.
SCR serves as an interface between data medium (transponder) and the S&B subsystem:
 RF modulation and demodulation
 Digital Data generation and detection
 Intermediate memory (for processing and commands)
 I/F to S&B eqt. (such as Ticket vending machines)
2.2 System Structure
The processor-based SCR solution consists of two PCBs (CPU module and baseboard):
The CPU module contains the CPU together with an FPGA. All necessary interface lines are fed
to two connectors. The CPU Module is plugged into the baseboard.
On the baseboard resides the power supply that converts the input voltage of 8V—12V into 5V
and 3.3V. Alternatively the SCR can be supplied with a 5V power supply. Additionally two
chips are implemented to interface to two independent antennas for transactions with contact less
smartcards. Another chip is used, to interface to four SAM (secure access module) sockets.
Finally there are all connectors, transceivers and other components integrated, that the SCR
needs to communicate to a host (USB 1.1, RS232) and to the customer (antenna, LEDs, buzzer).
The Smart Card Target (that is the area, where the customer shall tag the contact less smart
card) is a separate PCB, designed as antenna, with LED and a buzzer as user interface. The SCR
supports two independent antennas.
Four SAMs (secure access module) sockets are implemented to handle keys and to store
transaction data (depends on application).
The SCR is equipped with a USB compliant interface to perform upload of transactional and
event data and download of firmware versions and operational data.
The SCR can be equipped with a RS232 interface to perform the same data exchange that is
possible with USB.