Ask LDB 2 Посібник користувача - Сторінка 5

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USER MANUEL

LDB 2

DESKTOP READER

2.1 READER COMPONENTS

LDB 2 consists of a control board called "coupler board", and antenna board, a DC supply

converter board (with two extra SAM sockets) and a contact card interface board.

The coupler board contains a microprocessor, non-volatile memory and a radio frequency

transmitting circuitry. This board communicates with smart cards via RF link (provided by an

antenna board), and to the terminal via RS-232 interface. The serial rate is set to 115,2 bps.

The coupler platforms are GEN320 or GEN325 elements which can be purchased separately

at ASK. These two OEM coupler boards are compliant with ISO/IEC14443-2 directives (Radio

frequency power and signal interface). Communications can be executed according to the

type A or type B of the directive.

TOP VIEW

Antenna connector

RS232 connector

SAM location

Figure 1 : GEN 320-GEN 325 board

GEN 320 and GEN 325 board are strictly identical, except that on GEN 325, PHILIPS 's

RC500 chip is added. In this case, the chip just manages MIFARE cryptography mode.

The RC500 chip is located (or not) at the bottom of the printed circuit board (PCB).

BOTTOM VIEW

RC500 chip

Figure 3 : GEN 320 board

Figure 2 : GEN 325 board

ASK R&D

Réf. : RD-MU-03036-10

Rév.: 1.0

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