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Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide
___________________________________________________________________________
Rev 6
Access Keyboards 2001 & 2002 - All rights reserved Page 10 of 37
2.6
Auxiliary RS232 Interface Port
Data Input
:
Standard ASCII RS232
Configurable settings
9600 Baud,
7 Bit or 8 bit
No Parity or Even
Parity
One Stop
The auxiliary R232 port connection of industry standard external OCR reader, decoded barcode
scanner or RS232 device. A +5 Volt, 150Ma power supply is available on pin 9 of a 9 PIN D type
connector
2.7
Integrated ‘dual illumination’ OCR Reader
Data Source
:
Machine Readable Passports (MRP)
2 lines of 44 characters
Machine Readable Visas (MRV)
2 lines of 44 characters
2 lines of 36 (size II)
Machine Readable Travel Cards
2 lines of 36 (size II) & 3 lines of 30 (size I) characters
Stock control number and document number of ATB 2’s
IATA 2 of 5 barcode of TAT’s
Data Standards
:
Conforming to ICAO Document 9303
IATA Recommended Practice 1720a
Data Output
:
Standard ASCII
Media thickness
:
1.25mm
Swipe Velocity
:
10 - 40 cm/sec
Response time
:
0.9 – 1.4 seconds
Read direction
:
Right to left
Construction
:
Integrated into keyboard housing
MTBF
:
100,000 operating hours
Read head life
:
500,000 passes
Diagnostics
:
Internal self test upon power up
Red and Green LED for data read and audible
sounder.
The OCR reader outputs data read from a machine readable document in ASCII. If a letter is not
readable it will substitute this character with an *. If the OCR reader is unable to decode a
document it will output a single line of 30 * characters.
2.8
Bi-colour LED
The Bi-colour LED is used to provide status indication to the user.
Red
Pin NO
Signal
1
2
3
4
5
6
7
8
9
Free
RXD input
TXD output
DTR output
Ground
DSR input
RTS output
CTS input
+5V
9 pin D type Male
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