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Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide
Connections
The ATB420/421 is connected to its host computer via a cable fitted with a 6 pin mini-DIN keyboard
connector and a 9 pin Female D Type connector for connection to a standard RS232 Port. The
keyboard is powered from a standard keyboard port and does not require an external power
supply. If the pointer option is fitted then the cable is terminated with a 9 Pin D Type connector and
two PS/2 connectors, which are colour coded. (Purple – Keyboard and Green – Mouse)
Pin NO Signal
1
Data
2
free
3
Ground
4
+5V
5
Clock
6
Free
N.B
When installing the keyboard please ensure that you connect the mouse (green PS/2) connector
first before the keyboard (purple PS/2) connector
Optional USB connectors for Legacy Systems
Access can provide options whereby a USB to serial and USB to PS/2 connectors can be added to
provide USB connectivity for Win 2000 and XP based systems
All data i.e. OCR, MSR, BCR or keyboard, mouse will be transmitted through the USB converter
but acting as a virtual serial wedge or virtual keyboard wedge. COMS will require to be selected.
Examples of such devices are illustrated below and can be purchased directly from Access
Keyboards Ltd
A USB to serial driver will require to be downloaded before the USB converter can be operable.
This can be found on our web link i.e. www.accesskeyboards.com/downloads
USBserialXP_Driver.exe
___________________________________________________________________________
©
Rev 6
Access Keyboards 2001 & 2002 - All rights reserved
All manuals and user guides at all-guides.com
Pin NO Signal
1
Free
2
TXD output
3
RXD input
4
DSR input
5
Ground
6
DTR output
7
CTS input
8
RTS output
9
Free
,
and click on
Page 6 of 37
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