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Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide
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Rev 6
Access Keyboards 2001 & 2002 - All rights reserved Page 11 of 37
When the keyboard is powered through its keyboard connection the indicator will show Red if the
RS232 control lines CTS and DSR are not detected at a Active (High) level. In this mode no data
can be transmitted from an MSR, OCR or Bar Code input. The keyboard operates normally.
Single Green Flash
A single green flash of approximately one second is given when valid MSR, OCR or Bar Code data
is transmitted.
Single Red Flash
A single red flash of approximately one second is given when invalid MSR an OCR data is detected
and no data transmitted.
2.9
Internal Sounder
The sounder may be configured to be Enabled or Disabled using ATBconfig.exe. (See Section 3.1)
When Enabled, the sounder will emit a single Beep when valid MSR, OCR or Bar Code data is
transmitted. The sounder emits three short beeps when OCR data includes one or more “*”
characters.
When invalid MSR data is read the sounder does not sound.
When disabled no sound is emitted except a short beep at power up.
2.10 Integrated Mouse Pointer (Option)
An integrated “Trackpoint” PS/2 compatible mouse is available as an option. This uses Windows
standard Mouse drivers. The Trackpoint is located unobtrusively above the left cursor key and may
be used by right and left hand operators. The actuator is secured by the enclosure and a collar and
cannot be removed without disassembly of the keyboard. The pointing module is highly durable
and secured by screws internally to the keyboard chassis plate.
There are also three LED keyboard status indicators;
Num Lock, Caps Lock and Scroll Lock which are located
above the Numeric Pad and are designated by
International symbols.
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