Model Single Core-Fpr; Technical Specifications; Technical Specifications Of The Keyboard; Troubleshooting - Cherry G81-12000 User Manual

diagnostic test; all LEDs flash once, briefly.
In normal operation, the LEDs indicate
the status of the keyboard.

6.1 Model Single Core-FPR

Smart card switch on is explicitly
indicated by the green LED with Chip-
card symbol. "Secure Pin Entry" mode is
signalled by the red flashing Pin LED. In
this mode it is possible to send the PIN
entered using the numeric keypad
directly to the smart card.
7. Technical specifications
7.1 Technical specifications of the
keyboard
– Power supply:
+5 volts ±5% SELV
– Current input:
max. 200 mA
– Typematic function:
All keys have an autorepeat function.
Delay and frequency can be set from
the system.
– Power-on reset:
The keyboard automatically resets itself
at power-on.
– Keyboard self-test:
When current is applied or at the
system's request, the keyboard performs
a self-diagnostic test. If the test is
successful, the keyboard returns the
hexadecimal code AA. Any other code is
interpreted as a fault.
– Storage temperature: -20° C to +60° C
– Operating temperature: 0° C to +50° C
– Interfaces:
IBM PS/2-compatible keyboard interface:
9-pin SUB-D serial port connector;
25-pin SUB-D parallel port connector
– Data outputs:
Open collector TTL
– Data format:
Data is transferred to/from the keyboard
in IBM synchronous format
– Dimensions:
12000/12100 keyboard family:
470 x 220 x 61 mm

8. Troubleshooting

Warning!
Do not attempt to open and repair the
keyboard yourself.
– If error messages or scrambled
characters appear on-screen when the
computer is switched on:
Check that the keyboard is properly
connected to the computer system.
– If the keyboard is not working properly:
Check all connections; loose cables
and connectors are a common source
of faults.
– If the smartcard reader is not working
properly:
Check that the smartcard is positioned
correctly in the reader; make sure it is
fully inserted and the right way round.
Check the interface (port) settings in
the software on the PC and change
them if necessary.
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