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1.5 The Membrane Keypad
The sealed-membrane keypad has 59 keys including 10 function keys to allow users
enter data directly. Users also can attach the external keyboard through a connector on
the front panel of WS-855. A built-in controller will merge the signals from the
membrane keypad and general keyboard into one signal, which acts as a standard
IBM PC/AT keyboard.
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Chapter 2 System Setup
7
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