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1-16 Chapter 1: 7401-2xxx and 3xxx Product Overview
Audio
The base unit has SoundBlaster-compatible audio. Wave table
synthesis is not supported. FM synthesis and MIDI are supported in
the hardware, but requires software driver support to function.
Higher quality integrated stereo speakers may be added as an option to
the terminal. The amplifier is located on the Processor Board; the
speaker output is provided on a header that receives the harness from
the speaker module. In addition, a Line Out is provided on a 3.5 mm
stereo jack that permits connection of external amplified speakers.
The integrated stereo speakers, or an amplifier connected to Line Out,
must be used in order to play SoundBlaster (audio subsystem) audio.
However, an internal EUI speaker provides PC speaker functionality
(beeps and tones) for all configurations.
The volume control can be set during system configuration.
The PC speaker sounds (such as beeps and touch clicks) are directed
into the audio subsystem and are audible if speakers are connected.
• Release 2.0 – 2.4 processor boards use a Cirrus/Crystal CS4614
(PCI-based) sound controller that supports DirectX 6 sound.
• Release 2.5 processor boards use an ESS Allegro ES1989 sound
controller that supports DirectX 8 sound.
Magnetic Stripe Reader
A 3-track MSR head is available as an option. The ISO card format is
supported.
When card data is read, an interrupt is generated. A software device
driver for the MSR must be loaded to enable the application to process
the data.
Touch Screen Controller
The MicroTouch "Excalibur" chip is used to interface the touch panel.
This controller supports MicroTouch capacitive panels.
In order to save an RS-232 port, the touch data is delivered to the
system through the mouse interface. This requires a mouse-aware
touch device driver for the appropriate OS.