REFERENCE GUIDE
Appendix A: Product Specifications
General Specifications
The Clean Screen PC is an IBM compatible PC integrated with a color LCD screen. Utilizing
Intel’s Pentium processing power, the Clean Screen PC supports up to 128 MB of memory and
can use most 2.5" IDE hard disks. The Clean Screen offers a choice of either a 800 x 600, 12.1"
or 1024 x 768, 13.8" flat panel display. The unit has one parallel port (LPT1), one AT keyboard
port, one PCMCIA Type III (or two Type II), and one 16-bit ISA format
1
⁄
2
-card size expansion
port. There are two external serial ports (COM A and COM B) using high speed UARTs. The
unit is powered by a single, external power supply brick. Standard mounting options for the
Clean Screen include wall mounts and swing arms. The integrated PC/display unit is rated to
withstand shocks of up to 50 g. Both the unit and the power supply are UL2601 listed. They can
be wiped down without interrupting operation.
In short, the Clean Screen PC provides compact, rugged, and efficient PC support to medical,
industrial, and clean room applications.
EPM-1 Module
The processor, chipset, cache, DRAM, real-time clock and BIOS reside on a RadiSys EPM-1
daughter board. This board can be easily replaced for repair or upgrade. The two Dual SO
DIMM sockets support from 8–256 MB of 3.3V Fast Page mode or EDO DRAM modules. It
has a 512 KB write-back L2 Cache supporting pipelined burst SRAM. Its Phoenix BIOS allows
for power reduction by shutting down the display and disk drive power when no activity is
detected.
LCD Support
The standard Clean Screen color LCDs are the NEC NL8060BC31-01 12.1" 800 x 600 256k
color TFT-AMLCD Panel and the Sharp LQ14X03 13.8" 1024 x 768 256k color TFT-AMLCD
Panel.
VGA/Flat Panel Graphics Controller
VGA graphics support is provided by a Cirrus Logic CL-GD7555 with 2 MB of buffer DRAM.
PCMCIA Controller
A Cirrus Logic CL-PD6720 PCMCIA Host Adapter chip supplies the functionality of an Intel
82365SL PCMCIA interface, meeting PCMCIA 2.1/JEIDA 4.1 standards. The controller is also
connected to IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, IRQ14, and IRQ15. Interrupts
from PCMCIA cards or the 6720 Card Status Change circuitry may use any of these IRQs.
The PCMCIA slots support one or two Type I or II PCMCIA cards, or one Type III PCMCIA
card. The PCMCIA socket will only accept 5V PCMCIA cards (no 3.3V only cards).
Appendix A: Product Specifications
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