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Internal expansion ports, Display, System tray indicators – Juniper Systems Allegro CE Manual User Manual

Page 212

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Page 5-4 Technical Reference

- COM 1: Sealed 9-pin D; filtered for EMI; full modem control signals;

5V @ 200 mA available on DTR pin; controlled by DTR

- COM 2: Sealed 9-pin D; filtered for EMI, full modem control

- Infrared Port: Operates both fast IrDA mode (4 M bits/sec) and slow

IrDA mode (115 K bits/sec)

Internal Expansion Ports

- COM 3: Internal expansion bus connections, full modem control

signals, signal levels 0 to 3.3V straight from UART, no buffering,
ring signal causes unit to resume from a suspend state

- Expansion Port: Contains low 3 address bus signals, low 8 bit data

bus, bus control signals, COM 3 signals, and GPIO

Display

- High visibility LCD with paperwhite-like background, black on

white, high contrast, 10 micron pixel spacing

- 1/4 VGA, 320 x 240 pixels

- LCD has an LED backlight with adjustable brightness capability for

visibility in low lighting or changing light conditions

- LCD has extended temperature range to work better in cold or hot

environments

- Automatic contrast adjustment with temperature compensation

- Display heater for operation in cold environments; can be set to turn

on automatically when temperature is less than -3° C

- Active viewing area: 3.3" wide x 2.5" high (4.1" diagonal), 18% larger

than comparable units

- Two onboard mini stylus and a full size stylus

- Touchscreen Disable button allows you to clean the screen or

operate unit in heavy rain

- Touchscreen transmissivity of 84%, non-reflective

System Tray Indicators

Indicators are shown in the lower right corner of the Allegro CE
screen in the status tray include:

- Data storage activity

- PC card activity

- Caps lock on

- External power input