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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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<strong>JANUS</strong> <strong>2020</strong> <strong>Hand</strong>-<strong>Held</strong> <strong>Computer</strong> User’s Manual (<strong>4MB</strong>)<br />

G-24<br />

Storage mode<br />

A power management mode on the reader that lets you preserve the life of the<br />

lithium bridge battery. Place the reader in Storage mode if you will not use the<br />

reader for 1 week or more. While the reader is in Storage mode, the NiCad<br />

battery pack must be removed; otherwise, the reader slowly drains the battery<br />

pack and bridge battery. All data in conventional memory is lost when the<br />

reader enters Storage mode.<br />

Suspend mode<br />

The mode the <strong>JANUS</strong> reader enters when you press to turn off the reader. In<br />

Suspend mode, the reader saves all memory and turns off the power to most<br />

hardware, including the CPU.<br />

symbology<br />

See bar code symbology.<br />

Text mode<br />

One of two display modes on the reader. By default, the reader uses Text mode<br />

and you can set the display size to 25 x 80, 16 x 20, 8 x 20, 16 x 10, and 8 x 10. If<br />

your application only recognizes DOS mode, you must use a display size of<br />

25 x 80 or 25 x 40. The other display sizes are not DOS standard and are for use<br />

with custom applications. Text mode also supports two character attributes:<br />

blinking and reverse video. Contrast with graphics mode.<br />

timeout<br />

A defined time allowed for an event after which an alternative action is taken.<br />

timeout delay<br />

The time the reader waits between received characters before an I/O<br />

(input/output) error occurs.<br />

TSR program<br />

Terminate and stay resident program. A DOS program that remains loaded in<br />

conventional memory after you have terminated it. You must explicitly unload<br />

the TSR if you want to free the conventional memory it is using.<br />

UART buffer<br />

Universal Asynchronous Receiver/Transmitter buffer. The UART buffer<br />

contains bytes of data being sent or received by the reader. The FIFO control<br />

register controls how the UART buffer operates.

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