Metrologic IS421X ScanGlove Guía de usuario descargar pdf (Pagina 20)

IS4215 Pin Assignments

The IS4215 scanner terminates with a 25-pin male D-type connector. The pin

numbers impress on the connector:

Pin Signal Name Function

7 Ground A power ground that can handle a 500-

milliampere load.

13 Laser/ A +5 VDC input to the head. Its use is to

Motor Control start the flipper motor and signal processor,

and enable the visible laser diode (VLD).

This can be a TTL level signal and require

less than 1 milliampere of current.

18 No Connect

19 Power Primary laser diode/motor power input. +5

VDC should be present at this pin and it can

supply up to 125 mA when enabled by the

signal at pin 6.

20 No Connect

23 Proximity Detect The proximity detect is a grounding switch that

is active while an object is in the specified

detection field. The controlling computer should

provide a +5 VDC pull up. Ground the +5 VDC

pull up when the proximity detect activates.

This shows that an object has moved within

scanning range. We recommend that this

signal debounce for approximately 30 milli-

seconds.

Note: We did not make the design of this scan

head to have the continual enabling of the

laser as if the scanner is in a perm-anent

mounting fixture.

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Metrologic IS421X ScanGlove Guía de usuario Pagina 20