Mustek PP3000 Manual de usuario descargar pdf (Pagina 34)

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PST-7000 series user’s manual – BRIEF INTRODUCTION

INTERNAL KB WEDGE BARCODE

SCANNER

The PST keyboard has been designed to provide a daisy chain interface (DCI)

capability such that it is possible to connect a number of suitable input devices in

series with each other. In this way each device can communicate with the application

software, as if it were an actual keyboard at which someone had typed the characters.

The terminal is supplied with two devices already in the daisy chain. The first

is the programmable keyboard followed by the magnetic stripe reader (MSR) if fitted.

It is possible to add additional devices to this daisy chain either as an internal

or external connection (ref. Fig. 3-11) subject to a maximum of 5 devices (this is

dependent on the electrical characteristics of the devices and may be less than 5

devices).

Internal Connection

This is the preferred method for a permanent connection and would typically

be used for bar code readers.

To access the internal connection you must remove the keyboard. To do this

first unlock the front door lock and then remove the two mounting screws from the

underneath of the chassis located just behind the front edge of the terminal. Once

these screws have been removed it is possible to lift the front edge of the keyboard

housing and then rotate the keyboard “up and back”. This then exposes the keyboard

controller on the underside of the keyboard (ref. Fig. 3-12). Connector A is normally

inserted into socket B (on controller C) when the terminal is supplied without an

additional DCI device. To add an internally connected DCI device A should be

removed from B and the new device inserted between them. Match the top edge of the

programmable keyboard with rear cabinet of main unit and close it to the bottom

chassis. Before closing it, the cables must be fixed to the bottom chassis with a cable

tie and a piece of cable cover at side of bottom chassis must be taken away. Mount

back the two screws from bottom side then the installation for internally connected

KB wedge device is done.

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Mustek PP3000 Manual de usuario Pagina 34