Birch - Survey ， Design & Integrated October 03,2007 Birch Technology Inc.

Birch - SurveyBirch - Survey ，， Design & Design & Integrated Integrated

DSP-850 VFD display enhancement DSP-850 VFD display enhancement

October 03,2007

Birch Technology Inc.

Birch Technology Inc. Birch Technology Inc.

DSP-850 Specification

Vacuum fluorescent display ( VFD )

• Data display : 40 characters (20 characters per line, 2 lines)

• Character type: 96 alphanumeric / 13 kinds of international character sets / 1 kind of user defined character

• Character font : 5 x 7 dot matrix, 9.0mm x 5.25mm,

User-defined characters and messages can be downloaded.

• Display frame view angle -5 - 60 degrees and 270 rotatable

• MTBF : 25,000 hours (power on line)

• Display color : Blue green

• DSP-850 12V OPOS supported VFD customer display

• Power Requirement : DC +12V ~ +19V ; 3 ~ 6W

• Selectable interface of Serial interface with pass through capability and USB interface

• Power source +12V - +24V

• Dimension : Base 19.7 x 10 cm (W x D) ; 19.5 / 28.5 / 56 cm (H)

• Operation : 5°C ~ 45°C ; 30% ~ 85% relative humidity

New features enhance on pass through function for serial interface and provide USB interface


VFD I/O Board

CN1, CN7 24V Power supply pass through connector

CN2, RS-232 connector connect to PC /Host

CN3 RJ45 connector connect to VFD display panel

CN4 USB connector connect to PC/Host

CN5 RS-232 connector connect to printer

CN6 12V DC Jack connector connect Power adapter

CN1CN2

CN6CN5

CN4CN3

CN7


VFD I/O Board

Bottom view

Base modification : I/O board enhancement to support serial pass through function

and USB interface


Function

New features enhance on 1.Selectable interface of Serial interface with pass through capability

and USB interface and Handshaking

2.Power requirement:DC+12V ~ +24V;3~6W (standard in +12V)

Power supply +12V ~ +24V to VFD, Printer or other device

Hand shake is a confirmable function when signal is transmitted from transmission

end to receipt end.

A process of advance control signal or character is exchanged transmission

during both of device or system to be linked.

Pass through, a signal transmission, is gauged by MCU which assigns to one of devices on the transmission line.


System Block Diagram DSP-850 (Original)

VFD

12V Power adapter

VFD display panel

PC/Host

#52210116

#52211010


System Block Diagram DSP-850 (enhancement)

FT Stand alone VFD

VFD

24V Receipt printer 12V Power adapter

VFD display panel

PC /Host PrinterPC/Host 24V Power adapter

#52210116


System Block Diagram DSP-850

VFD

12V Power adapter

VFD display panel

PrinterPC/Host

#52210116

Birch - Survey ， Design & Integrated October 03,2007 Birch Technology Inc.

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