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Description

The UMD Model 331 Series Custom Desk Top LCD Terminals 
are part of the Unique Micro Design ProtoLink 
Architecture 
family of products. They have 20 fully programmable keys 
arranged in a 5 x 4 matrix. Low travel keyswitches with 
"tactile feel" are sealed behind a custom 
polycarbonate legend overlay or laminated adhesive paper 
for small volume applications. Each of the keys may be 
individually programmed with multiple keystroke 
sequences. Multiple shift levels are available for each 
key. 5 programmable LEDs are also available. This ensures 
total flexibility of layout and means it can be tailored 
to suit your software exactly. The Model 331 is 
housed in a wedge shaped plastic enclosure . The Model 331 Series 
also feature inbuilt keyboard wedge, two serial ports, 
backlit LCD display magnetic card reader interface and 
bar code decoder. This means all your requirements are 
integrated into a single, space saving package. The 
liquid crystal display (LCD) incorporates 2 lines of 16 
characters. In serial mode, data is sent via the serial 
port. All interfacing is provided via a DB25 socket 
(other options available). A plug pack is required to 
power the terminal in serial mode. In keyboard mode, 5V 
DC is supplied from the PC. A serial connection is still 
required to the PC to direct data to the display.

Obsolete Product Line - Contact UMD Sales for Alternatives

Features

Features (listed items)

Specs Table (in html)

Specifications
<table border="1" cellpadding="3" cellspacing="0" width="90%" align=center> 
<tr>
<td width="36%">Physical size</td>
<td width="64%">140 (w) x 195 (d) x 35 at front, 58 rear (h) mm.</td>
</tr>
<tr>
<td>Enclosure/Weight</td>
<td>ABS Plastic / 0.5kg with standard DB25 connector</td>
</tr>
<tr>
<td>Power source</td>
<td>Via keyboard interface or external plug pack (5Vdc optional 9Vdc)</td>
</tr>
<tr>
<td>Keyboard interface</td>
<td>PC, AT or PS/2 protocol (others available upon request)</td>
</tr>
<tr>
<td>Key matrix</td>
<td>20 in 4 x 5 matrix</td>
</tr>
<tr>
<td>Reliability</td>
<td>1,000,000 operations</td>
</tr>
<tr>
<td>Display Unit</td>
<td>Liquid Crystal Display with LED backlight, 2 lines by 16 characters
 3 mm character height</td>
</tr>
<tr>
<td>LED Indicators</td>
<td>5 user LED�s amber color user programmable</td>
</tr>
<tr>
<td>Serial interface</td>
<td>Two RS-232C (DTE) ports </td>
</tr>
<tr>
<td>Baud rates</td>
<td>300, 1200, 2400, 4800, 9600, 19.2K, 38.4K</td>
</tr>
<tr>
<td>Handshake</td>
<td>DTR, XON/XOFF</td>
</tr>
<tr>
<td>Bar Code Decoder</td>
<td>Digital wand type</td>
</tr>
<tr>
<td>Symbologies</td>
<td>Code 128, code 39, interleaved 2 of 5 and EAN/UPC</td>
</tr>
</table>

Specs Table (in magic table format)

Price Details: (use cut and paste to insert tabs)