Introduction

Worth Data's WDR Readers are versatile serial bar code readers designed for use with all micro and minicomputers. The WDR Model R22 can be attached between your computer and a terminal, sending bar code data along with keyboard data with LINUX, UNIX and PICK.

The R22 WDR can be ordered a variety of scanners, including CCD and Laser scanners and can automatically read and discriminate between Code 39, Full ASCII Code 39, 2 of 5, I 2 of 5, UPC-E, UPC-A, EAN-8, EAN-13, Codabar, Code 93, MSI, Plessey, RSS-14, LabelCode 4&5, StorageTek Tape Code, Code 128, UCC-128, and EAN-128..

Up to 32 WDR R22 Readers can be connected to a dedicated serial port, with each unit accessed separately through polling from your computer.

If you are installing the WDR Reader on a dedicated PC serial port (as opposed to installing it between a PC serial port and a terminal) you should consider Worth Data’s program PortKey.

WDR Reader Components

The contents of your WDR Reader shipment should include the following:

1.A WDR R22 decoder box plus:

a.Velcro strips which can be used to conveniently attach the reader to the side of your computer, monitor or desk.

b.If ordered, one of the appropriate serial Cable Selections:

F34 null-modem female DB-25 cable

F36 straight-through female DB-9 cable

F45-1 serial “Y” cable for connection between terminal and host

c.A scanner (F52 wand, LI50 CCD, LZ300 Laser or LZ400 Laser)

d.A scanner holder.

e.A 5-volt power supply (Don't use a non-Worth Data power supply; it will fry the board!).

f.A laminated Reader Setup Menu sheet (or slot scanner card deck)

g.A CD-ROM with the Windows WDR Test Program on it.

WDR Reader Installation

Insert the scanner's telephone- style connector into the WDR Reader's scanner port. You'll hear a click when it is properly inserted. (If you have a MagStripe slot scanner, see the Users Guide for installation instructions.)

Connect the power adapter to the WDR Reader. You can then plug the Power Adapter into an outlet. You'll hear three beeps

as the reader performs its self-test, and the LED will flash red to green.

WDR Reader Installation - PC Serial Port

The WDR Reader can be directly attached to a spare serial port as shown below. Your software will need to read the serial port as a separate device, unless you're using an IBM-compatible computer and Worth Data’s PortKey software, which makes serial-port data look to your computer as if it had been typed at the keyboard.

If you specified a 25-pin null-modem cable (part number F34) or a 9-pin cable (part number F36) when you placed your order, you can cable direct- ly from the “SERIAL” port to the matching serial port on your computer.

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Worth Data RS-232 quick start Introduction, WDR Reader Components, WDR Reader Installation PC Serial Port

RS-232 specifications

Worth Data RS-232 is a leading solution in the realm of data communication, particularly known for its robust capabilities in connecting various devices through Serial interfaces. The RS-232 standard has been around since the 1960s and remains relevant due to its simplicity and efficiency in wired communication. Worth Data has effectively leveraged this longstanding technology to offer a suite of products that cater to industrial, commercial, and personal use.

One of the primary features of Worth Data RS-232 is its reliable transmission of data over a considerable distance. RS-232 supports communication distances of up to 50 feet at a baud rate of 9600 bps, which is often sufficient for many applications. Enhanced versions can support longer distances with specific configurations. This makes it particularly suitable for environments where devices are not located in close proximity.

Another key characteristic is the versatile compatibility of Worth Data RS-232 interfaces. The technology is designed to work seamlessly with a variety of equipment, including computers, printers, point-of-sale systems, and industrial machinery. This interoperability is vital for businesses looking to integrate new devices into existing systems without significant modifications.

Worth Data also places a strong emphasis on the robustness of its RS-232 products. The devices are built to withstand the rigors of industrial environments, often featuring durable housings and components that protect against dust, moisture, and temperature variations. This resilience ensures that the communication remains stable and the equipment operates efficiently, even in challenging conditions.

In terms of technologies, Worth Data RS-232 incorporates error checking and correction features that enhance the integrity of data transmission. Protocols allow for the detection of transmission errors, ensuring that the data received is accurate and reliable. Furthermore, the use of standard connectors facilitates easy installation and maintenance, as users can quickly replace connectors without needing specialized training.

Another noteworthy aspect of Worth Data RS-232 is its straightforward implementation. Unlike more complex communication protocols, RS-232 requires minimal configuration, making it accessible for users with varying levels of technical expertise. This simplicity also translates into cost-effectiveness, as businesses can deploy RS-232 solutions without the need for extensive training or support.

In summary, Worth Data RS-232 stands out due to its reliable performance, extensive compatibility, and rugged construction. Its longevity in the market can be attributed to the continued need for straightforward, effective data communication solutions across a variety of industries. As technology evolves, Worth Data reaffirms its commitment to maintaining the relevance of RS-232 through innovative designs and dependable service.