PSC QS2500 manual RS-232 Advanced Features

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RS-232 Advanced Features

Flow Control

None: The communication uses only TxD and RxD signals, without regard for any hardware or software handshaking protocol.

RTS/CTS: If the QS2500 wants to send the bar code data to the host com- puter, it will issue the RTS signal first, wait for the CTS signal from the host computer, and then perform the normal data com- munication. If there is no replied CTS signal from the host com- puter after the timeout (response delay) duration, the QS2500 will issue five warning beeps.

Xon/Xoff: When the host computer is unable to accept data, it sends an Xoff code to inform the QS2500 to suspend data transmission and an Xon to continue.

ACK/NAK: When the ACK/NAK protocol is used, the QS2500 waits for an ACK (acknowledge) or NAK (not acknowledge) from the host computer after data transmission. It then resends the data in response to a NAK.

PSC Aux. Port: This configures the QS2500 flow control to connect to the Auxiliary (AUX) port of some PSC omni-directional scanners. The QS2500 will assert RTS high to signal the scanner that data will be sent immediately after RTS is asserted. When connecting to a PSC scanner aux. port, additional programming is required to enable transmission of code IDs for all symbologies to be scanned.

Mode B: This configures the RS-233 flow control to communicate to some Wincor (SNI) terminals.

Intercharacter Delay

This is the delay time between outputs of data character. It is the same as the intercharacter delay of the keyboard wedge.

Block Transmission Delay

This is the delay time between outputs of bar code data. It is the same as the block transmission delay of the keyboard wedge.

Product Reference Guide

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Contents Page Patents Installation Appendix E Alphanumeric Characters RS-232 InstallationKeyboard Wedge Wand EmulationUSB Scan the alphanumeric characters located in Appendix E Programming the QS2500Interfaces Resetting the QS2500Option Bar Code Alphanumeric QS2500 Intercharacter Delay 99 10 msec Keyboard Wedge Default Baud Rate None Parity Odd Even RS-232 Advanced Features Response Delay IBM Interface 46XX/USB IBM 46xx Code 39 Conversion IBM OptionsIBM Host Commands Standby Duration Scanning ModeSame Bar Code Delay Time ScanningMultifield Scan Double ConfirmDisable Multifield Scan Enable Option Alphanumeric Entry Beep/Tone/LED Settings Beep & LED after decode Label Editing includes Prefix/Suffix Option Bar Code Option Bar Code Alphanumeric Insert Data Group Disable ID Transmission Enable UPC-A Symbology SettingsUCC/EAN UPC-E Truncate Ending FfH Ascii code EAN-13 Disable Checksum Transmission Enable EAN-8 Ascii Code Use Global Min Minimum Code Length Interleaved 2 Use Global Min Code Length Industrial 2 Matrix 2 Ff hexB Codabar ABCD/ABCD Data Checksum UCC/EAN-128 Disable Append Enable Ff hex Ascii Enable two digits Data Digits Variable Checksum1 Optional MSI/Plessey Mini UK/Plessey Disable Enable Checksum Verification Checksum Transmission Telepen Standard 2 Disable Enable Code 16K Option Bar Code Alphanumeric Italian PharmaCode RSS Expanded RSS Limited RSS-14 Checksum Code Code Type Appendix Default SettingsEAN-8 Appendix B Bar Code Samples1 2 + B 2 3 4 5 B c d 7 8 9 0 B c d Italian PharmaCode RSS Expanded RSS Limited RSS-14 Appendix C Ascii Codes Example Ascii a = QS2500 Start Program Standard Parameter Setting List Appendix D Parameter Setting ListAppendix E Alphanumeric Characters Declaration of Conformity PSC Inc
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