IBM 243X user manual Master Polling Protocol

Page 64

Trakker Antares 243X Hand-Held Terminal User’s Manual

Master Polling Protocol

Master Polling Mode D protocol requires the terminal to ask the downline serial device for data it may have (polling) and to request to send data to the serial device (selecting). There is no automatic polling, so your application must poll periodically for data.

Before each transmit operation, the terminal issues the SEL sequence for the device addressed and sends the data if an acknowledge is received. Before each receive operation, the terminal issues a poll sequence and waits for data or the RES character (no data is available to send).

You can configure the following serial port parameter:

•Baud rate

Point-to-Point Protocol

Point-to-Point protocol is not directly supported on the terminals. However, you can simulate this protocol by setting the protocol to Configurable and configuring these parameters:

•Baud rate

•Data bits

•Parity

•Stop bits

•Flow control

•EOM (Set EOM1 to \x0D, which is <CR>, and set EOM2 to \x0A, which is <LF>)

•LRC (Disable)

•Handshake (Disable)

With this protocol, you cannot configure values for intercharacter delay, turnaround delay, and timeout delay. This protocol supports CTS/RTS flow control only.

Polling Mode D Protocol

Polling Mode D protocol requires the host computer to ask the terminal for data it may have (polling) and to request to send data to the terminal (selecting). This protocol uses an RS-232 interface and implements the user interface through reader commands.

Polling Mode D also supports XON/XOFF and CTS/RTS flow control.

You can configure the following serial port parameters:

•Baud rate

•Flow control

3-10

Page 63 Page 65
Image 64
Page 63 Page 65
Contents 243X Hand-Held Terminal Page Contents How to Configure the Terminal Configuring the Terminal With the Menu SystemConfiguring the Terminal With the Clone Application Configuring Drives and Memory on the TerminalContents Using RF Communications on the Terminal How to Use This ChapterBooting the Terminal Troubleshooting a Locked Up ApplicationPage Before You Begin Warranty Information Safety SummaryVii Trakker Antares 243X Hand-Held Terminal User’s Manual About This ManualViii Chapter Summary Term DescriptionConvention How to Interpret the Convention Conventions for Input From a Keypad or KeyboardConventions for Bar Codes Convention Description XiiLearning About the Terminal Page What Are the Trakker Antares 243X Terminals? Learning About the 243X’s Features CGA-compatible screenOptions for the Terminals Accessories for the Terminals Unpacking the Terminal Using the Terminal’s Battery Pack Determining When the Battery Pack Is LowCharging the Battery Pack Installing the Battery PackTo charge the battery pack To install the battery pack243XU005.eps Using the Keypad Managing Battery PowerWays to Save Battery Power SituationFinding the Special Keys Typing the Characters Printed on the Keypad Using the Suspend/Resume KeyColor on Overlay To Type the Character Using the Modifier Keys Capitalizing All CharactersUsing the International Keypads Using the TE 2000 Keypads To turn the backlight on and off Using the ScreenTo change the display contrast Learning About the Status Icons Protocol Status Icon Off Status Icon BlinksLearning About the Audio Signals Beep Sequence Situation Using the Terminal’s Serial PortPort COM Port Designation for Applications Using the Terminal’s Scanner To scan a bar code label with the scannerNancy Learning About the Connector Modules 243X has two different connector module optionsConnecting an Input Device Connecting to a Serial Device or NetworkScanning Options Defining the Terminal’s Drives Using the Terminal for the First Time To use the 243X for the first timeLearning About the Terminal Page Configuring the Terminal Page How to Configure the Terminal About the ConfigurationsConfiguring the Terminal With the Menu System To access the Rakker Antares 2400 Menu SystemMain Menu Configuration Menu Trakker Antares 2400 Menu System at a GlanceAccessing Online Help Selecting Menus and CommandsTo access a help screen Filling In FieldsReader Command Menu Marking Check BoxesEntering Ascii Control Characters To enter Ascii characters for a preamble or postambleCharacters Exiting Screens and Saving ChangesTask Exiting the Menu System Configuring the Terminal With the Clone Application Configuring the RAM Drive Configuring Drives and Memory on the TerminalTo clone configuration parameters and applications Configuring Flash Memory Page Operating the Terminal in a Network Page 243X in a Wired Network How the Terminals Fit Into Your NetworkTCP/IP 2435s in Multiple Subnetworks UDP Plus 2435s in Multiple Subnetworks TCP/IP Using Serial Communications on the Terminal 2435s Communicating Across Subnetworks UDP PlusChoosing a Communications Protocol Binary ProtocolConfigurable Protocol Master Polling Protocol Using RF Communications on the Terminal Planning the Network ConnectionConfiguring the DCS Configuring the Access PointsOpenAir Radio About the Network Parameters Monitoring Network CommunicationsTroubleshooting and Maintaining the Terminal Page How to Use This Chapter Problem See This Section to Find a SolutionProblem Problems While Operating the TerminalSolution Problems While Operating the Terminal $+DC3Problems While Configuring the Terminal Problems While Configuring the Terminal Problem PG command failed Configuration was not updated Problem Problems Communicating With RF Network Devices Problem Problems While Running Applications Problems Transmitting Data Through the DCS Problems Transmitting Data Through the Serial PortProblem Solution Problems Scanning Bar Code Labels Solution Booting the Terminal Booting the Terminal on ResumeTroubleshooting a Locked Up Application Using the Boot MenuResetting the Terminal To reset the terminalCleaning the Scanner Window and Terminal Screen To clean the scanner window and terminal screenSpecifications Page Physical and Environmental Specifications Terminal DimensionsPower Specifications Electrical SpecificationsTemperature and Environmental Specifications ScreenKeypad Options Application OptionsSpecifications 802.11b Radio SpecificationsOpenAir Radio Specifications Wired Data CommunicationsPin Assignments for COM1 Pin AssignmentsInput Devices and Cables Pin Assignments for the Input Device Connectors Specifications aPage Index Page CSymbols and Numbers IndexTrakker Antares 243X Hand-Held Terminal User’s Manual Click, audio signals, 1-20 conventions, defined Trakker Antares 243X Hand-Held Terminal User’s Manual Index Trakker Antares 243X Hand-Held Terminal User’s Manual Terminal Emulation Programmer’s Guide

243X specifications

The IBM 243X is part of IBM's OBS (Office of Business Solutions) series, widely recognized for its robust performance and innovative technologies designed for enterprise-level data processing and management. This series is well-suited for organizations demanding reliability, scalability, and efficiency in their operations.

One of the standout features of the IBM 243X is its powerful processing capability. It is equipped with advanced multi-core processors that enable it to handle multiple tasks simultaneously, making it ideal for data-intensive applications such as data analysis, transaction processing, and enterprise resource planning (ERP) systems. The architecture of the IBM 243X ensures optimized performance with minimal latency, ensuring that businesses can operate seamlessly even during peak loads.

In terms of memory and storage, the IBM 243X supports a vast amount of RAM and offers flexible storage options. This allows organizations to customize their configurations based on their specific needs. The device can handle large databases and supports fast access speeds, which is vital for real-time data processing. Additionally, IBM’s proprietary storage technologies ensure data integrity and quick retrieval, contributing to overall operational efficiency.

Safety and security are paramount in today’s digital landscape, and the IBM 243X incorporates several advanced security features. With built-in data encryption, secure boot processes, and compliance with international security standards, the IBM 243X safeguards sensitive business information against unauthorized access and potential cyber threats.

Customization and scalability are also key characteristics of the IBM 243X. Organizations can easily scale their infrastructure up or down based on evolving needs. The modular design allows for added components, which can be integrated without disrupting existing operations, ensuring maximum uptime and productivity.

Furthermore, the IBM 243X leverages cloud integration, enabling businesses to seamlessly connect with various cloud services for backup, disaster recovery, and collaborative work environments. This flexibility positions the IBM 243X as a future-proof investment, offering organizations the ability to adapt to changing technological landscapes.

In summary, the IBM 243X stands out with its robust processing capabilities, extensive memory and storage options, advanced security features, and flexibility for customization and scalability. These characteristics make it an invaluable tool for businesses seeking efficiency, reliability, and performance in their operations.
Top Page Image Contents