APPENDIX A — INTERFACING XEROX PRINTERS

Page A-3

The 5250 ALLY provides several methods that allow SCS and XES documents to coexist in the same environment.

Coexistence

In order to eliminate the formatting conflicts that can arise when using XES commands to control document formatting, the 5250 ALLY provides two special modes of operation, one called PFS (Programmable Function String) suppression mode, and the other called FF (Form Feed) suppression mode. These two modes of operation can act independently or in unison.

When the 5250 ALLY receives SCS commands from the host System, it sends PFSs to the printer to simulate the behavior of the IBM printer it is emulating. PFSs contain the XES commands used to control the printer.

When the 5250 ALLY is in one of its PFS suppression modes, it continues to receive and interpret SCS commands from the host System; however, it does not send the required PFSs to the printer. For the duration of PFS suppression mode, the System effectively loses the ability to control document formatting, allowing full control of the formatting via XES commands. When PFS suppression is active, the only PFSs sent to the printer are the INIT, CR, LF and FF PFSs.

When the 5250 ALLY is in one of its FF suppression modes, Form Feed characters received from the host System are ignored. This allows the user to fit a large number of XES commands on one physical page at the printer, even though the System thinks it is printing multiple pages.

Delimiting XES Jobs

The 5250 ALLY provides two different methods of initiating and terminating PFS and FF suppression based upon printable trigger sequences. Auto PFS/FF suppression uses the natural format of an XES mode “job” to automatically turn on PFS and/or FF suppression at the beginning of an XES command data stream, and turn the suppression off at the end of the XES command data stream.

For XES jobs that do not conform to conventions, and for compatibility with existing applications and documents, the 5250 ALLY also supports Logical Not (¬) commands that can be used to independently initiate and terminate PFS and FF suppression modes.

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I-Data 5250 ALLY manual Coexistence, Delimiting XES Jobs, Appendix a Interfacing Xerox Printers
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5250 ALLY specifications

The I-Data 5250 ALLY is a sophisticated device that combines cutting-edge technology with user-friendly features to enhance data management and interaction in various environments. Designed for flexible use, the ALLY caters to industry needs ranging from logistics and retail to healthcare and fieldwork.

One of the standout features of the I-Data 5250 ALLY is its robust processing power, which ensures seamless multitasking capabilities. Equipped with a high-performance processor, the device can handle complex applications and large data sets efficiently. This processing speed is critical for businesses that require rapid data collection and analysis.

The device boasts an impressive display that optimizes user experience. The high-resolution screen provides clear visibility under various lighting conditions, making it suitable for outdoor use. Additionally, the touchscreen interface makes navigation intuitive and enhances operational efficiency, reducing training time for new users.

Connectivity is another significant aspect of the I-Data 5250 ALLY. It supports multiple communication options, including Wi-Fi, Bluetooth, and cellular connections. This versatility ensures that users can stay connected regardless of their location, facilitating real-time data sharing and collaborations.

In terms of durability, the I-Data 5250 ALLY is built to withstand harsh conditions. It features a rugged design that is resistant to drops, dust, and water, making it an ideal choice for industries that operate in challenging environments. This durability extends the device's lifespan and reduces the need for frequent replacements.

Security is a paramount concern in today’s data-driven world, and the I-Data 5250 ALLY addresses this with advanced security features. It includes customizable user authentication protocols and data encryption mechanisms to protect sensitive information from unauthorized access and breaches.

Battery life is another critical feature of the I-Data 5250 ALLY. The device is equipped with a long-lasting battery that provides extended use on a single charge. This allows users to operate the device throughout their shifts without worrying about recharging, further enhancing productivity.

In summary, the I-Data 5250 ALLY stands out with its powerful processing capabilities, high-resolution display, robust connectivity options, rugged durability, and advanced security features. These characteristics make it an ideal tool for data collection and management in various sectors, where efficiency and reliability are essential. The I-Data 5250 ALLY is a testament to modern technological advancements, catering to the evolving needs of businesses today.
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