4System Back-Up

1.How the IRC back-up system works

The IRC system incorporates a back-up system.

One of the satellites can be designated to serve as a back-up master.

For the setup of a back-up master in your IRC system, please consult your authorized SHARP dealer.

When both the master and back-up master are in order, the system works in the following sequence:

Master

Back-up master

1) Updated data

2) Acknowledgment signal

Satellite

3)Updated data

4)Acknowledgment signal

1)Each satellite sends updated GLU data (and clerk data*) to the master.

2)The master receives the data and sends back an acknowledgment signal to the satellite.

3)The satellite sends the updated data to the back-up master.

4)The back-up master receives the data and sends back an acknowledgment signal to the satellite.

*Only for the centralized clerk file system

If the master breaks down, the back-up master serves as the master after a master declaration is made at the back-up master. If the back-up master breaks down, updated data transmission to it can be stopped by a master declaration at the master. When the master or back-up master recovers from the breakdown, it resumes its function as the master or back-up master by the recovery declaring operation.

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Sharp UP-3500 instruction manual System Back-Up, How the IRC back-up system works

UP-3500 specifications

The Sharp UP-3500 is a sophisticated, high-performance point-of-sale (POS) terminal that has been designed with the modern business environment in mind. Known for its durability and reliability, the UP-3500 is particularly popular among retailers and hospitality businesses as it can seamlessly manage various aspects of sales processing and inventory management.

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