Overview
This page lists the known limitations and constraints when integrating an Electronic Cash Register (ECR) with Maya Terminals. Understanding these boundaries will help you design a more reliable integration and avoid unexpected issues in Production.
Supported Maya Terminals
ECR integration is supported in two terminal types: Sunmi P2 and PAX A920.
- The core specifications (messaging format, request/response handling) are identical across both terminals.
- You can swap between Sunmi P2 and PAX A920 without changing your integration logic.
Terminal-specific Limitations
| Features/Capabilities | PAX A920 | Sunmi P2 |
|---|---|---|
| Wireless ECR | Supports “wireless” operation when paired with the L920 cradle dock | Not supported |
| Custom Ads and Image Display | Supports displaying custom ads or images on the terminal | Not supported |
| USB Drivers | Requires a specific USB driver | Requires a specific USB driver |
OS Compatibility
For ECR Integration, Maya supports the following operating systems:
- Windows
- Linux
- macOS
Always install the correct USB driver for your terminal type and operating system. Incorrect drivers may cause communication failures.
FAQs
Q: Can I use the same codebase for both Sunmi and PAX?
A: Yes. The core specifications are identical. Only terminal-specific features (wireless mode, ads) differ.
Q: Do I need separate drivers for each OS?
A: Yes. Always match the driver to both the terminal and the operating system.
Next Steps
Now that you’re familiar with the supported terminals and OS compatibility, proceed to the next stage of your ECR integration:
- Learn how asynchronous and synchronous flows work to ensure your ECR integration communicates effectively with the Maya Terminal, see: Asynchronous and Synchronous Flows in ECR Integration