SunLync Credit Card Terminal Install Guide

This article provides a step-by-step overview of how to install and configure credit card terminals for use with SunLync. It explains the difference between encrypted and non-encrypted card readers, how to determine which type you have, and how SunLync handles both keyboard-encrypted and legacy keyboard-emulation devices. The guide also outlines how to select your payment processor—either Cayan (GPI) or SlimCD—and where to access the corresponding Back Office settings for each processor.

The article includes instructions for setting up Genius (GPI) terminals using an IP address and configuring SlimCD legacy terminals through the SlimCD Back Office settings. Additionally, it covers receipt-printer requirements, including how to assign a COM port using the Star TSP100 Configuration Utility and how to enable receipt printing within Sun.ini. Overall, the article walks users through the essential configuration steps needed to ensure card terminals and receipt printers operate correctly on each SunLync workstation.