# Solution Overview (/global/en/docs/Terminal/Solution-Overview)

## PayExplorer Connect SDK Solution Overview

> **INFO**
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> Quick Access to Our Semi-Integrated Payment Solution.

By integrating PayExplorer Connect SDK, you can connect POS applications to the newland payment terminal, embedding payment and service capabilities into business systems.

### Solution Architecture

![](https://docs.newlandnpt.us/assets/_shared/7e22baea55fa/epos-pos-na.svg)

### Role Description

**EPOS**: Smart Point-of-Sale terminal.

**EPOS application**: The business application running on the EPOS, responsible for product management, order generation, and initiating payment instructions via integration with the PayExplorer Connect SDK.

**PayExplorer Connect SDK**: As middleware, the SDK is embedded within the EPOS application. It encapsulates the underlying communication protocol with the payment terminal, providing a simplified API for the EPOS program and acting as a "bridge" between the EPOS and the payment terminal.

**NPT Terminal**: The intelligent payment device provided by NewlandNPT, responsible for executing specific payment operations such as card swiping, QR code scanning, and password input, and returning financial processing results.