# Introduction

The purpose of this document is to describe the implementation of the Key Loader application. The Key Loader application is a generic application which supports all the commands supported by previous key loaders for Moneris, Chase, GPC/Scotia bank, ACCEO and FDMS.

The information in this document covers instructions specific to the Engage Terminals.

This document is intended for users who want to perform key loading using the XPI Generic Key Loader application.

### Definition of Terms

This table lists the terms and abbreviations that are used throughout this document:

| Term     | Description                                                                                        |
| -------- | -------------------------------------------------------------------------------------------------- |
| CAM      | Commerce Acceptance Module                                                                         |
| COM      | Communications Port                                                                                |
| MAC      | Message Authentication Code — A short piece of information that is used to authenticate a message. |
| SAC      | Command Module (Surrogate Application)                                                             |
| Terminal | Terminal is a term used interchangeably with host device and master device in this document.       |

### Related Documents

* EPP Interface Specification
* XPI Generic Keyloader Release Notes
* SC5000VeriShieldSecurityScripts.pdf
* DOC00501\_Operating\_System\_Programmers\_Manual.pdf
* Verix eVo Volume I-III


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