> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide.md).

# P400/P400 Plus/P400 Dual MSR Installation Guide

This guide is the primary source of information for setting up the P400/P400 Plus/P400 Dual MSR device.

## Audience

This guide is intended for the users involved in P400/P400 Plus/P400 Dual MSR device installation.

## Organization

This guide is organized as follows:

* [Device Overview](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/device-overview.md) — Provides an overview of the P400/P400 Plus/P400 Dual MSR device.
* [Device Setup](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/device-setup.md) — Provides instructions on configuring the P400/P400 Plus/P400 Dual MSR device.
* [Specifications](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/specifications.md) — Provides the power requirements and dimensions of the P400/P400 Plus/P400 Dual MSR device.
* [Maintenance and Cleaning](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/maintenance-and-cleaning.md) — Explains how to maintain the device.
* [Service and Support](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/service-and-support.md) — Furnishes information on contacting local Verifone representatives or service providers, as well as details on ordering accessories or documentation from Verifone.
* [Accessories and Cables](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/accessories-and-cables.md) — Provides the range of accessories and cables with corresponding part numbers.
* [Troubleshooting Guidelines](/hardware-products/hardware/engage-devices/pxxx-series/p400/p400-p400-plus-p400-dual-msr-installation-guide/troubleshooting-guidelines.md) — Provides guidance for addressing issues that may arise during device installation.

## Related Documentation

To learn more about the P400/P400 Plus/P400 Dual MSR device, refer to the following documents associated with the Verifone Part Numbers (VPNs).

| Document                                                   | VPN           |
| ---------------------------------------------------------- | ------------- |
| P400 and P400 Plus Certifications and Regulations          | DOC435-001-EN |
| P400 Quick Installation Guide                              | DOC435-002-EN |
| P400 Stylus Quick Installation Guide                       | DOC435-007-EN |
| P200/P400 Reference Guide                                  | DOC435-004-EN |
| P200/P400 Mounting Adapter Quick Installation Guide        | DOC435-005-EN |
| Engage Low-Profile Privacy Shield Quick Installation Guide | DOC000-020-EN |
| Engage Standard Privacy Shield Quick Installation Guide    | DOC000-021-EN |

## Conventions

The following table describes the conventions and provides examples of their use.

| Convention | Meaning                                                                             | Example                                                         |
| ---------- | ----------------------------------------------------------------------------------- | --------------------------------------------------------------- |
| Blue       | Text in blue indicates terms that are cross-referenced.                             | See Conventions.                                                |
| NOTE       | The bulb icon is used to highlight important information.                           | If exchanging cables use a Verifone-approved cable.             |
| CAUTION    | The caution symbol indicates possible hardware or software failure or loss of data. | Avoid placing metallic objects at the front of the card reader. |
| WARNING    | The lightning symbol is used as a warning when bodily injury might occur.           | For safety, do not string cables or cords across a walkway.     |

***Document Reference: DOC435-012-EN-A, Revision A00 (Verifone Part Number)***


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