> 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/m4xx-series/m425/m425-installation-guide/device-setup.md).

# Device Setup

This chapter describes the setup procedure for the M425 in the following sections.

* [Device Location](#device-location)
* [PIN Protection Measures](#pin-protection-measures)
* [Inside the Shipping Carton](#inside-the-shipping-carton)
* [ Device Features](#device-features)
* &#x20;[Connection Ports](#connection-ports)
* &#x20;[MSAM Card](#msam-card)
* [Micro SD (TF) Card](#micro-sd-tf-card)
* &#x20;[Powering the Device](#powering-the-device)
* &#x20;[Smart Card Reader](#smart-card-reader)
* &#x20;[Magnetic Card Reader](#magnetic-card-reader)
* [Contactless Smart Card Transaction](#contactless-smart-card-transaction)
* &#x20;[M425 Wi-Fi/BT Support](#m425-wi-fi-btsupport)
* &#x20;[Optional Accessories](#optional-accessories)

## Device Location

The following are guidelines used to select an ideal location for the device.

* Select a location convenient for both the merchant and cardholder.
* Select a location near a power outlet, POS, ECR, or computer connected to the device. For safety, do not string cables or cords across a walkway.

### Environmental Factors

* Do not use the device where there is excess heat, dust, humidity, moisture, caustic chemicals or oils.
* Keep the device away from direct sunlight and anything that radiates heat, such as a stove or a motor.
* Do not use the device outdoors.

### Electrical considerations

* Avoid using this product during electrical storms.
* Avoid locations near electrical appliances or other devices that cause excessive voltage fluctuations or emit electrical noise (for example, air conditioners, electric motors, neon signs, high-frequency, or magnetic security devices, or computer equipment).
* Avoid using the device near water or in moist conditions.
* Disconnect the device from its POS device before cleaning.

{% hint style="danger" %}
Do not use the device near water, including a bathtub, washbowl, kitchen sink or laundry tub, in a wet basement, or near a swimming pool to avoid shock or damage.

*N'utilisez pas l'appareil près de l'eau, y compris une baignoire, un lavabo, un évier de cuisine ou une cuve à lessive, dans un sous-sol humide ou près d'une piscine pour éviter les chocs ou les dommages.*
{% endhint %}

## PIN Protection Measures

Use the following techniques to provide effective screening of the PIN-entry keypad during the PIN-entry process. You can use these methods in combination, although in some cases a single method might suffice.

* Position the device in such a way as to block visual observation of the PIN-entry process so that it is angled in such a way that PIN spying is difficult.
* Install the PED on an adjustable stand that allows consumers to swivel the device sideways and/or tilt it forward/backward to a position that makes visual observation of the PIN-entry process difficult.
* Position in-store security cameras so that the PIN-entry keypad is not visible.
* This risk of shoulder-spying during PIN entry can be significantly reduced by installing the optional approved privacy shield.
* Verifone also recommends instructing the cardholder regarding safe PIN-entry or using the Privacy Shield for secure PIN entry by installing a Privacy Shield (optional).

## Inside the Shipping Carton

Open the shipping carton and carefully inspect its contents for possible tampering or shipping damage. The device is a secure product. Tampering causes it to cease to function or to operate in an unsecured manner.

### Unpacking the Shipping Carton

To unpack the shipping carton:

{% stepper %}
{% step %}
Carefully inspect the shipping carton and its contents for possible tampering or damage.
{% endstep %}

{% step %}
Validate the authenticity of the sender by verifying the shipping tracking number and other information located on the product order paperwork.
{% endstep %}

{% step %}
Remove and inspect the contents of the shipping carton. The device ships in multiple configurations, the carton may include all or any of the following:

* Device
* Screw
* Additional Accessories.

<figure><img src="/files/ecIk01UW67c1sOBVBg9B" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Power supply and connectivity cables are part of additional accessories that can be ordered separately.

Refer to Accessories and Cables section for part numbers.
{% endhint %}
{% endstep %}

{% step %}
Remove all plastic **wrapping** from the device and components.
{% endstep %}

{% step %}
Remove the clear protective film from the display.
{% endstep %}

{% step %}
Inspect the terminal for possible tampering; see how to identify signs of tampering in the section [Periodic Inspection.](#periodic-inspection)
{% endstep %}

{% step %}
Save the shipping carton and packing material for future repacking or moving of the device.
{% endstep %}
{% endstepper %}

{% hint style="danger" %}
Do not use a tampered or damaged unit. The device comes equipped with tamper-evident labels. If a label or component appears damaged, please notify the shipping company and your Verifone service provider immediately.
{% endhint %}

## Periodic Inspection

Periodically inspect the terminal for possible tampering. Signs of tampering include:

* Overlays in the PIN pad area.
* Wires protruding out of the device.
* Foreign objects inserted into the smart card slot or magnetic stripe slot.
* Any bumps in the casing below the mag stripe slot and any noticeable additional mag stripe head from the side.
* Signs of damage to the tamper-evident labels.
* A Tamper Warning message on the device display.

If any device is found to have been tampered with, please remove it from service immediately, keep it available for a potential forensics' investigation, and notify your company security officer and your local Verifone representative or service provider. To contact Verifone, please see Service and Support.

For terminals equipped with a privacy shield, perform daily inspections to ensure that the privacy shield is installed and has not been removed.

## Device Features

Familiarize yourself with the device features before continuing with the installation process:

<figure><img src="/files/xDqlsv7Lzal3kzIMPmTq" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/NCgJd2HsiXCMUCznWUEc" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/n4QuNxPkOioQQcERCViN" alt="" width="563"><figcaption></figcaption></figure>

## Front Panel

The front panel offers the following features:

* **Touch Screen Display** - The Verifone M425 device has a colored touchscreen Display.
* **Smart Card Reader** - A smart card reader is built into the front of the device to process smart card-based debit or credit transactions. For directions on how to use a smart card, see [Using the Smart Card Reader](/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/device-setup.md#using-the-smart-card-reader).
* **Magnetic Card Reader** - A magnetic card reader is built into the device for performing debit or credit card transactions. The card can be swiped in either direction. To ensure a proper read of the magnetic swipe card, insert the magnetic card from the side of the device.
* **CTLS Reader** - Contactless (CTLS) Reader has dedicated LEDs lower to the left of the display for contactless payments. For directions on how to conduct contactless transactions, see [Performing a Contactless Smart Card Transaction](/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/device-setup.md#performing-a-contactless-smart-card-transaction).
  * 4 white LEDs to support CTLS transaction function.
  * 3 white LEDs to support MSR transaction function.
  * 1 white LED to support SCR transaction function.
* **Audio Jack** - A 3.5 mm audio jack to facilitate accessibility for the visually impaired.
* **Microphone** - the user can speak into the terminal microphone to state the issue or ask a question.
* **Barcode Scanner** - A barcode scanner to capture and read information contained in a barcode.
* **K-Lock Slot** - customer can buy any kind of K-lock in the market to use on M425 device for physical security.
* **Telco Style Keypad** - intuitive telco-style keypad with colored control keys, interchangeably detects key presses from tactile keypad and touchscreen.

{% hint style="info" %}
On screen PIN entry is NOT supported.
{% endhint %}

## Connection Ports

The device has one custom multiport interface for power and communication.

### Connecting Cables and Other Devices

M425 device supports both integrated kit and Dongle with orange cable connectivity.

**To connect M425 device to an integrated kit**

{% stepper %}
{% step %}
Remove the back cover as shown below.

<figure><img src="/files/Tba7ZJpBCeMh0Zj3t7Xe" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Route the multiport cable through the back cover first, as shown in the picture.
{% endhint %}
{% endstep %}

{% step %}
Connect the multiport cable at the back of the device.

<figure><img src="/files/aQH6YlYrwWe6gzqUJsuB" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Close the cable compartment

Close the cable compartment, insert, and tighten the screw as shown below.

<figure><img src="/files/efybt7cwwV1Yv9wJ3SDB" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

Powered Multiport Cable supports USB and power connectivity. It provides a convenient way to connect to other systems of the same type.

<figure><img src="/files/2JKOLwtt9eeyLDjx7lY9" alt="" width="323"><figcaption></figcaption></figure>

## Integrated Kits

Connect the integrated kits as per the required configuration.

Following are the supported integrated kits for M425 connectivity.

<figure><img src="/files/TfUOLj8bhSxGVCnQPoKy" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/d0ibV2uWnB11bhqXCoT0" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/GsOQqpOSpYAwrS8xmyl9" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/JcDP6VHOj8d5ixdSKiTh" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/rtCsL4dMJOuRBPTDsLeo" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/81whwh7xNMp7rN9mVTg4" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/bqMBjTbnJni7QvZ7Pgqq" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/kXjR7sodS1HE1F3n8Cbr" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/JGP680boX3keUXv9lGfh" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Ac2chtT3yR6tLFRReJ8N" alt=""><figcaption></figcaption></figure>

## Dongle and Orange Cable

Following are the supported Dongles with Orange Cables for M425 connectivity.

<figure><img src="/files/bfC8RRPILEIn6tEkWmF8" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/k58acAUaYxPLovnURkbJ" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/PvBpIx4BnKuTHIIFOUFy" alt=""><figcaption></figcaption></figure>

## MSAM Card

You may need to install one or two or three Multiple Security Access Module (MSAM) cards or replace an old one.

{% hint style="warning" %}
Observe standard precautions in handling electrostatically sensitive devices.

Electrostatic discharge can damage the equipment. Verifone recommends using a grounded anti-static wrist strap.
{% endhint %}

**Installing or replacing MSAM Card**

To install or replace MSAM cards:

{% stepper %}
{% step %}
Power off the device.
{% endstep %}

{% step %}
Place the device face down on a soft and clean surface.
{% endstep %}

{% step %}
Remove the back cover of the unit.
{% endstep %}

{% step %}
Insert the MSAM cards. Carefully slide the cards one at a time into the slots until fully inserted. The correct orientation of the MSAM card is as indicated.
{% endstep %}

{% step %}
Close the back cover.

<figure><img src="/files/iHhsimcOmo2P4I8FfAIc" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

{% hint style="info" %}
Position the card's gold contacts facing downward towards the user. The card slot in the device has a set of contacts. The MSAM card has a notch on one corner to ensure that it fits into the connector base in only one way.
{% endhint %}

To replace SAM card, gently slide out the old SAM card before inserting a new one.

## MICRO SD (TF) Card

You may need to install one Micro SD card.

**Installing Micro SD Card**

To install a Micro SD card:

{% stepper %}
{% step %}
Power off the device.
{% endstep %}

{% step %}
Place the device face down on a soft and clean surface.
{% endstep %}

{% step %}
Remove the back cover of the unit.
{% endstep %}

{% step %}
Insert the SD card. Carefully slide the card into the slot until fully inserted. The Correct orientation of the SD card is as indicated in the Figure 8.
{% endstep %}

{% step %}
Close the back cover.

<figure><img src="/files/Zymc0PIIvAAE7YIHeRbg" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

## Powering the Device

The device can be powered by an external power pack/USB/Ethernet. When you have finished installing the necessary cards and/or optional devices, you are ready to power up the device.

The device requires connection to a power outlet with a dedicated circuit or an uninterruptible power supply (UPS). If other devices are plugged into the same circuit, the device can potentially experience power fluctuations that might cause malfunction. The device shuts down automatically once the power source is removed.

{% hint style="danger" %}
Do not connect the device to the power supply until all peripherals are attached.

Using an incorrectly rated power supply can damage the unit or cause it not to work properly. See [Specifications](/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/specifications.md) for detailed power supply specifications.

Do not plug the power pack into an outdoor outlet or operate the device outdoors. Disconnecting power during a transaction can also cause unsaved data files to be lost.
{% endhint %}

{% hint style="info" %}
Verifone recommends installing a power surge protector to protect against possible damage caused by lightning strikes and electrical surges.
{% endhint %}

**Connecting M425 Device to a Power Source**

To connect M425 device to an external power source:

{% stepper %}
{% step %}
Connect the Multiport cable (Example MSC445-010-00-A) to the Multiport at the back of the device.
{% endstep %}

{% step %}
Close back cover.

<figure><img src="/files/N1Q3XPbraiCAaDFse6eF" alt="" width="563"><figcaption></figcaption></figure>
{% endstep %}

{% step %}
Plug-in the power supply to the power connection port on the base module.
{% endstep %}

{% step %}
Plug the power cord into a wall outlet or power surge protector.
{% endstep %}
{% endstepper %}

**Connecting M425 Device via Power over USB**

Connect one end of the Multiport cable at the back of the device and another end to the USB port.

<figure><img src="/files/CKbYgf3C94KP0U222cGz" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/mTTDYkxAf9b4MJq1OSri" alt="" width="563"><figcaption></figcaption></figure>

**Connecting M425 Device via Power over Ethernet**

<figure><img src="/files/EjkNdSNomLPconsOWl48" alt="" width="563"><figcaption></figcaption></figure>

## Smart Card Reader

The smart card transaction procedure can vary depending on the application. Verify the proper procedure with your application provider before performing a smart card transaction.

**Using the Smart Card Reader**

To use the smart card reader:

{% stepper %}
{% step %}
Position the smart card with the gold contacts facing upward.
{% endstep %}

{% step %}
Insert the card into the smart card reader slot in a smooth, continuous motion until it sets firmly.
{% endstep %}

{% step %}
Remove the card only when the display indicates the transaction is complete.
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
Leave the smart card in the card reader until the transaction is completed.

Premature card removal can invalidate a transaction.
{% endhint %}

## Magnetic Card Reader

The device has a magnetic card reader that uses a triple-track stripe reader. This gives the unit greater reliability over a wide range of swipe speeds and operating environments.

**Using the MSR (Credit/Debit CardTransaction)**

To use the MSR (credit/debit card transaction):

{% stepper %}
{% step %}
MSR indicator lights will flash when ready to accept MSR transactions.
{% endstep %}

{% step %}
Position a magnetic card with the stripe to face downward, as shown in Figure11.
{% endstep %}

{% step %}
Swipe the card through the magnetic card reader.
{% endstep %}
{% endstepper %}

## Contactless Smart Card Transaction

The device supports contactless transactions through an integrated contactless module. The device only becomes active for contactless smart card transactions when initialized by an application.

**Performing a Contactless Smart Card Transaction**

To perform a contactless smart card transaction:

{% stepper %}
{% step %}
Gently tap the card onto the payment device or hold the card within 4cm against the surface of the device on the left side of the keypad above theContactless Reader icon.
{% endstep %}

{% step %}
Activated LED icons accompanied by a short beeping sound indicate asuccessful transaction.

<figure><img src="/files/4tnqpqxUSPY33IbFf5yr" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
Do not allow metallic surfaces to come in contact with the contactless module to ensure that it works properly.
{% endhint %}

## M425 Wi-Fi/BTSupport

The M425 device includes an integrated WLAN RF transceiver for Wireless LAN systems with advanced power management, and an integrated radio transceiver for Bluetooth wireless systems.

### Bluetooth Support

Supports BR/EDR and LE, including Eddystone and iBeacon.

### Wireless Transaction

M425 device supports wireless transactions. Wireless transactions occur when initialized by an application.

## Optional Accessories

These accessories can be used to further enhance the device's functionaity. See for list of part numbers for additional information.

### Privacy Shield

The privacy shield is used to deter the visual observation of PIN values as they are being entered by the cardholder during a transaction.

<figure><img src="/files/CbghsSFXmrl3vorpefW6" alt="" width="227"><figcaption></figcaption></figure>

**Installing the Privacy Shield**

To install the privacy shield:

{% stepper %}
{% step %}
Ensure the device's surface is clean and free of dirt.
{% endstep %}

{% step %}
Remove the protective film of the adhesive bonding.
{% endstep %}

{% step %}
Align and place the shield onto the keypad (downwards).

<figure><img src="/files/B1IGC1sWiyHeWJBf7xvd" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}
Press the adhesive bonding of the shield on the downside of the keypad. Holdit for a few seconds so that the shield is placed firmly.

<figure><img src="/files/yyhYFq4Be70e3AwwEjPo" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

## Stand

A mounting device that serves as the device's docking station and adds support during customer PIN-entry. The stand can be positioned on a countertop and can be adjusted during transactions for privacy.

**Docking the Device on the Stand**

To dock the device on the stand:

{% stepper %}
{% step %}
Place the device on the base. Ensure that the stand screws align with the keyholes found at the back of the device.
{% endstep %}

{% step %}
Slide down device to lock in place.
{% endstep %}
{% endstepper %}

**Undocking the device from the Stand**

To undock the device from the stand:

{% stepper %}
{% step %}
Slide the device upward to unhook the device from the stand.
{% endstep %}

{% step %}
Lift the device off the stand.
{% endstep %}
{% endstepper %}

{% hint style="info" %}
When conducting customer transactions, the stand orientation can be adjusted for convenience and security.
{% endhint %}

## External and Optional Devices

Multiple cable configurations are provided for the M425 device that supports peripheral devices designed for use with electronic point-of-sale system such as ECR, cash drawer, barcode scanner, external keyboard, weighing scale, external printer, external speakers, and a USB connection.

{% hint style="warning" %}
Remove the power cord from the multiport cable before connecting any peripheral device. Reconnect the power cord only after you have finished connecting the peripheral device(s).
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.verifone.com/hardware-products/hardware/engage-devices/m4xx-series/m425/m425-installation-guide/device-setup.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
