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Acceptance Devices \| PAX A77 Terminal User Guide {#pax_a77_about_guide}
========================================================================

This section describes how to use this guide and where to find further information.

Audience and Purpose
--------------------

This guide is written for merchants who want to activate and use the PAX A77 payment terminal to process transactions using Acceptance Devices solutions. The guide describes how to get started with and configure the PAX A77 terminal.

Convention
----------

The following statement is used in this document:

> IMPORTANT
> An *Important* statement contains information essential to successfully completing a task or learning a concept.

Support
-------

For support information about any service, visit the Support Center:  
<http://support.visaacceptance.com>

Recent Revisions to This Document {#pax-a77-doc-revisions}
==========================================================

25.11.01
--------

:
Replaced product specification image in [Introduction to the Acceptance Devices \| PAX A77 Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-intro.md "").
:
Made these updates in [Configuring an Internet Connection for the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro.md ""):

    * Added stand-alone instructions for creating a password in [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").
    * Reduced repetition in instructions.
    * Replaced all screenshots.
    {#pax-a77-doc-revisions_ul_kbw_1b5_dhc}

25.01
-----

:
This revision contains only editorial changes and no technical updates.

VISA Platform Connect: Specifications and Conditions for Resellers/Partners {#vpc-partner-reseller-disclaimer}
==============================================================================================================

The following are specifications and conditions that apply to a Reseller/Partner enabling its merchants through Cybersource for Visa Platform Connect ("VPC") processing. Failure to meet any of the specifications and conditions below is subject to the liability provisions and indemnification obligations under Reseller/Partner's contract with Visa/Cybersource.

1. Before boarding merchants for payment processing on a VPC acquirer's connection, Reseller/Partner and the VPC acquirer must have a contract or other legal agreement that permits Reseller/Partner to enable its merchants to process payments with the acquirer through the dedicated VPC connection and/or traditional connection with such VPC acquirer.
2. Reseller/Partner is responsible for boarding and enabling its merchants in accordance with the terms of the contract or other legal agreement with the relevant VPC acquirer.
3. Reseller/Partner acknowledges and agrees that all considerations and fees associated with chargebacks, interchange downgrades, settlement issues, funding delays, and other processing related activities are strictly between Reseller and the relevant VPC acquirer.
4. Reseller/Partner acknowledges and agrees that the relevant VPC acquirer is responsible for payment processing issues, including but not limited to, transaction declines by network/issuer, decline rates, and interchange qualification, as may be agreed to or outlined in the contract or other legal agreement between Reseller/Partner and such VPC acquirer.

DISCLAIMER: NEITHER VISA NOR CYBERSOURCE WILL BE RESPONSIBLE OR LIABLE FOR ANY ERRORS OR OMISSIONS BY THE Visa Platform Connect ACQUIRER IN PROCESSING TRANSACTIONS. NEITHER VISA NOR CYBERSOURCE WILL BE RESPONSIBLE OR LIABLE FOR RESELLER/PARTNER BOARDING MERCHANTS OR ENABLING MERCHANT PROCESSING IN VIOLATION OF THE TERMS AND CONDITIONS IMPOSED BY THE RELEVANT Visa Platform Connect ACQUIRER.

Introduction to the Acceptance Devices \| PAX A77 Terminal {#pax-a77-intro}
===========================================================================

The PAX A77 is a portable Android SmartPOS (point-of-sale) payment terminal that is suitable for retail and hospitality environments. These are the terminal's features:

* Device can be used with the [Acceptance Devices \| PAX All-in-One Solution](https://developer.cybersource.com/docs/cybs/en-us/pax-all-in-one/integration/all/na/pax-all-in-one/pax-aio-intro.md "") and the [Acceptance Devices \| PAX Semi-Integrated Solution](https://developer.cybersource.com/docs/cybs/en-us/sis-pax/integration/all/rest/sis-pax/semi-integrated-solution-pax-intro.md "").
* Internet connectivity options are a Wi-Fi network or a mobile network with a SIM card.
* Supported payment methods are contactless, chip with PIN, and magnetic stripe.
* Does not include an integrated printer.
  {#pax-a77-intro_ul_s1k_pfk_dzb}  
  For more information about device features and product specifications, see the [manufacturer's product datasheet](https://www.paxtechnology.com/a77 "").

#### Figure: {#pax-a77-intro_fig_pyy_sgt_pwb}

PAX A77 Product Photos and Screen Example  
![Front and back PAX A77 product photos. The front photo has a screen example
showing a transaction. The back photo shows a Tap to Phone icon and reader
at the top.](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-a77/images/pax-a77-product-photo.png/jcr:content/renditions/original)

#### Figure: {#pax-a77-intro_fig_mdz_bd5_dhc}

PAX A77 Product Specifications  
![An image showing a list of the PAX A77 product specifications. These
specifications are available in a readable format on the manufacturer's
product datasheet at https://www.paxtechnology.com/a77.](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-a77/images/pax-a77-prod-spec-600x470.svg/jcr:content/renditions/original)

Supported Payment Card Types on the PAX Terminal {#pax-terminal-pymt-schemes}
=============================================================================

The PAX terminal supports these payment card types:

* American Express
* Diners/Discover
* Mastercard
* JCB
* UPI
* Visa
  {#pax-terminal-pymt-schemes_ul_mh4_m2h_3xb}

Supported Payment Card Entry Modes on the PAX Terminal {#pax-terminal-pymt-methods}
===================================================================================

The PAX terminal supports these payment card entry modes:

EMV contact
:
Holding the card with the chip facing up, the customer inserts (dips) the card into the card slot.

EMV contactless
:
The sensor area is located at the top of the terminal and is indicated by the Tap (contactless) icon printed on the device. The customer holds and places the card near the sensor area on the payment terminal.

Magnetic stripe
:
The device supports bi-directional (left-to-right or right-to-left) swiping of the magnetic stripe on the back of the card. Holding the card with the magnetic stripe facing down, the customer inserts the card into the magnetic card reader slot and swipes the card through the slot at a steady speed.

Getting Started with the PAX A77 Terminal {#pax-a920-get-started}
=================================================================

This section describes how to get started with using the PAX A77 payment terminal.

Ordering PAX Terminal Equipment {#pax-terminal-order-equip-intro}
=================================================================

Use this information to order PAX terminal test and production equipment in the European Union (EU), United Kingdom (UK), and United States (US). The ordering procedures described here vary due to differences in regional regulations and procedures.

Ordering PAX Terminal Test Equipment in the US {#pax-terminal-order-test-equip-us-intro}
========================================================================================

If you are located within the US, you can order equipment to test your integration and various payment workflows with the `Cybersource` Card Present Gateway.  
Two types of devices are available to order in this region.

Test device
:
A test device is intended for development and testing purposes only. It can be used to download applications that have been published in PAXSTORE. It cannot process live transactions.
:
**Use case:** Order a test device if you plan to integrate the Acceptance Devices \| PAX Acceptance Devices App and want to run test transactions using the Acceptance Devices app on the PAX terminal.

Debug device
:
A debug device is required when you are developing your own application. You can do these things with a debug device:

    * Install Android package kits (APKs)
    * Transfer files using a USB cable
    * Download published applications from PAXSTORE
    {#pax-terminal-order-test-equip-us-intro_ul_nyv_y2q_zgc}Like the test device, the debug device is intended for development purposes only and cannot be used for live transactions.

:
**Use case:** Order a debug device if you plan to use the Acceptance Devices \| PAX All-in-One Solution and want to integrate your custom application into this solution.  
You can order this test equipment in the US:

* Test card reader (payment terminal). Model does not include an integrated printer.
* Debug card reader (payment terminal). Model does not include an integrated printer.
* Test card, which can be used with a test or debug card reader.

{#pax-terminal-order-test-equip-us-intro_ul_zjc_kxg_pwb}  
The standard testing equipment box contains these items:

* Test or debug card reader. Model does not include an integrated printer.
* Power supply unit.
* USB cable.
  {#pax-terminal-order-test-equip-us-intro_ul_uqw_qxg_pwb}

Order PAX Terminal Test Equipment in the US {#pax-terminal-order-test-equip-us}
===============================================================================

Follow these steps to order PAX terminal test equipment in the US.

1. To order a test device, visit the [US Fulfillment](https://shop-hardware.cybersource.com/ "") page and follow the ordering instructions.
2. To order a debug device, contact [terminalfulfillment@visa.com](mailto:terminalfulfillment@visa.com "").

Ordering PAX Terminal Test Equipment in the EU and UK {#pax-terminal-order-test-equip-eu-uk-intro}
==================================================================================================

If you are located within the EU or UK, you can order equipment to test your integration and various payment workflows with the `Cybersource` Card Present Gateway  
One type of device is available to order in these regions.

Debug device
:
A debug device is required when you are developing your own application. You can do these things with a debug device:

    * Install Android package kits (APKs)
    * Transfer files using a USB cable
    * Download published applications from PAXSTORE
    {#pax-terminal-order-test-equip-eu-uk-intro_ul_nyv_y2q_zgc}Like the test device, the debug device is intended for development purposes only and cannot be used for live transactions.

:
**Use case:** Order a debug device if you plan to use the Acceptance Devices \| PAX All-in-One Solution and want to integrate your custom application into this solution.  
You can order this test equipment in the EU and UK:

* Debug card reader (payment terminal). Model does not include an integrated printer.
* Test card.

{#pax-terminal-order-test-equip-eu-uk-intro_ul_zjc_kxg_pwb}  
The standard testing equipment box contains these items:

* Debug card reader. Model does not include an integrated printer.
* Power supply unit.
* USB cable.
  {#pax-terminal-order-test-equip-eu-uk-intro_ul_uqw_qxg_pwb}

Order PAX Terminal Test Equipment in the EU and UK {#pax-terminal-order-test-equip-eu-uk}
=========================================================================================

Follow this step to order PAX terminal test equipment in the EU and UK.

1. Visit the Fulfillment page for your region and follow the ordering instructions:
   * [EU Fulfillment](https://shop-hardware.cybersource.eu/ ""): When ordering test equipment from the EU, you must have your company's Value-Added Tax (VAT) ID and Economic Operators Registration and Identification (EORI) number available to enter on your order. If this information is not provided, your shipment might be delayed.

* [UK Fulfillment](https://shop-hardware.cybersource.co.uk/ ""): When ordering test equipment from the UK, you must have your company's Value-Added Tax (VAT) ID available to enter on your order. If this information is not provided, your shipment might be delayed.

Ordering PAX Terminal Production Equipment in All Regions {#pax-terminal-order-prod-equip-all-regions-intro}
============================================================================================================

Production PAX terminals are designed to process live payment transactions using the `Cybersource` Card Present Gateway. Production devices are intended for deployment in live environments and are the only type approved for market use.
IMPORTANT For security reasons, APKs cannot be installed directly on live devices. Application updates must be delivered through PAXSTORE to ensure secure and controlled distribution.  
For small-quantity orders, place your order directly on the Fulfillment page. For help with bulk orders or questions about complex hardware distribution, contact [terminalfulfillment@visa.com](mailto:terminalfulfillment@visa.com "").  
You can order this production equipment in all regions:

* Card reader (payment terminal). Model does not include an integrated printer.

{#pax-terminal-order-prod-equip-all-regions-intro_ul_rzr_yjh_ldc}  
The standard PAX equipment box contains these items:

* Card reader. Model does not include an integrated printer.
* Power supply unit.
* USB cable.
  {#pax-terminal-order-prod-equip-all-regions-intro_ul_uqw_qxg_pwb}

Order PAX Terminal Production Equipment in All Regions {#pax-terminal-order-prod-equip-all-regions}
===================================================================================================

Follow this step to order PAX terminal production equipment in all regions.

1. Visit the Fulfillment page for your region and follow the ordering instructions:
   * [EU Fulfillment](https://shop-hardware.cybersource.eu/ ""): When ordering test equipment from the EU, you must have your company's Value-Added Tax (VAT) ID and Economic Operators Registration and Identification (EORI) number available to enter on your order. If this information is not provided, your shipment might be delayed.
   * [UK Fulfillment](https://shop-hardware.cybersource.co.uk/ ""): When ordering test equipment from the UK, you must have your company's Value-Added Tax (VAT) ID available to enter on your order. If this information is not provided, your shipment might be delayed.

* [US Fulfillment](https://shop-hardware.cybersource.com/ ""): You are not required to provide VAT and EORI information when ordering for US fulfillment.

Signing Up for a Test or Production Account {#pax-terminal-account-sign-up-intro}
=================================================================================

Use this information to sign up for test (sandbox) and production (live) accounts. Perform integration and testing in your test account. After receiving go-live approval, use your production account to process live transactions on the PAX terminal.
IMPORTANT Test credentials do not work in the production environment, and production credentials should never be used for testing.

Sign Up for a Test or Production Account {#pax-terminal-account-sign-up-task}
=============================================================================

Follow these steps to sign up for test (sandbox) and production (live) accounts.

1. Sign up for a test account.

   #### ADDITIONAL INFORMATION

   Visit the [Test Account](https://developer.cybersource.com/hello-world/sandbox.md "") sign-up page to complete account registration.

2. Request a production account.

   #### ADDITIONAL INFORMATION

Contact your Solution Delivery team. They will guide you through the go-live process and enable production processing on your PAX terminal.

Setting Up the PAX Terminal {#pax-setup-terminal}
=================================================

This section describes how to set up the terminal. The product drawings show the PAX device features.

#### Figure:

PAX A77 Terminal Drawings with Features Labeled  
![PAX A77 Terminal Drawings of Front, Back, and Side Views; with Features
Labeled](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-a77/images/pax-a77-front-rear-side-600x325.svg/jcr:content/renditions/original)

Removing the PAX Terminal Battery Seal {#pax-setup-terminal-remove-battery-seal}
================================================================================

Before charging the battery and using the PAX terminal, you must remove the battery seal. Follow these steps to remove the terminal battery seal:

1. Find the battery cover on the bottom-rear of the terminal.

2. To open the battery cover, slide the battery cover hatch to the opposite side of its current position.

3. Note the orientation of the battery before removing it so that you can reinstall it correctly.

4. Remove the battery and pull off the white plastic seal to expose the electrical contacts.

   #### ADDITIONAL INFORMATION

   #### Figure: {#pax-setup-terminal-remove-battery-seal_fig_v54_1ws_pwb}

   PAX Terminal Battery Seal Location and Removal  
   ![PAX Terminal Battery Seal Location and Removal](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-common/images/pax-battery-seal-removal-600x140.svg/jcr:content/renditions/original)

5. Replace the battery in the terminal.

6. Close the battery cover. Charge the battery before using the terminal. For more information, see [Charging the PAX Terminal Battery](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-get-started/pax-setup-terminal/pax-setup-terminal-charge-battery.md "").

Charging the PAX Terminal Battery {#pax-setup-terminal-charge-battery}
======================================================================

Before charging the battery and using the PAX terminal, you must remove the battery seal. For more information, see [Removing the PAX Terminal Battery Seal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-get-started/pax-setup-terminal/pax-setup-terminal-remove-battery-seal.md ""). Also, have available the connector cable and power supply unit provided with the terminal. Follow these steps to charge the PAX terminal battery:

1. Connect the USB-C cable to the USB cable port on the PAX terminal.
2. Plug the power supply unit into an electrical outlet. The terminal screen shows the charging status.

Powering the PAX Terminal {#pax-setup-terminal-power-terminal}
==============================================================

Before you can power on the terminal, you must charge the battery. For more information, see [Charging the PAX Terminal Battery](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-get-started/pax-setup-terminal/pax-setup-terminal-charge-battery.md ""). Follow these steps to power the PAX terminal on and off.

1. To power on the terminal, press and hold the Power button for 3 seconds until the device emits a beeping sound, and the LED next to the IC card slot lights. This light indicates that the terminal is powering on.
2. To power off the terminal, press and hold the Power button for 3 seconds until the Shutdown menu appears on the terminal screen.
3. Tap Turn Off. A message appears, confirming that the terminal is being powered off.

Default Passwords for the PAX Terminal {#pax-terminal-passwords-default}
========================================================================

The Settings and Developer Options menus on the PAX terminal are password protected. Use the default passwords in this section to access these menus.  
Before you start configuring the terminal, change the default Settings password to a unique, secure one. For more information, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").  
You are prompted for the Developer Options password on test devices only.

Settings password
:
`pax9876@@`

Developer option password (for use with test devices only)
:
`Dev9876@@`

Configuring an Internet Connection for the PAX Terminal {#pax-terminal-configure-connect-intro}
===============================================================================================

In order for the PAX terminal to operate correctly, it must be configured for internet connectivity. Use this information to configure an internet connection for the PAX terminal.  
Before the terminal can be used to process payments, it must also be associated with a merchant ID in the `Business Center`.  
For more information, see "Obtaining a Merchant ID and Secret Key from the Business Center" in the [Acceptance Devices \| PAX All-in-One Solution documentation](https://developer.cybersource.com/docs/cybs/en-us/pax-all-in-one/integration/all/na/pax-all-in-one/pax-aio-get-started-intro/pax-aio-mid-secret-key-obtain-intro.md "").  
Also see "Activating a Terminal in the Acceptance Devices App" in the [Acceptance Devices \| PAX Acceptance Devices App documentation](https://developer.cybersource.com/docs/cybs/en-us/sis-pax/integration/all/rest/sis-pax/semi-integrated-solution-pax-get-started-intro/semi-integrated-solution-ad-app-activate-terminal-.md "").

Create a Password for the PAX Terminal Settings Menu {#pax-terminal-configure-connection-pw}
============================================================================================

The Settings menu on a PAX terminal in where you configure device features, internet connections, and other options. Access to the menu is password protected. The PAX device ships with a default password. Replace the default password with a unique, secure one when setting up the device.  
Follow these steps to create a Settings password on the PAX terminal.

#### Figure: {#pax-terminal-configure-connection-pw_fig_ncq_vzd_hgc}

Settings Menu on PAX Terminal Home Screen and Password Input Screen in Settings Menu  
![Settings Menu on PAX Terminal Home Screen and Password Input Screen in
Settings Menu](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-common/images/pax-terminal-setting-password-grouped.png/jcr:content/renditions/original)

1. On the terminal Home screen, tap the Settings icon. You are prompted to enter the Settings password.
2. If you are a first-time user, enter the default Settings password: `pax9876@@`. Tap the Checkmark. The Settings screen appears.
3. Replace the default Settings password with a unique, secure one. In the Device section, tap Password. Follow the prompts to change the Settings password.

Configuring Wi-Fi Network IP Connections on the PAX Terminal {#pax-terminal-configure-wifi-connection}
======================================================================================================

These are the IP connections that you can use to connect the PAX terminal to your Wi-Fi network:

Dynamic IP connection
:
****Description:**** When using the Dynamic Host Configuration Protocol (DHCP) IP connection, the payment terminal is randomly assigned IP addresses by your internet service provider when you access the internet. This type of connection is also called a *dynamic IP connection*.
:
**Benefits:** Simplifies network management and eliminate the need to manually configure Wi-Fi settings on each PAX terminal.
:
**Get started:** See [Configuring a Dynamic IP Connection for a Wi-Fi Network on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection/pax-terminal-configure-wifi-dynamic-intro.md "").

Static IP connection
:
****Description:**** The static IP connection uses a single IP address that you specify in the terminal settings.
:
**Benefits:** Improves network reliability, enhances security, and enables easier device management.
:
**Prerequisite:** Before starting this configuration, the recommendation is to consult your IT department to obtain information that is required to configure this type of network connection.
:
**Get started:** See [Configuring a Static IP Connection for a Wi-Fi Network on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection/pax-terminal-configure-wifi-static-intro.md "").

Proxy IP connection
:
**Description:** Use the proxy IP connection when your Wi-Fi network is hidden by a proxy server so that it cannot be detected as a publicly available network.
:
**Benefits:** Masks your IP address, enhances online anonymity, encrypts your internet traffic, and protects data from being intercepted by third parties.
:
**Prerequisite:** Before starting this configuration, the recommendation is to consult your IT department to obtain information that is required to configure this type of network connection.
:
**Get started:** See [Configuring a Proxy IP Connection for a Wi-Fi Network on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection/pax-terminal-configure-wifi-proxy-intro.md "").  
For information about using a cellular connection as a back-up method to connect a PAX terminal to the internet, see [Configuring a Cellular Connection with a SIM Card on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-cell-connect-sim.md "").

Configuring a Dynamic IP Connection for a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-dynamic-intro}
========================================================================================================================

Use this information to configure a dynamic IP connection for a Wi-Fi network on the PAX terminal.  
Using a dynamic IP connection is a convenient option for simple device set up, which eliminates the need to manually manage static IP addresses. The payment terminal receives a randomly assigned IP address from your internet service provider each time it connects to the network.  
For information about other Wi-Fi configuration options on the PAX terminal, see [Configuring Wi-Fi Network IP Connections on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection.md "").

Enable a Dynamic IP Connection to a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-dynamic-task}
=================================================================================================================

Follow these steps to enable a dynamic IP connection to a Wi-Fi network on the PAX terminal.

#### Figure: {#pax-terminal-configure-wifi-dynamic-task_fig_qst_h3s_vgc}

Settings Menu Screens Used to Enable a Dynamic IP Connection on PAX Terminal  
![Settings Menu Screens Used to Enable a Dynamic IP Connection on PAX
Terminal](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-common/images/pax-ui-wifi-config-grouped.png/jcr:content/renditions/original)

1. On the terminal Home screen, tap the Settings icon. Enter your password. The Setting screen appears. If you have not created a custom password, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").
2. Tap Network \& internet.
3. In the Wi-Fi section, tap the toggle to turn on Wi-Fi.
4. Choose your Wi-Fi network from the list.
5. Enter the password for the Wi-Fi network.
6. Tap Connect. The device connects to your Wi-Fi network. A Password screen appears.
7. Enter the PAX terminal settings password that you entered in step 1. The Wi-Fi settings menu appears, showing that the terminal is connected to your Wi-Fi network.
8. To exit the screen, tap the back arrow until you reach the Home screen.

Configuring a Static IP Connection for a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-static-intro}
======================================================================================================================

Use this information to configure a static IP connection for a Wi-Fi network on the PAX terminal. This configuration uses a single IP address when connecting to the internet, which you specify in the terminal settings.
IMPORTANT Before starting this configuration, you might need to consult your IT department to obtain the information required to configure this type of network connection.  
For information about other Wi-Fi connection options on the PAX terminal, see [Configuring Wi-Fi Network IP Connections on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection.md "").

Enable a Static IP Connection to a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-static-task}
===============================================================================================================

Follow these steps to enable a static IP connection to a Wi-Fi network on the PAX terminal.

#### Figure:

Settings Menu Screens Used to Enable a Static IP Connection on PAX Terminal  
![Settings Menu Screens Used to Enable a Static IP Connection on PAX
Terminal](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-common/images/pax-ui-static-config-grouped.png/jcr:content/renditions/original)

1. On the terminal Home screen, tap the Settings icon. Enter your password. The Setting screen appears. If you have not created a custom password, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").

2. Tap Network \& internet.

3. In the Wi-Fi section, tap the toggle to turn on Wi-Fi.

4. Choose Add network from the list. The Add network screen appears.

5. In the Network name field, enter the SSID (network name) of your Wi-Fi network. The field is case sensitive.

6. Tap the Advanced options drop-down arrow. You might need to scroll down to see this menu option.

7. Open the IP settings drop-down menu, choose Static.

8. Enter the required information in these Static fields:

   #### ADDITIONAL INFORMATION

   * IP address field: Enter the static IP address for your Wi-Fi network.
   * Gateway field: Enter the IP address for your gateway.
   * Network prefix length field: Enter the prefix length for the subnetwork.
   * DNS 1 field: Enter the IP address for the first domain name system server.
   * DNS 2 field: Enter the IP address for the second domain name system server.
9. Tap Save. The Wi-Fi screen appears, showing that the terminal is connected to your Wi-Fi network.

10. To exit the screen, tap the back arrow until you reach the Home screen.

Configuring a Proxy IP Connection for a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-proxy-intro}
====================================================================================================================

Use this information to configure a proxy IP connection for a Wi-Fi network on the PAX terminal. Use this configuration when your Wi-Fi network is hidden by a proxy server so that it cannot be detected as a publicly available network.
IMPORTANT Before starting this configuration, the recommendation is to consult your IT department to obtain the information required to configure this type of network connection.  
For information about other Wi-Fi configuration options on the PAX terminal, see [Configuring Wi-Fi Network IP Connections on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-wifi-connection.md "").

Enable a Proxy IP Connection to a Wi-Fi Network on the PAX Terminal {#pax-terminal-configure-wifi-proxy-task}
=============================================================================================================

Follow these steps to enable a proxy IP connection to a Wi-Fi network on the PAX terminal.

#### Figure: {#pax-terminal-configure-wifi-proxy-task_fig_udf_xvs_vgc}

Settings Menu Screens Used to Enable a Proxy IP Connection on PAX Terminal  
![Settings Menu Screens Used to Enable a Proxy IP Connection on PAX
Terminal](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-common/images/pax-proxy-config-grouped.png/jcr:content/renditions/original)

1. On the terminal Home screen, tap the Settings icon. Enter your password. The Setting screen appears. If you have not created a custom password, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").

2. Tap Network \& internet.

3. In the Wi-Fi section, tap the toggle to turn on Wi-Fi.

4. Choose Add network. The Add network screen appears.

5. Open the Proxy drop-down menu, choose Manual.

6. Enter the required information in these Manual fields:

   #### ADDITIONAL INFORMATION

   * Proxy hostname field: Enter the proxy host name.
   * Proxy port field: Enter the port number for the proxy server.
   * Bypass proxy for field: If your Wi-Fi network uses a bypass proxy, enter domain names or IP addresses.
7. Tap Save. The Wi-Fi screen appears, showing that the terminal is connected to your Wi-Fi network.

8. To exit the screen, tap the back arrow until you reach the Home screen.

Configuring a Cellular Connection with a SIM Card on the PAX Terminal {#pax-terminal-configure-cell-connect-sim}
================================================================================================================

Use the information is this section to configure a cellular connection with a SIM card on the PAX terminal. When your Wi-Fi network is unavailable, a cellular internet connection can serve as a backup method to keep the terminal online and available to process transactions.
IMPORTANT A SIM card is not included with the terminal. Your service provider can recommend which SIM card to purchase for use with your PAX terminal. To set up a cellular connection, you must use a SIM card that provides access to 4G or 3G networks.  
Using a cellular connection method is recommended as a backup option because it is typically slower and more expensive than using a Wi-Fi connection. To help minimize data usage and operating costs when using a cellular internet connection, contact [customer support](http://support.visaacceptance.com "") to request that terminal software updates and app installations be performed using a Wi-Fi connection only.

Insert a SIM Card into the PAX Terminal {#pax-terminal-configure-cell-connect-sim-insert-sim}
=============================================================================================

To set up a cellular connection, you must use a SIM card that provides access to 4G or 3G networks. Follow these steps to insert a SIM card into the PAX terminal.

#### Figure: {#pax-terminal-configure-cell-connect-sim-insert-sim_fig_jhx_zm3_qwb}

PAX A77 Terminal Back View Showing SIM Card Slot Locations  
![PAX A77 Terminal Back View Showing SIM Card Slot Locations](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/pos-terminals/pax-a77/images/pax-a77-rear-simslot-600x300.svg/jcr:content/renditions/original)

1. Turn off the power to the terminal.
2. On the back of the terminal, slide the battery cover latch to the right, then remove the compartment cover.
3. Remove the battery from the compartment.
4. Insert the SIM card into the lower-left corner of the compartment with the contacts facing down to match the contacts on the terminal. The diagram on the inside of the compartment shows where to insert the SIM card.
5. Replace the battery in the compartment.
6. Replace the compartment cover, then slide the cover to the left to close it.

Enter a SIM Card PIN into the PAX Terminal {#pax-terminal-configure-cell-connect-sim-enter-sim-pin}
===================================================================================================

Before entering the SIM card PIN into the PAX terminal, insert the SIM card into the terminal. Follow these steps to enter a SIM card PIN into the PAX terminal.

1. Power on the PAX terminal. You are prompted to enter the PIN for the SIM card that you installed.
2. Enter the PIN carefully because you are allowed only three attempts to successfully enter it. After the third attempt, you must enter a personal unlocking key (PUK) before your mobile carrier blocks the SIM card.
3. When you enter the PIN successfully, the payment terminal detects the SIM card. A notification appears on the screen.
4. To verify that the SIM card is recognized and enabled on the terminal, on the terminal Home screen, tap the Settings icon.
5. Enter your device password, if prompted. The Settings screen appears.
6. In the In the Network \& internet section, tap SIM cards. The SIM cards screen appears.
7. Verify that the `SIM 1` field is enabled and that the `SIM 2` field is disabled.
8. Tap the back arrow until you reach the Home screen.

Configure a Cellular Network Connection for the PAX Terminal {#pax-terminal-configure-cell-connect-sim-config-cell-net-connect}
===============================================================================================================================

Before configuring a cellular network connection for the PAX terminal, enter the SIM card PIN in to the terminal. Follow these steps to configure a cellular network connection for the PAX terminal.

1. On the terminal Home screen, tap the Settings icon. Enter your password. The Setting screen appears. If you have not created a custom password, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").
2. In the Network \& internet section, tap More. The More screen appears.
3. Choose Cellular networks. The Cellular networks screen appears.
4. Tap the Data enabled toggle to turn it on.
5. To exit the screen, tap the back arrow until you reach the Home screen.

Automatic Installation of Software and Encryption Keys on the PAX Terminal {#pax-terminal-install-sw-encryp-keys-intro}
=======================================================================================================================

A PAX terminal must have the required software installed and encryption keys injected to operate correctly. Terminals are configured to automatically download and install these components through a secure process known as *remote software and key injection*. This automated process enables merchants to perform injections securely at the point of sale, without manual intervention or the need for specialized equipment.  
If the terminal shows an *Accessory update required* error message when software is being installed, see [Fix the Accessory Update Required Error on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-install-sw-encryp-keys-intro/pax-terminal-install-sw-accessory-update-error.md "").  
These types of software and encryption keys are automatically downloaded and installed on the terminal:

Operating system
:
PAX terminals operate on a preinstalled Android-based operating system known as *PayDroid*. Developed by PAX Technology, PayDroid is a customized version of the standard Android OS, specifically designed to support secure payment applications and services.

    Although it shares the core framework of the Android OS, PayDroid includes modifications that enhance security and reliability for payment processing. It supports the installation of third-party applications. However, due to the sensitive nature of payment data, all apps must be approved by PAX before installation on the device.

Acceptance Devices app
:
The Acceptance Devices app installs only on terminals running the Acceptance Devices \| PAX Acceptance Devices App in either Semi-Integrated or Standalone mode.

    In Semi-Integrated mode, the app enables communication between the PAX terminal and the integrated POS system by using simple API requests over a local Wi-Fi network or through the cloud. In Standalone mode, the app enables transactions to be initiated directly from the terminal without requiring integration with a POS system.

Payment apps
:
To read payment card data and process payments, every PAX terminal must have BroadPOS Point-to-Point Encryption (P2PE) installed. BroadPOS P2PE is a payment app developed by PAX that manages card data encryption. It serves as the interface that enables a PAX terminal to perform these functions:

    * Acquire card information
    * Support inserted, tapped, swiped, and keyed entry modes
    * Capture PINs
    * Encrypt the transaction process

    {#pax-terminal-install-sw-encryp-keys-intro_ul_pxh_p2r_zgc}All PAX terminals ordered through `Cybersource` and shipped by its distribution partner automatically include BroadPOS P2PE as part of the provisioning process.

Third-party POS app
:
This app installs only on devices running the Acceptance Devices \| PAX All-in-One Solution. When integrating with the SDK or PAX All-in-One, a third-party POS app that includes the SDK is installed and run directly on the PAX terminal. On a debug device, you can install (or sideload) the app for development and testing by using a USB connection to your laptop. Mac users must use Android File Transfer to sideload applications. For more information about debug devices, see [Ordering PAX Terminal Equipment](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-get-started/pax-terminal-order-equip-intro.md "").

Encryption keys
:
Every terminal running Acceptance Devices solutions is equipped with a set of encryption keys through remote key injection, after the terminal connects to a Wi-Fi network for the first time. The Online PIN key is responsible for encrypting and verifying PIN data in real time. The Secure Reading and Exchange of Data (SRED) key is used to encrypt card data captured at the Point of Interaction (POI). This process ensures P2PE between the terminal and the payment gateway.

Software Installation and Encryption Keys Injection on the PAX Terminal {#pax-terminal-install-remote-software-key-inject}
==========================================================================================================================

Before a payment terminal can automatically perform remote software installation and encryption key injection, it must first be activated on the `Cybersource` platform. To perform these automated processes, the terminal must be connected to the internet using a Wi-Fi or Ethernet connection. The PAX terminal initiates this automated process to install software and inject encryption keys.

1. **System connection:** The terminal establishes a secure link to the PAX terminal management system (PAXSTORE) using a Wi-Fi or Ethernet connection.
2. **Download initiation:** The terminal automatically begins downloading all required software packages and encryption keys.
3. **Activity notification:** The terminal makes a brief audible signal to indicate the start of the download process.
4. **Progress display:** The terminal screen displays real-time status messages about the components being downloaded. If the terminal does not emit a sound or display download progress messages, open the PAXSTORE app on the Home screen to verify that the terminal is connected to the PAX terminal management system. You can also manually trigger downloads in the PAXSTORE app.{#pax-terminal-install-remote-software-key-inject_cmd_inx_w3x_zgc}

Fix the *Accessory Update Required* Error on the PAX Terminal {#pax-terminal-install-sw-accessory-update-error}
===============================================================================================================

The `Accessory Update Required` error appears on the PAX terminal when the installed version of the Android SDK is incompatible with the BroadPOS P2PE version installed on the device.  
To resolve this issue, update the terminal to the latest SDK version. If you need help with the update process, contact [terminals@cybersource.com](mailto:terminals@cybersource.com "").  
For more information about software installation, see [Automatic Installation of Software and Encryption Keys on the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-install-sw-encryp-keys-intro.md ""). For information about BroadPOS device logs, see [Accessing Device Logs on a Test or Debug PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-addl-features-intro/pax-terminal-access-device-logs-intro.md "").

Additional Features Available on the PAX Terminal {#pax-terminal-addl-features-intro}
=====================================================================================

Use this information to access additional features that are available on the PAX terminal.  
You might be prompted to enter a device password when accessing some features. For more information, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "") and [Default Passwords for the PAX Terminal](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-a77-get-started/pax-terminal-passwords-default.md "").

Accessing Device Logs on a Test or Debug PAX Terminal {#pax-terminal-access-device-logs-intro}
==============================================================================================

Device logs are useful for troubleshooting terminal-related issues on a test or debug terminal.

> IMPORTANT
> You cannot access device logs directly on a live terminal. To get access to live device logs, contact [terminals@cybersource.com](mailto:terminals@cybersource.com "").  
> You can access these device logs on a PAX test terminal using a Windows computer:

* **BroadPOS logs:** These logs are named *broadpos_logyyyymmdd.log* and are stored in */sdcard/Android/data/com.pax.us.pay.std.broadpos.p2pe/files*.
* **POSLink logs:** These logs are named *POSLINKyyyymmdd.log* and are located in the root folder.
  {#pax-terminal-access-device-logs-intro_ul_kw2_rt5_pwb}

Access the BroadPOS Log on a Test or Debug PAX Terminal {#pax-terminal-access-device-logs-broadpos}
===================================================================================================

Access the BroadPOS log on a Windows computer to troubleshoot and debug a test or debug PAX terminal.  
Follow these steps to access the BroadPOS log.

1. Connect the PAX terminal to a Windows computer using the USB cable provided with the terminal. The computer detects the terminal.
2. Open File Explorer.
3. Choose the A77 device folder.
4. Click Internal storage \&gt; Android \&gt; data \&gt; comp.pax.us.pay.std.broadpos.p2pe in the device folder.
5. Choose a BroadPOS log file. The BroadPOS log file names start with *BroadPOS* and append the date to the file names in this format: *BroadPOS_logYYYYMMDD*.

Access the POSLink Log on a Test or Debug PAX Terminal {#pax-terminal-access-device-logs-poslink}
=================================================================================================

Access the POSLink log on a Windows computer to troubleshoot and debug a test or debug PAX terminal.  
Follow these steps to access the POSLink log.

1. Connect the PAX terminal to a Windows computer using the USB cable provided with the terminal. The computer detects the terminal.
2. Open File Explorer.
3. Choose the A77 device folder.
4. Click **Internal storage** in the device folder.
5. Choose a POSLink log file. The POSLink log file names start with *POSLink* and append the date to the file names in this format: *POSLinkYYYYMMDD*.

Performing a Factory Reset on the PAX Terminal {#pax-terminal-factory-reset-intro}
==================================================================================

A factory reset restores the terminal to the state that it was in when shipped to you. This procedure applies to test, debug, and live devices. Performing a factory reset does not affect the device key that was preloaded on the terminal before it was shipped to you.
IMPORTANT If you are considering performing a factory reset to resolve an issue, the recommendation is to explore other troubleshooting options first. A reset will erase all configurations, installed applications, and locally stored data, which might not be necessary for resolving common issues.  
Use these default passwords to access the menus where you perform a factory reset on a PAX terminal:

Settings password
:
`pax9876@@` (If you created a custom password, use it instead.)

Developer option password
:
`Dev9876@@` (Use with test devices only.)

Perform a Factory Reset on the PAX Terminal {#pax-terminal-factory-reset-task}
==============================================================================

Follow these steps to perform a factory reset on a PAX terminal.

1. On the terminal Home screen, tap the Settings icon. Enter your password. The Setting screen appears. If you have not created a custom password, see [Create a Password for the PAX Terminal Settings Menu](/docs/cybs/en-us/pax-a77/activation/all/pax-a77/pax-a77/pax-terminal-configure-connect-intro/pax-terminal-configure-connection-pw.md "").
2. On the Settings screen, tap System.
3. Choose Reset options.
4. Tap Erase all data (factory reset).
5. Choose RESET DEVICE.
6. Tap ERASE EVERYTHING. The reset process starts on the device.

