Welcome to the Developer Portal

Default UI Integration
- Integrating Default UI
- Migrating from PayButton to Default UI
- Managing Default UI Properties
- Summary Screen
- Incremental Authorization
- Custom Receipt Printing
- Automatic Receipt Printing
- Standalone Receipt Printing
- Sending Receipts via Email
- Customization
- Mobile UI Customization
- Release Notes

PayButton Integration
- Integration
- Stripe Transactions
- Alipay
- Summary Screen
- On-Reader Tipping
- Tip Adjust
- Loyalty and Bonus Cards
- Pre-Auth and Capture
- Refunds
- Custom Receipts
- Testing
- Going Live
- Release Notes

Custom Integration
- Installation
- Integration
- Stripe Transactions
- Signature
- Refunds
- Email & Print Receipts
- Custom Receipts
- Custom Receipts for PAX Terminals
- Preformatted Receipts
- Alipay
- On-Reader Tipping
- Tip Adjust
- Loyalty & Bonus Cards
- Pre-Auth & Capture
- Connection Keep-Alive
- Testing
- Going Live

Backend Integration
- API Endpoints and Authentication
- WebHooks
- Query Transactions
- Refunds
- Custom Receipts
- Going Live
- API Documentation

Card Readers
- Protecting Cardholder Data
- Developer Kits
- Test Cards
- Manage Card Readers
- Verifone Card Readers
  - Verifone e355
    - USB Connectivity Configuration
    - WiFI Connectivity Configuration
    - Windows Setup
    - User Guide
    - FAQ
  - Verifone P400
    - Getting Started with the Verifone P400
    - Ordering Test Equipment
    - Inspecting the Terminal
    - Connecting Verifone P400 Terminal Hardware
    - Configuring Ethernet Connectivity
    - Configuring USB Connectivity
    - Finding the Network Address Assigned to the Terminal
    - Configuring the Static IP Address
    - Verifying the Terminal IP Address
    - Changing Your Password on the Terminal
    - Processing a Transaction
    - Troubleshooting Terminal Issues
  - Verifone VX820
    - USB Connectivity Configuration
    - Ethernet Connectivity Configuration
    - Windows Setup
    - User Guide
    - FAQ
- Miura Card Readers
  - USB Connectivity Configuration
  - Windows Setup
  - Customization
  - Troubleshooting

Merchant Setup
- AMEX Merchant Setup
- Barclaycard APACS Merchant Setup
- Barclaycard HISO Merchant Setup
- Credorax Merchant Setup
- Elavon Merchant Setup
- EVRY Merchant Setup
- net-m Privatbank Merchant Setup
- Nexi Merchant Setup
- Stripe Merchant Setup
  - Stripe Direct and Stripe Connect
  - Stripe Connect

Connecting Verifone P400 Terminal Hardware

After integrating the PayServer or PayButton SDK into your point-of-sale (POS) system, the card reader can communicate with your POS system through a local network connection (Ethernet or USB).

Required components:

Verifone P400 payment terminal

Ethernet / USB dongle cable

Power supply unit

Ethernet or USB cable (Wi-Fi connectivity is not currently supported)

Follow the steps to connect the terminal to your network:

Remove the cover from the back of the payment terminal by sliding it in the direction indicated by the arrow.

Plug the 28-pin connector that is fixed to the Ethernet / USB dongle cable firmly into the port on the back of the terminal.

Slide the cover back into place to hold the cable securely in place.

Plug the power adapter prong into the Ethernet / USB dongle cable port marked with the lightening bolt icon.

Plug the terminal into the lightning bolt port into the connector hub.

Plug the other end of the power adapter into a power outlet. The payment terminal turns on automatically when connected to a power source. The screen display may flash on / off initial during start up. To turn the payment terminal off, disconnect the power supply cord from the power outlet.

If you are using the Ethernet connectivity method, plug an Ethernet cable into the port on the Ethernet / USB dongle cable port marked

ETH

. Plug the other end of the Ethernet cable into the POS system port.

If you are using the USB connectivity method, plug a USB cable into the port on the Ethernet / USB dongle cable port marked with the USB icon. Plug the other end of the USB cable into the POS system port.