Built-in Printer

The high-speed printer attached to the Desk/3500 provides your customers with physical receipts on thermal paper for easy transaction tracking.



Ingenico TETRA Desk/3500 allows you to connect to the protected network of your choice ensuring secure payment processing.


Contactless Payments

With the use of its NFC feature, the Desk/3500 will have you taking contactless payments and accepting digital wallets instantaneously.

Packed with modern operating features, the Ingenico Tetra Desk/3500 creates a trouble-free payment experience between businesses and their customers. The device provides multiple network connectivity options so you can choose how to securely process transactions. With the built-in printer, wide-button keypad, and color display you will create a painless shopping experience for new and returning customers alike. Businesses using a Desk/3500 terminal will not be disappointed!

Ingenico Desk 3500 Terminal Technical Specification

User Manual

Download PDF

Spec Sheet

Download PDF

Operating System

Telium TETRA


7.3" x 2.6" x 3.2" x 2.6''


0.75 lbs


WiFi / Dial-up Modem / Ethernet 10/100 base T




Cortex A5


256 MB Flash, 128 MB RAM

Printer specs

Thermal Printer 20 lines/second

Fee-Recovery Method(s)

Cash Discount and Surcharge

Compatible Platform(s)


Third-party payment(s)

Apple Pay, Samsung Pay, Google Wallet, Visa payWave, Android Pay, MasterCard PayPass




Frequently Asked Questions

The default admin password for the Ingenico Desk/3500 is 999999.

For WiFi:

  1. Press the circle button right below the screen.
  2. Use the down arrow to highlight “TETRA ADMIN” and hit the green button.
  3. Select “CONFIGURE WiFi.”
  4. Select “SCAN NETWORKS.”
  5. Choose the network of your choice.
  6. Once connected, you will see the WiFi icon at the top of the screen.


For Ethernet:

  1. Connect the Ethernet cable to the terminal and connect the other side of the cable to an Ethernet port.
  2. Once connected, your terminal will automatically connect and a green icon will appear to indicate an active connection.
  3. If the Ethernet icon shows white, your terminal is not connected. In that case, be sure to double check that your Ethernet port has an active IP connection.

Try the following for communication errors:

  1. Turn the Ingenico terminal off for 30 seconds.
  2. Remove the SIM card.
  3. Replace the SIM card and turn the device back on.
  4. Leave the terminal alone for about 2 minutes and see if the network connectivity appears on its own.
  5. If it does not show, try manually connecting to a network.

If nothing seems to work, please contact your merchant service provider for assistance.

  1. Press the circle button right below the screen.
  2. Press “ADMIN MODE.”
  3. Enter password: t8432678
  4. Select “TETRA ADMIN.”
  5. Select “DATE/TIME.”
  6. Change date and time to the correct settings.

The Ingenico Desk/3500 will require thermal printer paper that is 2 ¼ in. wide and up to 50 ft. long.

user icon
user icon
user icon
phone icon

list iconIngenico Desk 3500 Terminal