What’s In The Box
S1U2 payment terminal
Cable that connects the terminal to the ethernet cable, audio output, and the region-specific power plug for charging
Barcode scanning camera
Cellular communication antenna
eSIM card (pre-installed)
USB cable
The S1U2 is an all-in-one Android payment terminal suitable for unattended environments and outdoor use. It has a front camera and a barcode scanner and allows shoppers to pay by swiping, inserting, or tapping their card or mobile wallet.
Mount the terminal
You need to mount the S1U2 payment terminal on your vending, ticketing, multimedia kiosk, or other self-service solutions. To learn how to mount S1U2, see:
The installation instructions from the manufacturer of your self-service machine.
The installation instructions from Castles, the manufacturer of the S1U2 payment terminals.
Connect the cables
Connect the MDB harness cable to the back of the terminal. This cable connects the terminal to the power supply, and optionally to the audio output device.
***You cannot use the MDB harness cable to connect the Ethernet cable. You need to connect it directly into the terminal between the MDB slot and the SIM/SAM card slots.***
Connect the cellular communication antenna cable to the antenna slot with the label MAIN. To boost the signal, you can also connect two antennas.
If your use case requires it, connect your self-service device to the S1U2 using the USB-A or USB-C slots on the back.
The S1U2 terminal now starts up.
Connect to your network
Connect your terminal to the internet so that it can communicate with the Adyen payments platform and your own back-end systems.
Connect to Wi-Fi
After selecting your language on the Welcome screen, select the arrow button:
On the Setup Wi-Fi screen, select the + sign.
Turn on the WLAN toggle switch.
Select a Wi-Fi network from the list or select the + sign and add the name (SSID) of the Wi-Fi network.
Enter the Wi-Fi password.
Select OK.
The terminal sets the network as default automatically and connects to it.
You'll now see a Wi-Fi icon at the top of the display.
Updating the connection settings
If you need to change Wi-Fi usage later:
Select Settings > Network.
Enter your passcode: 0856
Select Wi-Fi. You can now:
Turn Wi-Fi on or off using the WLAN toggle switch.
Add another network as described above.
Cellular 3G/4G failover
Your S1U2 terminal can automatically switch to processing payments using a cellular connection when the internet connection fails. Adyen terminals come with a pre-installed and activated SIM (eSIM) card, so you can use the cellular network immediately to board the terminal.
Board the terminal
When the display shows Board the terminal, on the screen press OK.
When the display shows the store that the terminal is assigned to, press OK to confirm.
Update the terminal software
Under Settings, select Device info > Software version.
Enter the Admin & Settings passcode and select Continue.
Select Install now.
When the terminal finishes downloading and installing the software, it reboots. After that, you are ready to accept payments.