The PAX A920 Pro can be used in two different ways within SharperMMS:
Register Mode (Card Reader Only) – The POS register runs on a computer, tablet, or browser, and the PAX device is used only to collect payments.
Mobile POS Mode (Register on Device) – The POS register runs directly on the PAX device, allowing staff to create sales, add items, and process payments from the handheld unit itself.
The setup process and daily workflow differ depending on which mode you choose.
NOTE: A PAX A920 Pro device is not required to use SharperMMS POS Registers. Standard POS registers can process payments using supported payment terminals and payment processors without running the register on a PAX device.
The PAX A920 Pro offers additional flexibility because it can be used in two ways:
As a payment terminal connected to a traditional SharperMMS POS Register
As a fully mobile POS register running Sharper Mobile POS directly on the device.
Option 1: Register Mode (PAX as a Card Reader)
Best For
Front desk or ship store registers
Fixed checkout stations
Users who want the full POS interface on a larger screen
How It Works
The SharperMMS POS Register runs on your computer or tablet, while the PAX device handles card payments.
⚠️ Important: Before processing payments, ensure the Payroc app is open and connected on the PAX device. Payments may fail if the Payroc app is closed or disconnected.
Workflow:
Open the POS Register in SharperMMS.
Add products or services to the sale.
Select Pay in SharperMMS
Choose the Device payment method.
The payment amount is automatically sent to the PAX device.
Customer taps, inserts, or swipes their card.
If tipping is enabled, the customer will be prompted to select a tip amount on the device prior to paying.Payment is approved and returned to the main register screen.
Receipt options are displayed in SharperMMS.
Advantages of Register Mode
Full POS experience on a larger screen.
Faster item lookup and navigation.
Ideal for stores with larger inventories.
Easier cashier training for traditional checkout environments.
Initial Setup
Before using the PAX device as a card reader:
Connect the PAX device to Wi-Fi.
Complete processor activation and boarding.
Configure the device within SharperMMS POS Register settings.
Assign the device to the appropriate register.
For detailed setup instructions, see:
Option 2: Mobile POS Mode (Register loads on the A920 PAX Device)
Best For
Fuel docks
Marina yard operations
Boat rentals
Mobile retail sales
Staff working away from a traditional checkout counter
How It Works
The Sharper Mobile POS application runs directly on the PAX device.
⚠️ Important: Before processing payments, ensure the Payroc app is open and connected on the PAX device. Payments may fail if the Payroc app is closed or disconnected.
Workflow:
Open Sharper Mobile POS on the PAX device.
Search for a customer or create a new sale.
Add products, services, fuel, or inventory items.
Complete checkout directly on the device.
Customer taps, inserts, or swipes their card.
If tipping is enabled, the customer will be prompted to select a tip amount on the device prior to paying.Transaction is processed immediately on the device.
Receipt options are presented.
No separate computer or POS station is required.
Advantages of Mobile POS Mode
Completely mobile operation.
Process sales anywhere with Wi-Fi or cellular connectivity.
Ideal for dockside and field staff.
Eliminates the need to return to a register station.
Initial Setup
Before using the device as a mobile register:
Connect the device to Wi-Fi.
Complete processor activation and boarding.
Install and configure Sharper Mobile POS.
Log in with your SharperMMS credentials.
For detailed setup instructions, see: