# 4. Connect & Test Hardware

Configure receipt printers, cash drawers, payment terminals, displays, and complete a safe opening test.

# How to Configure Receipt and Document Printers

1. Open Settings → Devices & Hardware.
2. Select or configure the receipt printer.
3. Confirm connection type and paper size.
4. Review automatic printing choices.
5. Print a test receipt.
6. Test any invoice, statement, label, or repair-document printer used by the store.

See [Devices, Hardware & Displays](https://help.repairnestpos.com/books/devices-hardware-displays).

# How to Test the Cash Drawer and Card Terminal

1. Select the correct cash drawer and open a test shift.
2. Confirm the drawer opens only through authorized actions.
3. Verify the selected payment processor and terminal.
4. Run a safe approved card test.
5. Confirm the payment returns to the POS and the receipt is correct.
6. Test that integration bypass requires its PIN.

Do not use live customer payment data for an unapproved test.

# How to Configure Customer-Facing Displays and Other Devices

Review every device used in the customer and employee workflow:

- Customer-facing display
- Barcode or QR scanner
- Receipt and label printers
- Cash drawer
- Card terminal
- Scale or other supported accessory

Confirm each device is connected to the intended workstation and works in both normal and recovery scenarios. See [Devices, Hardware & Displays](https://help.repairnestpos.com/books/devices-hardware-displays).

# Final Go-Live Test

1. Sign in as a normal employee.
2. Confirm the correct language, appearance, toolbar, and priority page.
3. Open the correct cash drawer and shift.
4. Find an item by name and identifier.
5. Add a favorite product.
6. Select a customer and complete a safe test sale with tax.
7. Verify required payment prompts and integrated-card behavior.
8. Print and review the receipt.
9. Perform a cash count and close the shift.
10. Review reports and confirm the test records are understood.

Resolve every unexpected result before taking live transactions.