PostFinance PAX A920 User manual

PAX A920
User Manual
User manual for the basic functions of the PAX A920
Contents: Overview of the device
Delivery contents
Setup
Accepting payments
Further settings

With the PAX A920, you have chosen a top-quality terminal based on Android that offers you numerous
possibilities with intuitive operation. With its integrated reader for contactless payment methods, receipt
printer, card reader, cameras and much more, it is the perfect choice for accepting modern payment methods
in your business.
Overview of the device
Serial number of your
machine (11)
Tab for opening the paper
roll compartment (10)
Rear camera with LED ash (12)
Battery compartment (13)
with battery and slot for
SIM card
Slider for opening the
battery compartment (14)
Reader for contactless
payment methods (1)
Front camera (2)
Volume control (4)
Volume down
Volume control (5)
Volume up
Reader for magnetic stripe (3)
Power on/off Button (6)
Touch screen (7)
microUSB charging port (8)
Reader for cards with chip (9)

1. Insert the paper roll
First open the paper roll compartment on the back of
the machine. Pull the tab on the top of the machine.
Place the paper roll in the tray so that the front of
the paper comes out the bottom of the roll and leave
about 1 cm overhang. Close the tray. Paper roll
dimensions: 57 mm width, max. 40 mm diameter.
2. Charging the device
Before using the unit for the rst time, it should be
fully charged. To do this you can charge the terminal
directly via the USB cable supplied. Use the the
microUSB port on the left side of the unit (8). We
recommend using the charging station.
3. Switching the device on / off
Press and hold the Power On/Off button (6) for
2 seconds. To switch the unit off again, press the
same button until you see a button until you see a
selection menu with four options (Flight mode,
Silent mode, Restart, Power off) and select the option
„Power off“.
4. Set up Wi-Fi®/ WLAN
Once your device is fully charged and switched on,
you must rst set up your Wi-Fi®connection before
you can you can enter the activation code (step 5).
– Select the settings icon in the upper left corner
– Select „Device settings“ and enter your
merchant password if necessary
– Select „Conguration WiFi“
– Select your Wi-Fi®/ WLAN network, enter the
password of your of your network and conrm
– Once you are connected to your WLAN, return to
the start screen and return to the home screen and
continue with the activation of your account (step 5).
5. Activate account
As soon as you have a WIFI connection (or mobile
data connection), you can activate your account.
Return to the the start screen and enter the activation
code that you will receive from PostFinance. You will
nd this code in your „Space“ in the checkout
back-ofce-tool under „Terminals“. The current
conguration will automatically be loaded onto the
device. Please do not interrupt this process until you
see the start screen again. If you have any questions
our support team will be happy to help you.
Perfect!
You have completed the initial setup of your
PAX A920 and can now start using your terminal
to accept modern payment methods.
The initial setup and installation of your new PAX A920 is very simple.
In just a few steps, your device is ready to handle your payment transactions.
If you have any questions during setup, our support team will be happy to help.
Delivery contents
Setup
Device
PAX A920
Adapter + cable
USB-C / USB
Charging base
L920-BC
Setup
paper roll
4G data connection
All PAX A920 are equipped with a SIM card,
already installed in advance and thus ready for
use immediately when switching on. Therefore,
you can also use the mobile data connection for
activation.

Accept a payment
To accept a payment or make a sale on your device
on your device:
– Click on the Card icon on the home screen
– Enter the payment amount and conrm
– If the tip function has been activated, you will see
a second input window in which you can enter and
conrm the tip (optional)
– Now your customer can present the card or
contactless payment method
– The transaction will be completed and a receipt
will be printed
Manual entry of payment details (optional)
Accept a new payment by clicking on the Card icon
on the home screen and entering the payment
amount. Then click on „Manual entry“. Your customer
then has the opportunity to enter his card details
(card number, security code CVV, validity). Finally,
the total amount is displayed once again and asked
for conrmation.
The functionality for manual entry is not available
for all payment methods, is optional and must be
activated by PostFinance.
Refund a payment
To refund a payment to an existing card on your
device:
– Click on the menu icon and enter your
merchant password when required
– Select the menu item „Credit“ and enter the
merchant password if necessary
– Enter the total amount to be refunded
– Now your customer can present the card or
contactless payment method to which the refund
should be made
Refund for manual entry (optional)
Click on the menu icon , enter your merchant
password, select the menu item „Credit“ and
conrm again with your merchant password if neces-
sary. Select „Manual entry“. You can then enter the
card details of the card to which you want to refund
(card number, security code, CVV, validity). Finally,
the total amount will be will be displayed and you
will be asked to conrm.
The functionality for manual entry is not available
for all payment methods, is optional and must be
activated by PostFinance.
Daily closing
You can call up all individual receipts, reports and
much more at any time conveniently in your account
in
the checkout back-ofce-tool . The daily statement
is created on your terminal:
– Select the menu icon
– Now select „Reports“ and then „Daily closing“
The device starts printing the report and the trans-
actions for the day. The day’s transactions are sent to
the merchant. On the report you will nd the number
of transactions for the day, the daily total of tips and
the daily revenue. The reports should be generated
every day.
Cancel the last transaction
The last transaction can be cancelled very easily.
To do this, you need the means of payment with
which the payment was made:
– Select the menu icon
– Select „Cancel“ from the menu
– Enter your merchant password
Many functions on your PAX A920 are intuitive to nd and easy to use thanks to the modern touchscreen.
Below you will nd the basic functions for processing payments directly via the terminal (stand-alone use).
For integration into your POS system, you can obtain application instructions directly from the respective
manufacturer.
Accept payments

Payment reservation (Pre-auth) 1
If required, you can pre-authorise a means of
payment or reserve the payment:
– Select the menu icon
– Now select the area „Reservations“ and then
„Reservation“
– Enter the amount and present the card or contact-
less payment method (or optionally enter the card
details manually, as required)
Adjust a payment reservation
(Incremental auth) 1
To adjust an existing payment reservation:
– Select the menu icon
– Now select the area „Reservations“ and then
„Increase Reservation“
– Enter the amount by which you want to increase
the existing reservation
– Now enter the Acquirer Id (Acq-Id) and the corre-
sponding relevant Transaction Reference Number
(Trx. Ref-No) and conrm
Finalise a payment reservation
(Pre-auth compl.) 1
To complete an existing payment reservation:
– Select the menu icon
– Now select the area „Reservations“ and then
„Booking Reservation“
– Enter the Acquirer Id (Acq-Id) and the Transaction
Reference Number (Trx. Ref. No.) of the original
reservation and conrm
Cancelation of a payment reservation
(Pre-auth cancelation) 1
To delete an existing payment reservation:
– Select the menu icon
– Now select the area „Reservations“ and then
„Cancelation Reservation“
– Enter the Acquirer Id (Acq-Id) and the Transaction
Reference Number (Trx. Ref. No.) of the original
reservation and conrm
1Note on Pre-auth functions
The functions for pre-auth / payment reserva-
tions are only available to certain industries, e.g.
hotels, and must be approved by your acquirer.
In order to complete, adjust or cancel the pay-
ment reservation you will need the Acquirer Id
(Acq-Id) and the Transaction Reference Number
(Trx. Ref-No). Make sure that you make a note of
these numbers or that you keep the receipt of
the reservation.

This document is for information purposes only. PAX and the PAX logo are trademarks or registered
trademarks of PAX Technology Limited in China and/or other countries. Other trademarks or trade
names are the property of their respective companies. © 2022 PostFinance Ltd. All rights reserved.
As at 3/2022. Subject to changes, and errors excepted.
Changing the Merchant Password
If required, you can also change your merchant pass-
word of the terminal directly via the terminal. As a
general rule we recommend that you update your
merchant password in the checkout back-ofce tool.
However, to change the merchant password directly
via the terminal proceed as follows:
– Select the settings icon
– Now select the area „Change password“ and
conrm with your current merchant password
– Now enter a new password and conrm by
pressing conrm with Enter / the green button
Further Settings
Change language settings
Language settings can be changed in the checkout
back-ofce tool in the terminal congurations if
necessary.
460.280.3 en 03.2022
We are available from 8 a.m. to 12 noon and from
1 p.m. to 5 p.m., Monday to Friday, to answer your
questions and enquiries.
Telephone [phone]
(max. CHF 0.08/min. in Switzerland)
E-mail checkout@postnance.ch
Any questions?