PAX A920 User manual

A920 REFERENCE GUIDE
A920 Reference Guide
Date: 12-12-2019
Version: 1.0

A920 REFERENCE GUIDE
v1.0 | i
Preface
A920 Reference Guide
Version: 12-12-2019 v1.0
Copyright © 2019 PAX Technology, Inc. All rights reserved.
The Programs (which include both the software and documentation) contain proprietary information; they
are provided under a license agreement containing restrictions on use and disclosure and are also
protected by copyright, patent, and other intellectual and industrial property laws. Reverse engineering,
disassembly, or decompile of the Programs, except to the extent required to obtain interoperability with
other independently created software or as specified by law, is prohibited.
This document is provided for informational purposes only. All features and specifications are subject to
change without notice. If there are any problems in the documentation, please report them to Pax in
writing. This document is not warranted to be error-free. Except as may be expressly permitted in the
license agreement for these Programs, no part of these Programs may be reproduced or transmitted in
any form or by any means, electronic or mechanical, for any purpose.
Security Notice: No part of this publication may be copied, distributed, stored in a retrieval system,
translated into any human or computer language, transmitted, in any form or by any means, without the
prior written consent of PAX Technology, Inc.
PAX is a registered trademark of PAX Technology Limited in China and/or other countries. All other
trademarks or brand names are the properties of their respective holders.
Technical Support
If there is a problem while installing, registering or operating this product, please make sure to review
the documentation. If unable to resolve the issue, please contact Pax.
PAX support operates 24 hours a day, 7 days a week. The level of access to this Service is by the support
plan arrangements made between PAX and the Organization. Please consult this support plan for further
information about entitlements, including the hours when telephone support is available.
Technical Support Contact Information:
Phone: [phone]
Email: [email protected]
URL: www.pax.us

A920 REFERENCE GUIDE
v1.0 | ii
Revision History
Date
Version
Description
12/12/19
v1.00
Initial Release

A920 REFERENCE GUIDE
v1.0 | iii
Table of Contents
PREFACE ............................................................................................................................................ I
REVISION HISTORY............................................................................................................................ II
1. INTRODUCTION ..........................................................................................................................1
1.1 PURPOSE ............................................................................................................................................. 1
1.2 INTENDED AUDIENCE.......................................................................................................................... 1
1.3 ACRONYMS AND TERMS ..................................................................................................................... 2
2. PACKAGING ...................................................................................................................................3
2.1 A920 OVERPACK CARTON ................................................................................................................... 3
2.2 A920 TERMINAL BOX........................................................................................................................... 3
2.3 A920 PROTECTIVE CARDBOARD INSERTS ........................................................................................... 4
2.4 A920 BOX CONTENTS.......................................................................................................................... 4
3 PRODUCT DESCRIPTION...................................................................................................................5
3.1 A920 PART NUMBER INFORMATION .................................................................................................. 5
3.2 SERIAL NUMBER LOCATION ON TERMINAL ........................................................................................ 6
4.0 A920 FUNCTIONAL INFORMATION ..............................................................................................7
4.1 TECHNICAL DETAILS AND SPECS ......................................................................................................... 7
4.2 A920 TERMINAL VIEW FROM ALL SIDES ........................................................................................... 8
4.2.1 A920 COMPONENTS, INTERFACE, AND PORTS (BACK) .................................................................... 8
4.2.2 A920 COMPONENTS, INTERFACE, AND PORTS (FRONT)........................................................... 9
5TERMINAL LOCATION ...............................................................................................................10
6AC POWER CONNECTION ..........................................................................................................11
7TERMINAL PORTS .....................................................................................................................12
8BATTERY INFORMATION...........................................................................................................13
8.1 BATTERY SPECIFICATIONS...........................................................................................................13
8.2 CHARGING BATTERY ................................................................................................................... 13
8.3 REMOVE AND INSTALL BATTERY.................................................................................................14
9. INSTALL A920 SIM, SAM, AND MICRO SD CARD .........................................................................16
9.1 SIM, SAM & MICRO SD CARD INSTALLATION ............................................................................. 16
10. CARD READERS .....................................................................................................................18
10.1 MAGNETIC STRIP READER...........................................................................................................18
10.2 EMV CARD READER ..................................................................................................................... 18

A920 REFERENCE GUIDE
v1.0 | v
10.3 PFC/CONTACTLESS CARD READER .............................................................................................. 19
11. BASIC OPERATION INSTRUCTIONS .........................................................................................20
11.1 POWER ON.................................................................................................................................. 20
11.2 POWER OFF TERMINAL ...............................................................................................................20
11.3 ADJUST THE DISPLAY BRIGHTNESS...............................................................................................21
11.4 ADJUST THE VOLUME................................................................................................................... 22
11.5 TAKE A SCREENSHOT....................................................................................................................... 23
11.6 CLEANING THE DEVICE................................................................................................................ 23
11.7 REPLACE PAPER ROLL..................................................................................................................24
12. SETTING UP COMMUNICATIONS ...........................................................................................27
12.1 WI-FI CONNECTION..................................................................................................................... 27
12.2 DHCP WI-FI CONNECTION........................................................................................................... 28
12.3 STATIC IP ..................................................................................................................................... 30
12.4 MANUAL STATIC IP...................................................................................................................... 33
12.5 PROXY SETUP .............................................................................................................................. 37
12.6 CELLULAR 4G COMMUNICATION................................................................................................ 43
13 L920 MULTI-FUNCTIONAL & CHARGING A920 BASE ...................................................................48
13.1 PACKAGING .................................................................................................................................49
13.1.1 L920 OVERPACK CARTONS......................................................................................................49
13.1.2 MULTI-FUNCTIONAL BASE BOX............................................................................................... 50
13.2 BOX CONTENTS ........................................................................................................................... 51
13.3 L920 PART NUMBER AND PART NUMBER DESCRIPTION............................................................52
13.4 L920-BC & L920-BM SERIAL NUMBER LOCATION AND FORMAT ............................................... 52
13.5 L920-BM PART NUMBER, HARDWARE, OS AND BOOT VERSION ...............................................53
13.6 L920-BM MULTIPLE PORT STICKER ............................................................................................. 53
13.7 L920-BC MULTI-PORTS................................................................................................................53
13.8 L920 DIMENSIONS....................................................................................................................... 54
13.9 L920 PRODUCT DESCRIPTION .....................................................................................................54
13.10 L920-BC BOTTOM VIEW .......................................................................................................... 54
13.11 L920-BM BOTTOM VIEW......................................................................................................... 54
14. FREQUENTLY ASKED QUESTIONS...............................................................................................55
1. WHAT IS THE OPERATING SYSTEM OF A920? ................................................................................... 55

A920 REFERENCE GUIDE
v1.0 | vi
2. THERE’S NO PHYSICAL KEYPAD; HOW CAN I MEET ADA COMPLIANCE? ..........................................55
3. POWER CONSUMPTION OF A920?....................................................................................................55
4. WHAT’S THE A920 SCREEN BRIGHTNESS? ........................................................................................ 55
5. DOES A920 SUPPORT DUAL BAND WI-FI?.........................................................................................55
6. HOW MANY SAM SLOTS DOES A920 HAVE?.....................................................................................55
7. HOW MANY SIM SLOT DOES A920 HAVE? ........................................................................................ 55
8. HOW TO TURN ON/OFF THE SCREEN SAVER?.................................................................................. 56
9. HOW TO SET THE SCREEN SLEEP TIME? ...........................................................................................56
10. WHAT IS THE RESET BUTTON?..........................................................................................................57
11. WHAT SHOULD I DO IF THE TOUCHSCREEN IS UNRESPONSIVE OR LAGS?....................................... 57
12. WHAT SHOULD I DO IF THE CAMERA IS NOT READING BARCODES?................................................57
PAX CUSTOMER SUPPORT................................................................................................................58

A920 REFERENCE GUIDE
v1.0 | 1
1. Introduction
The A920 is an all-in-one Android payment terminal with compact design that has a 5-inch IPS color
touchscreen with high anti-glare; the A920 combines the full features of an Android tablet in a powerful
payment terminal. The A920 delivers an integrated camera, hi-speed thermal printer and high capacity
battery to meet the daily demands across all dynamic Retail or Hospitality environments. A920 offers
complete communications including LAN, Wi-Fi, Bluetooth, and 4G Cellular that meet all your
customer’s needs in one place.
1.1 Purpose
This reference guide provides information about:
•Product Information
•Product Features
•Wireless connectivity
•Answers to frequently asked questions
1.2 Intended Audience
This guide is intended for use by:
•Software engineers who develop and maintain the payment application designs for the US
Payment card industry.
•Sales Executives and Sales Support who sell and support the device.
•Independent Sales Organizations who sell terminals and conduct end-user terminal training.

A920 REFERENCE GUIDE
v1.0 | 2
1.3 Acronyms and Terms
Name Description
DHCP
Dynamic Host Configuration Protocol - A network management protocol
used on IP networks. The DHCP server dynamically assigns an IP address
and other network configuration parameters to each device on the
network.
Micro SD
Removable flash memory card used to store information.
Smart Card
Chip card or integrated circuit card (ICC) that has a chip, is contactless, or both.
NFC
Near Field Communication - A form of contactless communication between
devices.
POS
Point of Sale or Point of Service
SIM Card
Subscriber Identity Module Card – A smart card that stores data GSM cellular
network subscribers.
SAM
A Secure Access Module (or Secure Application Module) is based on SmartCard
Integrated circuits and is used to enhance the security and cryptography
performance in devices, commonly in devices needing to perform secure
transactions, such as payment terminals. It can be used for cryptographic
computation and secure authentication against smart cards or contactless EMV
cards.
Smart Card
Chip card or integrated circuit card (ICC) that has a chip, is contactless, or both.
SSID
Service Set Identifier - The name for a Wi-Fi or WLAN network. Mobile devices
look for all networks in range when they attempt to connect to local Wi-Fi.
WAN
Wide Area Network - Cellular phone data networks run on a WAN. It covers a
broad area and many devices in that area.
Wi-Fi
A trademarked term used to describe the wireless networking technology that
allows computers and other devices to communicate over a wireless signal.
Based on IEEE802.11 standards.
LAN
Local Area Network

A920 REFERENCE GUIDE
v1.0 | 3
2. Packaging
This section covers the A920 packaging information.
2.1 A920 Overpack Carton
Twenty (20) A920 terminal boxes are shipped inside an A920 overpack carton. The dimensions of the
overpack carton are 16 in. x 14 in. x 11 in. (41cm x 36cm x 28cm). A packaged overpack carton weighs 32
lbs. (14.5 kgs).
2.2 A920 Terminal Box
The A920 box dimensions and shipping information:
•A920 box dimensions L x W x H = 6.92” x 3.07” x 2.24”
•A920 box weight = 3 oz

A920 REFERENCE GUIDE
v1.0 | 4
2.3 A920 Protective Cardboard Inserts
Cardboard inserts inside the terminal box protect the A920 during shipping. In addition, the terminal is
enclosed in a plastic wrapper.
2.4 A920 Box Contents
The A920 terminal box includes:
• 1 – A920 Terminal
• 1 – USB Charging Hub
• 1 – USB Type A to USB Type C Power Cable
• 1 – Installation Manual
• 1 – Quick Setup Guide
• 1 – Thermal Paper Roll
See the A920 Ordering Guide for detailed information on available accessories, including part numbers.
Installation
Manual
USB Charging
Cable
USB
Charging
Hub
Quick Setup
Guide
Thermal
Paper Roll
A920
Terminal
A920
Battery

A920 REFERENCE GUIDE
v1.0 | 5
3 Product Description
This section provides a description of the A920 terminal.
3.1 A920 Part Number Information
The A920 part number information is provided below. Included is the part number, the
description of the part number, and a detailed breakdown of the part number.
The A920 part number is detailed below. Each character in the part number has a value
and a description.
Image
Part Number
Description
A920-2AW-RD5-12EA
8GB FLASH | 1GB DDR |4G |Bluetooth
| Wi-Fi | LAN | Contactless | Front
Camera | QR Code Scanning Camera |
2 SAM
A920
A920

A920 REFERENCE GUIDE
v1.0 | 6
3.2 Serial Number Location on Terminal
The serial number for the A920 is located on the back of the device, directly above the back camera. Please
see the image below for reference.

A920 REFERENCE GUIDE
v1.0 | 7
4.0 A920 Functional Information
This section will point out the various features and functions of the terminal from the front, rear, left
and right-side angles.
4.1 Technical Details and Specs
Feature
Description
Camera
Dual cameras: 5MP front camera; 0.3 MP for 1D/2D code scanning
CPU
ARM Cortex A7 1.1GHz 4 core processor
Operating System
PAXBiz powered by Android 5.1
Memory
1GB DDR
8GB eMMC
Display
5” IPS Color Display
720 x 1280 pixels
Capacitive touchscreen
Audio
Built in speaker: maximum volume of at least 80dB at 10cm; supports
WAV, WMA, RAW, and MP3; audio is synchronized with video
Wireless
Communications
Bluetooth
Wi-Fi
4G cellular
SAM Card Slot
3 SAM card slots
SIM Card Slot
1 Standard SIM card slot
Card Readers
Magnetic Strip Card Reader
Triple Track
Bidirectional Read
Smart Card Reader
ISO 7816 Compatible
EMV2000 L1 & L2 Compliant
PBOC3.0 Compliant
Contactless Card Reader
Reads ISO14443 Type A/B Cards
Reads Mifare Cards
Read NFC Devices
Operating
Environment
Temperature
-10°C ~ 50°C
Humidity
5% ~ 96% (without condensation)

v1.0 | 8
A920 REFERENCE GUIDE
4.2 A920 Terminal View from All Sides
4.2.1 A920 Components, Interface, and Ports (Back)
Soft Base
Soft Base
Soft Base
Soft Base
5 Megapixel Auto Focus Rear
Battery Cover
Battery Hatch
MAC Address Label
Optional Stand POGO
Connectors
Charging Port
Volume Control Button
Printer Roll Hatch

v1.0 | 9
A920 REFERENCE GUIDE
4.2.2 A920 Components, Interface, and Ports (front)
Power Button
Front Facing Camera
Card Swipe Reader
Volume Control Button
Contactless Card
Reader and LCD
Screen
EMV Card Reader

v1.0 | 10
A920 REFERENCE GUIDE
5 Terminal Location
Position the terminal on a countertop, desktop or tabletop. Keep the terminal away from direct
sunlight, excessive dust, moisture and heat. Avoid locating the terminal near electrical devices that
might introduce interference such as microwave ovens or equipment with transmitters.

v1.0 | 11
A920 REFERENCE GUIDE
6 AC Power Connection
The A920 can be powered two ways:
• By plugging the power supply and power cord into the Micro USB port on the side of the A920.
• If the optional Charging Base is included, by plugging the power supply with power cord into the
Charging Base power port and seating the A920 on its Charging Base.
WARNING
DO NOT connect the other end of the power source until all the
other cables are connected first. Plugging in the power cord to
the power source before the other cables are installed may
result in damage to the terminal or connected devices.
After all terminal cables are connected, plug the terminal AC power cable to the power source.
WARNING
Do not disconnect the power supply while applications are
being downloaded to the terminal. The applications could be
downloaded improperly, or the Flash memory could be
damaged.

v1.0 | 12
A920 REFERENCE GUIDE
7 Terminal Ports
The following port is available on the terminal:
• Type C USB – Used for power and downloads
• Microphone – Supports handsfree microphone abilities.

v1.0 | 13
A920 REFERENCE GUIDE
8 Battery Information
This section provides battery information regarding charge time, run time and lifetime. It also includes
information regarding battery functionality at different battery levels.
8.1 Battery Specifications
Product Voltage Capacity Run
Time
Recharge
Time
Recharge
Cycles
Field
Replaceable
A920 5v 5250mAh 8 Hours 3 Hours >500 Yes
Product Battery Level
Percentage Description
A920
15% Low battery prompt, all parts still work normally
5% Low battery prompt, all parts still work normally
8.2 Charging Battery
The A920 will charge the battery until 100% full and then it will stop charging. The battery level status
can be viewed at the top of the screen in the battery icon and will display the current percent available.
When the terminal is charging a lightning bolt image will be displayed inside the battery icon and an
upward fill pattern will continually display during charging. If the battery is running low often, please
check the following for background usage:
• Brightness, Vibration and Power-Saving Mode
• Location Services, Running Apps and Notifications
• Wi-Fi and Bluetooth
To view the battery status from the IDLE screen, select: Settings > Enter Password > 9876 > ENTER > OK
> About > Status > Battery Status = Not Charging or Charging & Battery Level values will be displayed.

v1.0 | 14
A920 REFERENCE GUIDE
8.3 Remove and Install Battery
1. Carefully position the A920 so you have access to the bottom of the unit.
2. Using your finger, slide the tab on the back cover over toward the right of the terminal.
3. Lift and remove the battery cover. Once the cover has been removed, you can push up and pull
out the battery.