PAX S920 User manual

S920 Reference Guide
V1.0
3-6-2020

v1.0 | i
S920 Reference Guide
Preface
S920 Reference Guide
Copyright © 2020 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: [e-mail]
URL: www.pax.us

v1.0 | ii
S920 Reference Guide
Revision History
Date Version Description
3-6-2020 V1.0 Initial Release

v1.0 | iii
S920 Reference Guide
Table of Contents
Preface .............................................................................................................................. i
Technical Support ...................................................................................................................................................... i
Technical Support Contact Information .............................................................................................................. i
Revision History ............................................................................................................... ii
Purpose ................................................................................................................................................1
Intended Audience .............................................................................................................................1
Acronyms and Terms .........................................................................................................................2
Packaging .........................................................................................................................3
Overpack Carton .................................................................................................................................3
Box Dimensions ..................................................................................................................................3
Cardboard Inserts ...............................................................................................................................4
Box Contents .......................................................................................................................................5
Part Number, Serial Number, and IMEI Info ......................................................................6
PN Package Info ..................................................................................................................................6
Terminal SN Location .........................................................................................................................6
IMEI Number Location .......................................................................................................................7
Functional Information ....................................................................................................7
Technical Details and Specifications ...............................................................................................7
Front View ............................................................................................................................................8
Back View .............................................................................................................................................8
Side Views ............................................................................................................................................9
AC Power Connection .......................................................................................................9
Terminal Location ..........................................................................................................10
Basic Operation Instructions .......................................................................................... 10
Power ON/Power OFF ......................................................................................................................10
Replace Paper Roll ............................................................................................................................10
Cleaning the Device .........................................................................................................................12
Battery Info .................................................................................................................... 12
Battery Power Indicator ...................................................................................................................12
Charging ............................................................................................................................................12
Remove and Install Battery .............................................................................................................12
SIM, SAM, and/or Micro SD Card Installation ..................................................................14
Card Readers ..................................................................................................................18
Magnetic Stripe Reader ...................................................................................................................18
EMV Card Reader ..............................................................................................................................18
NFC/Contactless Card Reader ........................................................................................................19
Setup Communications .................................................................................................. 19
Wireless ..............................................................................................................................................19
Wi-Fi ....................................................................................................................................................23
Frequently Asked Questions ..........................................................................................25
PAX Customer Support ................................................................................................... 30

v1.0 | iv
[DOCUMENT TITLE]

S920 Reference Guide
v1.0 | 1
1. Introduction
The S920 mobile terminal is lightweight, versatile, and designed for the hospitality and restaurant
industries. The S920 offers portability and ease of use for both merchant staff and customers. The S920
boasts a high resolution large color touch screen and delivers faster and easier transactions with
exceptional coverage and performance.
1.1 Purpose
This reference guide provides information about:
• Installation
• Physical and wireless connectivity
• Answers to frequently asked questions
• Troubleshooting
1.2 Intended Audience
• Point of Sale clerks who interact with the S920
• Software engineers who develop and maintain the payment application designs for the
payment card industry
• Sales Executives and Support who sell and support the device
• Independent Sales Organizations who sell terminals and conduct end user terminal training

S920 Reference Guide
v1.0 | 2
1.3 Acronyms and Terms
Acronym Definition
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.
ECR Electronic Cash Register
LKI Local Key Injection
Micro SD Removable flash memory card used to store information
NFC Near Field Communication — A form of contactless communication between
devices.
OS Operating System
POI Point-of-Interaction
POS Point of Sale or Point of Service
PSAM Purchase Security Application Module — Small security module which is
placed in payment terminals and looks like a SIM card for a cell phone.
SIM Card Subscriber Identity Module Card — A smart card that stores data GSM cellu-
lar network subscribers.
TF TransFlash — MicroSD memory cards were originally named TransFlash, T-
Flash, or TF cards. TF and MicroSD cards are functionally identical so both
types of cards can operate in devices made for the other.
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.
WLAN Wireless Local Area Network — Any wireless local area network, no matter
what technology is used. Wi-Fi is one type of WLAN.

S920 Reference Guide
v1.0 | 3
2. Packaging
This section covers the S920 packaging information. All accessories listed are Standard. See the S920
Ordering Guide for more information on all available accessories, including part numbers.
Please Note: Product images shown may be different than actual product received.
Before removing the terminals from the box, note the S920 part number and serial number are affixed
to labels on the outside of the box. Retain the original box and inserts in case the unit needs to be
returned to PAX for service.
2.1 Overpack Carton
• Overpack dimensions: 16 in x 13 in x 14 in
• Overpack shipping weight per box: 27 lbs
• How many S920 boxes can fit into an overpack box: 20
• How many S920 overpack boxes fit onto a pallet: 40
Retain the original overpack carton in case unites need to be returned to PAX for service.
Please Note: Part number and serial number labels for each of the terminals packed into the overpack
carton are affixed to the side of this box.
Before removing the terminals from the box, note the S920 part number and serial number are affixed
to labels on the outside of the box. Retain the original box and inserts in case the unit needs to be
returned to PAX for service.
2.2 Box Dimensions
S920 box dimensions and shipping information:
• S920 box dimensions: 8 in x 7 in x 3 in
• S920 box weight: 2 lbs
Before removing the terminals from the box, note the S920 part number and serial number are affixed
to labels on the outside of the box. Retain the original box and inserts in case the unit needs to be
returned to PAX for service.
Please Note: Part number and serial number labels for the S920 terminal are also affixed to the
underside of each terminal.

S920 Reference Guide
v1.0 | 4
2.3 Cardboard Inserts
Cardboard inserts inside the terminal box protect the S920 during shipping. In addition, the terminal is
enclosed in a plastic wrapper.
Inserts inside the S920 box house the terminal, USB to Micro USB cable, AC power adapter, and thermal
paper.

S920 Reference Guide
v1.0 | 5
2.4 Box Contents
Contents Qty.
S920 Mobile Terminal 1
USB to Micro USB Cable 1
AC Power Adapter 1
Thermal Paper 1

S920 Reference Guide
v1.0 | 6
3. Part Number, Serial Number, and IMEI Info
3.1 PN Package Info
The S920 part number can be found on the underside of the terminal beneath the printer paper lid. The
part number can also be found on the front flap of the S920 terminal box.
3.2 Terminal SN Location
The serial number for the S920 can be found on the underside of the terminal beneath the printer
paper lid. The serial number can also be found on the front flap of the S920 terminal box.

S920 Reference Guide
v1.0 | 7
3.3 IMEI Number Location
IMEI (International Mobile Equipment Identity) is a unique number for identifying a device on a mobile
network. This number has 15 digits and is assigned to every GSM device.
1.Power on the S920 Mobile Terminal
2.Once the Starting Prolin OS screen displays, Press [2] rapidly and continuously. The S920
[MAIN MENU] will open.
3.Select [Terminal Info]. The [System Info] screen will open.
4.Scroll down until the [IMEI Number] displays on screen.
4. Functional Information
This section covers the various features and functions of the S920 mobile terminal.
4.1 Technical Details and Specifications
The technical details and specs for the S920 mobile terminal are listed in the following table.
Feature Description
OS Prolin, Linux Based
Memory 256MB Flash 128MB DDRSDRAM
Button 10 numeric & letter keys, 5 dedicated function keys
CPU 32-bit ARM 11
Magnetic Reader Track 1/2/3, bi-directional
Smart Card Reader MEV L1 & L2 certified
Contactless (optional) MasterC ard PayPass & Visa payWave, American Express
ExpressPay, Discover DPAS, InteracFlash, ISO/IEC 14443 Type / VB,
Mifare®, Felicia, NFC
Audio Speaker
Communications 4G (CatM, for ATT & Verizon)
Single Band Wi-Fi
Bluetooth 4.0
Physical L x w x H (mm): 150 x 78 x 46 or 16.3 x 78 x 55 | Weight (g): 330
Cable 1 x USB Cable
Operating Environ-
ment
Temperature: 0° C – 50° C (32° F – 122° F) | Humidity: 10% – 93% rel-
ative humidity, non-condensing
Storage Environ-
ment
Temperature: -20° C – 70° C (4° F– 158° F) | Humidity: 10% – 93%
(non-condensing)

S920 Reference Guide
v1.0 | 8
4.2 Front View
4.3 Back View

S920 Reference Guide
v1.0 | 9
4.4 Side Views
5. AC Power Connection
The S920 mobile terminal has a USB port on the left side of the terminal. This port is used with the USB
to Micro USB cable and AC power adapter to charge the terminal.

S920 Reference Guide
v1.0 | 10
6. 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 and blow dryers.
7. Basic Operation Instructions
The basic operations of the S920 mobile terminal are described below.
7.1 Power ON/Power OFF
Power ON: Press and hold the power button until the screen display lights up and the terminal
successfully turns on.
Power OFF: Press and hold the power button until the terminal powers off. The screen display will go
dark as the terminal powers off.
7.2 Replace Paper Roll
This section covers installing a roll of thermal paper.

S920 Reference Guide
v1.0 | 11
1.Carefully open the paper lid.
2.Install the thermal paper roll with the paper coming out from the top of the roll.
3.Pull about 6 in of paper from the roll.
4.Close the paper lid until it snaps into place.

S920 Reference Guide
v1.0 | 12
7.3 Cleaning the Device
This section covers the proper cleaning instructions for the S920 mobile terminal.
1.Do not immerse the device in water or liquid.
2.Do not spray water or cleaner into EMV Card Reader or ports.
3.To clean the screen, apply distilled water or mild glass cleaner onto a soft, lint-free cloth and
gently wipe the terminal screen.
4.To clean the terminal, apply distilled water or plastic-safe cleaner onto a soft, line-free cloth
and gently wipe terminal.
Warning: Do not use an industrial strength or abrasive cleaner as it may damage or scratch the screen.
8. Battery Info
The S920 includes a Li-ion battery 2600mAH 3.7V.
8.1 Battery Power Indicator
The Battery Icon at the top of the screen indicates the current battery level.
8.2 Charging
To charge the S920 battery, plug the AC power adapter with the Micro USB cable attached into an
outlet then insert the Micro USB into the port on the left side of the S920.
Alternatively, the Micro USB cable (without the AC power adapter) can be inserted into a USB port on a
computer or laptop then inserted into the port on the left side of the S920.
8.3 Remove and Install Battery
1.Carefully position the S920 to access the bottom of the terminal.
2.Lift the tab on the back cover to remove the cover.

S920 Reference Guide
v1.0 | 13
3.Locate the battery and carefully pull the battery power connector out of the socket

S920 Reference Guide
v1.0 | 14
4.To install a battery, locate the battery power connector. Position the connector against the
terminal side connector
5.Carefully insert the battery connector into the terminal side connector. Lay the battery down
into the battery cavity
6.Place the battery cover back onto the terminal with the top side first and then snap the bot-
tom closed
9. SIM, SAM, and/or Micro SD Card Installation
Warning: Power off the S920 and remove all power before installing to S920 or Micro SD card.
1.Carefully position the S920 to access the bottom of the terminal.
2.Life the tab on the back cover to remove the cover.

S920 Reference Guide
v1.0 | 15
3.Locate the battery and carefully pull the battery power connector out of the socket.
4.The S920 mobile terminal supports the following slots:
• SIM1
• SIM2/SAM2 (Note: This slot is used as a SAM slot only for S920s sent to the US region.)
• SAM1
• SD Card