Dot Origin VTAP50 User manual


VTAP50 OEM Module
InstallationGuide
Revised June 2022 DRAFT v0.4

If you need help to set up or use VTAP50, beyond what is contained in this Installation Guide,
then please contact our support team.
Email: [email protected]
Download the latest documentation and firmware from https://vtap100.com/resources/
Telephone UK and Europe: [phone]
Telephone North America and Latin America: [phone] or [phone]
If you have any feedback on setting up or using VTAP50 or this documentation, then please
contact our support team. The product is constantly being reviewed and improved and we
value feedback about your experience.
Copyright 2022 Dot Origin Ltd. All rights reserved.
No part of this Installation Guide may be published or reproduced without the written
permission of Dot Origin Ltd except for personal use. This Installation Guide relates to correct
use of the VTAP50 only. No liability can be accepted under any circumstances relating to the
operation of the user’s own PC, network or infrastructure.
Dot Origin Ltd
Unit 7, Coopers Place Business Park, Combe Lane, Wormley
Godalming GU8 5SZ United Kingdom
[phone]

Contents
1 Using this guide 1
2 How the VTAP50 works 2
2.1 Default operation on factory settings 3
3 Mechanical installation 4
3.1 Power 4
3.2 Environment 4
3.3 Mounting points 5
3.4 Optional captive cable connection - RS232 and USB 6
4 Module integration instructions 8
4.1 Applicable FCCrules 8
4.2 Specific operational use conditions 8
4.3 RF exposure considerations 8
4.4 Antennas 9
4.5 Label and compliance information 9
4.6 Information on test modes 9
4.7 Additional testing requirements 9
5 Hardware lock to disable USB mass storage device 10
6 Disposal 11
VTAP50 OEM MODULE INSTALLATION GUIDE PAGE I

Safety instructions
WARNING: INTENDEDUSE
The VTAP50 equipment is intended for use by suitably qualified integrators, who will
integrate the VTAP50 OEM module (PCB) into their own hardware, without any changes or
modifications to the VTAP50 OEM module device. (An optional wallbox case can be
supplied.) Components mounted on the VTAP50 PCB are not user-serviceable. Product
safety has been tested to comply with IEC 62368-1.
WARNING: ESD PRECAUTIONS
We recommend careful handling and storage of Electrostatic Sensitive Devices (ESDs) during
installation. The VTAP50 OEM module (PCB) should always be protected by static shielding
bags for shipping or storage.
WARNING: POWERSUPPLY
Use either a MicroUSB to USB cable, or the optional captive cable, if any, to connect the
VTAP50 OEM module PCB to a PC. (Never connect both at the same time).
Using other cables will invalidate EMC emissions and immunity certifications.
The VTAP50 is rated at 5V DC (typ. 110mA, max 150mA) for power over USB.
VTAP50 OEM MODULE INSTALLATION GUIDE PAGE II

WARNING: USERDESIGNEDENCLOSURES
It is the responsibility of the integrator to ensure that their enclosure design for the VTAP50
retains compliance with EMC emissions and immunity standards.
This equipment has been designed to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
lReorient or relocate the receiving antenna.
lIncrease the separation between the equipment and receiver.
lConnect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
lConsult the dealer or an experienced radio/TV technician for help.
Integrators are responsible for evaluating their own end product (including the VTAP50 OEM
module PCB) and obtaining separate approvals for the markets in which it will be sold or
used.
VTAP50 OEM MODULE INSTALLATION GUIDE PAGE III

VTAP50 OEM MODULE INSTALLATION GUIDE PAGE 1
1  Using this guide
This guide is for first-time users of the VTAP50 OEM module.
Figure 1-1 VTAP50 reader board
It contains the information you need about your VTAP50 hardware.
Consult the VTAP100 Basic Configuration Guide for more about configuration and
maintenance features, including how to update the firmware on your VTAP50 unit, when a
new release is available. The firmware on a VTAP50 functions in exactly the same way as that
used on a VTAP100, so you can refer to VTAP100 configuration guides.
If you need help beyond what is contained in this guide please contact
[email protected].

2  How the VTAP50 works
With the VTAP50 OEM module connected to a PC, simply tap your smartphone against the
VTAP50. Your mobile NFC pass will be read and data sent to the connected PC.
Of course, the data can only be read if your phone contains a mobile NFC pass, which has
been issued in connection with the Merchant ID(s)/Collector ID(s) and key(s) that are known
to the VTAP50. The unit comes with default values, so that you can test Default operation on
factory settings before you begin customising any settings.
When the VTAP50 OEM module is connected to a computer it appears as a generic mass
storage device (like a memory stick). To configure your VTAP50, you simply edit or create text
files. These will be read automatically, and control the operation of the VTAP50. Consult the
VTAP100 Basic Configuration Guide for more detail. The firmware on a VTAP50 functions in
exactly the same way as that used on a VTAP100, so you can refer to VTAP100 configuration
guides.
By default the VTAP50 is fully upgradable in the field. However, the VTAP50 can be locked in
software or hardware, before deploying the unit, so that operation is no longer easily
changed.
VTAP50 OEM MODULE INSTALLATION GUIDE PAGE 2

VTAP50 OEM MODULE INSTALLATION GUIDE PAGE 3
2.1 Default operation on factory settings
Before anyone changes the configuration from its default, you can confirm that the unit is
working.
These steps demonstrate that the hardware can detect and interact with an OriginPass mobile
NFC pass, which is ready to work with the default configuration of your VTAP50.
1. Obtain an OriginPass from Dot Origin by visiting https://originpass.com/VTAP/ and add it
to your Google Pay or Apple Wallet.
2. Connect the VTAP50 to your PC, using a USB cable.
3. Open a text editor, such as Windows Notepad.
4. When you tap the OriginPass on the VTAP50:
lPass contents will be displayed in the open text editor.
lYour smartphone may signal with a buzz or beep.
Note: Some Android phones will only interact if their screen is on, although it does not
need to be unlocked. You may need to enable NFC in the settings for the smartphone.
Note: If the pass detected does not match the key and ID on the VTAP, or is moved away
too quickly to be read, the pass contents displayed will be an 8 digit random hex string,
such as '08E22AC1', different on each presentation. OriginPass contents will be a
consistent string of the type '3~ffymeK9f_mziYtA6~53999301628695~Valued'. The
separator '~' or '|' will depend on your keyboard language settings.
Note: If local security settings prevent or limit the use of removable storage devices, or
the connection of additional keyboards, an administrator may need to alter those
permissions.

3  Mechanical installation
The VTAP50 unit for OEM integration comprises a PCB with an integral antenna around the
perimeter of the board.
Figure 3-1 VTAP50 components - v1 Hardware
WARNING: Observe all Safety instructions when installing the VTAP50 PCB.
3.1 Power
Connect the PCB to a PC using either a MicroUSB to USB cable or the optional captive
cable (see section 3.4).
The VTAP50 is rated at 5V DC (typ. 110mA, max 150mA) for power over USB.
3.2 Environment
The VTAP50 must be stored and operated under the following conditions:
lAmbient temperature -25 to +70°C (-13 to 158°F)
lHumidity 0 to 95% RH non-condensing
lPressure 86-106kPa
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3.3 Mounting points
The PCB has 2.7mm diameter mounting holes for fixing the unit. Use 2-4 small nuts and
bolts to mount the board securely.
Figure 3-2 VTAP50 PCBmounting holes - v1 Hardware
The user’s smartphone should be able to tap within 10mm of the antenna on the PCB. The
antenna position should be clearly marked and easily accessed, so that users can position
their smartphone appropriately. Be aware that antennas are positioned differently in
different makes of smartphone. Apple iphones often have antennas near the top and
Android phones are more likely to have an antenna in the middle.

3.4 Optional captive cable connection - RS232 and USB
The PCB has a special connector J1 (an 8 pin, 2mm pitch header connector) which can be
used to attach a captive cable with a matching crimp housing, for RS232 or an alternate
USB connection.
The standard connector fitted to the PCB, in most cases, is a Hirose DF11CZ-8DP-2V male
header plug with shroud. The matching crimp housing is the Hirose DF11-8DS-2C.
CAUTION: If the J1 connector on your PCB does not include a shroud, to guide the
matching wires into place, you can use a wider range of mating connectors. Do please take
extra care to ensure your connecting cable is oriented correctly to match the pins.
Figure 3-3 VTAP50 captive power cable or RS232 connection -
VTAP50 v1Rev2 Hardware onwards
CAUTION: There are a small number of VTAP50 v1 Rev 1 units in circulation. Please be
aware that the pins on v1 Rev 1 hardware are pairwise switched.
Figure 3-4 VTAP50 captive power cable or RS232 connection -
VTAP50 v1Rev1 Hardware only
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The connector J1 includes both USB and RS232 signals, as follows:
Pin Function
1 GND
2 USB D+
3 +5V supply
4 USB D-
5 RS232 RXD (input)
6 Reserved (sense input)
7 RS232 TXD (output)
8 Reserved (sense GND)
Figure 3-5 Typical RS232 cable
A typical RS232 cable has the following DB9 female connector pinout:
Pin Function
2 TXD
3 RXD
5 GND
9 +5V supply
A PC or terminal RS232 connector is usually DTE (data terminating equipment), typically a
male DB9 with TXD on pin 3 and RXD on pin 2. The appropriate connecting cable is then a
DCE (data communications equipment) female DB9. TXD and RXD pins are swapped
between the DCE and DTE devices, so that the transmit pin on one connects to the receive
pin on the other.
The VTAP50 requires a 5V power supply, but not all RS232 devices have 5V on pin 9.
Either:
lDisconnect the USB cable before making the serial connection, if power will be provided
by J1 (pins 1 and 3) and the serial cable/host.
lOr retain a USB connection in addition to the serial connection, if power is not available
from your RS232 device.
Some serial cables have a separate DC 5.5/2.1mm barrel connector to supply power. In
these cables, typically, the centre pin is +5V and the outer barrel is GND.

4  Module integration instructions
The VTAP50 OEM module has been designed to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause
undesired operation
These instructions must be followed to maintain the FCC approval for the VTAP50
OEM module, when it is integrated into a host system.
CAUTION: Changes or modifications made to the VTAP50 OEM module, that have not been
expressly approved by Dot Origin Ltd could void the user's authority to operate the
equipment.
4.1 Applicable FCCrules
The VTAP50 OEM module operates at 13.56MHz and is therefore subject to FCC rules for
radio frequency devices. When a pass is presented to the reader, a person comes within
10mm of the device, so the rules relating to 'portable' transmitters apply.
4.2 Specific operational use conditions
The VTAP50 OEM module must be stored and operated under the following conditions:
lAmbient temperature -25 to +70°C (-13 to 158°F)
lHumidity 0 to 95% RH non-condensing
lPressure 86-106kPa
4.3 RF exposure considerations
This module complies with FCC RF radiation exposure limits set for an uncontrolled
environment. It is expected that VTAP50 OEM modules will be mounted in places that make it
possible for people to come within 10mm of the unit and it is therefore defined by the FCC as
a 'portable' device.
Screened cable should be used, wherever possible, to connect VTAP50 OEM modules to
other devices, to avoid interference from other equipment.
The end-user manual for the host equipment, that contains a VTAP50 OEM module, must
clearly indicate the operating conditions to be observed, so that the user remains in
compliance with current FCC RF exposure guidelines.
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VTAP50 OEM MODULE INSTALLATION GUIDE PAGE 9
4.4 Antennas
The VTAP50 OEM module has been tested with its integrated loop antenna, printed on the
PCB. There are no alternative antennas approved for use. The VTAP50 OEM module is
designed so that you can carefully break the integrated antenna from the board and connect
an external antenna. If an external antenna is attached, the new arrangement would require a
new FCC approval.
4.5 Label and compliance information
When FCC approval for the VTAP50 OEM module has been obtained, the integrator must
attach a label to the new equipment, hosting the VTAP50 OEM module, with specific text
required by the FCC. Please contact us for this information when needed.
4.6 Information on test modes
The following test modes are recommended to achieve states of maximum emission levels or
susceptibility in the VTAP50 OEM module:
1. VTAP50 OEM module powered on. Communicating with PC over USB. Continuously
reading tag.
2. VTAP50 OEM module powered on and tag present, but not communicating with external
device.
4.7 Additional testing requirements
The VTAP50 OEM module will only be FCC authorised for use in compliance with the specific
FCC transmitter rules listed on the grant. The integrator is responsible for compliance to any
other FCC rules that apply to the host, which are not covered by the modular transmitter
grant of certification.
The final host product, with the VTAP50 OEM module installed, will still require Part 15
Subpart B compliance testing, to evaluate transmission effects when the VTAP50
OEM module and host equipment operate at the same time. Be aware that additional
testing can be required on the final integrated system. We recommend integrators refer to
further advice from the FCC OET Knowledge Base, such as 996369 D04 Module
Integration Guide v02.

5  Hardware lock to disable USB mass storage device
You can lock the VTAP50 so that its firmware and configuration cannot be changed. You can
either do this in software, or simply disable the mass storage device in hardware.
A software lock prevents changes but leaves some files visible. A hardware lock means that
the VTAP50 will no longer be detected as a USB mass storage device. (It will still behave as an
HID keyboard device and, if enabled, the virtual COM port will behave as a composite USB
device consisting of HID keyboard and USB virtual COM port.)
You can use a hardware lock provided the jumper labelled LOCK (close to the
MicroUSB connector) remains accessible on a VTAP50 OEM module.
Note: On VTAP50 OEM modules, although the contact is present, connector pins and
jumpers will need to be supplied.
Connect a jumper across LOCK on the PCB to lock the device, preventing firmware or
configuration changes via the mass storage device. (It may still be possible to update the
firmware or configuration via the command interfaces of the virtual COM port or serial ports,
if they are enabled.)
Figure 5-1 Jumper positions on VTAP50 PCB v1 hardware
When you start the VTAP50, the presence of this jumper means the connected PC will not
detect a USB mass storage device. The VTAP50 will only be detected by the PC as a keyboard
(or keyboard and virtual COM port).
At any time you can remove the jumper across LOCK. When you restart the VTAP50, it will
be detected as a USB mass storage device and you will be able to make firmware or
configuration changes again.
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6  Disposal
For safety and sustainability, it is the responsibility of the integrator to ensure that when
equipment containing a VTAP50 reaches the end of its life, it is recycled in accordance with
WEEE Regulations within the EU.
VTAP50 (PCB and cables) should not be disposed of in general waste. If you
wish to discard electrical and electronic equipment (EEE), please contact your
supplier for further information.