Elatec TWN4F15 RFID Reader Writer Module User Manual
- June 5, 2024
- ELATEC
Table of Contents
Elatec TWN4F15 RFID Reader Writer Module
Introduction
The transponder-reader TWN4 Mini Reader MIFARE NFC is a device for reading and writing RFID transponders with a frequency of 13.56MHz. There are different versions of TWN4 devices available, which cover a large range of transponder types.
Technical Data
Nominal Voltage: 5V
Rated Power: 2.5W
Requirements for External Power Supply Unit
- Limited power source according to IEC60950-1 or PS2 classified IEC62368-1
- Short-circuit current < 8A
Operating Temperature: -25 °C up to +80 °C
Getting Started
Cable Connection
In order to start operating a TWN4 transponder reader, it simply has to be
connected to a host.
Enumeration (USB Only)
This is only applicable for the USB version: Once the device has been powered
up, it is waiting for completion of the enumeration by the USB host. As long
as the device is not enumerated, it is entering a minimum power consumption
mode.
Initialization
After powering up and enumeration (in USB mode), the device is turning on the
built-in transponder-reader logic. Some transponder-reader modules need some
kind of initialization, which is performed in this step.
Normal Operation
As soon as the device has completed the initialization, it is entering normal
operation. During normal operation the device is searching for a transponder
continuously.
Detection of a Transponder
If a transponder is detected by the reader, following actions are performed
- Send the ID to the host. By default, the USB device sends by emulating the keystrokes of a keyboard.
Within the two seconds timeout, the transponder, which just has been
recognized will not be accepted again. This prevents the reader from sending
identical IDs more than one time to the host.
If during the two seconds timeout a different transponder is detected, the
complete sequence restarts immediately.
Suspend Mode (USB Only)
The USB version of the transponder-reader supports the USB suspend mode. If
the USB host is signaling to suspend via the USB bus, the transponder-reader
is turning off most of its power-consuming peripherals. During this operation
mode, no detection of transponders is possible. Once the host is resuming to
normal operation mode, this is also signaled via the USB bus. Therefore, the
transponder-reader will resume to normal operation, too.
List of Antennas
Compliance statements
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Caution!
The Federal Communications Commission (FCC) warns the users that changes or
modifications to the unit not expressly approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
FCC §15.105 (b):
Note: This equipment has been tested and found 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:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
RSS COMPLIANCE STATEMENT
This device complies with Industry Canada’s license-exempt RSSs. Operation is
subject to the following two conditions:
- This device may not cause interference; and
- This device must accept any interference, including interference that may cause undesired operation of the device
End device labeling instructions
FCC notes for all hosts devices. The end device must be labeled with:
Contains FCC ID: WP5TWN4F15
Contains IC: 7948A-TWN4F15
HVIN: EL20205
Labeling Requirements (Verification)
In addition following statement shall be placed on the device:
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Labelling Requirements (Declaration of Conformity)
Where the product is so small or for such use that it is not practicable to
place the statement on it, the statement can be placed in a prominent location
in the instruction manual.
Information to the user
-
For Class A devices the manual of the host shall include the following statement:
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. -
For Class B devices the manual of the host shall include the following statement:
Note: This equipment has been tested and found 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 reason-able 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 deter-mined 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: -
Reorient or relocate the receiving antenna.
-
Increase the separation between the equipment and receiver.
-
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-
Consult the dealer or an experienced radio/TV technician for help.
Modification of equipment
The instruction manual of the host shall include the following statement:
Changes or modifications made to this equipment not expressly approved by the
party responsible for compliance may void the FCC authorization to operate
this equipment.
Special accessories
Where special accessories such as shielded cables and/or special connectors
are required to comply with the emission limits, the instruction manual shall
include appropriate instructions on the first page of the text describing the
installation of the device.
Final Compliance of end product
The integrator is responsible for the final compliance of the end product
including this certified transmitter module. CFR 47 §15.101 give guidance in
terms of applicable equipment authorization procedures of different end-
products. Typically compliance to subpart 15 B (§15.107 and 15.109) Class A or
B including verification of the subpart 15 C compliance (field strength of
fundamental and out-of-band emissions) of the transmitter parameters apply.
Simultaneous transmission
When the host product supports simultaneous-transmission operations the host
manufacturer needs to check if there are additional RF exposure filing
requirements due to the simultaneous transmissions. When additional
application filing for RF exposure compliance demonstration is not required
(e. g. if the TWN4 MultiTech 3 module in combination with all simultaneously
operating transmitters complies with the RF exposure simultaneous transmission
SAR test exclusion requirements), the host manufacturer may do his own
evaluation without any filing, using reasonable engineering judgment and
testing for confirming compliance with out-of-band, restricted band, and
spurious emission requirements in the simultaneous-transmission operating
modes.
If additional filing is required please contact the person at GMMC GmbH
responsible for certification of the TWN4 MultiTech 3 module.
Service Address
In case of any technical questions, please contact:
Elatec GmbH
Zeppelinstr. 1
82178 Puchheim
Germany
Phone: +49 (0) 89 5529961 0
Fax: +49 (0) 89 5529961 129
Email: info-rfid@elatec.com
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