Regulatory & Legal Information ............................................................................................................................ 3
Safety Information .................................................................................................................................................. 4
Revisions to this Document .................................................................................................................................... 5
Example ................................................................................................................................................................ 15
End Product ID Recommended Format ................................................................................................................ 16
The information in this document is subject to change without notice. PLUS ®
Location Services (“PLUS”) assumes no responsibility for inaccuracies or
omissions and specifically disclaims any liabilities, losses, or risks, personal or
otherwise, incurred as a consequence, directly or indirectly, of the use or
application of any of the contents of this document. For the latest
documentation, contact your local supplier or visit us online at
www.pluslocation.com.
PLUS, and the PLUS logo are trademarks of PLUS ® Location Systems.
Other trademarks and trade names used in this manual are the property of the
manufacturers or vendors of the respective products.
Intended Use
FCC Compliance
Manufacturer
Contact Information
This document examines the PLUS 2112 Modular Tag. This document is
intended for PLUS Location Systems internal use only.
U.S. Operation: This device complies with Part 15 of the FCC Rules. Operation is
subject to the following 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. (3) Operation on
board an aircraft or a satellite is prohibited. (4) Devices operating under this
section may not be employed for the operation of toys. (5) Except for
operation onboard a ship or a terrestrial transportation vehicle, the use of a
fixed outdoor infrastructure is prohibited. A fixed infrastructure includes
antennas mounted on outdoor structures, e.g., antennas mounted on the
outside of a building or on a telephone pole. This outdoor infrastructure
prohibition applies to intentional ultra-wideband (UWB) emitters.
Operation in disregard of these conditions is a violation of 47 U.S.C. 301 and
could subject the operator to serious legal penalties. Disassembling or
modifying the unit will void both FCC compliance and PLUS ® Location Systems
warranty provisions.
HQ and Regulatory Responsibility:
PLUS Location Systems USA, LLC
6767 Old Madison Pike NW, Suite 310
Huntsville, AL 35806
www.pluslocation.com
Model 2112 Modular Tag Manual
Page 3 of 16
Safety Information
Read and follow all instructions before using the Model 2112 Tag when it has been incorporated into an end
product. The following are typical safety instructions for a PLUS Tag that would apply to an end product using
the 2112 Module.
• Do not use the Tag if it has been damaged.
• Do not install in environments that exceed temperature and humidity requirements.
• Do not leave the Tag on a heat source.
• Never open the case on the Tag: There are no user serviceable parts or replaceable parts inside the
enclosure.
Model 2112 Modular Tag Manual
Page 4 of 16
Revisions to this Document
Version Comments Release Date
Rev A Initial release 02/10/2016
Rev B Revise to rev B 03/15/2016
Model 2112 Modular Tag Manual
Page 5 of 16
Introduction
The Plus Model 2112 Modular Tag is a complete PLUS UWB Tag design for integration into a PLUS printed
wiring assembly (PWA) and enclosure, and connected to a power source. It has the following features:
• Runs from a 3 volt DC power source (can operate down to 2 volts DC)
• Will transmit a UWB packet at a rate set at time of manufacture. Rate can be set to 1Hz, 6Hz, 8Hz,
10Hz, 15Hz or 20Hz.
• Meets
• Certified to comply with
•
FCC Section 15.212, rules concerning single modular transmitters.
FCC Part 15.519
This Module is limited to OEM installation Only.
Formatted: Font: (Default) +Body (Calibri), 12 pt
Model 2112 Modular Tag Manual
Page 6 of 16
Overview
Background
Tag tracking is accomplished by analyzing time-differences-of-arrival (TDOAs) of tag transmissions. When a tag
transmits a packet, PLUS ® Sensors that successfully receive the packet will send out information concerning
the tag packet, including a precise timestamp. The difference in the timestamp between sensors gives the
TDOA for that sensor pair/tag combination. At least three sensors must hear a tag in order to determine a
valid position for that tag.
Model 2112 Modular Tag
The 2112 Modular Tag allows the implementation of a controlled and defined UWB transmitter onto a PWA,
provided the specifications in the PLUS documentation with regards to PWB layout, board material,
component sources and values, and assembly of the 2112 Tag circuitry are followed.
The 2112 Tag is a small transmit only device with an active transmit duty cycle of less than 0.0026%. The Tag
has one integrated antenna optimized for vertical applications. The data packets include a tag identification
code, status information, and time of arrival data. The FCC ID is ZEH0116.
As mentioned in the introduction, the data packet rate can be set at manufacture to 1Hz, 6Hz, 8Hz, 10Hz,
15Hz, or 20Hz. This is done by selection of the value of one part and is identified in a table in the schematic.
PLUS Documentation:
The controlling PLUS documentation for the 2112 Modular Tag is:
• 300-0268A, PWB, 2112 TAG Module
• 200-0275A PWA, 2112 TAG Module
The PWB document controls the layout of the 2112Tag printed circuit board, hence the antenna and
transmitter, and it defines the printed circuit board parameters including board material and thickness.
The PWA document defines the connections of the 2112 Tag board circuitry and the AVL for all the
components. The PWA also contains the block diagram for the 2112 Tag.
Model 2112 Modular Tag Manual
Page 7 of 16
Specifications
Housing Material
Power Source 3V DC (can work down to 2V DC)
Ingress Protection Dependent on User enclosure design
Compliance
Temperature
Housing design varies to meet end user requirements. Housing material will
vary and may include ABS, Polycarbonate, HDPE, Silicone, or Rubber.
FCC Part 15
15.519(c) / 15.209
15.519(d)
15.519(b)
15.519(e)
EU Standard
EN 302 065-1 V1.3.1 (2013-06)
EN 302 065-1 V1.3.1 (2013-06)
EN 301 489-33 v1.1.1
EN 301 489-1 v1.9.2
FCC ID ZEH0116
RoHS
Typical Operating: -20⁰C to +55⁰C
Typical Storage: -30⁰C to +60⁰C
Relative Humidity Up to 95% non-condensing
Model Number 2112
Model 2112 Modular Tag Manual
Page 8 of 16
Mounting
Figure 1
-1
Depending on end user requirements, mounting methods will vary.
Identification
Per
FCC Section 15.212: The 2112 Tag
side of the board.
Figure 1-1 below shows the FCC ID as it appears on the bottom of the board right above the PLUS copyright
and PWB identification:
FCC identification (ID) will be printed via the silkscreen on the TOP
FOR THE USER IMPLEMENTATION OF THE 2112 TAG:
Per FCC Section 15.212: The FCC identification (ID) information for the 2112 Modular Tag must be visible on
the End product. The information must include product model number and the statement “CONTAINS FCC ID
ZEH0116”. Other information such as a unique serial number is encouraged but is not a requirement. PLUS
document 320-0315 provides a template for required information and layout for the End Product ID label.
Model 2112 Modular Tag Manual
Page 9 of 16
FCC Section 15.212 Compliance
The PLUS 2112 Tag complies with FCC Section 15.212 rules concerning single modular transmitters in the
following:
15.212 (a)
REQUIREMENT:
“Single modular transmitters consist of a completely self-contained radiofrequency transmitter device
that is typically incorporated into another product, host or device. Split modular transmitters consist of two
components: a radio front end with antenna (or radio devices) and a transmitter control element (or specific
hardware on which the software that controls the radio operation resides). All single or split modular
transmitters are approved with an antenna. All of the following requirements apply, except as provided in
paragraph (b) of this section.”
IMPLEMENTATION:
The 2112 Modular Tag consists of a microcontroller (also referred to as the processor) with timing
controlled by a crystal, a burst mode oscillator transmitter, and an antenna. There is also a connection
provided for an external 3 volt battery.
The microcontroller wakes up at one of 6 preset time intervals set by a component at the time of
manufacture: 1, 6, 8, 10, 15, or 20 times a second. When the microcontroller wakes up, it turns on the rest of
the Tag circuitry, then calculates and sends a packet of multiple bits spaced 500nS apart to key the
transmitter. The transmitter generates a single UWB burst for each logic 1 of digital data presented to it. The
transmitter then sends the UWB burst to the antenna.
When done, the microcontroller sets the rest of the Tag circuitry on the 2112 to power down, goes back
into its sleep mode, and waits until the set time interval is reached again to wake-up and repeat the process.
The 2112 Module Tag documentation defining the layout, board material, circuitry, and components, is
defined in PLUS documentation:
• 300-0268A, PWB, 2112 TAG Module.
• 200-0275A PWA, 2112 TAG Module.
15.212 (a) (1) (i)
REQUIREMENT:
Shielding of radio elements:
IMPLEMENTATION:
See 15.212 (b), limited modular approval.
Model 2112 Modular Tag Manual
Page 10 of 16
15.212 (a) (1) (ii)
REQUIREMENT:
“The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to
ensure that the module will comply with part 15 requirements under conditions of excessive data rates or
over-modulation.”
IMPLEMENTATION:
The 2112 Tag circuitry transmitter drive from the microcontroller is a logic gate providing a fixed drive
that will not overdrive the burst mode oscillator transmitter. The data rate to the transmitter is fixed from the
microcontroller by software and the crystal time base. The modulation is set by the microcontroller and
transmitter as simple on/off keying. The transmitter generates a UWB burst pulse whenever the
microcontroller clocks a logic high ON pulse to the transmitter input.
15.212 (a) (1) (iii)
REQUIREMENT:
Power supply regulation of the modular transmitter:
IMPLEMENTATION:
See (b), limited modular approval
15.212 (a) (1) (iv)
REQUIREMENT:
“The antenna must either be permanently attached or employ a ‘unique’ antenna coupler (at all
connections between the module and the antenna, including the cable)”.
IMPLEMENTATION:
The antenna on the 2112 Module is part of the PWB layout hence will be permanently attached to the
transmitter.
Model 2112 Modular Tag Manual
Page 11 of 16
15.212 (a) (1) (v)
REQUIREMENT:
“The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be
inside another device during testing for compliance with part 15 requirements. Unless the transmitter module
will be battery powered, it must comply with the AC line conducted requirements found in §15.207. AC or DC
power lines and data input/output lines connected to the module must not contain ferrites, unless they will be
marketed with the module (see §15.27(a)).”
IMPLEMENTATION:
The 2112 Modular Tag was tested at the compliance test facility in the stand-alone configuration as
defined above. It was powered by a 3 volt coin cell battery and connected directly to the module with no wire
leads or ferrites.
15.212 (a) (1) (vi)
REQUIREMENT:
“The modular transmitter must be equipped with either a permanently affixed label or must be capable
of electronically displaying its FCC identification number.”
IMPLEMENTATION:
The 2112 Tag PWB will contain the FCC identification number of the 2112 Module in the silkscreen. See
IDENTIFICATION section of this document.
15.212 (a) (1) (vi) (A)
REQUIREMENT:
“If the FCC identification number is not visible when the module is installed inside another device, then
the outside of the device into which the module is installed must also display a label referring to the enclosed
module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID:
XYZMODEL1” or “Contains FCC ID: XYZMODEL1.” Any similar wording that expresses the same meaning may
be used.”
Formatted: Space Before: 6 pt, After: 6 pt
IMPLEMENTATION:
The final product which contains the 2112 Module will be labeled or marked to indicate that it contains
FCC ID ZEH0116. Refer to PLUS drawing 320-0315 for recommended format.
Model 2112 Modular Tag Manual
Page 12 of 16
15.212 (a) (1) (vi) (B)
REQUIREMENT:
Electronic display of FCC identification number.
IMPLEMENTATION:
Not applicable, since the 2112 Modular Tag will not be installed in any product that has an electronic
display.
15.212 (a) (1) (vii)
REQUIREMENT:
“The modular transmitter must comply with any specific rules or operating requirements that ordinarily
apply to a complete transmitter and the manufacturer must provide adequate instructions along with the
module to explain any such requirements. A copy of these instructions must be included in the application for
equipment authorization”
IMPLEMENTATION:
These instructions will be included as a user’s manual with any upward product the 2112 Tag module will
be integrated into. i.e.: The instructions for the current PLUS Tags will apply to products incorporating the
2112 Tag module.
15.212 (a) (1) (viii)
REQUIREMENT:
“The modular transmitter must comply with any applicable RF exposure requirements in its final
configuration”
IMPLEMENTATION:
See all tests the 2112 Tag is compliant with under Section 15.212 (b).
15.212 (a),(2), (i),(ii),(iii), and (iv)
REQUIREMENT:
Split modular system.
IMPLEMENTATION:
The 2112 Module is not a split modular system so 15.212 (a) (2) sections (i),(ii),(iii), and (iv) do not apply.
Model 2112 Modular Tag Manual
Page 13 of 16
15.212 (b)
REQUIREMENT:
“Limited modular approval also may be granted in those instances where compliance with RF exposure
rules is demonstrated only for particular product configurations. The applicant for certification must state how
control of the end product into which the module will be installed will be maintained such that full compliance
of the end product is always ensured.”
IMPLEMENTATION:
The 2112 Modular Tag will:
• Not have shielding over the radio elements of the circuitry; 15.212 (a) (1) (i)
• Not have regulation of its power supply (It operates from an unregulated 3V DC power source).;
15.212 (a) (1) (i)
Control of the end product is achieved by the circuit design. Besides the 3V power source for the Tag, the
2112 circuitry is self-contained with no external circuit interface, so the microprocessor maintains the drive to
the transmitter, and the transmitter maintains the drive to the antenna.
Consequently, the 2112 Tag Module will apply for limited modular approval.
In compliance testing, the 2112 Tag with no shielding of the radio elements or regulation of the power
supply was compliant with:
• 15.519(c) / 15.209
• 15.519(d)
• 15.519(b)
• 15.519(e)
Model 2112 Modular Tag Manual
Page 14 of 16
Example
Figure 1-2, below, shows an example of a 2112 Module integrated onto a PWA for potential use in an end
product. This example is one of several possible PWA’s PLUS could put the 2112 Modular TAG circuitry per the
controlling PLUS documentation.
Figure 1-2.
Model 2112 Modular Tag Manual
Page 15 of 16
End Product ID Recommended Format
The PLUS drawing, 320-0315, that has the recommended format for the label that would include the 2112 FCC
ID number, is presented below for information.
Model 2112 Modular Tag Manual
Page 16 of 16
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