Guard RFID Solutions TE GENERATOR OF LOW FREQUENCY FILED USED FOR DETECTION OF ACTIVE TAGS AT THE PORTAL User Manual

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Date Submitted	2012-08-13 00:00:00
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Document Title	Microsoft Word - 07-00051-110 _Tag Exciter Installation Manual_.docx
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Document Author:	jlee

Tag Exciter Installation Manual
07‐00051‐110
Tag Exciter
Installation Manual
Patient Protection
Infant Security
Asset Management
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Copyrights and Trademarks
©2009 Guard RFID™ Solutions Inc. All Rights Reserved
This manual is subject to copyright protection and all rights are reserved. Under copyright laws, the
manual many not be copied or translated, in whole or in part, in any manner or format, without the
written permission of Guard RFID™ Solutions Inc.
All software in which Guard RFID™ Solutions Inc. or its affiliates hold a proprietary interest is also subject
to copyright protection and all rights are reserved. No party may use or copy such software, in any
manner or format, except to the extent that Guard RFID™ Solutions Inc., or an affiliate of Guard RFID™
Solutions Inc., grants them a license to do so.
Trademarks
Guard RFID is a registered trademark of Guard RFID™ Solutions, Inc.
MySQL is a registered trademark of Oracle Corporation
Windows is a registered trademark of Microsoft
Revisions
Specification subject to change without notice.
Contact Information
Guard RFID Solutions, Inc.
#140 – 766 Cliveden Pl
Delta, BC Canada V3M 6C7
Tele: 604.998.4018
Fax: 604.524.4018
www.guardrfid.com
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.
NOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT
EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH
MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
©2010 GuardRFID
07‐00051‐110
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Contents
Installing the Tag Exciter ........................................................................................................................... 1
Determine Best Location ...................................................................................................................... 1
Using Tag Exciters to Determine Direction of Travel and Room Discrimination .................................. 5
Connecting the Tag Exciter ....................................................................................................................... 8
Tag Exciter Inputs, Outputs, Indicators................................................................................................. 8
Tag Exciter Power Connections............................................................................................................. 9
Ensuring Compliance with RFI Rules and Regulations .......................................................................... 9
Using the TE Disable (Door In) ............................................................................................................ 10
Tuning the Tag Exciter............................................................................................................................. 11
User Interface ..................................................................................................................................... 11
User Interface Menu Navigation......................................................................................................... 12
Setting the Proper TE Field Size .......................................................................................................... 14
Setting the Tag Exciter ID.................................................................................................................... 15
Setting the RF Sensitivity .................................................................................................................... 16
Setting the Modes............................................................................................................................... 16
Reading the Error Codes ..................................................................................................................... 17
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
©2010 GuardRFID
07‐00051‐110
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Installing the Tag Exciter
Tag Exciters have three main functions. They are used to trigger an alarm at an egress point, pin
point a tag’s location, and/or provide a reference point for when the tag changes floors via a
stairwell or elevator. The Tag Exciter transmits a 125 KHz low frequency signal (field) that is
detected by the RFID tag. Detection range of the Tag Exciter is adjustable from two to 18 feet.
This section describes the two steps to installing the Tag Exciter:
 Determine the best location
 Install device.
Determine Best Location
The location of the Tag Exciter is critical to the proper operation of the system. An incorrectly
placed tag exciter may cause nuisance alarms from nearby areas where tags are normally present,
or fail to detect a tag when exiting through a doorway.
NOTE: Only 2 TEs may be associated with a TRC in the Argus software or with an
AtGuard Controller when configuring a gate.
The Tag Exciter field can be visualized as a large sphere with the tag exciter in the centre of the
sphere. As the Tag Exciter level is increased, so does the size of the sphere. The sphere ranges
from 2 to 19 feet in diameter according to the setting.
When a tag enters the exciter field, the Tag Exciter field is detected by the tag and events are
generated by this action. An event may be an exit warning or alarm.
For networked applications a Tag Exciter may be used for transitioning a tag from the previous
floorplan to the present floorplan when moving vertically through a building, or trigger a custom
event such as direction of travel (using 2 or more tag exciters). It should be placed in a location
where the exciter field is only generated in the areas where you would like the tag to be detected.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Environmental and Location Considerations

Do not mount Tag Exciter directly on metal – such as elevator cars. Use ½ inch nylon or plastic
spacers between the Tag Exciter and the metal surface. Mounting the Tag exciter directly on
metal will detune the transmitting antennas.

Do not mount Tag Exciter in a location where there is metal between the Tag Exciter and the
intended tag detection area such as on top of an elevator car or behind a metal door. RF does
not propagate well through the metal, causing the tag to not see the exciter field.
Tag Exciter
Metal
Tag

Consider traffic patterns and legitimate/acceptable tag locations when installing the Tag Exciter.
As an example, the best location (shown below) creates a tag exciter field in direct proximity of
the protected door, while at the same time maintains a suitable distance from the unprotected
doors and rooms adjacent to the stairwell where tags are allowed to be located.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
Poor
Location –
Exciter field
crosses traffic
path and enters
into adjacent
room
Up
Best
Location –
Exciter field
does not
enter into
adjacent
rooms
07‐00051‐110
Normal Traffic Pattern
YES
NO
Protected
Door
©2010 GuardRFID
Unprotected
Door
Proprietary and Confidential
Tag Exciter Installation Manual

07‐00051‐110
Install Tag Exciter in the location that creates the smallest, most compact field.
Ceiling
Tag Exciter
Not recommended ‐ poor floor
discrimination. Tag Exciter may
bleed through upper floor.
Plenum Space
Dropped Ceiling
Ideal location – directly
adjacent to the latch side of the
door
PRO ‐‐ creates the smallest,
most compact field.
CON ‐ more prone to damage or
tampering ‐ may not meet the
facility aesthetic requirements.
Better location‐ Approx 8 or 9
feet from floor
PRO ‐ hidden from view
CON ‐ creates a large field – can
be prone to upper floor bleed.
Best location Inches above the
door frame
PRO‐ creates a smaller, more
compact field.
Floor
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Using Tag Exciters to Determine Direction of Travel and Room Discrimination
Two or more Tag Exciters may be used to determine direction of travel through a portal, thereby
identifying precisely the location and the moment in time a tag transfers from one zone to
another.
To determine direction of travel using tag exciters, you must understand how the Argus system
treats zones. During software configuration, zones are defined on a floorplan by outlining the
zone with a border. Adjacent zones are defined by drawing zones with adjacent borders. The Tag
Exciters, identified by their serial numbers are then dragged onto the floorplan in the exact
locations they are installed. In the simplest example two tag exciters are used. One tag exciter is
installed in the first zone and the second Tag Exciter installed in the second zone directly adjacent
to the first.
When a tag enters the first tag exciter field, its location is pinpointed at the perimeter of the first
zone. As it crosses over to the second zone, the tag will be immediately pinpointed at the
perimeter of the second zone at the exact time it crossed over.
Multiple tag exciters may be placed in either zone to accommodate various floorplan
configurations. Keep in mind a few basic rules.
1. The tag must clearly enter a Tag Exciter field in the first zone without being in a tag exciter
field located in the second zone.
2. The tag must clearly exit from a Tag Exciter field in the second zone without being in a tag
exciter field located in the first zone.
3. Tag Exciter fields in either zone may overlap slightly
4. More than one Tag Exciter may be used in either zone to cover wide areas or prevent tags
from slipping by undetected.
Study the examples below to determine the best tag exciter locations for your application.
Example A –determining direction of travel and zone transference in a corridor.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Example B Determining direction of travel and zone transference to a wide area.
Note the traffic patterns in this example. Two tag exciters tuned for a larger field are installed on
one side of the doorway to capture tags as they disperse to different areas of the building. Tag
Exciters are located to ensure the tag enters into one field and clearly transitions to the field(s) in
the adjacent zone.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Example C Room Discrimination
As a tag enters a zone/room the tag will remain located in that zone/room until it enters another
zone/room or crosses the Tag Exciter into zone 14. Note: if a tag leaves a zone/room and does not enter
another room or cross the Tag Exciter to zone 14, the system can relocate the tag in the corridor using
RSSI data obtained from tag reader receivers.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Connecting the Tag Exciter
The purpose of this section is to outline the general operation and wiring of the Tag Exciter (TE).
Tag Exciters have three main functions. They are used to trigger an alarm at an egress point, pin
point a tag’s location, and/or provide a reference point for when the tag changes floors via a
stairwell or elevator. The Tag Exciter transmits a 125 KHz low frequency signal (field) that is
detected by the RFID tag. Detection range of the Tag Exciter is adjustable from two to 18 feet.
Tag Exciter Inputs, Outputs, Indicators
Tag Exciter Inputs and Adjustment Points
Inputs Description
Power (12VDC Input) 12VDC supply (11.5V Min, 14V Max)
Door In Disables LF field when pins are shorted
Adjustments
Reset Key Resets TE processor, custom settings are maintained
Tank Circuit Tuning LF Antenna tuning DO NOT ADJUST
Test Key Feedback mode for LF field adjustments
SEL key Selects between LF/ID/RF/MOD adjustment modes
Enter Key press to enter value when adjusting
INC Key increments value during adjustments
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
Indicators
LED 5
Field LED
Red Power Fault LED.
Red LED, TE in undesirable
condition when flashing
Yellow LED
Comm LED
Green LED
LF LED
ID LED
Lit when in LF adjust mode
Lit when in ID adjust mode
UHF Sensitivity Setting
(Not used)
Lit when adjusting MODE
features
Numerical indicator
showing status or level
Alarm LED
RF LED
MOD LED
7 Seg. LED
Readout
07‐00051‐110
Off
Normal
On
Over/undervoltage
Normal
N/A
LF Field off
Normal ‐ LF field on
No input
voltage
Network communication
established
Normal
Normal
In LF adjust mode
In ID adjust mode
Flashing
N/A
TE Error ‐ Check Error
code display
Recalibrating field size
Power on, no network
communication (Normal
operation for @ Guard)
N/A
N/A
Normal
In RF adjust mode
N/A
Normal
In Mode select mode
N/A
Normal
Indicates current condition
N/A
Tag Exciter Power Connections
The TE input voltage is 12VDC and may be powered by a central power supply or a PoE Splitter
and a PoE network switch. Note that the TE connects to the network using a 433MHz link to the
TRC and does not require a TCP/IP connection. PoE Powered TEs do not use the data component
of the PoE switch.
When powering the TE with a PoE Switch, ensure to use the recommended PoE Splitter
(GuardRFID P/N 61‐24002). PoE voltage is 48VDC from the switch and needs to be
converted to 12VDC to prevent damage to the TRC.
Connect the TE to 12VDC / 1A power source either from the PoE Splitter or a 12VDC central power
supply as shown below. Power supply voltage for the TE must not exceed 14VDC.
Ensuring Compliance with RFI Rules and Regulations
In order to ensure compliance with relevant RFI rules and regulations, the cable used to supply
power for Tag Exciter must have ferrite suppressor attached. The ferrite suppressor is supplied
with Tag Exciter and should be clamped onto the power cable as close as possible to Tag Exciter
enclosure.
The part number of ferrite suppressor is BF1835, manufactured by API Delevan Inc. Any
equivalent ferrite suppressor can be used.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Using the TE Disable (Door In)
The TE LF field can be disabled by adding a switch to the Door In input of the Tag Exciter. This
feature can be used when you require the field to be switched on and off quickly. The
example below illustrates connection to a N/C door switch (door closed/contact closed).
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Tuning the Tag Exciter
The purpose of this section is to show how to tune the Tag Exciter for optimal coverage in your
application.
The Tag Exciter field can be visualized as a large sphere with the tag exciter in the centre of the
sphere. As the Tag Exciter level is increased, so is the size of the sphere. The sphere ranges from 2
to 18 feet in diameter according to the setting.
Adjustments for the tag exciter include LF Field size, Changing the ID number (electronic serial
number transmitted in the beacon), RF sensitivity (not field adjustable), and mode settings
User Interface
The TE User interface allows you access to the TE menu and adjustment tools.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
User Interface Menu Navigation
The user interface is accessed by pressing any key. Exit the user interface by pressing and holding
the SEL and ENT keys, or if there is no key presses for 10 minutes the user interface is turned off
automatically.
The user interface navigation chart is shown below.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
Held Sel
&Ent
TE Reset
07‐00051‐110
UI
Timeout
General Keys:
To activate the user interface – press any key.
To turn the user interface off – press and hold SEL and ENT
keys
Enter/Exit Mode settings - Press & Hold SEL Key.
User interface off
Changing LF, ID, and RF Settings:
INC key – Increments setting.
ENT key – Saves setting.
Any Key
LF Setting
Changing Mode Setting:
INC – Toggles setting (Decimal Point of 7-Seg display on/off)
ENT key – Saves setting.
SEL key
Test Mode:
Test – Toggles test mode on/off. Test LED indicates when test
mode is active.
ID setting
SEL key
RF Setting
SEL key
SEL key
Mode Root Menu
Held SEL
key
Mode 0
SEL key
Mode 1
SEL key
Mode N
SEL key
Error Code Display
Held
Sel Key
SEL key
To set the LF field size




Press any key to activate the user interface
Observe the LF LED is lit.
Press the INC key until the display reads the desired field size.
Press ENT to save the selected value into TE memory
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
This table provides Tag Exciter current consumption
and LF field size for each of 16 possible settings.
These measurements are done under the following conditions:
Power Supply
12.3 VDC
Tag used:
PT1
Tag LF antenna is oriented in
LF Antenna:
parallel with one of the coils of Tag
Exciter
LF Field Settings
Setting
Current
consumption
(A)
0.06
0.06
0.09
0.13
0.08
0.09
0.11
0.17
0.25
0.33
0.42
0.50
0.52
0.58
0.68
0.85
Range (feet)
2.0 ± 0.5
3.5 ± 0.5
5.0 ± 1
6.0 ± 1.5
7.0 ± 1.5
8.0 ± 2.0
10.0 ± 2.0
11.0 ± 2.0
12.0 ± 2.5
13.0 ± 2.5
14.0 ± 2.5
15.0 ± 3.0
16.0 ± 3.5
17.0 ± 3.5
18.0 ± 4.0
19.0 ± 4.0
Setting the Proper TE Field Size
There are other many uses for the TE such as pinpointing location of the tag, room
discrimination or determining direction of travel. The TE field is adjusted in the same manner
for all applications. Testing the TE field size and adjusting for the desired detection area is
critical to proper operation of some systems. Care must be taken when adjusting the TE field
size to ensure it will detect a tag exiting through a door but not exceedingly large so that it
intrudes on adjoining rooms or areas where you do not want tags to be detected.
This section assumes that the TE is used at a door to detect a tag as it passes through the
doorway.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
To test and coarse adjust the size of the LF field
 Press the TEST key
 Holding a tag in front of you, approach the doorway with a tag at waist level, the TE will
beep when the tag enters the field
 Using the LF field adjustment instructions above, adjust the TE field size to the desired
level, ensuring the tag is detected every time, and does not detect tags in unwanted
areas.
 Holding the tag one or two inches from the floor, approach the doorway ensuring the TE
beeps when the tag passes through the doorway
 Press the TEST key to revert back to normal operation (after 10 minutes of no key
presses, TEST mode is automatically turned off
Note that the tag orientation may have an effect on the apparent size of the field. Inside the
tag is a coil antenna. When this antenna is parallel to one of the coil antennas in the TE, the
field appears to be larger than if the two coils are perpendicular. The variation in distance
varies from one foot to four feet for larger fields. Ensure that the tag is detected in all
orientations.
Test and fine adjust the size of the LF field
To perform this test and adjustment procedure, the gate must be configured in the Argus
Configuration Manager, and a keypad must be associated to the gate you are testing.
 Holding a tag in front of you, with the door closed, approach the doorway with a tag at
waist level, the keypad will beep when the tag enters the field
 Using the LF field adjustment instructions above, adjust the TE field size to the desired
level, ensuring the tag is detected every time, and does not detect tags in unwanted
areas.
 Holding the tag one or two inches from the floor, approach the doorway ensuring the
keypad beeps when the tag passes through the doorway
Setting the Tag Exciter ID
Each TE is programmed with a unique ID number which is also the serial number of the TE.
The TE transmits a beacon message to the TRC that contains tag in field information,
Firmware revision information and the serial number. The transmitted serial number is
truncated, stripping off the most significant 13 bits of the ID. Due to the most significant bits
being truncated from the ID there is a possibility of two TEs to transmit the same ID. To
resolve this issue, the least significant 4 bits of the TE may be changed in the field with the tag
exciter ID setting.
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
If two TEs are transmitting duplicate Ids the least significant 4 bits of the ID number can be
changed.
To change the transmitted ID
 Press any key to activate the user interface
 Press the SEL key twice, or until the ID LED is lit
 Press the INC key until the readout displays the desired least significant digit of the ID.
(i.e. 003A40 would be changed to 003A41 if the ID was changed to 1.
 Press the SEL key to select the least significant digit
 Press the ENT key to save the selected value in TE memory
Setting the RF Sensitivity
RF sensitivity is pre‐programmed during manufacture and this setting is not used.
Setting the Modes
There are three modes that are programmable, exciter field on/off, UHF board presence, and
end of line resistor presence (at Door In connector). The default settings are exciter field on,
UHF board present, and no end of line resistor required. These settings are not normally
adjusted.
Entering MODE setting configuration
 Press any key to activate the user interface
 Press the SEL key 3 times or until the MODE LED is lit – the display will go blank
 Press and HOLD the SEL key once more until 2 beeps are heard – the display will show
“0” when the key is released
 The TE is now in MODE setting configuration
 Press SEL to scroll between mode 0, 1 and 2
Setting the TE field on/off (MODE “0”)
Default – TE field ON
 Press select while in mode setting configuration until the readout reads “0”
 Press the INC key to toggle the field on and off , the field is on when the decimal point
after the display is lit, off when the decimal is off (the MOD LED will flash when the
setting is being adjusted)
 Press the ENT key to save the selected value in TE memory (the MOD LED will stop
flashing)
Setting the TE to activate the UHF radio (MODE “1”)
©2010 GuardRFID
Proprietary and Confidential
Tag Exciter Installation Manual
07‐00051‐110
Default – Radio activated – (Note: the AtGuard system does not have a radio board on
the TE and will ship defaulted as “radio deactivated”)
 Press select while in mode setting configuration until the readout reads “1”
 Press the INC key to toggle activate/deactivate the radio. The radio is activated when
the decimal point after the display is lit, deactivated when the decimal is off (the MOD
LED will flash when the setting is being adjusted)
 Press the ENT key to save the selected value in TE memory (the MOD LED will stop
flashing)
Setting the TE to detect EOL (end of line) Resistors (MODE “2”)
Default – EOL resistors not installed
 Press select while in mode setting configuration until the readout reads “2”
 Press the INC key to toggle detect/ignore EOL resistors. EOL resistors are detected when
the decimal point after the display is lit, ignored when the decimal is off (the MOD
LED will flash when the setting is being adjusted)
 Press the ENT key to save the selected value in TE memory (the MOD LED will stop
flashing)
Reading the Error Codes
If the Alarm LED is flashing the TE has detected an error. Error codes are read from the TE display
To read the error codes
 Press any key to activate the user interface
 Press the SEL key four times, or until the ERROR LED is lit
 Read the display:
0 – No error
1 – Case open / tamper. To simulate the cover on hold your hand at the level of the
cover, near the centre of the TE and the “1” error should stop. Since the case is open
when troubleshooting, this error is always displayed. You must simulate the cover on
to continue.
2 – Radio not detected. The radio board is faulty or not installed (Note: In the AtGuard
system there is no radio board)
3 – Input power too low. Check the input voltage; it should be 12 – 13.6 VDC
4 – Input power too high. Check the input voltage; it should be 12 – 13.6 VDC
©2010 GuardRFID
Proprietary and Confidential

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