Checkpoint Systems STRATAPX Users Manual

NOTICE TO PERSONS RECEIVING THIS DRAWING AND/OR TECHNICAL INFORMATION:
Title:
TUNING PROCEDURE
TR4022
Checkp oint Systems claims proprietary rights to t he material disclosed hereon. This drawing and/or technical information is issued in confidence for engineering information only and may not be reproduced or used to manufacture anything shown or referred to hereon without direct written permission from Checkpoint Systems to the user. This drawing and/or technical information is the property of Checkpoint Systems and is loaned for mutual assistance, to be returned when it s p urp ose has been served.
THIS DRAWING AND/OR TECHNICAL INFORMATION IS THE PROPERTY OF CHECKPOINT SYSTEMS, INC.
Revisions Revisions
Rev Description Date Engineer Rev Description Date Approved
01 ECN 03/28/2000 D. MERVA
USED ON
Doc Spec: Date: Dwn: J. IANNUZZI Date: 03/29/2000
Chk: J. HUG Date: 03/29/2000 Eng: D. MERVA Date: 03/29/2000 Appd: E. ECKSTEIN Date: 03/29/2000
Size
A
Scale: N/A
Checkpoint Systems, Inc. 2000
Page 1 of
20
TUNING PROCEDURE TR4022
TABLE OF CONTENTS
1.0 INTRODUCTION..........................................................................................................3
2.0 SYSTEM DESCRIPTION.............................................................................................3
3.0 SWITCH SETTINGS .....................................................................................................4
4.0 LED DEFINITIONS.....................................................................................................10
5.0 POTENTIOMETER ADJUSTMENT...........................................................................11
6.0 AUXILIARY CONNECTOR.......................................................................................12
7.0 SCREENS....................................................................................................................13
7.1 Frame Field Display Area...............................................................................................................14
8.0 TUNING.......................................................................................................................19
8.1 Jumper Setup ..................................................................................................................................19
8.2 Group Addressing (VERY IMPORTANT).....................................................................................19
8.3 Slaving............................................................................................................................................19
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 2
1.0 I N TRODUCTION
This document describes the procedures required to properly tune a Strata System with the TR4022 board. Many of the adjustments for the Strata are pre-tuned during the manufacturing test process therefore adjustments required in the field have been minimized.
Adjustments such as center frequency and sweep are preset for 8.2 Mhz operation. If the system is required to detect a different frequency tag the sweep range will need to be readjusted by the installer.
Once properly configured, if poor performance results, the CSE should direct their efforts toward finding the source of the interference in the environment. Several test signals are provided by the TR4022 board, which may be viewed on an oscilloscope. These signals allow the CSE to identify and measure ambient noise levels, resonances and other sources of environmental interference.
The DSP (digital signal processor) system automatically subtracts stationary resonances seen by the antennas. The system offers flexibility to adjust for these circumstances. However, the solution for environmental problems, is to determine the environmental problems and resolve them. The options for adjusting to environmental problems are performed both in the analog and digital realm by the technician. The analog solutions are reducing power on the transmit antennas (2-loop and/or 3-loop), reduce the baseband gain, and adjust the sweep. In the digital toolbox there are four user selectable filter parameters. These tools should be used only after the CSE has attempted to correct the environment.
TUNING PROCEDURE TR4022
The Strata system is powered by a +24Vdc power supply, P/N 121878. This power supply can power up to a maximum of three antennas.
2.0 SYSTEM DESCRIPTION
The Strata system is a transceiver design using both a 3-loop, 2-loop, and a 1-loop antenna design. The Strata alternates between using the 2-loop antenna and the 3-loop antenna. The 1-loop antenna is used as a shield that is tied to ground. This technique provides the system with different views of the detection field allowing the system to improve detection by minimizing the holes typically found at the crossbars of typical swept antennas.
During an antenna’s cycle, the system performs two “blasts” which are called a “bin”. There are sixteen bins per frame. A bin consists of two “noise” cycles and two blast cycles, a blast is a transmit cycle and then a receive cycle. During the noise cycle, the system is not transmitting, only receiving ambient noise. This allows the system to establish the baseline noise level of the environment for later comparison. The system then transmits or “pulses” the field and then receives or “listens” for an echo of a tag signal. This frame is repeated on the other antenna. A tag response need only be present on one of the antennas to cause an alarm. In effect the system provides the best of both worlds, a 2-loop and 3-loop design.
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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The switching between antenna loops minimizes the size of detection holes at the null points of the RF field.
3.0 SWITCH SETTINGS
Table 1 explains each of the jumpers on the TR4022 board and 4.0 explains the switches on the TR4022 board that must be configured before the system will operate. The illustrations on the next pages shows the position of the jumpers, switches, and potentiometers on the TR4022 board used during configuration. The top of the shield is held with 4 thumb turn screws. With the top of the shield removed all the switches can be set without removing the electronics from the antenna.
If for some reason the circuit board needs to be removed from the antenna housing, remove the three mounting screws from the backside of the board housing. Removing the rear cover of the antenna assembly can access them. Before completely removing the electronics package from the antenna loosen the screw near the TX1 and TX2 antenna connector and remove the spade lug. MAKE SURE WHEN REINSTALLING THE ELECTRONICS PACKAGE THAT THE SPADE LUG FROM THE SHORTED TURN IS REINSTALLED IN THE SAME PLACE.
TUNING PROCEDURE TR4022
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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TUNING PROCEDURE TR4022
Thumb
screws for
top cover
Spade lug for
shorted turn
attaches here
Slave In/Out Connections
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 5
TUNING PROCEDURE TR4022
DS8 – DS10
SW6
DS1 –DS7
SW7
Sounder
Volume
Auxiliary
Connector
R89
Baseband
Gain
Antenna
Connections
DAC TP16
SW 5 Group Address
& Q Selection
SW 4
DS11 Power
TX1 & TX2 Power Adjust
SW 1,2,3
+24 VDC
In/Out
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 6
TUNING PROCEDURE TR4022
Table 1: Jumper Definitions
Jumper Label Function
J12 Alarm Group On: Will allow all the alarm group relays to
close when any pedestal within the group alarms.
Off: Will not allow the alarm group signal to pass to the next pedestal.
J16 (NO LABEL) Engineering Jumper.
The access panel must be removed to set all of the above jumpers
Table 2: Pushbutton Switch Definitions
Switch Function
SW-1 Reset software
SW-2 Screen select.
SW-3 Screen recall.
Depressing SW2 repeatedly will allow you to toggle from Screen 1 thru Screen 7. The second pulse of the display found at the DAC test point TP16 identifies the screen being observed. See Screen 1 on page 11.
Depressing and holding SW3 will cause the display at the DAC test point TP16 to show the results of the last alarm for the screen being viewed.
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 7
TUNING PROCEDURE TR4022
Switch 4 – Bin Elimination, Filters, Transmitter setting and Alarm Cycle
Select
Switch 4-1 Switch 4-2
Switch 4-3 Switch 4-4
Switch 4-5 OFF – Software controlled transmitter
OFF OFF
Band Edge Bins Eliminated
OFF OFF
A FILTER
feature disabled
ON
OFF
High Band Bins Eliminated
ON OFF
B FILTER
OFF
ON
Low Band Bins Eliminated
OFF ON
C FILTER
ON ON
Full Band Detect No Bin Elimination
ON ON
D FILTER
ON - Software controlled transmitter feature
enabled
Switch 4-6 OFF - Short Alarm cycle ON – Long alarm Cycle
Switch 5 – System transmit address, Merchandise/Access Card Rejection
SW 5-3 SW 5-2 SW 5-1 Group
Addressing OFF OFF OFF Address 0 Strata ‘98 Compatible (200hz, sweep down) OFF OFF ON Address 1 100 Hz, jitter enabled, random sweep OFF ON OFF Address 2 100 Hz, jitter enabled, random sweep OFF ON ON Address 3 100 Hz, jitter enabled, random sweep
ON OFF OFF Address 4 100 Hz, jitter enabled, random sweep ON OFF ON Address 5 100 Hz, jitter enabled, random sweep ON ON OFF Address 6 100 Hz, jitter enabled, random sweep ON ON ON Address 7 100 Hz, jitter disabled, linear sweep down
(Reserved, Engineering mode)
Systems that are ‘slaved’ together
MUST
have the group addressing switches set to the same address. Conversely systems that are ‘unslaved’ but in close proximity must have unique addresses. Address 0 is reserved for compatibility with older (Strata ’98) Strata systems and should not be used in other installations. Address 7 is reserved for observing the analog input signal.
SW 5-6 SW 5-5 SW 5-4 ‘Q’ Band
OFF OFF OFF All Tags - No M/A Rejection OFF OFF ON 410/710 Tags (Merchandise Rejection) OFF ON OFF 310/Access Card Rejection (Merchandise Rejection)
ON OFF OFF Hard Tags (Merchandise Rejection) ON ON ON All Tags – (Merchandise Rejection)
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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Switch 6 – Master/Slave configuration
ON OFF
Switch 6-1 Master (generates and
distributes RF and Sync) The Master/Slave switch controls how the system will handle the sync and rf signals in and out. A system MUST be in slave mode to use these input signals. In Master mode these signals must be absent (refer to ‘Sync and RF indicators’ section).
ON OFF
Switch 6-2 ‘EVEN’ pedestal ‘ODD’ pedestal
The Even/Odd switch controls the transmit signal phase. This allows for a improved received signal in the weaker carries. For rf slaved systems this switch is alternately set even-odd-even-odd ….etc. For compatibility with older Strata systems ‘On’ is the same as having the Even/Odd link installed.
Switch 7 – Sweep range select
TUNING PROCEDURE TR4022
Slave (system must receive Sync signal)
The Strata 99-4022 board introduces the digital synthesis of the sweep frequencies from a DDS chip. Without any test equipment the system can be setup without tuning for specific sweep ranges.
SW 7-1 SW 7-2 Upper Band Edge Off Off No shift Off On Shift down 200 kHz On Off No shift On On Shift up 200 kHz
SW 7-3 SW 7-4 Lower Band Edge Off Off No shift Off On Shift down 200 kHz On Off No shift On On Shift up 200 kHz
SW 7-5 SW 7-6 Center Frequency Range Select Target Off Off 8.2 MHz (nominal 7.6-8.7 MHz) 8.2 tags Off On 8.6 MHz (nominal 7.8-9.4 MHz) 8.2 and 9.0 tags On Off 9.0 MHz (nominal 8.5-9.5 MHz) 9.0 tags On On 9.5 MHz (nominal 8.9-9.8MHz) 9.5 tags
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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4.0 LED DEFINITIONS
System Status Indicators
DS1 – Inhibit Indicator
This LED indicates that a condition exists that would prevent normal detection of a tag, typically excessive environmental noise. (At the end of an alarm cycle the inhibit LED will light momentarily)
DS2 – Alarm
This LED indicates the system is alarming (useful for when the sounder and lights are disconnected).
DS3 - Heartbeat
This LED indicates the system is operating normally. This LED blinks at an approximate 1 Hz rate. If the led is not blinking, it is a catastrophic failure and the board should be replaced.
DS4 – Transmitter Status
This LED indicates the ‘power’ level of the transmitter, this led is normally on. When the system detects an event above the alarm threshold it reduces the transmitter power output and extinguishes the led.
DS5, DS 6 – Spare
(During development DS5 indicates the status of the external sync on power up) (During development DS6 indicates the status of the external rf on power up)
DS7 – Q Disqualification Indicator
This LED indicates the system has detected a resonance however the ‘Q” of the resonance is either above or below the limits selected by the ‘Q’ qualification switches.
TUNING PROCEDURE TR4022
Internal and external Sync and RF indicators – DS8, DS9, and DS10
On power up or reset the system ‘reads’ the sync, rf, and switch status and configures the
board appropriately. The configuration algorithm is as follows.
M/S
Switch
(SW 6-1)
Master Absent Absent OK – self generating sync and RF
Master Absent Present ERROR Off Blink Off Master Present Absent ERROR Blink Off Off Master Present Present ERROR Off Off Blink
Slave Absent Absent ERROR Blink Blink Blink Slave Absent Present OK – External sync and Self
Slave Present Absent ERROR Blink Blink Blink Slave Present Present OK – External sync and External RF
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
External
RF
Source
External
Sync Source
Condition DS10
(Master)
Green
On Off Off
(system is a master)
Off On Off generating RF (system is a sub­master)
Off Off On (system is a slave)
Rev. 00 Page 10
DS9
(Sub-master)
yellow
DS8
(Slave)
Red
The system will not operate in any of the above ‘ERROR’ conditions. If an error condition is indicated the transmitter will be shut down and the system will not ‘pass through’ the sync pulse.
5.0 POTENTIOMETER ADJUSTMENT
The table below provides all of the adjustment pots on the TR4022 board along with their function and how to adjust each pot. The factory should set all of these pots and field adjustment should not be necessary.
Table 6: Definition of Adjustment Potentiometers
Label Function Proper Adjustment
TUNING PROCEDURE TR4022
TX1 PWR (R38) 2-loop Antenna Power
(TX1)
TX2 PWR (R149) 3-loop Antenna Power
(TX2)
BASEBAND GAIN (R89)
VOLUME (R46) Sonalert Volume Adjust to desired level (CW-increases volume)
Baseband Gain Usually set fully CW (maximum gain) Adjust for a maximum of
DO NOT ADJUST HIGHER, SET BY FACTORY
(to decrease power turn R38 clockwise)
DO NOT ADJUST HIGHER, SET BY FACTORY
(to decrease power turn R149 clockwise)
1.5V on screen 1
6.0 AUXILIARY CONNECTOR
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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TUNING PROCEDURE TR4022
LABEL PIN NUMBER FUNCTION
LT- 11 11 Negative of lights
GND 10 10 Board ground (be very careful what is connected to this pin, so as not to create
ground loops)
LT+ 9 9 Positive of lights
CNT 8 * 8 Relay normally open contact (closure upon alarm, same duration as lights)
CNT 7 * 7 Relay common contact
ALG 6 * 6 Relay normally open contact (triggered by alarm group, momentary closure)
ALG 5 * 5 Relay common contact
SPK+ 2 2 Positive of speaker
SPK- 1 1 Negative of speaker
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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7.0 SCREENS
Transmitter power
Bin 11
TUNING PROCEDURE TR4022
Screen 1
2 Loop
Screen 1
2 Loop Threshold
3 Loop Threshold
2 Loop
“ANALOG SCREEN”
Frame Field Current Activity Display Area Display Area
3 Loop
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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7.1 Frame Field Display Area
The first two horizontal divisions of ALL screen displays contains the following
information:
(each vertical division has a value of 2 units)
Pulse 1 – Scope Trigger
Pulse 2 – Screen currently displayed (Previous page shows screen 1 being displayed)
Pulse 3 – Bin Number (Displays in which Bin the last alarm occurred)
Pulse 4 – Antenna (2 loop or 3 loop)
Pulse 5 – Transmitter Power Output (pulse at top of screen shows transmitter at full
Power)
TUNING PROCEDURE TR4022
The remaining display is the
Current Activity Display Area
for that screen.
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 14
Screen 2
TUNING PROCEDURE TR4022
Screen 2
Screen 3
Similar to early Strata DAC output for the 2 loop
Screen 3
Similar to early Strata DAC output for the 3 loop
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 15
TUNING PROCEDURE TR4022
Blast 1 Artifact Plateau
Blast 2 Artifact Plateau
Blast 1 Sample to Sample Signal Plateau
Blast 1 Sample to Sample N oise Plateau
Blast 2 Sample to Sample Signal Plateau
Blast 2 Sample to Sample N oise Plateau
Blast 1 Binto BinSignalPlateau
Blast 1 Bin to Bin Noise Plateau
Blast 2 Binto BinSignalPlateau
Blast 2 Bin to Bin Noise Plateau
Blast 1 AlarmPlateau
Blast 2 AlarmPlateau
Bl ast 1 & Blast 2 AlarmThreshol ds (1 & 2 Locked)
SCREEN 2 AND SCREEN 3 (DETAILED FORMAT)
Screen 2 and Screen 3 have similar formats providing further detail on their respective 2 Loop and 3 Loop DAC signals. Using Screen 2 as an example, the individual 2 Loop DAC signals are detailed below. The same format would apply for the 3 Loop DAC signals found on Screen 3.
Screen 4 (Engineering Use)
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
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TUNING PROCEDURE TR4022
“Q” of last alarm event
Screen 5
“Q” Shape of last event
Screen 5 (Engineering Use)
Live “Q” Qualification Display
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 17
3 Loop Threshold
2 Loop Threshold
Screen 6
TUNING PROCEDURE TR4022
Screen 6
2 Loop
Bin to Bin
3 Loop
Bin to Bin
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 18
Screen 7
TUNING PROCEDURE TR4022
Screen 7
8.0 TUNING
8.1 Master / Slave Setup
The first step in the process for tuning a Strata pedestal with the TR4022 board is to configure SW 6-1 according to how the pedestal is used in conjunction with other pedestals. Configure either as a Master (ON) , or Slave (OFF). See Switch 6 – Master/Slave configuration
8.2 Group Addressing (VERY IMPORTANT)
If the pedestal is working as part of a group of pedestals and connected together by the
interpedestal cable, set the group address at SW5-1, 2, 3 the same for all the pedestals in
the group. See Table 4. If a pedestal or group of pedestals is installed within 40’ of one
another then they may have to be slaved. When slaving is required the group address for
all the pedestals must be set the same.
8.3 Slaving
Slaving can be accomplished by attaching a two wire shielded cable with a drain wire to
the OUT connector J8 terminals 4 & 5 (drain wire to terminal 3) on the last pedestal in the
group to the IN connector J7 terminals 4 & 5 (drain wire to terminal 3) on the first
pedestal of the next group.
Alarm Counter Display
NOTE: Polarity of the wires is important.
(above shows 29)
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 19
TUNING PROCEDURE TR4022
Apply 24 VDC power and check that DS11 is illuminated. DS3 should also be flashing
intermittently.
The transmitter output is preset at the factory and should not require adjustment.
Adjust the baseband gain potentiometer R89 for a noise level of less than 1.5V at Screen
1. This can be viewed by attaching an oscilloscope to the DAC test point TP16 and
selecting Screen 1 by depressing SW2. Scope setting: 1V/DIV; 200uS/DIV.
While viewing Screen 1 check the sweep setting of the transmitter for the frequency of the
tags being used. Standard retail systems are set to sweep from 7.6 – 8.7 Mhz. Using a
Grid Dip Meter placed flat on the floor approximately 1.5 to 2 feet from the antenna
check the sweep range by varying the frequency dial on the meter. The following
illustrations will give you an idea of what the induced signal from the Dip Meter will look
like at Screen 1.
8.7 Mhz 8.2 Mhz 7.6 Mhz
Set the detection parameters at SW4-3 & 4 to OFF/OFF. This is the same as the ‘C’ filter
on earlier Strata. If more filtering is required because of environmental influences see
Table 3.
Set SW5-4, 5, 6 for the type of tags being used. See Table 4. All OFF has no ‘Q’
qualification and thereby will not defeat alarms caused by merchandise.
Set the volume of the Sonalert by adjusting potentiometer R46.
No other adjustments are required. Test the system with several of the customers’ tags to
insure that the system is detecting properly. The sensitivity of the system may vary due to
environmental influences and the selection of the filtering set by SW4-3 & 4.
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page 20
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