Title:
TUNING PROCEDURE TR4022 Description Revisions Date ECN 03/28/2000 Rev 01 Engineer D. MERVA NOTICE TO PERSONS RECEIVING THIS DRAWING AND/OR TECHNICAL INFORMATION:
Checkpoint Systems claims proprietary rights to the 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 its purpose has been served. THIS DRAWING AND/OR TECHNICAL INFORMATION IS THE PROPERTY OF CHECKPOINT SYSTEMS, INC. Revisions Rev Description Date Approved Doc Spec:
Dwn: J. IANNUZZI Chk: J. HUG Eng: D. MERVA Date:
Date: 03/29/2000 Date: 03/29/2000 Date: 03/29/2000 Size A USED ON Appd: E. ECKSTEIN Date: 03/29/2000 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 ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 2 TUNING PROCEDURE TR4022 1.0 INTRODUCTION 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. 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 antennas 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. ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 3 TUNING PROCEDURE TR4022 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. ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 4 Thumb screws for top cover TUNING PROCEDURE TR4022 Spade lug for shorted turn attaches here Slave In/Out Connections ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 5 TUNING PROCEDURE TR4022 DS1 DS7 Auxiliary Connector DS8 DS10 SW6 SW7 Sounder Volume R89 Baseband Gain Antenna Connections SW 5 Group Address
& Q Selection SW 4 DAC TP16 SW 1,2,3
+24 VDC In/Out DS11 Power TX1 & TX2 Power Adjust ____________________________________________________________________________________________________________________________ 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. ____________________________________________________________________________________________________________________________ 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 OFF OFF Band Edge Bins Eliminated OFF OFF A FILTER ON OFF High Band Bins Eliminated ON OFF B FILTER Switch 4-5 OFF Software controlled transmitter feature disabled Switch 4-6 OFF - Short Alarm cycle ON ON Full Band Detect No Bin Elimination ON ON D FILTER OFF ON Low Band Bins Eliminated OFF ON C FILTER ON - Software controlled transmitter feature enabled ON Long alarm Cycle Switch 5 System transmit address, Merchandise/Access Card Rejection SW 5-3 SW 5-2 SW 5-1 Group OFF OFF OFF OFF ON ON ON ON OFF OFF ON ON OFF OFF ON ON Addressing Address 0 Address 1 Address 2 Address 3 Address 4 Address 5 Address 6 Address 7 OFF ON OFF ON OFF ON OFF ON Strata 98 Compatible (200hz, sweep down) 100 Hz, jitter enabled, random sweep 100 Hz, jitter enabled, random sweep 100 Hz, jitter enabled, random sweep 100 Hz, jitter enabled, random sweep 100 Hz, jitter enabled, random sweep 100 Hz, jitter enabled, random sweep 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 OFF OFF OFF ON ON OFF OFF ON OFF ON OFF ON OFF OFF ON Q Band All Tags - No M/A Rejection 410/710 Tags (Merchandise Rejection) 310/Access Card Rejection (Merchandise Rejection) Hard Tags (Merchandise Rejection) All Tags (Merchandise Rejection) ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 8 Switch 6 Master/Slave configuration TUNING PROCEDURE TR4022 Switch 6-1 ON Master (generates and distributes RF and Sync) OFF Slave (system must receive Sync signal) 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). Switch 6-2 ON EVEN pedestal OFF 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 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 Off Off On On SW 7-3 Off Off On On SW 7-5 Off Off On On SW 7-2 Upper Band Edge Off On Off On No shift Shift down 200 kHz No shift Shift up 200 kHz SW 7-4 Off On Off On SW 7-6 Off On Off On Lower Band Edge No shift Shift down 200 kHz No shift Shift up 200 kHz Center Frequency Range Select 8.2 MHz (nominal 7.6-8.7 MHz) 8.6 MHz (nominal 7.8-9.4 MHz) 9.0 MHz (nominal 8.5-9.5 MHz) 9.5 MHz (nominal 8.9-9.8MHz) Target 8.2 tags 8.2 and 9.0 tags 9.0 tags 9.5 tags ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 9 TUNING PROCEDURE TR4022 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. 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 Master Master Master Slave Slave External RF Source Absent Absent Present Present Absent Absent Absent Present Absent Present Absent Present Slave Slave Present Present Absent Present External Sync Source Condition DS10
(Master) Green OK self generating sync and RF
(system is a master) ERROR ERROR ERROR ERROR OK External sync and Self generating RF (system is a sub-
master) ERROR OK External sync and External RF
(system is a slave) On Off Blink Off Blink Off Blink Off DS9 DS8
(Sub-master)
(Slave) yellow Off Blink Off Off Blink On Blink Off Red Off Off Off Blink Blink Off Blink On ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 10 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. TUNING PROCEDURE TR4022 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 TX1 PWR (R38) 2-loop Antenna Power
(TX1) TX2 PWR (R149) 3-loop Antenna Power
(TX2) 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) BASEBAND GAIN
(R89) Baseband Gain Usually set fully CW (maximum gain) Adjust for a maximum of 1.5V on screen 1 VOLUME (R46) Sonalert Volume Adjust to desired level (CW-increases volume) 6.0 AUXILIARY CONNECTOR ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 11 PIN NUMBER FUNCTION TUNING PROCEDURE TR4022 11 10 9 8 7 6 5 2 1 Negative of lights Board ground (be very careful what is connected to this pin, so as not to create ground loops) Positive of lights Relay normally open contact (closure upon alarm, same duration as lights) Relay common contact Relay normally open contact (triggered by alarm group, momentary closure) Relay common contact Positive of speaker Negative of speaker LABEL LT- 11 GND 10 LT+ 9 CNT 8 *
CNT 7 *
ALG 6 *
ALG 5 *
SPK+ 2 SPK- 1 ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 12 TUNING PROCEDURE TR4022 7.0 SCREENS Screen 1 Transmitter power Bin 11 2 Loop Screen 1 2 Loop Threshold 3 Loop Threshold 2 Loop 3 Loop ANALOG SCREEN Frame Field Display Area Current Activity Display Area ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 13 7.1 Frame Field Display Area TUNING PROCEDURE TR4022 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) The remaining display is the Current Activity Display Area for that screen. ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 14 TUNING PROCEDURE TR4022 Screen 2 Similar to early Strata DAC output for the 2 loop Screen 3 Screen 2 Screen 3 Similar to early Strata DAC output for the 3 loop ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 15 TUNING PROCEDURE TR4022 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. u a e t a l P t c a f i t r A 1 t s a l B u a e t a l P t c a f i t r A 2 t s a l B u a e t a l P m r a l A 1 t s a l B u a e t a l P m r a l A 2 t s a l B u a e t a l P l a n g i S e l p m a S o t e l p m a S 1 t s a l B u a e t a l P e s i o N e l p m a S o t e l p m a S 1 t s a l B u a e t a l P l a n g i S e l p m a S o t e l p m a S 2 t s a l B u a e t a l P e s i o N e l p m a S o t e l p m a S 2 t s a l B u a e t a l P l a n g i S n i B o t n i B 1 t s a l B u a e t a l P e s i o N n i B o t n i B 1 t s a l B u a e t a l P l a n g i S n i B o t n i B 2 t s a l B u a e t a l P e s i o N n i B o t n i B 2 t s a l B Screen 4 (Engineering Use)
) d e k c o L 2
&
1
(
s d l o h s e r h T m r a l A 2 t s a l B
&
1 t s a l B ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 16 TUNING PROCEDURE TR4022 Q of last alarm event Q Shape of last event Screen 5 (Engineering Use) Screen 5 Live Q Qualification Display ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 17 TUNING PROCEDURE TR4022 Screen 6 3 Loop Threshold 2 Loop Threshold Screen 6 2 Loop Bin to Bin 3 Loop Bin to Bin ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 18 TUNING PROCEDURE TR4022 Screen 7 Screen 7 Alarm Counter Display (above shows 29) 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. NOTE: Polarity of the wires is important. ____________________________________________________________________________________________________________________________ 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. ____________________________________________________________________________________________________________________________ CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY. Rev. 00 Page 20