to USER MANUAL for AVR8000
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1. Interrupt Commands 12 e ID Command 12 APPENDIX A CONNECTION DIAGRAM 13 B ELECTRICAL SPECIFICATIONS 14 ONTRAK CONTROL SYSTEMS INC 2 14 www ontrak net READ ME FIRST Thank you for purchasing this ADR8000 AVR8000 8 1 Video Multiplexer Switch The AVR8000 is a versatile video switch with three modes of operation including Mode 1 Motion Input Manual Switching Power On Default Mode 2 RS232 Controlled Switching Mode 3 Timed Switching This manual will provide guidance for using the switch in the various modes Additional applications and programming examples are available on our web page at http www ontrak net FEATURES Low Cost 8 Buffered Inputs Buffered Output Three wire RS232 interface 75 Ohm Standard or 50 Ohm Inputs Ultra low 10mV P P Switching Transient Integrated ESD Protection 8 Contact inputs for motion detection or external switch Versatile command set via RS232 3 Modes of Operation Manual RS232 Timed 94V 0 Enclosure with rubber mounting feet Operates on standard 9VDC wall adaptor or 7 15VDC ONTRAK CONTROL SYSTEMS INC 3 14 www ontrak net 1a THE AVR8000 RS232 INTERFACE The AVR8000 communicates via a standard RS232 port utilizing a simple three wire interface The only signals used are received data RC transmitted data TX and ground GND Most RS232 ports use hardware handshaking i e DTR DSR CTS RTS signals to control the flow of data on the port For this2. operating modes Each mode is explained along with suggested applications in the following sections Manual Select Switch Motion Detectors up to 8 1 1 v EN i ay Frame Grabber or Video Capture Computer Ej OR Video Monitor OR VCR J1 RS232 J2 Contact Input ONTRAK AVR8000 CONTROL SYSTEMS 5232 1 Video Multiplexeri switch DATA ACQUISITION AND CONTROL 5 Ohm input 75 Ohm Output J3 DC OUTPUT DC Power Input 7 15VDC 50mA enter Negatve SN www ontrak net 8 1 Multiplexer 0 4 2 3 4 INPUTS H eS Camera 0 Camera 1 Camera 2 Camera 3 Camera 4 Camera 5 Camera 6 Camera 7 5 6 ra Figure 3A General Connection Options a Mode 1 Motion Input Manual Switching Power On Default When configured in MODE 1 switching of the video input channels is determined by the state of the contact inputs on connector J2 Connection of a host computer is not required The eight contact inputs on connector J2 are collectively referred to as PORT A Individually each input is identified as PAO to PA7 and is associated with a specific video input channel as illustrated in Figure 3B ONTRAK CONTROL SYSTEMS INC 6 14 www ontrak net PORT A Line Selected Video Channel J2 DB9S Pin No PAO Channel 0 Highest Priority 7 PA1 Channel 1 8 PA4 Channel 4 4 PA5 Channel 5 3 Chann
3. AVR8000 RS232 8 1 Video Mulitiplexer Switch USER MANUAL V 3 0 ONTRAK CONTROL SYSTEMS INC 764 Notre Dame Avenue Unit 1 Sudbury Ontario CANADA P3A 2T2 705 671 2652 VOICE 705 671 6127 FAX www ontrak net WEB Ontrak Control Systems Inc reserves the right to change product specifications to improve the product Although every attempt has been made to insure accuracy of information contained in this manual Ontrak Control Systems Inc assumes no liability for inadvertent errors Warranty This AVR8000 is warranted from defects in workmanship and materials for a period of 90 days Liability for defects is limited to the purchase price of the product This warranty shall not apply to defects resulting from improper modifications or use outside published specifications Hyperterminal and Windows are trademarks of Microsoft Corporation APPLE MACINTOSH and MAC are trademarks of Apple Computer Inc PC XT AT PS 2 are trademarks of International Business Machines Inc COPYRIGHT 2001 ONTRAK CONTROL SYSTEMS INC TABLE OF CONTENTS READ ME FIRST 3 1 Communication Options a The AVR8000 RS232 Interface 4 2 Providing Power to the AVR8000 5 3 AVR8000 Modes of Operation 6 a Mode 1 Motion Input Manual Switching 5 b Mode 2 RS232 Controlled Switching 8 c Mode 3 Timed Switching 8 4 AVR8000 Commands a Channel Select Commands 10 b Mode Select Commands 10 c Contact Input PORT A Commands 11 d
4. Multiplexer 3 4 INPUTS J1 RS232 J2 Contact Input J3 DC DB9 Female Pin1 Connected to Pins 6 4 Pin 1 PA7 Sleeve 7 15VDC Pin2 Transmit Data Pin 2 PAG Center Negative Pin3 Receive Data Pin 3 PAS Pin4 Connected to Pins 1 6 Pin 4 PA4 Pin5 Ground Pin 5 PA3 Pin6 Connected to Pins 1 4 Pin 6 Common Ground Pin7 Connected to Pin 8 Pin 7 PAO Pin8 Connected to PIN 7 Pin 8 PA1 Pin9 Make no Connection Pin 9 PA2 oOo ONTRAK CONTROL SYSTEMS INC 13 14 www ontrak net APPENDIX B ELECTRICAL SPECIFICATIONS Input Impedance 75 Ohms 50 Ohm Available Input Level 1V P P Maximum Input Voltage Range 2V P P Connector Type RCA Video Output Output Impedance 75 Ohm 50 Ohm Available Output Level 1V P P into 75 Ohms Switch Transient 10mV Maximum Bandwidth 3dB 70 Mhz Connector Type J2 Contact Inputs 8 Input Type Dry Contact or TTL Connector type DB9 Female J1 RS232 Port Configuration 9600 8 bit words no Parity 1 Stop bit Connector Type DB9 Female J3 DC Power Input Input Voltage Range 7 15VDC Input Current 30mA Maximum ONTRAK CONTROL SYSTEMS INC 14 14 www ontrak net
5. be masked disabled or unmasked enabled using the interrupt mask command For example when interrupts are enabled 00 interrupt on PAO Channel 0 Contact Input 01 interrupt on PA1 Channel 1 Contact Input 05 interrupt on PA5 Channel 5 Contact Input 03 interrupt on PA3 Channel 3 Contact Input The interrupt commands include IE Enables all un masked interrupts ID Disables all interrupts IS Returns status of interrupts 1 if enabled 0 if disabled SMKXxxxxxxx Loads interrupt mask data x 1 to mask bit 0 to unmask bit The order of data is CH7 CHO All eight bits must be specified Example SMK11000001 lt cr gt Masks CH7 CH6 CHO unmasks CH5 CH4 CH3 CH2 CH1 NOTES TO INTERRUPT OPERATION 1 Interrupts are disabled on power up 2 All interrupts are un masked on power up 3 The contact input must be closed for at least 10ms to ensure detection 4 It is not recommended to generate more than 10 interrupts per second per channel as interrupt data may be lost e ID COMMAND IDN Returns four digit product identifier code 8000 may be omitted ONTRAK CONTROL SYSTEMS INC 12 14 www ontrak net APPENDIX A CONNECTION DIAGRAM J1 RS232 J2 Contact Input J3 DC OUTPUT ONTRAK AVR8000 RS232 8 1 Video Multiplexer Switch CONTROL SYSTEMS 75 Ohm Input 75 Ohm Output DATA ACQUISITION AND CONTROL DC Power Input 7 15VDC 50mA Center Negative SN www ontrak net 8 1
6. d Higher Priority video input channels and less important areas connected to the higher numbered Low Priority video input video channels Another preferred method of using motion detector inputs is MODE 2 with interrupts enabled See below b Mode 2 RS232 Controlled Switching MODE 2 allows switching of the video inputs based on commands sent by a host computer connected to the RS232 port J1 This allows the host to select which input is routed and for how long using simple ASCII commands sent via the RS232 port Details of these commands are given in section 4 of this manual Note For tutorials on sending ASCII commands via RS232 in BASIC Visual Basic Turbo C Visual C TestPoint Labview and other languages see our web page at http Awww ontrak net In the programming section One example of using MODE 2 is to configure the host to switch the desired channels to the output in one second steps and use a Frame Grabber to capture a complete frame of video for storage Another application example is to connect motion detector outputs to the contact inputs and enable interrupts from the AVR8000 The interrupts will send codes to the host computer when motion is detected telling the host which zone has motion The host computer can then switch the related camera to a video monitor VCR or video capture input c Mode 3 Timed Switching Mode 3 features a timed switching option where the inputs are switched at intervals set by the hos
7. el 7 Lowest Priority Figure 3B J2 Pin Out Table A manual switch can be used to select which video channel is routed to the output by wiring the switch to connect the appropriate lines to the common ground An example is shown in Figure 3C using an eight position select switch To J2 on AVR8000 DB9P male Swi Channel Select Figure 3B Manual Operation using External 8 Position Switch Note 1 If more than one input is connected to ground Active at the same time the input with highest priority will be the selected channel The highest priority is given to PAO and the lowest priority is given to PA7 ONTRAK CONTROL SYSTEMS INC 7 14 www ontrak net Contact inputs from motion detectors can be used in place of the manual switch by connecting the dry contact inputs between the common ground and the corresponding input line This allows the video signal to be switched based on motion detection Caution should be exercised in use of this mode as the priority of the inputs can cause some motion to go undetected This happens when motion occurs in two zones ex Channel 0 and Channel 5 at the same time While motion is detected on Channel 0 its signal will be routed to the output and motion on Channel 5 will not be recorded unless the contact on Channel 0 opens This is because of the higher priority given to Channel 0 than Channel 5 If this method is to be used high security areas should be connected to the lower numbere
8. here are pull up resistors connected to each input line allowing the use of dry contact inputs or TTL type signals The normal Inactive state for an input is a logic 1 HIGH If a dry contact is connected between an input and ground and the contact closes the input state will be a logic O LOW For example if PORT A is read with nothing connected a value of 255 will be returned indicated that all inputs are HIGH or in the open state The commands used to access the inputs are PA Returns value of PORT A in decimal format 000 255 example PA lt CR gt 127 PA7 is LOW contact input closed PA6 PAO are HIGH Contact inputs open RPA Returns current value of PORT A in binary format Order is PA7 PAO example RPA lt CR gt 11101110 PA7 PA6 PAS PA3 PA2 PA1 are HIGH PA4 and PAO are LOW RPAn Returns current value of input line specified by n in PORTA example RPA4 lt CR gt 1 PA4 is HIGH ONTRAK CONTROL SYSTEMS INC 11 14 www ontrak net d INTERRUPT COMMANDS The AVR8000 features 8 contact inputs that can be used to generate interrupts when a contact closure is detected When enabled the interrupt will cause a 2 digit code to be sent to the host The two digit code has a leading zero followed by a number 0 7 representing the input that generated the interrupt The host can then use this data to select which input is routed to the video output of the AVR8000 Individual input lines may
9. l is routed to the video output Additionally the dwell time used for MODE3 Timed Switching can be set to any value from 1 to 255 seconds MVc Selects video channel to be routed c 0 9 example MV3 lt CR gt Video input 3 is routed to video output Note If c 8 or 9 video output is disabled PV Returns present video channel example PV lt CR gt 6 Channel 6 is presently routed to video output Note If a value of 9 is returned video output is disabled DTddd Sets dwell time in seconds ddd 001 to 255 example DT10 lt CR gt Dwell time is set to ten seconds DR Returns dwell time in seconds example DR lt CR gt 25 Channel dwell time is 25 seconds b MODE SELECT COMMANDS The mode select commands allow the mode of the AVR8000 to be set and read back at any time M1 Sets current MODE to 1 Motion Input Manual Switching M2 Sets current MODE to 2 RS232 Controlled Switching M3 Sets current MODE to 3 Timed Switching MR Returns current mode 1 2 or 3 ONTRAK CONTROL SYSTEMS INC 10 14 www ontrak net c CONTACT INPUT PORT A COMMANDS The AVR8000 features 8 contact inputs on J2 designated as PORT A The contact input status can be read individually or as a complete byte The port configuration is PORT A Line Selected Video Channel J2 DB9S Pin No Channel 0 ees ae oo 1 FR paz chama2 Ol 2 Channel 3 Channel 4 FR UE 5 eas chama 6 Channel 7 GROUND T
10. reason the cable required to connect to the ADR867 should have jumpers on the Female DB9 end to satisfy these handshaking requirements IBM PC or compatible computers may be used as a host computer with the supplied cable The supplied cable has the following connections AVR8000 PC DB9P male DB9S female RC 3 RED 3 TX TX 2 WHITE 2 RC GND 5 _ BLACK _ _ 5 GND 7 RTS 8 CTS 1 DCD 6 DSR 4 DTR Figure 1 Supplied Cable Wiring Diagram If the host computer has a male DB25 connector a DB25 to DB9 adapter is required to use the supplied cable This may be purchased at most computer dealers ONTRAK CONTROL SYSTEMS INC 4 14 www ontrak net 2 PROVIDING POWER TO THE AVR8000 The AVR8000 has an on board 5 volt regulator allowing the use of a 9 volt wall adaptor to power the internal circuits The adaptor should be able to provide a minimum of 100mA MODE 68 950 1 The adaptor must have a standard 2 1mm center negative coaxial connector ONTRAK CONTROL SYSTEMS INC 5 14 www ontrak net 3 AVR8000 Modes of Operation There are many different methods of utilizing the AVR8000 Up to eight cameras can be connected to the video inputs and the video output can be fed to a frame grabber Computer video monitor or VCR Switching can be controlled by motion detector inputs a manual switch an internal timer or by commands issued by a host computer The AVR8000 has three fundamental
11. t computer from 1 to 255 seconds in duration Inputs can be masked to allow switching only of the inputs with video connections The timed switching commands are listed in section 4 of this manual ONTRAK CONTROL SYSTEMS INC 8 14 www ontrak net AVR8000 Command Quick Reference CHANNEL SELECT COMMANDS c 0to9 MVc Select video channel c 0 to 9 Note If c 8 or 9 output is disabled PV Returns current video channel 0 7 or 9 if disabled DTddd Sets dwell time in seconds ddd 001 to 255 DR Returns current dwell time 000 255 MODE SELECT COMMANDS M1 Configures AVR8000 for MODE 1 operation Default M2 Configures AVR8000 for MODE 2 operation M3 Configures AVR8000 for MODE 3 operation MR Returns current MODE 1 2 or 3 INTERRUPT COMMANDS IE Enables all un masked interrupts ID Disables all interrupts IS Returns status of interrupts 1 if enabled 0 if disabled SMKxxxxxxxx Loads interrupt mask data x 0 unmasked or 1 masked MKR Returns current mask data CONTACT INPUT PORT A COMMANDS PA Returns current value of PORT A in decimal format 000 255 RPA Returns current value of PORT A in binary format RPAn Returns value of input line 0 or 1 specified by n 0 7 ID COMMAND IDN Returns 4 digit ID number 8000 ONTRAK CONTROL SYSTEMS INC 9 14 www ontrak net 4 AVR8000 COMMANDS a CHANNEL SELECT COMMANDS The channel select commands allow the RS232 host to select which input channe
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