Trango Systems VTX5900 12 Channel Video/Audio/Alarm TX User Manual Draft

Trango Systems Inc 12 Channel Video/Audio/Alarm TX Draft

Draft User Manual

FALCON PLUS SERIES5.8 GHz Wireless Video/Audio/Alarm/Data Transmission SystemInstallation and Operating Instructions
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 11• Verify proper operation of camera and monitor/event recorder using coaxial cable priorto installing wireless link.2• Install transmitter (VTX5900) and receiver (VRX5900) units  in desired location to a steelpole per installation drawing.  The pole must be  securely mounted so that it does not move,and may be from 1.5” to 3” in diameter.3• Install antennas above the enclosures.WARNINGWARNINGWARNINGWARNINGUSE EXTREME CARE WHEN INSTALLING ANTENNAS NEAR POWER LINES.4• Slide heatshrink over antenna cable. Tighten antenna cable to receiver and transmitter.Heat up the heatshrink until it contracts around the connector junction.5• Connect video, audio, power, alarm, PC interface cables as needed to units throughflanges.  Tighten flanges to allow small air gap at bottom of enclosure.IMPORTANT NOTE:Power adapter must be kept dry.6• Verify that LEDs are lit up and transmitter and receiver are on same channel.7• Tighten lid of enclosure down.8• To help protect against potential lightning damage, use a lightning surge arrestor in linewith all cabling entering a structure and at the antenna input.CAUTIONCAUTIONCAUTIONCAUTIONDO NOT APPLY POWER TO THE TRANSMITTER UNLESS THE ANTENNA ISCONNECTED. PERMANENT DAMAGE MAY RESULT.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.2Congratulations on choosing Trango Systems, Inc. to fulfill your wireless video needs.  Unpackyour system carefully.  If any items are missing, notify your sales representative.  If an itemappears to be damaged from shipment, replace it in its packing material and notify the shipper.Save the packaging for further storage of the equipment.Service:If the unit ever needs repair service, contact your Trango Systems, Inc. distributor forreturn authorization and shipping instructions.FCC Information:Note: This equipment has been tested and found to comply with the limits for a Class Bdigital device, pursuant to Part 15 of the FCC Rules.  These limits are designed toprovide reasonable protection against harmful interference in a residential installation.This equipment generates, uses, and can radiate radio frequency energy, and if notinstalled and used in accordance with these instructions, may cause harmful interferenceto radio communications.  However, there is no guarantee that interference will notoccur in a particular installation.  If this equipment does cause harmful interference toradio or television reception, which can be determined by turning the equipment off andon, the user is encouraged to correct the interference by one of more of the followingmeasures:1) Reorient the receiving antenna;2) Increase the separation between the affected equipment and the receiver;3) Connect the affected equipment to an outlet on a different circuit from that     which the receiver is connected to;4) Consult the dealer and/or experienced radio/TV technician for help.VTX2500: # NCYVTX5900CANADA:IMPORTANT NOTE:Intentional or unintentional changes or modifications not expressly approved by theparty responsible for compliance must not be made.  Any such modifications could voidthe user’s authority to operate the equipment and will void the manufacturer’swarranty.System Description:The FALCON PLUS Wireless Video System is a professional quality system designedfor sending composite NTSC or PAL video, audio, and alarm signals using 5.8 GHzwireless technology.  The typical FALCON PLUS system consists of a VTX5900transmitter and antenna, VRX5900 Receiver and antenna, and power adapters.  Thesystem is ideal for permanent or temporary video links due to its portable nature and easyinstallation.  It is not designed for operation while in motion.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 3• FIGURE 1a •Figure 1a shows the most common connection diagram for setting up a wireless videolink using the FALCON PLUS.  Audio and power connections are not shown.FIGURE 1b
Copyright © 1999 Trango Systems, Inc.  All rights reserved.4FIGURE 1cFigures 1b and 1c show the orientation of the antennas and mounting of the enclosures.Since the antennas are directional, they must be aligned towards each other as shown.NOTE: Make sure that your camera and monitor/recorder work properly hardwiredbefore attempting to install the wireless link.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 5Installation:The FALCON PLUS system is factory-configured for operation on channel 1 with rightand left audio operational.To obtain the best picture quality and transmission distance, the following rules of thumbshould be followed:1) Mount the transmitter and receiver antennas above human and mechanical traffic,the higher the better.  A 10 foot 2 3/8” diameter steel mast on top of a building istypical.  Make sure that the mast is well grounded to earth ground with an 8 AWG orlarger wire.  For maximum range, the transmit and receive antennas must be 15 to 20feet above all obstacles in the line of sight.2) Keep the transmission path as open as possible.  Objects such as walls andmetallic objects near the transmission path reflect signals and may reduce thetransmission distance.3) Do not add additional lengths of cable to connect the receiver to the antenna assignificant losses in signal and reduced transmission range will occur.4) Keep the cable connecting the antenna to the receiver as short as possible.The VTX5900 transmitter and VRX5900 receiver units come pre-mounted in a NEMA-4X rated aluminum enclosure which allows mounting of the unit outdoors.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.6Figure 2 shows the interior of the VTX5900 transmitter and the functions of each control andinput/output.  Each control is described in greater detail below.  This card is encased in a NEMA-4X rated aluminum/powdercoat enclosure.  Do not remove the card from the enclosure.IMPORTANT NOTE: The transmitter uses a non-standard jack to connect tothe transmitter antenna. Any modification to this jack may void the user’sauthority to operate the equipment and will void the manufacturer’s warranty.CAUTIONCAUTIONCAUTIONCAUTIONDO NOT APPLY POWER TO THE TRANSMITTER WITHOUT THEANTENNA  SECURELY ATTACHED.    DO NOT APPLY VOLTAGE TOTHE ALARM PINS.  DAMAGE TO THE UNIT MAY RESULT.1. Power2. Alarm 1/2 inputs3. Right audio input4. Left audio input5. Stereo/Alarm switch6. Data7. Video input8. Toggle/Standby9. Status LED10. Channel LEDs11. Antenna connector12. Header for use with optionalLC-485/422• FIGURE 2•12.Use with drycontact closuresonly.9.8.5. 2.10.1.7.6.4.3.11.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 7VTX5900 Transmitter Inputs & Controls:1. POWER INPUTAccepts a 6-12 Vdc power source such as the standard 7 Vdc adapter (Trango partnumber PT07800-1), or an optional battery.  The nominal current draw is 200milliamperes.  If using an adapter from a third party, use a well-regulated 300 mAminimum output supply.   Do not use the PT07800-1 to power a camera or videodistortion may occur.2. ALARM INPUTSThese inputs are used to send alarm signals to the receiver.  They sense an open orclosed state and reflect that state to the receiver whenever it changes.  The alarminputs operate independently of each other.  The transmitter is capable of sendingeither alarms or stereo audio, selectable via the Stereo/Alarm switch.3/4. RIGHT & LEFT AUDIO INPUTSDesigned to mate to standard RCA connectors, each input accepts 1 Vpp audio inputand is terminated with 600Ω unbalanced configuration.  It is designed to interface to“lineout” audio sources.  A preamplifier must be used to connect a microphone to thisinput.5. STEREO/ALARM SWITCHWhen this switch is in the “R Audio On” position, stereo audio transmission isenabled.  This permits the transmission of stereo audio with no data or alarms.  Whenit is in the “Alm/Data Mode On” position, R audio is disabled.  In its place, eitheralarms or user data (Data Pass-Through mode) are transmitted.6. DATA INTERFACEWhen connected to a personal computer via the optional CBLDAT-1 interface cable,this input accepts serial commands that control settings in the transmitters notavailable on the front panel.  See the TrangoLink software section and program helpfor more information.  This is also the input for the RS-232 user data to be sent inData Pass-Through mode.7. VIDEO INPUTDesigned to mate to a standard BNC male connector, this input accepts 1Vpp videoin both NTSC and PAL formats.  This input is terminated with 75Ω.  RCA-BNCadapters are available for use with some cameras and VCRs.8. TOGGLE/STANDBYDepressing this switch momentarily changes the transmitter channel.  Remember tochange the receiver channel as well, since it is not automatically changed when thetransmitter channel is changed.  Holding the button down for 2 seconds places thetransmitter in Standby mode.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.89/10. STATUS/CHANNEL LEDsThese LEDs display the transmitter status and current transmitter channel. There are12 channels to choose from.CAUTIONCAUTIONCAUTIONCAUTIONDO NOT APPLY EXTERNAL VOLTAGES TO THE ALARM INPUTS ASPERMANENT DAMAGE TO THE UNIT MAY RESULT.  USE ONLY DRYCONTACTS WITH THESE INPUTS.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 9VTX5900 Transmitter Operation:Changing Channels:To change channels, simply depress the Toggle/Standby switch momentarily until theLED(s) for the desired channel is lit up.  Remember to change the receiver channel aswell, since it is not automatically changed when the transmitter channel is changed.As a rule of thumb, the first 6 systems operating along the same transmission pathshould be set to use even channels ( 2,4,6,8,10,12).  If more than 6 systems arerequired along the same transmission path, use opposite polarization antennas andthen set the units to operate on the odd channels (1,3,5,7,9,11).  Contact Trango TechSupport for additional help on setting the correct configuration for your application.Standby Mode -- Secure Standby Mode:In this mode of operation the transmitter:1. stops transmitting over the air completely by shutting down the majority ofits circuitry to save power, and2. waits to be returned to Normal mode by one of the following:• a change in either Alarm input,• the Toggle/Standby switch, or• the TrangoLink software.To enter Secure Standby mode, press and hold the Toggle/Standby switch for 2seconds or use the TrangoLink software (See the TrangoLink section of this manualfor more information).  The Status LED will blink for about 1 minute to allow theoperator to leave the area.  During this time the alarms will not be sent to thereceiver.  After 1 minute, the alarm inputs will be active and the status LED will thenblink to indicate that the unit is in Secure Standby mode.To exit Secure Standby mode, momentarily press the Toggle/Standby switch or usethe TrangoLink software.  After exiting Secure Standby mode, the active channelLED will be on solid to indicate that the transmitter is now continuously  transmittingagain.Standby Mode -- Power Save Standby Mode:In Power Save Standby mode, the transmitter will awaken (enter Normal mode) for auser-selectable amount of time if an alarm is received over the Alarm 1 input.  After thistime has expired, the transmitter will reenter Standby mode.  The amount of time afterwhich the transmitter will reenter Standby mode can be set to any value between 1 and255 minutes using the TrangoLink software.  If zero is entered, the transmitter will be inSecure Standby mode, and will not reenter Standby mode after awakening.  Moreinformation can be found in the TrangoLink section of this manual.When the transmitter has been placed in Power Save Standby mode, the Alarm 1 input istreated as normally-closed.  An open condition on this input will awaken the transmitterfor the preset amount of time.  The state of the Alarm 2 input does not affect thetransmitter in Power Save Standby mode.In Power Save Standby mode the transmitter:
Copyright © 1999 Trango Systems, Inc.  All rights reserved.101. stops transmitting over the air by shutting down the majority of its circuitryto save power,2. periodically and momentarily powers up and transmits over the air, and3. waits to be returned to Normal mode by one of the following:• an open condition on the Alarm 1 input,• the Toggle/Standby switch, or• the TrangoLink software.To exit Power Save Standby mode, momentarily press the Toggle/Standby switch, or usethe TrangoLink software.  After exiting Power Save Standby mode, the active channelLED will be on solid to indicate that the transmitter is now continuously  transmittingagain.  If the Power Save Timer is still enabled, the radio will go back to Power SaveStandby when it times out again.Data Pass-Through Mode:The transmitter and receiver can be used to pass data at rates from 1200 to 9600 bps.(For optimum data transmission without losses, both the transmitter and receivershould be configured to pass or accept data at the same rate.  The data rate and parityare configured using the TrangoLink software.)  To enter Data Pass-Through mode,the illustrated switch should be placed in “Alm/Data Mode On.”  Then, from theTrangoLink software, select “Pass-Through Mode.”  Make sure both the VTX5900and the VRX5900 have been configured for Data Pass-Through mode.  The RightAudio channel will be disabled in this mode while the Left Audio channel can stilltransmit monaural audio.  Alarms and Link Verification cannot be transmitted whenin Data Pass-Through mode.  Do not use CBLDAT-1 to send or receive data since itcontains extra wires not used for normal data transmission.Figure 3 displays the pinout diagram to connect to the RJ11 Data connector for RS-232 data pass-through.To pass simplex (one way) RS-485 or RS-422 format serial data, use the LC485/422available from your dealer.  If using the LC485/422 converter, the data connectormust not be connected to any cabling.}PIN NUMBERDATA connectorRJ11 - 6 positionVIDEO  connectorRIGHT and LEFTaudio connectors12345 6PIN NUMBER DESCRIPTION1 Reserved -- DO NOT USE2 RS-232 Serial Data In to Radio3 GND4 Reserved -- DO NOT USE5 RS-232 Serial Data Out to PC6 Reserved -- DO NOT USE • FIGURE 3 •
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 11Low Battery:If the input voltage drops below 6V, the status LED will blink twice per second.  Alow battery indication is also sent to the receiver and can be viewed using theTrangoLink software or the receiver.  No alarm is generated.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.12Figure 4 shows the front panel of the VRX5900 receiver and the functions of each control andinput/output.  This card is encased in a NEMA-4X rated aluminum/powdercoat enclosure.  Do notremove the card from the enclosure.1. Power2. Alarm 1/2 relay outputs3. Right audio output4. Left Audio output5. Stereo/Alarm switch6. Data7. Video output8. Toggle/RSSI9. Channel LEDs10. Antenna connector11. Header for use with optionalLC485/422• FIGURE 4 •8.2.9.5.1.7.6.4.3.10.11.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 13VRX5900 Receiver Inputs/Outputs & Controls:1. POWER INPUTAccepts a 6-9 Vdc power source such as the standard 7 Vdc adapter (Trango partnumber PT07800-1), or an optional battery.  The nominal current draw is 450milliamperes.   If using an adapter from a third party, use a well-regulated 6-9Vdc/500mA output supply.2. ALARM OUTPUTSThese are dry contact relay outputs which can sink 1 ampere at 40 V AC/DC.  Whenthe corresponding transmitter alarm input closes or opens, this output will close andopen as well.  Consider these outputs mirrors of the transmitter alarm inputs.  Theseoutputs are independent and can be used to turn on peripheral devices such as videorecorders and audible alarms.3/4. RIGHT & LEFT AUDIO OUTPUTSDesigned to mate to a standard RCA male connector, this provides a 1.5 Volt peak-to-peak audio output and should be terminated in a minimum 600 Ω load, as is foundin most “line in” audio inputs.5. STEREO/ALARM SWITCHWhen this switch is in the “R Audio On” position, stereo audio transmission isenabled.  This permits the transmission of stereo audio with no data or alarms.  Whenit is in the “Alm/Data Mode On” position, alarm transmission is enabled.  If DataPass-Through mode is enabled through the TrangoLink software, the switch must beset to the “Alm/Data Mode On position.6. DATA INTERFACEWhen connected to a personal computer via the optional CBLDAT-1 interface cable,this input accepts serial commands that control settings in the receiver not availablevia the front panel.  See the TrangoLink software program help for more information.This port is also used for Data Pass-Through mode for RS-232 signal levels.7. VIDEO OUTPUTDesigned to mate to a standard BNC male connector, this provides a 1 Volt  peak-to-peak video signal output.  This must be terminated with 75 Ω.  RCA to BNC adaptersare available for use with some monitors and VCR inputs.8. TOGGLE/RSSITo change the receiver channel, depress this switch momentarily.  Remember tochange the transmitter channel as well since it is not automatically changed.To enter RSSI (Received Signal Strength Indicator) mode, hold down this button for2 seconds.  The number of channel LEDs lit is an indicator of signal strength, whichcan aid in finding the best antenna position.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.149. CHANNEL LEDsThese LEDs display the current receiver channel and act as a Received SignalStrength Indicator.CAUTIONCAUTIONCAUTIONCAUTIONDO NOT APPLY EXTERNAL VOLTAGES TO THE ALARM OUTPUTS.PERMANENT DAMAGE TO THE UNIT MAY RESULT.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 15VRX5900 Receiver Operation:Changing Channels:To change channels, simply depress the Toggle/Standby switch momentarily until theLED for the desired channel pattern is lit up.  Remember to change the transmitterchannel as well, since it is not automatically changed when the receiver channel ischanged.  As a rule of thumb, the first 6 systems operating along the sametransmission path should be set to use even channels ( 2,4,6,8,10,12).  If more than 6systems are required along the same path, use opposite polarization antennas and thenset the units to operate on the odd channels (1,3,5,7,9,11).  Contact Trango TechSupport for additional help on setting the correct configuration for your application.Alarm Outputs:When the VRX5900 receives an alarm state change from the transmitter, it will closeor open the corresponding alarm output. The state of the alarm outputs (open orclosed) can be viewed using the TrangoLink software.  If the transmitter is inStandby mode or the transmitted signal is lost, the receiver will hold the last receivedvalid state of the alarms. The Alarm outputs are dry-contact relays.RSSI Mode:To ease alignment of the receiver antenna, the received signal strength may beviewed by placing the unit in RSSI mode.  The LEDs will then act as a bar-graphindicator, with more LEDs lit for a stronger signal.To enter RSSI mode, hold down the Toggle/RSSI button for 2 seconds.  To exit,depress the button momentarily. The number of LEDs lit is a relative indication ofsignal strength to be used only to find the best antenna position.  Viewing thereceived picture quality should be used in conjunction with this mode.Data Pass-Through Mode:The transmitter and receiver can be used to pass user data one-way from theVTX5900 to the VRX5900 at rates from 1200 to 9600 bps.  (For optimum datatransmission without losses, both the transmitter and receiver should be configured topass or accept data at the same rate.  The data rate can be configured using theTrangoLink software.)  To enter Data Pass-Through mode, the Stereo/Alarm switchshould be placed in “Alm/Data Mode On.”  Then, from the TrangoLink software,select “Pass-Through Mode.”  Make sure both the VTX5900 and the VRX5900 havebeen configured for Data Pass-Through mode. The Right Audio channel will bedisabled in this mode while the Left Audio channel can still transmit monaural audio.Alarms and Link Verification cannot be transmitted when in Data Pass-Throughmode.  Do not use CBLDAT-1 to send or receive data since it contains extra wiresnot used for normal data transmission.Please see the pinout diagram in Figure 3 for more information on wiring the dataconnector for RS-232.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.16INTERFERENCEIf interference such as lines in the pictures is observed, changing the transmissionchannel may cure the problem.Also, AC generators in close proximity to the transmitter or receiver may cause linesin the picture.  Move the unit away from the source of the interference.NO PICTURECheck that the transmit and receive channels are set the same, and make sure thetransmitter is not in Standby mode (slow, blinking LED), or that the battery is notlow (fast, blinking LED).Verify all connectors are tight.POOR PICTURE QUALITYRaise transmitter and receiver antennas above ground and away from obstacles andtraffic, including foot traffic.Use an optional high-gain dish antenna on the receiver. Verify all connectors aretight.  Shorten the receiver antenna feed cable.VIDEO TOO DARKMake sure that any monitors/peripheral equipment connected to the video source areset to high impedance termination since the VTX5900 has a built-in 75 Ωtermination.VIDEO TOO BRIGHTMake sure that the receiver video output line is terminated with 75 Ω.CAN’T COMMUNICATE WITH TRANSMITTER OR RECEIVER USINGTRANGOLINKPerform a system reset by holding toggle switch down  while applying power.  Allmemory locations will be erased and the system will be reinitialized.  All LEDs willlight up to indicate a successful reset.  Release the toggle switch.Check the Technical Support section of our website at http://www.trangosys.com/ foradditional assistance.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 17PC Requirements & Installation:In order to run TrangoLink, you will need Windows 95 or higher, 400 kB of free diskspace, and one free 9-pin serial port.To install:The TrangoLink program which can be found at our website athttp://www.trangosys.com/ is a self-extracting and installing file.  To installTrangoLink on your PC, simply download the file and double-click on it.To uninstall:1. Click on Start, then Settings, then Control Panel.2. Double click on Add/Remove Programs.3. Select TrangoLink, and click Add/Remove.TrangoLink with the FALCON PLUS System:The TrangoLink software allows the user to change the user settings on the FALCONPLUS transmitters and receivers.  The software runs under the Windows 95 or higher PCplatform and connects from COM1-4 to the Data interface on the transmitter or receivervia the CBLDAT-1 interface cable.To enter the program, the user must apply power to the connected unit and run theTrangoLink program by clicking on the TrangoLink icon in Start/Programs.After entering the program, a screen is displayed showing the current settings, which canbe changed by the user.
Copyright © 1999 Trango Systems, Inc.  All rights reserved.18Configuring the FALCON PLUS Transmitter:Via the TrangoLink interface panel for the VTX5900 transmitter, the user can configurethe following settings:MENU CONTROLS:File: Choosing this pull-down menu brings up three options:Sound: This toggles the PC sound on and off, so that the PC can beep (ornot) if a change in any of the indicators is received.Select Port: This selects the serial port through which the PC isconnected to the transmitter or receiver.  The cable required to connectmay be purchased from your Trango Systems sales representative.Exit: Exits TrangoLink.Link Verification:  This option brings up a dialog box by which the LinkVerification Code can be set.  This is a 32-bit code sent from the transmitter to thereceiver to verify that the signal is being received from the proper location.  The linkverification codes on the transmitter and receiver must match for reception of alarmsor low battery signals.  If the codes do not match video will still be received, but theuser will be notified that it is not coming from the proper location.Pass-Through Mode: Choosing this pull-down menu brings up the following dialogbox shown in Figure 5 through which the data rate and parity can be chosen.  To usethis function, the Stereo/Alarm switch on the transmitter and receiver must be set to“Alm/Data Mode On.”• FIGURE 5 •Help: Choosing this pull-down menu brings up two options:Help Topics: This offers you an index of online help topics.About: This displays the copyright notice and version number of yourcopy of TrangoLink.SCREEN CONTROLS:Current Channel: This must be the same on the transmitter and receiver in order forvideo, alarms, and/or data to be transmitted properly.Select Mode: The Normal button places the transmitter in Normal mode or awakensit from Standby mode.  The Standby button places the transmitter in either Secure
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 19Standby or Power Save Standby, depending on the value entered in the Power SaveTimer field.Power Save Timer:  The FALCON PLUS can reenter Standby mode after a presetamount of time has passed, which can be entered in the Power Save Timer field(Power Save Standby mode).  If zero is entered, the transmitter will not reenterStandby mode (Secure Standby mode).  To enter a new value, type the desirednumber of minutes into the Power Save Standby field, and press the “Set new value”button.In Fig. 6, the TrangoLinkinterface screen shows that thetransmitter is set to Channel 3, inNormal mode (not Standby),with the Power Save timer set to0 minutes (Secure Standby).  Inthis configuration, the transmitterwill not reenter Standby modeafter awakening.Fig. 6
Copyright © 1999 Trango Systems, Inc.  All rights reserved.20Configuring the FALCON PLUS Receiver:Via the TrangoLink interface panel for the VRX5900 receiver, the user can configure thefollowing settings:MENU CONTROLS:File: Choosing this pull-down menu brings up three options:Sound: This toggles the PC sound on and off, so that the PC can beep (ornot) if a change in any of the indicators is received.Select Port: This selects the serial port through which the PC isconnected to the transmitter or receiver.  The cable required to connectmay be purchased from your Trango Systems sales representative.Exit: Exits TrangoLink.Link Verification:  This option brings up a dialog box by which the LinkVerification Code can be set.  This is a 32-bit code sent from the transmitter to thereceiver to verify that the signal is being received from the proper location.  The linkverification codes on the transmitter and receiver must match for reception of alarmsor low battery signals.  If the codes do not match video will still be received, but theuser will be notified that it is not coming from the proper location.Pass-Through Mode: Choosing this pull-down menu brings up the following dialogbox shown in Figure 7 through which the data rate and parity can be chosen.  To usethis function, the Stereo/Alarm switch on the transmitter and receiver must be set to“Alm/Data Mode On.”• FIGURE 7 •Help: Choosing this pull-down menu brings up two options:Help Topics: This offers you an index of online help topics.About: This displays the copyright notice and version number of yourcopy of TrangoLink.SCREEN CONTROLS:Current Channel: This must be the same on the transmitter and receiver in order forvideo, alarms, and/or data to be transmitted properly.Link Verification Error: Green indicates that the receiver is receiving a matchingLink Verification Code from the transmitter.  Red indicates that it is not.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 21Sync Loss: Green indicates that the receiver detects a vertical sync pulse on thereceived video signal.  Red indicates that it does not, and hence that no video is beingtransmitted.Low Transmitter Battery: Red indicates that the transmitter has a low power supplyvoltage (< 6 Vdc).  Green indicates that power supply voltage is within acceptablelimits.Alarm 1 and Alarm 2: OPEN indicates that contacts are open on the receiver,CLOSED that they are closed.Signal Strength: Also called RSSI (Received Signal Strength Indicator).  Presents abar graph proportional to the received signal. Useful in troubleshooting to determineif any other signals are present in the frequency band and to help align antennas.In Fig. 8, the TrangoLinkinterface screen shows thatthe receiver is set to Channel3, both Alarms are open, anda low battery condition existson the transmitter.Fig. 8
Copyright © 1999 Trango Systems, Inc.  All rights reserved.22VTX5900 Transmitter: ElectricalRADIO SECTION:Frequencies: Channel 1: 5740 MHzChannel 2: 5750 MHzChannel 3: 5762 MHzChannel 4: 5772 MHzChannel 5: 5784 MHzChannel 6: 5794 MHzChannel 7: 5806 MHzChannel 8: 5816 MHzChannel 9: 5828 MHzChannel 10: 5838 MHzChannel 11: 5850 MHzChannel 12: 5860 MHzRF Output Power: Meets FCC Part 15.249 radiated field strength of 50 mV/m at 3meters with CP helix antenna provided with unit.VIDEO SECTION:Input Level: 1Vpp per NTSC/PAL standardInput Impedance: 75Ω unbalancedModulation: Wideband direct FM (for composite signal)Modulation Index: 1.0 at 8.0 MHz for composite A/V signal (±8.0 MHz deviation)Pre-emphasis: CCIR Rec 405-1AUDIO SECTION:Input Level: 1 Vpp NominalInput Impedance: 600 ΩBandwidth: 50 Hz – 15 kHz (3 dB)Modulation: Wideband FMSubcarriers: 6.0 MHz (right) and 6.5 MHz (left-monaural)Modulation Index: 1.0 at 75 kHz for audio (±75 kHz deviation)Pre-emphasis: 75 µS
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 23ALARM SECTION:Input Level: Normally open contact closure input on both Alarm 1 and Alarm2.  The current state of the input (open or closed) is transmittedto the receiver which reflects the transmitter alarm  input states.DO NOT APPLY VOLTAGES TO THESE INPUTS ASDAMAGE TO THE UNIT WILL OCCUR.POWER SECTION:Input Voltage: 7 Vdc nominal, 6-12 Vdc rangeCurrent Consumption: 200 mA typical in normal mode, 10 mA in Standby modeMax. Ripple Input: 1 VppLow Battery Sens.: < 6 Vdc
Copyright © 1999 Trango Systems, Inc.  All rights reserved.24VTX5900 Transmitter: Mechanical & EnvironmentalGENERAL:Material: Cast aluminum NEMA 4X rated outdoor enclosureFinish: Off-white powdercoatSize: 4.65” W x 8.8”L x 2.475”H without antennaWeight: 2.65  lbCONNECTORS & INDICATORS:RF Output: Custom connector in compliance with FCC rules part 15C,15.203.FCC Compliance: The transmitter shall comply with FCC Part 15.249, FCC Part 15Subpart B, Industry Canada Specifications (RSS 210 Issue 2)PC Interface: 6 position, 4 conductor RJ11 female right angle PCB mountVideo: BNC female PCB mountAudio: Red RCA female PCB mount – R AudioWhite RCA female PCB mount – L Audio (Mono)Alarm/Power: 6 post terminal block (6-12 Vdc, GND, ALARM 1, ALARM 2)Controls: Channel switch: momentary, toggles through modes/channelsStereo/Alarm switch: DPDT switch allows selection ofdata/alarms or right audio on 6.0 MHz subcarrierIndicators: 4 channel LEDs which display the current channel, 1 Status LEDwhich blinks slowly in Standby mode and rapidly when batteryis lowENVIRONMENTAL:Operating Temp.: -20 to 70 ºCStorage: -40 to 85 ºCHumidity: 100% (enclosure)Shock: Sustain 3-axis drop from 5’
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 25VRX5900 Receiver: ElectricalVIDEO SECTION:Video 3dB BW: 5.8 MHz (Conforms with NTSC/PAL standard)Video Output S/N: > 40 dB with –85 dBm RF input> 42 dB with –80 dBm RF input> 48 dB with –75 dBm RF inputVideo Diff. Gain: < 5%Video Diff. Phase: < 5 degreesChr. To Lum. Gain: 70% to 107%Chr. To Lum. Delay: ±60 nSOutput Load Imp.: 75 ΩDC Clamping: Back Porch with 0 V typical DC offsetAUDIO SECTION:Audio Bandwidth: 50 Hz to 15 kHz (3 dB)Harmonic Distortion: < 1% over 50 Hz to 15 kHzAudio Output S/N: > 12 dB with –85 dBm RF InputOutput Load Imp.: 600 ΩOutput Level: 1.5 Vpp typicalALARM SECTION:Data Rate: 19,200 bpsCoding Scheme: 32 bit command/address, 8 bit data with checksumOutput Level: Reflects state of transmitter alarm inputs – updated twice persecondPOWER SECTION:Input Voltage Range: 7 Vdc nominal, 6-9 VdcMax. Ripple Input: 1 VppCurrent Consumption: 450 mA nominal in receive mode and RSSI mode
Copyright © 1999 Trango Systems, Inc.  All rights reserved.26DATA PASS THROUGH MODE:Protocol: Simplex, 3-wire, RS-232 levels, using serial portSerial Port Settings: 1200, 2400, 4800, 9600 bps with adjustable parity (even, odd,none –8,N,1 Standard), configurable with TrangoLink softwareLatency: < 15 mS end to endBER: < 1E10-6 at –80 dBm input signal levelNote: RS-422/485 interface available with optional daughter board.
Copyright © 1999 Trango Systems, Inc.  All rights reserved. 27VRX5900 Receiver: Mechanical & EnvironmentalGENERAL:Material: Cast aluminum NEMA 4X rated outdoor enclosureFinish: Off-white powdercoatSize: 4.65” W x 8.8”L x 2.475”H without antennaWeight: 2.65  lbCONNECTORS & INDICATORS:RF Input: SMA female connectorFCC Compliance: The receiver shall comply with FCC Part 15.203, FCC Part15.207(a), FCC Part 15 Subpart B, Industry CanadaSpecifications (RSS 210 Issue 2)PC Interface: 6 position, 4 conductor RJ11 female right angle PCB mountVideo: BNC female PCB mountAudio: Red RCA female PCB mount – R AudioWhite RCA female PCB mount – L Audio (Mono)Alarm/Power: 6 post terminal block (6-9 Vdc, GND, ALARM1, ALARM 2)Controls: Channel switch: momentary, toggles through modes/channelsStereo/Alarm switch: DPDT switch allows selection ofdata/alarms or right audio on 6.0 MHz subcarrierIndicators: 4 channel LEDs which display the current channelENVIRONMENTAL:Operating Temp.: -20 to 70 ºCStorage: -40 to 85 ºCHumidity: 100% (enclosure)Shock: Sustain 3-axis drop from 5’

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