User Manual
Contents
1. FCC License Approved by FCC and DOC Canada no user license required RC4 TXD s Transmitter Specifications Input Power ACLISV 60Hz 0 5A DMX Input USITT DMX512 1990 4uSec Analog CV Inputs 0 10V x 8 channels 20K ohm input impedance RC4 Dimmer Specifica jons RC4 RX4 Standard Continuous current per channel 12 5A 150W Intermittent peak current per channel 20A 240W Total current sum of all channels 42A 500W Over Current Protection on Dimmer Outputs YES Over Temperature Protection on Dimmer Outputs YES Maximum input voltage 15V 12V typical Minimum input voltage 9V Suitable for inductive loads motors solenoids etc YES RC4 RX4 HO High Output Continuous current per channel 21A 250W Intermittent peak current per channel 30A 360W Total current sum of all channels 83A 1000W Maximum input voltage 15V 12V typical Minimum input voltage 9V Suitable for inductive loads motors solenoids etc YES Soundsculpture RC4 Operation Manual Page 40 of 41 RC4 RX4 MINI Continuous current per channel 5A 60W Intermittent peak current per channel 8A 100W Total current sum of all channels 17A 200W Over Current Protection on Dimmer Outputs YES Over Temperature Protection on Dimmer Outputs YES Maximum input voltage 15V 12V typical Minimum input voltage 9V Suitable for inductive loads motors solenoids etc LIMITED 1 Wiring instructions must be clo2. First you must select the RX number to be edited using the Select RX function You can proceed to modify the configuration for this receiver regardless of whether or not it is powered up and Active The receiver must be powered on and Active however before you can successfully upload your configuration to that receiver All configuration settings are stored in the transmitter as well as each receiver allowing you to do all your configuration programming before you set up your receivers To assign dimmers to specific rf control channels press Assign RX Chans The screen will indicate the selected RX number the currently assigned control channels for the four outputs top line of the LCD and the corresponding DMX channels in the current DMX Setup which can also include CV inputs If the currently selected receiver is live and Active the transmitter will retrieve and display current internal settings Otherwise the transmitter will use the settings stored in eeprom RX 4 receivers running firmware 2 200 or higher provide two different user selectable dimmer curves Linear and Inverse Square Law Earlier firmware versions offer only the Linear curve If the control channel number is preceded by a a on the display the channel is configured as a linear dimmer If the channel number is preceded by an s the dimmer is configured as a switch see Switch Mode below for additional information If the control channel number is preceded
3. BE E 0 UNPROTO RC4TX LAWNGRAM ON TRANSGRA ON LCALLS RC4RX PACLEN 0 TIMEOUT 0 SAVE lt allow at last 500ms for save to complete gt TRANS Soundsculpture RC4 Operation Manual Page 34 of 41 If you are not already connected at 38400 baud you will have to reconnect to the LAWNII radio at this speed after setting ABAUD 38400 New LAWNII radios are configured at the default baud rate of 9600 so initial connections must be made at this speed The RC4 dimmer system requires a baud rate of 38400 The transmitter and any associated receivers MUST have the same SYS and CHA settings of they will not communicate with one another RX4 MINI Lawn Il RF Module Setup Connection to the radio module in the RX4 MINI is made through a small 4 pin Amp MTA 100 series header beside the main power connector An adaptor allows connection to a terminal or computer COM port and a source of power The header is Amp 640456 4 It mates with any Amp MTA 100 4 pin connector The specific part number varies with wire gauge being used a suitable part for 26AWG wire is Amp 640442 4 Pinout Pin 1 GND Serial Data Common Pin 2 12VDC Pin 3 RS 232 Data Receive RX Pin 4 RS 232 Transmit Data TX This is a 3 wire RS 232 interface with no handshaking With working data and power connections radio configuration is the same as for other RC4 receivers Note that RC4 radios never require configuration under normal circumstances Soun
4. CV inputs To save the current assignments you have created using the Set DMX Start and or Edit DMX CV Assigns functions press Save DMX Setup Use the rotary control to select the destination memory location 1 then press the Enter key or the rotary knob to execute the save Upon execution any previously stored settings in the selected memory location are overwritten When the save is complete you are returned to Watch Channels mode Recall DMX Setup Note Current channel assignments are maintained even if you don t save them in a DMX Setup Save and Recall of DMX setups is provided to facilitate switching between different channel maps you may need for different shows theatres etc To recall an assignment map for current use press Recall DMX Setup Use the rotary control to select the source memory location 1 3 Press the Enter key or the rotary knob to execute the recall Upon execution previous settings are overwritten with the settings from memory Soundsculpture RC4 Operation Manual Page 11 of 41 Transmitter Channel Test Functions It is often desirable to test dimmers at times when DMX data is not available The RC4 TXD Series transmitter provides two very useful options to accomplish this DMX and CV inputs are not interrupted when test modes are invoked normal data transmission continues Only the channel currently being tested is overridden Test modes could therefore be used intentionally during a runnin
5. Operation Manual Page 22 of 41 RX4 Receiver Power Connection Diagram The RX4 STANDARD is remarkably versatile and powerful for its small size Four outputs deliver pulse width modulated power capable of driving high current motors lamps and other inductive or resistive loads Each output is rated for 150W equivalent to approximately 12 Samps at 12 volts The four outputs can be combined in any combination to drive larger loads to a maximum of 500W into a single load 40A Total receiver power handling is limited by circuit board traces copper trace thickness and width and connector pins For higher power handling use the RX4 HO high output which is directly interchangeable with the RX4 STANDARD and can deliver up to 1000W with caution and adequate ventilation Mating Free Hanging Connector AMP 1 480285 0 Use pin 60619 0 10 required pae pin 1 Battery Positive RED pin 2 Battery Negative BLK Out 1 Positive CORNG pin pin 4 Out 1 Negative BRN pin 5 Out 2 Positive CORNG pin 6 Out 2 Negative GRY pin 7 Out 3 Positive CORNG pin OUT3 Negative BLU Out 4 Positive CORNG Out 4 Negative PUR pin pin OUTPUTS ARE COMMON POSITIVE SWITCHING OCCURS ON NEGATIVE SIDE INTERNAL LOAD FUSE IS ON POSITIVE SIDE The recommended AMP tool for these connector pins is 90124 2 Shells pins and tools are available from most electronic component suppliers includ
6. Set RX Channel Assignments 15 Set Other RX Parameters 16 RX Setup Copy RX Setup Paste 1 Send RX Config 18 RX4 Receiver Operation RX4 Receiver Buttons and Indicators 19 Changing the RX Number 20 Default Settings 21 Dimmer Power Wiring and Fusing z RX4 Receiver Power Connection Diagram 23 RX4 HO High Output Receivers 25 RX4 MINI Receivers 27 RX4 STANDARD Typical Wiring Diagram 29 RX4 STANDARD RX4 HO Typical Hi 30 Receiver Load Testing Receiver 31 Receiver Battery Voltage Indication 31 Radio Settings 2 Set System ID 32 Set System Baud Rate 33 Additional System Parameters 33 Setting the System ID 33 Using Other Channels 34 Complete LAWNII Configurations for the RC4 System 34 RX4 MINI Lawn II RF Module Setup 35 A General Discussion of Radio Reliability amp Troubleshooting Simple Solutions to Common Problems 37 Reset and Initialize to Factory Defaults 39 RC4 Specifications Soundsculpture RC4 Operation Manual Page 3 of 41 RC4 2 0 System Overview The RC4 2 0 wireless dimmer system is an enhanced 4th generation digital system for operating theatrical lighting motors and solenoids It offers improved performance over previous Soundsculpture systems with more channels and a user interface that allows receivers to be configured remotely from the transmitter Spread spectrum RF technology ensures a secure robust and high speed wireless link between all system components and does not req
7. bring the positive supply to the RX4 internal control electronics and the fuse on the RX4 can be 1A or even smaller since it will only supply the indicator LEDs AIL RX4 dimmers introduce pulse width modulation on the negative side of the circuit acting as a dimmer on the negative line to the load This is where you need heavy wire and you should utilize all 4 input and output connections across both power connectors If you are using the RX4 as one large dimmer on a single channel you can wire the outputs of each channel in parallel For this to work effectively circuit impedance and resistance for each channel must be closely controlled More current will flow through shorter circuits thicker wires and tighter connections and this can cause more than a fair share of the total load to be flowing through a particular dimmer channel This kind of overloading causes overheating and damage that is not covered under warranty and can be a fire hazard For optimal safe performance resistances of each parallel circuit should be as close to identical as possible Beware of faulty or worn connectors adding substantial resistance Soundsculpture RC4 Operation Manual Page 25 of 41 Damage caused by not configuring parallel channels identically is not covered under warranty and can be a fire hazard When ganging output channels together they must be set to the same data channel and have the same Low Level cut off value Otherwise one or more
8. by an i on the display the channel is configured for inverse square law dimming Inverse square law dimming is ideal for use with LEDs providing a very smooth high resolution output that looks great even at the low end of the dimmer range cursor is here dimmer dimmer switch dimmer rfchan5 rfchan6 _ rfchan9 rf chan 32 Receiver RX012 not Active near dimming ideal for incandescent and halogen lamps i inverse square law dimming ideal for LEDs witch output ideal for solenoids inverters and other non dim loads Press the Exit key to escape back to Watch Channels mode Note The corresponding DMX CV channels will change if the current DMX Setup is changed Soundsculpture RC4 Operation Manual Page 15 of 41 Set Other RX Parameters In addition to a channel assignment dimmer outputs have other parameters as outlined below These parameters can be edited by pressing Set RX Params and moving the cursor with Left No and Right Yes keys The value under the cursor can be edited by turning the rotary control cursor is here dimmer dimmer switch dimmer rfchanS rfchan6 _ rfchan9 rf chan 32 Receiver RX012 not Active Low Level Limit Each dimmer output has a range of 255 dimmer levels implemented as a PWM pulse width modulation signal at a base frequency of 75Hz In some cases large loads draw excessive currents for brief periods when driven at low power levels This is because PWM applies ful
9. key is pressed all settings for the selected RX number dimmer channel assignments Low Level limits and switch mode settings are uploaded by radio to the corresponding RX4 radio dimmer At the same time and regardless of the presence of an Active receiver settings are backed up to eeprom memory in the transmitter If the corresponding receiver is not Active the transmitter LCD will report RXxux Not Found Otherwise the LCD will report Setup Confirmed The confirmation process verifies every parameter sent while also retrieving the receiver firmware version current battery voltage and more OR A radio dimmer will assume a new RX number if it receives a control packet while the Set RX recessed button is held down In this case the RX value of that packet will become the new RX number for that receiver Subsequent control packets for this RX number will be accepted and acknowledged with no need to hold down the Set RX button See the Receiver Operation section for additional information Ina properly functioning system it is never necessary to use the Set RX button on a receiver Every receiver should have its own RX number for the entirety of its service life The only time the Set RX function should be used is when adding a new receiver to an existing system or resetting a receiver after default settings have been loaded NOTE The correct System ID must be programmed in the receiver or no data will be accepted regardless of t
10. the cycle To prove this is happening put a volt meter across the power input terminals at the RC4 receiver The voltage will drop when the load comes on When the voltage drops enough the load will go off When the voltage drifts back up enough the load will switch back on If these voltage fluctuations are apparent at the receiver but not at the battery terminals then wire and connections are at fault you must conduct adequate current from the battery to the receiver to avoid these unwanted voltage drops Soundsculpture RC4 Operation Manual Page 37 of 41 Solution Ensure the battery is fully charged using a smart charger that accurately indicates the condition of the battery Be sure the battery is rated large enough for the intended load for the operating time you require Be sure wire gauges are large enough especially between the battery and the Teceiver dimmer Be sure connections are tight and strong Hot wires or connections are probably causing problems Problem Fades are not smooth channels intermittently black out for a second or more Cause The RC4 system depends on RF signals getting from the transmitter to the receivers An antenna is under the top cover of each 7 x 4 x 2 enclosure one at the transmitter and one in each receiver The RC4 system operates in the 907 921Mhz range using spread spectrum digital radio Although output power is quite low high frequency signals bounce eas
11. the RX number of a receiver send a configuration from the transmitter using the RX number you desire while simultaneously holding down the Assume RX Number button on the receiver 4 button from the left The RX number of the sent data packet will be assumed by the receiver and stored in eeprom The receiver MUST be powered on and Active during this process The radio board must be programmed with the correct system number Subsequent configurations for this RX number will be accepted without holding any button down When a receiver accepts new configuration data it displays a short light show acknowledgement on its four LEDs It also sends a digital acknowledgement back to the transmitter The light show is displayed if a configuration message comes in for the current RX number or if a configuration message comes in while the Assume RX Number button is down In the latter case the new RX number becomes the current RX number for future configurations NOTE Some receivers may contain customized firmware for special applications A specific RXnum is required to activate these custom processes For example a custom dual motor speed control might be activated by using RX128 Customized receivers usually default to their special functions if defaults are loaded using the receiver s recessed buttons Refer to the documentation supplied with your customized receiver for additional information about your specific unit Soundsculpt
12. 1 Soundsculpture RC4 Operation Manual Receiver Load Testing Receiver Test Buttons All RX4 receivers have a channel test button for each on board dimmer These buttons are recessed to avoid accidental activation and can be pressed with any slender object Test buttons override incoming levels only while pressed Any combination of the four channels may be tested simultaneously Receiver firmware 2 200 or higher provides a fade up to 100 when a test button is pressed Previous firmware versions switch the channel on to 75 of maximum level Receiver Battery Voltage Indication The Computer Operating Properly COP blinking LED on RC4 RX4 receivers also indicates battery voltage At 10 5V or higher this LED is green and blinks slowly Below 10 5V it is red and blinks rapidly These voltage thresholds have been selected with rechargeable lead acid batteries in mind A 12V lead acid battery should never be discharged below 10V or it will be chemically damaged leaving it unable to fully recharge to original capaci RC receivers manufactured after July 2005 will operate without radio dropouts on battery voltage down to 8V Older units operate down to 10V An for older units is available on request and is recommended for use with NiCad or NiMH batteries When using RX4 STANDARD or RX4 HO receivers an auxiliary logic battery can be used to ensure radio and logic circuitry continues to operate when the load battery is severely dischar
13. But in some cases particularly where CV channels are used levels do not always stay at zero or 255 and small amounts of noise or flutter are common Any amount of data flutter could cause a PWM dimmer level to be invoked This is avoided by selecting Switch Mode Each output can be set for dimmer or switch mode Soundsculpture RC4 Operation Manual Page 16 of 41 NOTE Soundsculpture TXD Series transmitters and RC4 receivers are fully digital making channel flutter highly unlikely Nonetheless flutter could get into DMX data before it arrives at the transmitter and flutter on analog CV inputs is common Data meout Period not user adjustable For various reasons rf dimmer data could be interrupted When this happens dimmer outputs will be maintained at their last known value for one second while the receiver Waits for valid data to reappear This one second period is not user adjustable If no good data has been received in this period all dimmer levels are cleared to zero The 32 channel TX32D transmits 32 rf channel levels approximately 60 times per second This gives receivers 60 opportunities to capture new rf data before dimmer levels blink out In reality the RC4 radio link is robust enough that single data packets are seldom lost never mind 60 in a row Visible effects of radio interference are virtually non existent with the RC4 system The DMX512 1990 specification published by the United States Institute for Th
14. C4 system is VERY tolerant of signal degradation and electrical noise Most users have no problems in fact at the time of this writing only one radio interference problem has ever been reported with an RC4 system and the problem was corrected when the transmitter was moved away from an unusually noisy lamp If you think you re suffering radio interference problems FIRST be absolutely certain your batteries are good Soundsculpture RC4 Operation Manual Page 38 of 41 Problem You need to operate two or three RC4 systems in close proximity without interference Out of the box systems do not directly address each other s receivers but responsiveness is clearly degraded Cause RC4 radios have 3 radio channels available but most systems are set for the default channel 2 To ensure the fastest response time with the largest number of channels almost all available radio bandwidth of a channel is used by a single system When two systems try to share bandwidth on the same radio channel both systems perform poorly Even when this happens multiple RC4 systems cannot directly address each other s receivers because they have different digital System IDs Solution Set nearby RC4 systems to operate on different channels When operating two systems set them to operate on channels 1 and 3 We do not recommend operating more than 3 RC4 systems in close proximity Problem You only have one RC4 system but you suspect there might be an
15. Cirl C three times to enter command mode gt SYS lt use number for your system gt SAVE lt allow at least 500ms for save to complete gt TRANS To avoid conflicts Soundsculpture RC4 systems use System IDs of 1000 or higher Soundsculpture RC4 Operation Manual Page 33 of 41 Using Other Channels At the factory all RC4 LAWNII transceivers are set up on radio channel 2 CHA 2 LAWNII radios support three channels 1 2 and 3 and any of these may be used with the RC4 system If another channel is used this setting must be changed at every LAWNII in the system the transmitter and each receiver Note If you are using multiple RC3 systems and experience reduced refresh rates as they try to share radio bandwidth try changing the channel of one system If you are using 2 systems run them on channels 1 and 3 to keep the as far apart in the radio spectrum as possible Complete LAWNII Configurations for the RC4 System For a single Transmitter TX LAWNII AUTOLE ON ABAUD 38400 MYC RC4TX DFCN RC4TX SYS lt number for your system gt CHA 2 lt other channels can be used gt PACTIME A 1 BE E 0 UNPROTO RC4RX LAWNGRAM ON TRANSGRA ON LCALLS RC4TX PACLEN 0 TIMEOUT 0 SAVE lt allow at last 500ms for save to complete gt TRANS For any number of Receiver RX LAWNIIs AUTOLF ON ABAUD 38400 MYC RC4RX DFCN RC4RX SYS lt use number for your system gt CHA 2 lt other channels can be used gt PACTIME A 1
16. ON OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES Beside the main power connector on RX4 receiver dimmers is a pair of clips for a load fuse Standard AGC fuses fit easily into these clips This fuse is in the positive side of the dimmer output circuit To effectively protect the load wiring and electroni following dimmer fusing techniques MUST be used and to reduce potential hazards one of the 1 Choose a load fuse that accurately reflects the total load for all four channels This technique is best when loads are relatively small i e one MR16 on a single channel 2 Use extemal fuses for each individual output appropriately sized for each load Put the fuse in the positive side of the load circuit returning directly to the positive side of the supply battery rather than the positive output terminals on the dimmer RX4 dimming is done on the negative side This option is recommended for high currents A small fuse should still be installed on the RX4 board to drive the indicator LEDs A positive lead must still come to the receiver to power the logic circuitry DO NOT OPERATE LOADS WITHOUT FUSES YOU MUST FUSE EVERY CIRCUIT DO NOT simply install the largest fuse you can find and forget about it This can result in an unsafe tuation possibly a fire or burn hazard It is not recommended to internally fuse any RX4 receiver above 25A DO NOT fuse any single RX4 d
17. RC4 ming www theairewireless com 1 866 258 4577 2 0 User Manual Revision 1 3 July 2005 JDS Soundsculpture Solid State of the Arts 1 866 258 4577 www theatrewireless com Disclaimers WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES Soundsculpture devices and equipment are operated at the user s own risk and Soundsculpture Incorporated accepts no liability either direct or consequential arising from the use of this equipment Not For Use Where Human Safety May Be At Risk The Soundsculpture RC4 radio system has not been evaluated by any safety agency for use where human safety may be at risk Soundsculpture Incorporated accepts no liability if RC4 equipment is used for such purposes Not For Control of Pyrotechnical Devices Soundsculpture RC4 receivers should not be used to control pyrotechnical devices A brief output surge on dimmer outputs during power up could trigger these devices Soundsculpture Incorporated accepts no liability if RC4 equipment is used for such purposes Product Safety RC4 TXD Series transmitters are designed to meet or exceed applicable UL CSA and CE standards They pass the dielectric withstand test hipot to 3000VAC use UL and or CSA listed components where required and are packaged in a grounded metal chassis A Special Inspection label applied by the Electrical Safety Authority ESA of Onta
18. alues below 1000 are reserved for older 16 channel RC3 systems RC4 systems are assigned System IDs of 1000 or higher Every RC4 user is assigned a unique System ID when their system is shipped and a database of these numbers is carefully managed and maintained To avoid data collision with other users system numbers should NOT be changed Some users have multiple RC4 systems however and may wish to change the System ID in receivers to move between systems Do not change a transmitter System ID without authorization from Soundsculpture Incorporated Do not use System IDs not assigned to you Soundsculpture RC4 Operation Manual Page 32 of 41 Set System Baud Rate The default baud rate for 32 channel systen s 38 4kbps kilobits per second Additional System Parameters Each radio module must be configured for proper operation in the RC4 architecture Each System ID should have only one transmitter master and any number of receivers slaves To assist advanced users the LAWNII User s Manual accompanies this manual The radio settings used for the RC4 system create a low latency master slave network with no built in acknowledgements or retries This is because normal acknowledgement and handshaking protocols sacrifice timing for accuracy and can cause unexpected delays in data transmission For real time control systems different techniques must be used The microprocessors at each end of the RC4 dimmer control system use r
19. arked on the unit Connections and Wiring The RX4 MINI 10 pin power connector has the same pin out as the standard power I O connector on other RC4 receivers No auxiliary power connector is provided Maximum power handling is SOW per channel 200W maximum When running at maximum power it is recommended to limit the maximum time the channel is activated to avoid overheating Soundsculpture RC4 Operation Manual Page 27 of 41 The highest fuse rating that should ever be used in a MINI receiver is 16A In practice the smallest appropriate fuse should be used for the connected load s and will typically be much smaller than 16A If you are running a single SOW MRIS lamp use a SA fuse Use fast blow fuses to protect the power driver electronics WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE I ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES Configuring Cham Programming channels Low Level cut off and dimmer switch mode is done the same way for all RC4 receivers The positions of the recessed buttons and LEDs are different but clearly marked on the unit The same functions and indications are provided Soundsculpture RC4 Operation Manual Page 28 of 41 RX4 STANDARD Typical Wiring Diagram Page 29 of 41 Soundsculpture RC4 Operation Manual RX4 STANDARD RX4 HO Typical High Power Wiring Diagram aS IONS CVOSNO Page 30 of 4
20. channels could switch off while other channels are still operating causing damage to channels that remain on and causing too much current to flow through single conductors and connections It is also advised to set the Low Level cut off quite high when loads are large This prevents high EMI RFI when dimmers attempt to drive a cold filament or stalled motor Before using any RX4 receiver at high power levels please re read this manual and double check your choices of battery wire fuses and connectors Nothing should run hot if something does run hot it is under rated or improperly applied and should be replaced with a component that does not run hot If the receiver itself is running hot then either additional ventilation is required running time is too long it needs time to cool off load current are too high any combination of the above DO NOT continue to operate the receiver under these conditions WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES Be careful high power loads are operated at your own risk and Soundsculpture cannot be held responsible for any damages whatsoever whether direct of consequential Soundsculpture RC4 Operation Manual Page 26 of 41 RX4 MINI Receivers Shown here in black the RX4 MINT is available in other colors as well The RX4 MINI is the smallest most portable receiver for the RC4 wireless dimmin
21. costumes the MINI receiver can deliver 50 watts per channel with a maximum power limit of 200W The electronic assembly of the RX4 MINI can be removed from its chassis for even more flexibility when mounting in very small props or costumes ooo Soundsculpture RC4 Operation Manual Page 4 of 41 Getting Started Setting Up RC4 Components Items You Do NOT Need to Get Started RC4 systems ship with some extra items that are not needed to get started including 12VDC power adaptor Short 25 pin D Sub data adaptor cable Various extra connector shells pins ete Put these items in a safe place where they can be found in the future More information about the power and data adaptors can be found in the Radio Settings section of this manual Parts of the RC4 System The RC4 system consists of a rack mount transmitter transmitter transceiver and one or more receivers Before the system can be used each item must be properly set up and connected Transmitter The receiver is a 4 inch deep 3U rack chassis Control signals are sent to a remote spread spectrum radio transceiver via a supplied 9 foot 25 pin D Sub cable and this transceiver communicates with radio dimmers on stage The 25 pin cable carries both power and data to the transceiver Connect the rack chassis to the transceiver with this cable and position the transceiver so the top surface is facing out on the theatre stage NOTE The transcei
22. dsculpture RC4 Operation Manual Page 35 of 41 A General Discussion of Radio Reliability The Soundsculpture RC4 system is exceptionally reliable when properly set up The most critical factor when using the system is transceiver and receiver placement since these units house the high frequency spread spectrum antenna Consider the following guidelines when installing the transmitter and all receivers The antenna surfaces must not be obstructed by metal objects Remember that lead acid batteries have lead inside and count as an obstruction Internal antennas are most effective when facing other units in the system i e receivers should face towards the transmitter and vice versa Alternatively all antennas can face in the same direction up down into a wing etc reflections off ceilings and walls usually result in a solid radio link Avoid many solid obstructions between the transmitter and receivers especially as the distance between them is extended In an environment with a continuous solid reflective surface like a ceiling and a minimum of obstructions no walls RC4 spread spectrum receivers work flawlessly over thousands of square feet With transceivers facing each other directly and unobstructed line of sight point to point range can exceed 3000 feet A typical theatre environment with the transmitter transceiver secured overhead and receivers on stage less than 100 feet away is ideal No user detectable errors
23. e value of the selected parameter is adjusted by turning the rotary control In most cases the new value is saved by pressing the Enter button on the keypad or pressing the rotary control knob In other cases as when adjusting RX receiver parameters before sending them to a receiver values will remain as displayed while you navigate the screen In some modes as when editing a DMX CV Assignment the Left No and Right Yes keys increment or decrement a specific value on the screen usually the RF channel This is the case when there are only two parameters on screen one adjusted with the rotary control and the other with the buttons To escape any mode and return to the main Watch Channels screen press EXIT Soundsculpture RC4 Operation Manual Page 7 of 4 TXD Series Keypad Map Exit Move Left Move Right Watch Decrement Increment Channels No Yes The Main Screen Watch Channels The TXD Series transmitter powers up to the Watch Channels screen Using settings recalled from eeprom memory the system immediately begins spooling the selected DMX and CV channels to the radio link When RC4 RX4 radio dimmers see data with the correct system ID and channel they respond as programmed In Watch Channels mode the transmitter display is a channel monitor showing the current real time value of any DMX or CV input The rotary control selects the channel being displayed by rolli
24. eal time cyclical redundancy to ensure reasonable accuracy without introducing varying delays The coding for this technique is proprietary to the Soundsculpture RC4 system LAWNII settings can be made using an RS232 terminal or a PC running a terminal emulation program with a COM port It is important that the terminal emulator be able to send control characters i e Ctrl C The Microsoft Windows Operating system comes bundled with the HyperTerminal terminal emulation program It can be used to configure LAWNII radios Be sure to use the following settings Direct connect to any available COM port VT100 emulation Control keys act as Terminal keys very important Standard ASCII character set Additional information about connecting to the LAWNII radio with HyperTerminal is included in the LAWNII radio manual Some users of LAWNII systems have had difficulty using HyperTerminal with no problems using other terminal emulators If HyperTerminal does not work for you please try an alternative emulator program Setting the System ID The System ID of each LAWNII radio must be the same for the transmitter and all receivers used in a ingle RC4 system If you own and use more than one RC4 radio system you may wish to move receivers between systems This can be done by changing only one parameter SYS in the LAWNII radio All other settings can be left unchanged and do not need to be re entered lt connect at 38400 baud gt lt
25. eatre Technology requires DMX devices to have a loss of data tolerance of not less than 1 second Soundsculpture TXD Series transmitters have a loss of data tolerance of just over 1 second on DMX inputs There is no correlation or relationship between the DMX loss of data timeout and the RC4 Data Timeout Period A Faulty DMX link leads to the former radio interference leads to the latter RX Setup Copy RX Setup Paste When configuring many receivers several are often programmed identically or very similarly To speed the process of setting up and programming these receivers an RX Setup scratchpad memory is provided From any RX Setup screen invoked with the Select RX Assign RX Chans and Set RX Params keys all current settings can be saved to the scratchpad be pressing RX Setup Copy All parameters are saved including those not currently displayed For example Low Level cut off values are not displayed from the RX Chans screen but Low Level settings are still written to the scratchpad when the Copy key is pressed Similarly the settings currently in scratchpad memory can be recalled to overwrite the currently displayed RX setup by pressing RX Setup Paste All parameters are overwritten including those not currently displayed Use the Select RX key and rotary control to select source and destination RX numbers for Copy and Paste Soundsculpture RC4 Operation Manual Page 17 of 41 Send RX Config When the Send RX Config
26. ed from Manual Channel Test mode The speed of the chase is set with the rotary control At the slowest speed each channel fade is clearly visible and takes 3 to 4 seconds At the fastest speed channel stepping occurs at approximately 4 channels per second Select which channels will be part of the chase by pressing the Manual Channel Test key and making changes there You can then return to the chase by pressing Channel Chase Test It is not necessary to press Exit between these modes Escape test mode by pressing the Exit key Soundsculpture RC4 Operation Manual Page 13 of 41 RX4 Dimmer Settings Done at Transmitter Each RX4 radio dimmer watches for two different kinds of data packets coming from the transmitter dimmer levels control setup information In either case the correct system ID must be in the packet or the data will be ignored Channel assignments and other settings for each radio dimmer are made at the transmitter then uploaded to the corresponding receiver by using the Send RX Config function Dimmer configurations are stored both in the target receiver and in eeprom memory in the transmitter This makes it easy to create all your receiver configurations in advance even if you do not have all your receivers powered up and live Select Receiver RX Number Display Receiver Status Battery Voltage Receivers are identified by their RX number ranging from RX001 through RX128 To select a radio dim
27. even if the load bearing batteries run down Ifa non rechargeable battery is used with this connector it should be protected from reverse current with a diode Significant output currents are present on this connector Soundsculpture RC4 Operation Manual Page 24 of 41 RX4 HO High Output Receivers The high output HO version of the RX4 receiver features upgraded MOSFET power components and a cooling fan Even with these enhancements high current power handling can be dangerous and should not be sustained indefinitely At 12VDC a 1000W load demands over 80 Amps of power The batteries wires connections and fuses required to handle this kind of load are very large WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES To accommodate large loads both the RX4 STANDARD and the RX4 HO feature a 6 pin auxiliary power input connection Used together with the 10 pin power input output connector there are four separate connections in parallel to bring power in and another four to carry power out to the load s Thus each wire and connection can carry up to 20A at 12V provided it is of an appropriately large gauge The fuse on RX4 receiver boards cannot carry 80 Amps When wiring large loads the positive side of the circuit should be completely external to the RX4 receiver and it should be carefully and safely fused A small gauge wire can be used to
28. g show It is important to be aware of any incoming DMX or CV data that may appear on live dimmers even when a test mode is being used nual Channel Test Invoked by pressing the Manual Channel Test button this mode allows a radio dimmer channel to be manually faded up and down The channel is selected using the Left No and Right Yes keys The level is adjusted in real time with the rotary control In addition three levels of control resolution are provided coarse 25 step increments medium 5 step increments and fine I step increments Pressing the rotary control button cycles through these three options The Manual Channel Test screen indicates the control resolution c m or f current level 0 255 current rf dimmer channel and corresponding DMX or CV input channel and whether of not this channel will chase Yes or No The Chase parameter is used by the Channel Chase Test function described below It is toggled between Yes and No for the currently displayed rf channel by pressing the Select Enter key Escape test mode by pressing the Exit key Soundsculpture RC4 Operation Manual Page 12 of 41 Channel Chase Test RC4 TXD Series transmitters also feature a built in chaser ideal for testing a series of RC4 dimmer channels automatically and continuously The chase process smoothly fades up and down from zero to 255 and back to zero stepping through channels with the Chase parameter enabl
29. g system It can be used in small props costumes and anywhere else with limited space Just like the larger RX4 STANDARD and RX4 HO receivers the RC4 MINI provides up to four channels of dimming It is configured from an RC4 TXD Series transmitter just like the other RC4 receivers Summary of Differences Between the RX4 MINI and the RX4 STANDARD The block diagram from the RX4 MINI is nearly identical to the diagram for the RX4 STANDARD but it does not include auxiliary power inputs The circuit board traces in the RX4 MINI are narrower and cannot carry as much current To save space the MOSFET power drivers do not have heat sinks For both of these reasons the current handling of the MINI receiver is substantially less than other RC4 receivers Programming and diagnostics of the radio module in the MINI receiver requires a special 4 pin adaptor This adaptor is detailed later in this manual Most users will never need to configure their radio modules Because of a lack of space in the MINI receiver the radio antenna is mounted in one end of the enclosure below the cover Over long distances better radio performance may result when this end of the receiver is facing towards the transmitter rf tranceiver Over typical distances antenna position will have no affect on performance provided the antenna is not blocked by metal or batteries this is also true for other RC4 receiver models The antenna end of the enclosure is clearly m
30. ged Soundsculpture RC4 Operation Manual Page 31 of 41 Radio Settings Some RC4 system settings reside in the radio modules used at each end of the wireless link the transmitter transceiver and the radio boards in the receivers These settings are stored in EEPROM memory and do not require adjustment under normal circumstances Nonetheless it may some day be necessary to adjust a System ID or other parameter This is done using an RS 232 data terminal or terminal emulator software on a PC with a COM port When making changes to radio settings power and data connections must be made at the rear of the transceiver or receiver unit with the exception of the RC4 MINI receiver detailed later in this manual A 12VDC power adaptor along with a short 25 pin D Sub adaptor cable are required These items are supplied with your RC4 system but are rarely if ever used Do not attempt to change system settings while powering the receiver from the 10 pin RC4 power connection This powers both the radio board and the dimmer logic board and does not leave the radio board available for data on the rear 25 pin port The data cable observes RS 232 standards with data on pins 2 3 handshaking on pins 4 5 6 20 and common on pin 7 Readily available cables can be used if the supplied cable is lost or damaged Note that RC4 radios never require configuration under normal circumstances Set System ID The System ID is a number from 0 to 65535 V
31. he state of the SetRX button Soundsculpture RC4 Operation Manual Page 18 of 41 RX4 Receiver Operation RX4 Receiver Buttons and Indicators As noted in previous sections RX4 radio dimmer are configured and controlled remotely from a TXD Series transmitter using the transmitter s user interface This is the only Way to configure each output selecting the dimmer channel switch or dim mode and Low Level limit Inside the plastic receiver enclosure are two circuit boards the radio board and the dimmer board The RX4 receiver has a simple user interface intended to help with wiring and load testing and restoring internal settings to default values Various LEDs indicate the status of the dimmer and radio boards On the dimmer board there are five recessed push buttons four function LEDs and four additional LEDs directly connected to the four dimmer outputs From left to right the switches and function LEDs on the RX4 STANDARD and RX4 HO are Button Output 4 Test Output 3 Test Button Output 2 Test Power Up Load Default Settings Button Output 1 Test Assume RX Number of Incoming Setup Packet LED Setup Data Receive Indicator green LED Dimmer Level Receive Indicator green LED Computer Operating Properly COP Battery Voltage Indicator LED Data Error Indicator red Reset Button Hardware Reset System Restart Soundsculpture RC4 Operation Manual Page 19 of 41 Changing the RX Number To change
32. ications all of this can be done with a single 10 pin connector Please review the Receiver Operation section of this manual for pin out details and other information Output channel assignments are configured from the transmitter Radio and dimmer control electronics will not operate properly with less than 10V of incoming power This voltage must be maintained under load Choose appropriately sized batteries and keep them charged Soundsculpture RC4 Operation Manual Page 6 of 41 TXD Series Transmitter Operation The TXD Series User Interface Overview The TXD Series radio transmitter user interface consists of a 16 key keypad a 20 character x 2 line LCD display and a rotary control The rotary control can also be pressed as a button usually the equivalent of the Select Enter key Twelve of the keypad keys are used to select a function or function group The green keys invoke transmitter DMX channel assignment settings The yellow keys invoke receiver settings The blue keys are test functions The bottom 4 keys include Exit to escape any previously invoked function generic user interface functions Left No and Right Yes and the Select Enter key In some cases the screen will show a number of parameters on screen The Left No and Right Yes keys move the cursor between parameters and the blinking cursor indicates the parameter that is active for editing with the rotary control Th
33. ily and receivers are very sensitive This means that receivers can find good data most of the time The system will not work however if the tops of the plastic enclosures are blocked with batteries or metal coverings Signals must be able to get in and out of the top of each box both at the transmitter and at each receiver Solutions Make sure the top area of each plastic enclosure is not blocked by batteries or metal obstructions These block radio signals Small clusters of wiring gridwork bars across the top of the enclosures etc generally DO NOT cause problems Make sure there is a path for SOME signal to get through and the system should work fine Where quasi line of sight is attainable 1 Position the transmitter tranceiver overhead above the stage or other area where receivers are positioned The top of the transceiver should be facing down towards the receivers 2 Position receivers facing up towards the transmitter tranceiver Where line of site cannot be acheived or there are numerous obstructions between transmitter and receiver 1 Position the transmitter transceiver so the top of the box is facing the ceiling above the stage Signals will bounce back down and flood the stage Avoid metal obstructions or large harnesses of wiring in the signal path 2 Position receivers so the top of each box is facing the ceiling of the stage Reflected signals will bounce directly into the receiver antennas The R
34. immer above 25A With all 4 dimmers individually fused at 25A a total of 100A can flow At 12V this is 1200W substantially beyond the maximum rating of the product Continuous current exceeding 500W requires the RX4 HO receiver In any case be sure to use appropriate connectors and large wire gauges and monitor the system closely particularly the operating temperature at all times Here are some typical fuse values 75 watt MR16 halogen lamp draws 6 25A at 12VDC Use an 8A fuse 1 4HP 12VDC motor typically draws 20A when operated smoothly but could surge to 40A on a fast start up Use a 25A fast blow fuse and avoid rapid start up ramp up the power level slowly Do not use slow blow fuses They do not protect semiconductors in a fault condition I is difficult to apply typical safety standards to these devices because of the unusual circumstances of theatrical prop construction The rule of thumb is that nothing should be allowed to operate at a dangerous temperature Appropriately sized wire gauges and connectors must be used along with suitable ventilation and external fuses rated for the load being operated WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES RC4 devices are operated at the user s own risk and Soundsculpture accepts no liability either direct or consequential arising from the use of RC4 equipment Soundsculpture RC4
35. ing www digikey com or from Soundsculpture Incorporated Channels connected in parallel must have their channel select and Low Level limit switches set identically to avoid one channel taking a heavy load on its own Damage resulting from inappropriate configurations will not be covered under warranty WIRING AND INSTALLATION OF BATTERIES DIMMERS AND LOADS MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODE Soundsculpture RC4 Operation Manual Page 23 of 41 The RX4 STANDARD and RX4 HO high output receivers includes a 6 pin auxiliary power input connector Pins 1 3 and 5 are wired in parallel with pin 1 on the 10 pin connector This is V in Pins 2 4 and 6 are wired in parallel with pin 2 on the 10 pin connector This is GND in In some cases the 6 pin connector can be used for high power battery input while the 10 pin connector can be used just for outputs If all pins of both connectors are used eight wires are available for both power in and dimmer out This results in symmetrical current carrying capacity on both sides of the dimmers Some models of RX4 receiver include an optional 2 pin logic battery connection Pin 1 is positive pin 2 is negative This connector can be used as a 12V unregulated power output to external electronics or be used for a 12V lead acid battery or large storage capacitor This allows the logic and RF circuitry in the RC4 receiver to continue functioning
36. l power for a short slice of time 1 255 of 75Hz approx 52us at the lowest level and longer slices of time as power levels increase up to 255 255 fully on In some cases short spikes at the lowest levels are stressful for the dimmer and can create electrical noise and interference that is undesirable for both the radio dimmer and nearby equipment For example a large motor will remain stalled and a large lamp filament will remain cold and unlit until a significant amount of energy is delivered In these states large transient spikes are being generated 75 times each second The Low Level Limit parameter ensures that power levels below a selected limit are reduced to zero For large loads a recommended Low Level Limit is 15 15 255 For small loads a limit of 5 or less can be used The available range is 2 to 31 Low Level has no effect in switch mode details below Switch Mode In some cases dimmed power levels are not desirable When turning on a relay or powering a DC device that requires clean constant power a dimmer output can be set for switch mode In this case dimmer levels of 127 or lower will turn the output off while levels of 128 or higher will turn the output on Thus Low Level limits which are well below 127 have no effect in switch mode Normally even when using an output in dimmer not switch mode a DMX level of zero will turn the channel fully off and a DMX level of 255 will turn the channel fully on
37. mer for configuration press Select RX The block cursor will blink over the RX number on the transmitter LCD Use the rotary control to set the RX number As you scroll through RX numbers the transmitter looks for live receivers When it finds one an A is displayed beside the RX number on the transmitter LCD to indicate the presence of an Active receiver For any Active receiver at any time you can press and hold the Select RX button to display status information including the firmware version and current battery voltage If no Active receiver is found this is also reported OR Tt is not necessary to press Enter This is also true for all other receiver parameters BUT these values do not take effect until they are sent to a live dimmer unit Press Exit to return to Watch Channels mode NOTE Some receivers may contain customized firmware for special applications A specifie RXnum is required to activate these custom processes For example a custom dual motor speed control might be activated by using RX128 Customized receivers usually default to their special functions if defaults are loaded using the receiver s recessed buttons Refer to the documentation supplied with your customized receiver for additional information about your specific unit Soundsculpture RC4 Operation Manual Page 14 of 41 Set RX Channel Assignments Each RC4 RX4 radio dimmer has four outputs These outputs can be assigned to any rf control channel
38. ng through 512 DMX channels and 8 CV channels a total of 520 possible settings If the displayed channel is assigned to a radio channel the assignment is displayed To get to a distant numeric value more quickly the Left No and Right Yes keys change the currently displayed channel in increments of 10 channels up and down skipping the CV channels use the rotary control to select CV channels Soundsculpture RC4 Operation Manual Page 8 of 41 Set DMX Start Block of Contiguous Channels The quickest and easiest way to assign DMX channels to radio dimmers is to use a contiguous block of channels In this case only the first channel need be specified CV inputs cannot be assigned this way but can be added by editing individual assignments afterward more information below Press Set DMX Start select the desired first DMX channel with the rotary control then press the rotary control button or Enter key A series of contiguous DMX channels will now be assigned to radio channels and the display will confirm the range When first entering this mode the DMX channel currently being watched is displayed as the starting channel You may change this by turning the rotary control If the first DMX channel is set higher than 481 assignments will wrap around to channel 0 CV channels will not be assigned in this mode This action overwrites the current DMX channel assignments It does not affect saved DMX Setups Soundsculptu
39. other one operating nearby Solution Radio power and sensitivity of RC4 transceivers are tuned for good performance within most interior spaces with little chance of signals getting outside a building or into an adjacent building There is always a possibility however of interference between spaces within a single facility If you suspect there is another RC4 user within radio range change your radio channel At the time of this writing the need for such measures has never been reported by any RC4 user Reset and Initialize to Factory Defaults All transmitter internal memories can be cleared to factory defaults by powering on the unit while holding down the Set DMX Start and EXIT buttons together The LCD will ask you to confirm do so by pressing Right Yes WARNING This action overwrites all eeprom memory including DMX Setups and RX Configurations Soundsculpture RC4 Operation Manual Page 39 of 41 RC4 Specifications RC4 pecifications RF Channels 3 Transmit Power 13 dbm typical Sensitivity 96 dbm typical Frequency Channel 1 907 45 MHz Channel 2 914 81 MHz default used for most systems Channel 3 921 10 MHz Modulation FSK spread spectrum No Chips per bit 16 Bit Rate raw 76 8 Kb sec Protocol AX 25 Repeater 7 Range 300 feet typical indoors 3000 feet typical unobstructed outdoors RF Module Power Consumption 200mA at 12V DC Operating Temperature 0 to 50 C
40. re RC4 Operation Manual Page 9 of 41 Edit Individual DMX and CV Channel Assignments To create a more sophisticated channel map where assignments are not contiguous and or CV inputs are also used press the Edit DMX CV Assigns key In this mode the rotary control sets the DMX CV source while the Left No and Right Yes keys select the target rf channel When a desired combination is displayed press the Enter key or rotary control button to save the new assignment Only one source can be assigned to each target rf channel Similar to Watch Channels mode the rotary control will select CV inputs above DMX 512 and below DMX 1 This makes it easy to assign any of the 8 available CV inputs to any rf dimmer channel with the rotary control providing access to 520 sources 512 DMX channels and 8 CV channels HINT Use the Set DMX Start function detailed above to create a map that is close to what you need Then use the Edit Assigns key to add CV channels or otherwise adjust your channel assignments Soundsculpture RC4 Operation Manual Page 10 of 41 Save DMX Setup Note Current channel assignments are maintained even if you don t save them in a DMX Setup Save and Recall of DMX Setups is provided to facilitate switching between different channel maps you may need for different shows theatres etc Three DMX CV channel assignments can be saved in eeprom Each set of assignments is called a DMX Setup even though they may also include
41. rio Canada is available on request The RC4 RX4 Series receiver dimmers are capable of controlling very large currents at 12VDC They should not be allowed to operate at a dangerous temperature Appropriately sized wire and connectors must be used along with suitable ventilation and external fuses rated for the load being operated Additional information is provided in this manual Soundsculpture devices and equipment are operated at the user s own risk and Soundsculpture Incorporated accepts no liability either direct or consequential arising from the use of this equipment Soundsculpture RC4 Operation Manual Page 2 of 41 RC4 USER MANUAL TABLE OF CONTENTS Disclaimers Not For Use Where Human Safety May Be At Risk Not For Control of Pyrotechnical Devices No 3 Party Safety Certification RC4 20 System Overview Getting Started Setting Up RC4 Components lems You Do NOT Need to Get Started Parts of the RC4 System Transmitter Receivers 6 TXD Series Transmitter Operation 7 The TXD Series User Interface Overview 7 TXD Series Keypad Map 8 8 9 The Main Screen Watch Channels Set DMX Start Block of Contiguous Channels Edit Individual DMX and CV Channel Assignments 10 Save DMX Setup 1 Recall DMX Setup 1 Transmitter Channel Test Functions n2 RX4 Dimmer Settings Done at Transmitter Select Receiver RX Number Display Receiver Status Battery Voltage 14
42. sely followed and adequate ventilation must be provided Individual circuits must each be individually protected with fast blow fuses Can be used with small inductive loads with the addition of an external back EMF snubber diode Specifications subject to change without notice Soundsculpture assumes no liability or responsibility for safe operation of receivers dimmers batteries wiring fuses and or any other components or materials that may be connected or in proximity Safe operation of high current systems is the sole responsibility of the purchaser and or user Soundsculpture Solid State of the Arts Soundsculpture Incorporated 1 866 258 4577 upport theatrewireless com www theatrewireless com Soundsculpture RC4 Operation Manual Page 41 of 41
43. should occur regardless of electrical noise from nearby equipment Flying set pieces in the house area should also perform correctly via reflections off the stage floor ie the chandelier in The Phantom of the Opera Errors will generally not sustain more than 1 60th of a second the maximum amount of time before every channel has been reset by redundant data transmissions However if errors are caused by consistent multi path interference or insufficient signal level problems may persist or repeat The RC4 software protocol has been designed to be tolerant of the kinds of interference and interruptions that are typical of RF data links Moderate interference should not cause user detectable errors Soundsculpture RC4 Operation Manual Page 36 of 41 Troubleshooting The RC4 system is VERY tolerant of radio signal degradation and electrical noise Most users have no problems in fact at the time of this writing only one radio interference problem has ever been reported with an RC4 system and was corrected when the transmitter was moved away from an unusually noisy lamp If you think you are suffering from radio interference problems FIRST be absolutely certain your batteries are good Simple Solutions to Common Problems Problem When channel levels are brought up the load lamp motor etc operates for a brief moment then goes off A second or so later it comes back on The problem appears cyclical or intermittent Ca
44. uire special licensing for use anywhere in North America The TXD Series rack mount transmitter is a digital DMX device compliant with the USITT DMX512 1990 4uSec standard Eight 0 10V control voltage inputs are also provided using on board analog to digital converters Thirty two and sixty four channel models are currently available Up to 128 RX 4 receivers can be configured and managed from the transmitter providing up to 512 individual dimmers RX4 STANDARD receivers are for use with 12VDC battery power and provide four pulse width modulated PWM dimmer outputs each capable of delivering 150W into any kind of load typically halogen lamps Each dimmer can be individually assigned to any RC4 channel Outputs assigned to the same channel can be externally wired in parallel to drive large loads The total power handling of the RX4 STANDARD is limited to 500W by the capacity of the printed circuit board traces and connector pins components are substantially over rated to ensure a long life RX4 HO high output receivers are similar to standard receivers but have a higher power capacity thorough heavier copper on the printed circuit board a cooling fan and larger MOSFET components the power transistors that do the work Each HO dimmer can deliver 250 watts with a maximum power limit for the entire receiver of 1000W For small spaces the RX4 MINI is half the size of the other RX4 receivers Ideal for tiny props or hiding in
45. ure RC4 Operation Manual Page 20 of 41 Default Settings To restore receiver default settings hold down the recessed Test Out 2 Set Def button while powering up the receiver or pressing the recessed Reset button immediately to the left of the Data Error LED This will load the following settings RX Number 1 Output 1 Assigned to rf Channel Output 2 Assigned to rf Channel Output 3 Assigned to rf Channel Output 4 Assigned to rf Channel Dimmer Mode Lo Level Limit Dimmer Mode Lo Level Limit Dimmer Mode Lo Level Limit Dimmer Mode Lo Level Limit To change these settings send a new configuration from the transmitter It is likely that you will also need to restore the RX number to a value other than RX001 If so follow the procedure in the proceeding section NOTE Some receivers may contain customized firmware for special applications A specific RXnum is required to activate these custom processes For example a custom dual motor speed control might be activated by using RX128 Customized receivers usually default to their special functions if defaults are loaded using the receiver s recessed buttons Refer to the documentation supplied with your customized receiver for additional information about your specific unit This is NOT the protruding reset button on the rear of the radio which resets only the radio board Soundsculpture RC4 Operation Manual Page 21 of 41 Dimmer Power Wiring and Fusing WIRING AND INSTALLATI
46. use When a lead acid battery is measured with no load it reads approximately 12V This is true even for a substantially discharged battery RC4 electronics require very little current to operate and a discharged battery still provides enough power for the receiver to come on and indicate traffic Here s the problem cycle 1 When RF control data indicates an output level the output driver delivers battery power to the load If the battery is under rated or under charged voltage will drop substantially under load 2 When the battery voltage drops below 8V the RC4 receiver will shut down This disconnects the load from the battery 3 With the load disconnected battery voltage drifts back up It eventually drifts back up to 12V unless the battery is seriously damaged When battery voltage climbs above 9V the RC4 receiver comes back on and starts monitoring control data again And the cycle starts all over again In some cases exactly the same symptoms are caused by undersized wire or poor connections between the battery and the RC4 receiver These cause resistance resulting in a voltage drop at the receiver when the load increases Ohm s Law This cycle through steps 1 2 3 and back to 1 results in the symptom described The actual cycle time varies with battery size battery charge the size of the load power levels selected and wire sizes used Eventually the battery is damaged and fails to drift back up enough to continue
47. ver antenna is under the top surface of the case as indicated on the transceiver label The spread spectrum radios of the RC4 system will work through walls and other barriers to a distance of several hundred feet This range will be reduced however by the density of obstructions other radio tivity in the 907 921Mhz band and wide band interference generated by nearby lamps motors ete including loads connected to RC4 receivers themselves Line of sight from the transmitter transceiver to each RX4 receiver is great where possible but is not essential Soundsculpture RC4 Operation Manual Page 5 of 41 Connect a DMX source to the DMX input on the transmitter The RC4 TXD series DMX input is not terminated A terminated cable or in line termination connector must be used if termination is required i e the transmitter is at the end of the DMX line In general a 120 ohm resistor between pins 2 and 3 of a DMX connector will provide adequate termination Analog 0 10V control voltage CV inputs are also provided These inputs are indicated on the LCD as CVI to CVS with levels displayed similarly to DMX levels The input impedance of the analog CV inputs is 20K ohms It is best to drive these inputs with a low impedance source DMX and CV inputs can be mapped to dimmers in any combination and used simultaneously Receivers Each receiver must be set up with a charged 12V battery and up to 4 lamps or other loads For most appl
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