ROTOR ROUTER DMX512 DIGITAL PATCH BAY OWNERS
Contents
1. and output connectors are 5 pin XLR style connectors as specified in the DMX512 standard terminal block and three pin XLR connectors are optional Plug the DMX512 signal sources into the male connectors Plug the DMX512 receivers into the female connector The mating connector for the input is a 5 pin female connector such as the Switcheraft model ASF or Neutrik model NCSFX The mating connector for the output is a 5 pin male connector such as the Switchcraft model ASM or Neutrik model NCSMX When viewed from the rear of the unit the inputs are installed right to left input 1 is the rightmost connector input 2 is to the left of input 1 input 3 is to the left input 2 etc This way the connectors are in the same order as the indicator LEDs when viewed from the front DMX512 Standard Pinouts 1 Common 2 Data Complement Data 3 Data True Data 4 Auxiliary Data No Connection 5 Auxiliary Data No Connection OPERATION The Rotor Router Input Module has no operator controls The Rotor Router Output Module has one twelve position rotary switch associated with each output The switch is rotated to select one of the twelve input signals to drive the associated output For example if a moving light console is plugged into input connector number seven and the fixture to be controlled by that console is plugged into output number eleven then the rotary switch associated with output eleven should be set to seven Each module h2. male Neutrik D 1 series terminal connections optional Output circuit EIA 485 transmitter with 60 ohm series source termination DMX512 signals on a non standard connector Output connector DB 25P Output module Input circuit EIA 485 receiver A termination plug is required if the output module is separated from the input module by more than six feet Input connector DB 25P Output circuit EIA 485 transmitter Output connectors Gold plated 5 pin female Neutrik D 1 series terminal connections optional DB 25 pinouts input 12 3 4 5 6 7 8 9 10 11 12 data pin 2 3 4 5 6 7 8 9 10 11 12 13 data pin tt 14 15 16 17 18 19 20 21 22 23 24 25 pin I is circuit common Common specifications Isolation 2500 volt optical coupler 1500 volt split bobbin transformer Power input 100 120 volts 50 60 hertz 12 watts 208 240 volt optional Size amp Weight 1 74 high 19 wide 12 deep 9 pounds SETUP AND CONNECTIONS The Rotor Router is designed to be rack mounted in a standard 19 equipment rack Each Rotor Router module is one rack space high Plug the Rotor Router s line cord into a grounded electrical outlet The unit requires between 100 and 120 volts 50 or 60 hertz It requires less than 1 10 amp 12 watts It should be grounded for maximum electrical noise isolation and safety The earth ground is connected only to the chassis All circuitry is isolated from the chassis and the power cord s ground pin The input
3. ROTOR ROUTER DMX512 DIGITAL PATCH BAY OWNERS MANUAL Doug Fleenor Design 396 Corbett Canyon Road Arroyo Grande CA 93420 805 481 9599 revision 1 0 May 2000 TABLE OF CONTENTS Product Description Specifications Setup and Connections Operation Line Termination Technical Details Troubleshooting About the Company Warranty PRODUCT DESCRIPTION Doug Fleenor Design specializes in customizing so your particular unit may differ in some respects from the product described in this Owner s Manual This manual will describe the standard product and call attention to common customized features The Rotor Router is a DMX512 distribution system featuring up to 12 inputs and an unlimited number of outputs A system typically consists of an input module and one or more output modules Both modules are 1 7 h x 19 w x 12 d and are normally rack mounted A plexiglass security cover is included to prevent accidental switch changes The input module features 12 optically isolated DMX512 inputs on 5 pin XLR connectors terminal block connections are optional Each input has two front panel indicators power and signal The input module feeds the twelve DMX signals to up to thirty output modules or more on special order via a 25 pin D connector DB 25P All connections and the power cord are on the rear panel The output module features 12 optically isolated DMX512 outputs on 5 pin XLR connectors terminal block connections are optional E
4. ach output has two front panel indicators power and signal and a front panel twelve position rotary switch to select from one of twelve inputs The output module receives the twelve DMX signals from the input module via a 25 pin D connector DB 25P All connections and the power cord are on the rear panel When rack mounted the 25 pin D connectors on the input and output modules line up in a vertical column a 25 conductor ribbon wire assembly joins the modules When input and output modules are in different locations 12 pair 120 Ohm data cable is used to connect the modules Each module has its own power cord Split modules may be ordered on a custom basis that have mixed inputs and outputs in a single chassis Such a unit can have any combination of up to twelve inputs outputs For example 3 inputs 9 outputs pictured above 6 inputs 6 outputs 11 inputs output etcetera The Digital Multiplex Combine Unit is an interface device which combines multiple DMX512 lighting control signals into a single DMX512 output The standard product compares the level for each dimmer from the various inputs and sends the higher level This method of combining control signals is often referred to as pile on or highest takes precedence Customized software to provide other functions is optional SPECIFICATIONS Input module Input circuit EJA 485 receiver with 120 ohm termination resistor between Data and Data Input connectors Gold plated 5 pin
5. apacitor filters the rectified AC and a 7805 regulates it down to 5 volts All the parts used in the power supply section except the transformer are available at most electronic parts stores including Radio Shack The transformer is a Signal part number LP 20 300 This is available from Signal phone number 516 239 5777 or from Doug Fleenor Design phone number 805 481 9599 Microprocessor The microprocessor circuit uses a PIC18C242 The processor s program is held internally to the microprocessor so even if you could find a replacement PIC18C242 it would not work until programmed Replacement microprocessors are available from Doug Fleenor Design MAX483 The MAX483s are the input and output buffers The inputs and outputs are protected against damaging voltages up to 120 volts continuous and 15 000 volt transients They are unlikely to fail If the 483 is not available a more common pin compatible circuit is the SN75176 The 75176 may be used in an emergency however it will cause the power supply to run hotter and does not have the slew rate limiting feature of the 483 6N137 The 6N137 is the optical isolation circuit Although they are not available at Radio Shack the are fairly common and are probably carried by larger electronic supply stores HPR100 The HPR100 is a 5 volt in 5 volt out DC to DC converter The 5 volts in is converted to AC run through an isolation transformer then converted back to 5 volts DC Thus the out
6. as twelve optical isolation circuits within the chassis Each isolation circuit has its own power supply so there are twelve POWER indicators on the front panel All power indicators should be on when the module is plugged into AC power Each optical isolation circuit has a SIGNAL indicator When an isolation circuit is configured as an input DMX512 signal coming into the Rotor Router from a console the signal indicator will illuminate when a digital signal is detected When an isolation circuit is configured as an output DMX512 signal coming out of the Rotor Router to control a DMX512 device the signal indicator will illuminate when the rotary switch is set to an input that is receiving a digital signal NOTE The signal indicators on the Rotor Router indicate the presents of a digital signal not necessarily a valid DMX512 signal LINE TERMINATION The Rotor Router has internal 120 ohm termination on each input The outputs of the Rotor Router require termination only when connected to a DMX512 device The terminator should be placed on the feed through connector of the final device on each output line Unused Rotor Router outputs do not need to be terminated WARNING Removal of the termination resistors should only be done in rare specialized cases Please call Doug Fleenor Design if you have questions TECHNICAL DETAILS For those technical types out there here is a brief description of how the DMX512 combine unit works DMX512
7. ication of EIA 485 The DMX512 Combine Unit uses the MAX483 as receivers and transmitters The MAX483 was designed specifically to meet EIA 485 The DMX512 signals from the consoles are applied to the input connector of the combine unit These are received by MAX483 s and fed through optical isolators 6N137 to individual microprocessors PIC18C242 Each input has its own microprocessor as does the output The microprocessors all exchange data over an 8 bit bus The output microprocessor sends the combined DMX512 signal to a MAX483 which generates the differential output The main 5 volt power supply consists of two step down transformers connected in parallel a bridge rectifier a 2200 uF filter capacitor and a 7805 5 volt regulator Up to six DC to DC converters provide isolated 5 volt power for the isolated DMX512 inputs TROUBLESHOOTING We hope your DMX512 combine unit never needs service Ifit does the information presented here may be of assistance Access to the inside of the unit is accomplished by removing four top cover screws and removing the top cover There is a 1 2 amp fast blow fuse inside the unit If the POWER indicator does not illuminate when the line cord is plugged in check the fuse Board Level Troubleshooting Notes Power supply The entire combine unit runs on 5 volts This is generated by stepping the line voltage down to 10 volts AC which is rectified by a I amp bridge rectifier circuit A 2200 uF c
8. put is the same voltage as the input but the two sides are electrically isolated This in conjunction with the 6N137 above enable the isolated DMX512 inputs to function ABOUT THE COMPANY Doug Fleenor Design is a design and manufacturing company specializing in products that use and support DMX512 Doug Fleenor Principle Engineer has been designing for the entertainment industry since 1979 He spent the years from 1984 through 1990 as Teatronics Chief Engineer During this time his work on advancing multiplex control consoles dimmers and systems earned him the nick name Doctor Mux which over the years has evolved to Doctor DMX Doug Fleenor Design continues to provide solutions to multiplex control problems as well as designing custom and semi custom control and dimming systems WARRANTY Products manufactured by Doug Fleenor Design carry a five year warranty If the product breaks within one year of manufacture Doug Fleenor Design will repair it It is the customer s responsibility to return the product to Doug Fleenor Design at the customer s expense Doug Fleenor Design will repair the unit and return it to the customer at Doug Fleenor Design s expense If a trip is necessary to the customer s site to solve a problem the expenses of the trip must be paid by the customer
9. uses a differential digital signal A differential signal is a pair of signals which are inverse from one another That is when one is high the other is low Differential signals are common in both analog processing balanced microphone cables and digital processing digital communications such as EIA 485 Differential signals are used to reduce the effect of electrical noise on long cable runs When a differential signal is processed by the receiving circuit microphone pre amp or EJA 485 receiver for example the noise can be eliminated but the signal remains Differential signals always travel in pairs and the wires on which they travel are usually twisted to insure any noise picked up is of equal magnitude on both wires The noise must be of equal magnitude on each wire so that the receiving circuit can effectively subtract the noise and leave the signal The pairs of signals are usually denoted by a plus sign on the normal or hot or true line and by a minus sign on the inverted or return or complement line The differential signals on the combine unit are Data and Data DMX512 is a standard for lighting control published by the United States Institute For Theater Technology The DMX512 standard specifies that the electrical properties of the signal comply with a standard published by the Electronic Industries Association EIA 485 or RS 485 Many manufacturers make integrated circuits that meet the input and output specif
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