Gebruiksaanwijzing /service van het product RAC 104 van de fabrikant Extron electronics
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User ’ s Manual Remote V olume and T one Contr oller 68-782-01 Rev. C 12 08 RAC 104.
Precautions This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock.
RAC 104 • Introduction FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
ii RAC 104 • Table of Contents T able of Contents, cont’d.
RAC 104 • Quick Start Guide V O L U M E & T O N E C O N T R O L L E R 1 2 3 4 B a s s T r e b l e V o l . A D J U S T M E N T S A U D I O C O N T R O L S A B QS-1 T o install and set up the RAC .
RAC 104 • Quick Start Guide Quick Start Guide — RAC 104, cont’d QS-2 Step 4 If the RAC 104 is to be connected to a computer or host controller for remote contr ol, connect the host’s RS-232 cable to the RAC 104’ s 3-pole captive screw RS-232 connector .
TOC-i RAC 104 • Table of Contents Chapter 1 • Introduction .......................................................... 1- 1 About the RAC 104 ................................................................ 1- 2 Features ...........................
vi RAC 104 • Table of Contents T able of Contents, cont’d All trademarks mentioned in this manual are the properties of their respective owners. 68-782-01 Rev. C 12 08 TOC-ii Appendix A • Specifications , Part Numbers, and Accessories ..........
RAC 104 1 Chapter One Intr oduction About the RAC 104 Features.
RAC 104 • Introduction Introduction About the RAC 104 The Extron RAC 104 is a high-performance, four-channel remote audio controller that adjusts volume and tone for stereo or mono audio signals. Adjustments are made via the RAC 104’s front panel controls or through a device connected to the unit’s RS-232 connector .
RAC 104 • Introduction 1-3 Consumer and professional audio compatibility — Input and output line level can be set to consumer (-10 dBV) or professional (+4 dBu). Rack, furniture, and projector mountability — The RAC 104 can be mounted on an optional V ersaT ools or Universal rack shelf.
RAC 104 • Introduction Introduction, cont’d 1-4.
RAC 104 2 Chapter T wo Installation and Operation Mounting the RAC 104 Rear Panel Features and Cabling Front Panel Controls.
RAC 104 • Installation and Operation Installation and Operation Mounting the RAC 104 The RAC 104 can be set on a table or mounted on a rack shelf, under a desk or tabletop, or on a projector mount. UL rack mounting guidelines The following Underwriters Laboratories (UL) guidelines pertain to the safe installation of the RAC 104 in a rack.
RAC 104 • Installation and Operation 2-3 T abletop use Four self-adhesive rubber feet are included with the RAC 104. For tabletop use, attach one foot at each corner of the bottom side of the unit and place the unit in the desired location. Rack mounting For optional rack mounting, do not install the rubber feet.
RAC 104 • Installation and Operation Installation and Operation, cont’d Furniture mounting Furniture mount the RAC 104 using the optional MBU 123 mounting kit (Extron part # 70-212-01 ) as follows: 1 . Remove rubber feet if they were previously installed on the bottom of the RAC 104.
RAC 104 • Installation and Operation 2-5 Projector mounting Projector mount the RAC 104 using the optional PMK 100 pole mount kit (part # 70-217-01 ) as follows: 1 . Remove rubber feet if they were previously installed on the bottom of the RAC 104. 2 .
RAC 104 • Installation and Operation Installation and Operation, cont’d 2-6 Rear Panel Features and Cabling RA C 104 ON INPUTS OUTPUTS LINE LEVEL IN A B A B OUT +4 dBu -10 dBV Tx Rx RS-232 PO WER 12V 0.2A MAX A 12 B 34 A 12 B 34 4 1 3 5 2 1 Input connectors — Plug the audio input devices into these two 5-pole captive screw connectors.
RAC 104 • Installation and Operation 2-7 3 RS-232 connector — Plug an optional RS-232 device into this 3-pole captive screw connector . W ire the connector as shown below .
RAC 104 • Installation and Operation Installation and Operation, cont’d 2-8 Y our RAC 104 may have shipped with a blue captive screw connector . This blue connector can be plugged into either a blue or an orange power receptacle. T he ideal length of exposed (stripped) copper wire for the blue connector is 3/16" (5 mm).
RAC 104 • Installation and Operation Front Panel Controls V OLUME & T ONE CONTROLLER 1 2 3 4 BASS TREBLE VO L ADJUSTMENTS A UDIO CONTROLS A B RAC 104 2 3 1 4 1 Power LED — Lights to indicate that the RAC 104 is on.
RAC 104 • Installation and Operation Installation and Operation, cont’d 2-10 3 Adjustment selector button and LEDs — Press and release this button to select volume, bass, or treble adjustment. When an adjustment is selected, the corresponding LED lights.
RAC 104 • Installation and Operation For example, if the treble on channel 1 is set to 6 and the treble on channel 2 is set to 10, the unit will change channel 2’s treble setting to 6 when the user ties them together .
RAC 104 • Installation and Operation Installation and Operation, cont’d 2-12.
RAC 104 3 Chapter Thr ee Remote Control Simple Instruction Set Windows-Based Program Control Front Panel Security Lock Out (Executive Modes) Presets Mute.
Remote Control RAC 104 • Remote Control The RAC 104 can be controlled remotely via the RS-232 connector using the Extron Simple Instruction Set (SIS) or the Extron W indows-based control program.
RAC 104 • Remote Control Controller error responses When the RAC 104 receives an SIS command and determines that it is valid, it performs the command and sends a response to the host device.
Remote Control, cont’d RAC 104 • Remote Control 3 = group B, channel 3 4 = group B, channel 4 X3 = 0 or 1 0 = off 1 = on X4 = 0 through 14, bass adjustment range (+/-14 dB; 2 dB increment/decrement, bass in dB = [bass number minus 7] times 2; default = 7 [0 dB]).
RAC 104 • Remote Control 3-5 Command/response table for SIS commands Command ASCII Command Response Additional description (host to RAC 104) (RAC 104 to host) Audio input gain/attenuation Set gain (+dB) X2 * X1 1 G Chn X2 Gain X1 0 Set gain for channel X2 to X1 0 dB.
Remote Control, cont’d RAC 104 • Remote Control 3-6 Each of the four channels has three pr esets. The V iew Preset command response tells the user which presets for a particular channel have been used to save settings and which are empty . The r esponse consists of a sequence of three digits.
RAC 104 • Remote Control 3-7 Command ASCII Command Response Additional description (host to RAC 104) (RAC 104 to host) View Pr eset Settings V iew input gain X2 * X9 *5# X1 0 V iew output volume X2 .
Remote Control, cont’d RAC 104 • Remote Control 3-8 Commands can be made back-to-back with no spaces. Example 1*1!02!03*03!.. The RAC 104 supports the 2-digit numeric format (01*02).
RAC 104 • Remote Control 3-9 Command ASCII Command Response Additional description (host to RAC 104) (RAC 104 to host) V olume, Bass, and T reble Range Limit Settings Set volume lower limit X2 * X1 * 21 # Vll X2 * X1 Set volume lower limit for channel X2 to X1 .
Remote Control, cont’d RAC 104 • Remote Control 3-10 Windows ® -Based Program Control The W indows-based Extron Audio Pr oducts Control Program is compatible with W indows 2000 and W indows XP and provides remote control of the volume, gain, and tone adjustment, and other RAC 104 features.
RAC 104 • Remote Control Input/Output Level fields The Input Level and Output Level fields display the current settings for the line level selector DIP switches. See the chapter 2 section, “Rear Panel Features and Cabling”, for more information.
Remote Control, cont’d RAC 104 • Remote Control 3-12 Using the help system For information about program features, you can access the help program in any of the following ways: • From the Extr on Electronics program gr oup, double-click the Audio Products Help icon.
RAC 104 • Remote Control Front Panel Security Lockout (Executive Modes) T o pr event accidental changes to the controller settings, the front panel contr ols can be locked using one of two executive modes. The user turns the executive modes on and off using either the SIS or the W indows-based control pr ogram via the RS-232 connector .
Remote Control, cont’d RAC 104 • Remote Control 3-14.
RAC 104 A Appendix A Specifications, Part Numbers, and Accessories Specifications Included Parts Accessories.
RAC 104 • Specifications, Part Numbers, and Accessories Specifications, Part Numbers, and Accessories A-2 Specifications Audio Ga in ................
RAC 104 • Specifications, Part Numbers, and Accessories A-3 Input gain adjustment ................. –12 dB to +12 dB 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu. Audio output Number/signal type ................... 4 channels, which can be mono or tied into stereo pairs, balanced/unbalanced Connectors .
RAC 104 • Specifications, Part Numbers, and Accessories Specifications, Part Numbers, Accessories, cont’d Enclosure dimensions ................. 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide) 4.3 cm H x 10.9 cm W x 7.6 cm D (Depth excludes connectors and knob.
Ext r on’ s W a rr ant y E x t ro n E lec t ro ni cs warra nt s t h i s prod u c t a g a in s t defec t s in ma t er i als a n d workma n sh i p for a per i od of t hree years fr om t he da t e of p u rchase.
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