Extron electronics MVC 121 Plus Manuals

IMPORTANT: Go to www.extron.com for the complete user guide, installation instructions, and specifications. MVC 121 Plus • Setup Guide The Extron MVC 121 Plus is an audio mixer and volume controller that will mix up to two mono mic/line inputs (balanced/ unbalanced) with one stereo line level input (balanced/unbalanced). All audio input signals are converted from analog to digital prior to processing or routing. Each mic/line input and the line level input have their own gain control adjustment screws. The mixed variable output also features a volume control knob on the front panel. NOTE: For full installation, configuration, and operation details, see the MVC 121 Plus User Guide, available at www.extron.com. Rear Panel Features and Connections a 12 VDC power connector f Fixed output connector b Mic 1 and 2 Phantom power LED g RS-232 connector c Mic/Line input connectors (1 – 2) h Digital input connector d Line input connector (3) i Reset button e Variable output connector Installing the MVC 121 Plus 1. Disconnect power from all equipment. 2. (Optional) Mount the unit to a rack or furniture. 3. Connect the audio inputs. • Connect up to two balanced or unbalanced mono mic/line level input devices to connector c above (see the 6-pole wiring diagram on the right). Alternatively, two 3-pole connectors may be used. • A balanced or unbalanced stereo line level input may be connected to d above (see the 5-pole wiring diagram below). Balanced audio Tip Ring Tip Ring L R Sleeves Unbalanced audio Tip Sleeve Sleeve Tip L R Do not tin the wires! 4. Connect the audio output. • For variable balanced or unbalanced stereo output controlled by the front panel knob of the MVC 121 Plus, connect an amplifier to the Variable connector e, above (see the wiring diagram on the right). • For fixed stereo output, connect an output device to Fixed connector f (see the wiring diagram above). 5. Connect a control device. Connect a host device, such as a computer, to one of the following MVC ports to configure and control the MVC 121 plus via Simple Instruction Set (SIS™) commands. • RS-232 port (rear panel) — Connect a host device to the Tx, Rx, and _ (ground) pins of this 6-pole captive screw connector (g). The default baud rate for this port is 38400 baud, 1 stop bit, no parity, 8 data bits, and no flow control (see the wiring diagram on the right). • Config port (front panel) — See Front Panel Features on the next page. 6. Digital input connector. Up to three configurable input ports (see h on the rear panel diagram above) allow connection to various devices including motion detectors, alarms, buttons, photo (light) sensors, and temperature sensors. This connector shares a common ground with the RS-232 connector (see the wiring diagram on the right). Both the RS-232 and digital input connectors may be used simultaneously by using a 6-pin captive screw connector with two wires sharing the ground connector (see the diagram on the right). 1 2 MIC/LINE Balanced MIC Unbalanced MIC Jumper Unbalanced Stereo Output Tip NO GROUND HERE. Sleeve(s) Tip NO GROUND HERE. Balanced Stereo Output Tip Ring Sleeve(s) Tip Ring L R L R Left Right Left Right Do not tin the wires! Transmit (Tx) Receive (Rx) Ground (Gnd, ) RS-232 2 1 Tx Rx DIGI IN 3 Do not tin the wires! 1 2 3 _ RS-232 2 1 Tx Rx DIGI IN 3 2 1 +48V MIC 1 2 MIC/LINE LINE 3 L R R L POWER 0.4A MAX 12V RS-232 VARIABLE FIXED L R DIGI IN MVC 121 Plus Tx Rx 1 2 3 INPUTS OUTPUTS RESET 1 2 3 4 5 6 7 9 8 RS-232 DIGI IN Tx Rx 1 2 3

User Guide MVC 121 Plus Audio Products: Mixers and Processors Three Input Stereo Mixer with DSP 68-1937-01 Rev. C 01 19