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Contemporary Research 232-MCT Mono Caption Tuner
  • Contemporary Research 232-MCT Mono Caption Tuner
  • Contemporary Research 232-MCT Mono Caption Tuner

Contemporary Research 232-MCT Mono Caption Tuner

Item #: CRC-232-MCT   •   MFG #: 232-MCT


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The Contemporary Research 232-MCT is an economical RS-232/IR controlled video tuner featuring mono audio, 125-channel access in CATV, HRC, or IRC modes, closed captioning and intelligent control. Fully programmable, the unit can restore all settings on power-up from non-volatile memory. A list of accessible channels, called channel rings, can be stored in memory, used for convenient channel up/down control and to control direct access to unlisted channels. Switchable inputs for NTSC video and mono audio are included for display of PC graphics, a character generator information channel, camera or other A/V sources.

An onboard character generator displays on-screen text for closed captioning, channel names, and text from a custom control system. Full setup, control, and feedback is provided by RS-232. Up to nine 232-series tuners can be controlled from a single RS-232 port. In addition, remote tuning ring channel up and down operation can be accessed through contact closure inputs. Enjoy a full range of wireless control with the optional IC-RC IR Wireless Remote.

  • Features

    • Interacts with PCs and control systems via RS-232, using simple ASCII-format commands and feedback, up to 9 tuners can be linked to a single RS-232 control port; AMX, Crestron, or RTI modules available.
    • Tunes 125 channels CATV, HRC, or IRC modes, using true synchronous video detection and intercarrier SAW filter
    • Stores programmable tuning ring in memory to control channel access
    • Receives IR commands from front-panel sensor and wired IR input on the back, also responds to Sharp IR TV commands
    • Accesses tuning ring channel up/down from contact closure inputs
    • Displays closed-captioning text, on-screen channel names, and on-screen text from custom control systems
    • Inserts blue screen video image when unit senses loss of video level
    • Restores all operation status after loss of power from data stored in non-volatile memory
    • Mutes both audio and video, variable volume control
    • Switches between tuner and external A/V input (video and audio inputs, can convert stereo to mono)
    • Works with free Tuner Helper control panel/setup software, operates over RS-232 or Ethernet with IP-232 Interface
    • Mounts in 19" rack with optional RK1 or RK2 kit for dual side-by-side installation
    • Setup available via RS-232 using free Tuner Helper software, a Terminal application, or by custom system programming
    • Integrates with 232-AMP for educational applications, pole mount bracket available
    • Firmware updateable via local PC over RS-232
  • Specifications

    • Physical
    • Size: 8.5" [216mm] wide x 1.75" [44mm] height (1RU) x 6.0" [153mm] deep
    • Weight: 1.5 lbs [0.68kg]
    • Enclosure: All aluminum with durable black powder coat paint
    • Mounting: Rack mounting for one or two units side-by-side optional (RK1, RK2)
    • Front Panel
    • IR Sensor: Receives 57 KHz IR commands, CR mode 9 or Sharp TV
    • Power LED: Green LED behind IR window lights when power is on (AV unmuted)
    • Rear Panel
    • Power In: 2.1mm coaxial jack (inside center conductor positive), 350 mA maximum, 11.5 to 16.5 VDC, 12 VDC typical (may be unregulated)
    • RS-232 Control: DB-9 male connector, User selectable 300 to 9600 (default) baud, 8 data bits, no parity, 1 stop bit,
    • Employs standard ASCII strings from any terminal program, PC, or control system
    • Contact Closures: 2 momentary closure inputs in RS-232 connection- Channel Up (Pin 4), Down (Pin 9), GND (Pin 5)
    • IR In: 3.5 mm stereo input for external IR sensor or wired IR (no carrier),
    • Discrete codes available for power, TV channel and external AV selection
    • GND: Grounding lug
    • Antenna/Cable: 'F', female, 75 ohm impedance
    • AV Input: 1 RCA female NTSC composite, 2 RCA mono audio (mixes stereo input to mono)
    • Video Output: RCA female, NTSC composite, 75 ohm impedance, 1V peak-to-peak typical
    • Audio Outputs: 2 RCA female, mono 1K ohms, unbalanced, 1K ohm impedance
    • Maximum Level: +8dBu, (2V RMS), Reference: 0 dBu = .775 V RMS
    • Response: Total Harmonic Distortion (THD) 0.5%, 0.1% typical, 20Hz to 20KHz
    • Channel Separation: 25dB minimum, 30dB typical, 50Hz to 12KHz
    • Output Level: 500mV RMS typical output level
    • RF Tuner
    • Frequency Range: NTSC television 55.25 to 801.25 MHz, 62.5KHZ fine tune resolution
    • Maximum Input: +20dBmV max, +10dBmV nominal*
    • Video Gain: ±5% maximum, 2% typical
    • Video Phase: ±3 degrees maximum, 2 degrees typical
    • Internal Character Generator
    • Characters: ASCII Format: White text over video or white text with black background over video, up to 32 characters, 15 lines
    • Function: Closed captioning, channel labels, interactive menus, messages, and system feedback
    • Captioning: Modes CC1-CC4, TT1-TT4, On/On with Mute/Off modes, CG text times out to show captioning
    • Muting: Displays blue video image when loss of video is sense
  • Warranty

    • 2 Years

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