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Oxmoor Corp. - DCA-2T
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Digital Control Attenuator, Unbalanced

Model: DCA-2T

  • Supports 4 channel
  • 600m maximum cable length
  • Single-pole switch or open collector transistor (128 mA capacity), dry closure to logic ground
  • Daisy-chained connection via looping jacks
  • 6-wire modular telephone type RJ-11/12
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The Oxmoor DCA-2 Digital Control Attenuator and one or more RC-16 Remote Control units together constitute a unique, high-quality system for the re-mote control of audio level. The DCA-2 is a compact (1-3/4” high) rack mountable package that can control two discrete audio channels (90 dB of isolation is provided for two unrelated programs) or the two channels can be linked to control a single stereo pro-gram. Multiple DCA-2s can be linked, and up to 64 discrete channels can be controlled in a single chain with 1/4 dB tracking tolerance between channels.

Designed for professional applications, the DCA-2 is equipped with XLR-type input and output connections. Additionally, Channel A and B maximum gains can be adjusted ± 15 dB from the nominal unity gain of the system via recessed, front-panel controls. Maxi- mum cable length from the DCA-2 to the farthest remote is approximately 2,000 feet.

The Oxmoor system includes a number of unique features. A Preset control on the DCA-2 rear panel sets the degree of attenuation on power up, avoiding an unpredictable or unknown turn-on state. One or both channels can be switch-reset back to this “Preset” level at any time. Another rear panel control, labeled “Prior-ity,” sets a level to which the system can be temporarily forced by an external switch closure. Each RC-16 remote has terminals for preset and priority functions.The switch itself is not included.

The DCA-2T outputs are transformer balanced. Either system is capable of driving 600 ohm or higher imped- ance loads; maximum output is +18 dBm terminated, +20 dBu unterminated.

  • Supports 4 channel
  • 600m maximum cable length
  • Single-pole switch or open collector transistor (128 mA capacity), dry closure to logic ground
  • Daisy-chained connection via looping jacks
  • 6-wire modular telephone type RJ-11/12
  • Multiplexed display refreshed at line frequency rate by serial data burst
  • One of 16 concentric light-emitting diodes (LEDs) is illuminated as a virtual pointer
 
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