Gentner DH20 Communication Telephone Interface

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Description

Gentner DH20 Communication Telephone Interface

The DH20 is a high quality single-line and dual-line telephone interface, designed to interconnect a standard telephone line and your audio equipment, allowing you the ability to send audio to and receive audio from a connected telephone line. The DH20 and DH22 are ideal when the very best audio quality is required for talk shows, news feeds, production, recording studios, and internet applications.

Features:

  • Crystal clear, consistent audio quality
  • Continual adaptation to telephone line conditions
  • Selectable automatic mix-minus and caller automatic gain control (AGC)
  • 1W power amp with volume control on front-panel
  • Selectable mic/line level input
  • On/Off control via front panel and rear panel remote connection
  • Analog receive filter for telephone line noise reduction
  • Selectable caller control (ducking)
  • Balanced inputs and outputs
  • Auxiliary output for recording
  • Simple installation and operation
  • Adjustable send/caller audio level control
  • Selectable single-ring auto-answer and auto-disconnect

Specifications:

  • Caller Output: XLR male 0dBu nominal, adjustable, balanced, 50 Ohm impedance
  • Aux Output: XLR male 0dBu nominal, adjustable, balanced, 50 Ohm impedance
  • Telco Line:
    • RJ-11 connector POTS (plain old telephone service) line or analog extension from a PBX or dry line (no DC offset voltage).
    • A-Lead supervision provided
  • Telco Set:
    • RJ-11 connector
    • A-Lead supervision provided
  • Telephone Transmit: Nominal send input of 0 dBu referenced to -15 dBu onto the telephone line.
  • Frequency Response: 250 Hz to 3.5 kHz, +/-1dB
  • Signal to noise ratio: >56 dB
  • Distortion: <0.2%25
  • Telephone Receive: Nominal telephone line level of -15 dBu referenced to caller output of 0 dBu
  • Frequency Response: 250 Hz to 3.5 kHz, +/-1 dB
  • Signal to noise ratio: >56 dB
  • Distortion: <0.2%25
  • Remote: DB-25 Female
  • Remote Send Input: 0dBu nominal, adjustable, unbalanced, 20k Ohm impedance
  • Remote Caller and Aux Output: 0dBu nominal, adjustable, unbalanced, 50 Ohm impedance
  • Control Inputs: Remotely activate any of the following functions with a switch closure to ground: On, Off, and Monitor Mute
  • Status Outputs: Remotely check the status of the hybrid using the On and Off status outputs. Status outputs are open collector outputs rated at 30V DC and 40mA maximum
  • Monitor Output: Tip=+phase, Ring=ground, Sleeve=ground, 1W output into an 8 Ohm load
  • Send Input: XLR female Mic/Line selectable, -55/0 dBu nominal, adjustable, balanced, bridging, 20k Ohm impedance
  • Caller-to-Send separation: 50 dB nominal
  • Tail time: 32 milliseconds
  • Operating Temperature: 32-100Deg F/0-38Deg C
  • Humidity: 0-80 percent
  • Controls: On/Off Buttons
  • Volume: Up/Down Buttons
  • Status LEDS:
    • On Status, Off Status
    • Send Audio Presence
    • Caller Audio Presence
  • Power: IEC Type Auto Adjusting 100-240VAC, 2A, 50/60Hz, 30W. Power cable not included.
  • Send-to-Caller separation: 55dB nominal
  • Tail time: 32 milliseconds
  • Dimensions (LxDxH):
    • 17.125 x 10.125 x 1.75 inches
    • 43.6 x 25.7 x 4.44 cm
  • Weight:
    • 6.35 lbs./2.88 kg (dry)
    • 10.95 lbs./4.97 kg (shipping)

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