Sonifex - DHY-02 Digital Telephone Balancing Unit

Sonifex DHY-02 Digital Telephone Hybrid

DHY-02 TBU


The DHY-02 uses digital signal processing to achieve superb results and is the best "value for money" hybrid that you'll find when comparing technical performance. It is also fully automatic with echo cancellation to 28msec and includes bar graph metering of send and receive signals. The DHY-02 series perform exactly the same function as the analogue units, but have some additional benefits.

  • Echo cancellation, over long-distance calls, is improved and distortion of other mixed signals is greatly reduced.
  • Digital hybrids are more tolerant to fluctuating line conditions and are especially suitable for dealing with calls that have a slight delay, for example, satellite calls. The DHY-02 can recall signals from its RAM buffer and allow for these delays without impairing performance.

  Telephone Hybrids Specifications
HY-03 ANALOGUE HYBRID
DHY-02 DIGITAL HYBRID
Clean Feed Input Line
10Kohm balanced 0dB
10Kohm balanced 0dB
Clean Feed Limiting Input
+4 dBu
<+4 dBu
Bandwidth to Telephone Line
250 Hz -4kHz,-3 dB ref 1kHz
250Hz - 3.5kHz, -3dB ref 1kHz
Telephone Line Impedance
Nominally 600 ohm
Nominally 600 ohm, reactive
Telephone Line Impedance Range
300 ohm to 1.5 K ohm
300 ohm to 1.5 K ohm
Output
Balanced floating 0dBu 10 ohm
Balanced floating 0dBu 50 ohm
Rejection Ratio
Typically 28 dB
Typically 69dB ref +8dB
Power
220V - 240V 50 Hz
220V - 240V 50 Hz

  Physical Dimensions
Height
Width
Depth
Weight Kg
DHY-02S** digital rack mount single
4.5cm (1U)
48.3cm (19" Rack fitting)
23.8cm
2.9
DHY-02T** digital rack mount twin
4.5cm (1U)
48.3cm (19" Rack fitting)
23.8cm
3.4
DHY-02EC digital eurocard
13.5cm (3U)
8 E
17.4cm
0.2

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27 Cavendish Road, Salford, M7 4WP, England.
Telephone: +44 (0)161-740 7171
Facsimile: +44 (0)161-792 9595
E-mail: info@jingle.org