digital telephone hybrid product overview features

digital telephone hybrid product overview features
DH30
DIGITAL TELEPHONE HYBRID
PRODUCT OVERVIEW
FEATURES/BENEFITS
With the variety of phone systems in the
world today, it is becoming increasingly
difficult to have all callers sound the
same on-air. To help bring uniformity and
high quality sound to a broadcast talk
show environment, we have created the
DH30. The DH30 provides a high quality
interface between a standard telephone
line and your audio equipment.
Designed with both AES/EBU and analog inputs and outputs, the DH30 can
interface with the latest digital and analog consoles. To ensure quality sound in
studios that have open speakers and
microphones, the DH30 was created with
an acoustic echo-cancellation feature.
The DH30's digital signal processing
(DSP) has multiple adjustable parameters to provide you with the best send
and caller audio signals. New audio processing features such as the compressor
and downward expander functions ensure
that the best audio reaches your audience.
All audio processing features are programmable via the front panel controls.
For the deepest, most-reliable hybrid null,
and the best quality caller audio for your
application, DH30 is the answer.
Remote controllable presets
Easy to use and install, the DH30 has
simple front-panel controls and remote
control capability. These controls put the
ON, OFF, REC, and CUE functions right
at your fingertips. The DH30 also includes
a 2Watt monitor amp with volume controls right on the front panel. The REC
function sends a start/stop signal to your
external recording device. The CUE function allows you to control which audio
signal should be sent to the caller, allowing you to switch from the Send input to
the Cue input at the touch of a button.
Selectable auto mix-minus
Password protected
24-bit digital signal processing (DSP)
AES/EBU digital or analog audio
input and output
Record and Cue functions
Selectable acoustic echo cancellation
Selectable auto answer and disconnect
Integrated monitor amp with frontpanel volume control
Remote control via contact closures or
RS232
Adjustable caller control (ducking)
Adjustable three-band equalizer
Adjustable compressor and expander
Bass boost
Microphone send and cue preamps
Automatically accepts all worldwide
voltages
Three selectable presets for customized audio
Typical DH30 Digital Console Installation
Telephone
Line
Telephone
(Optional)
Worldwide compliant including FCC,
CSA, CE, CTR 21
Console In
Console Out
VOLTAGE RANGE 100V-210V
FREQUENCY 50Hz/80Hz
AES/EBU IN
SEND IN
AES/EBU OUT
MONITOR
RS-232
RECORD CONTROL
REMOTE
CUE IN
CALLER OUT
AUX OUT
TELCO
LINE
SET
Record
Control
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1.800.945.7730
1.801.975.7200
DH30
DIGITAL TELEPHONE HYBRID
SPECIFICATIONS
Front-Panel Controls:
LCD programming display,
ENTER/ESC/▲▼ programming buttons, monitor volume control, send-level
LED bar meter, caller-level LED bar
meter, record, cue, hybrid ON/OFF,
buttons with status LEDs
REMOTE:DB25 female
Remote Send input:
0 dBu nominal, adjustable, unbalanced,
20 kOhm impedance
Remote Caller and Aux outputs:
0 dBu nominal, adjustable, unbalanced,
50 Ohm impedance
Telephone Line Requirements:
Operates on standard telephone lines
and connects to the telephone system
with a standard RJ11C modular jack.
Selectable auto connect and auto disconnect with loop-drop and/or call
progress detection
Control inputs:
Remotely activate any of the following
functions with a simple switch closure
to ground: ON, OFF, CUE, and REC
along with preset selection controls
1,2, and 3 or with Send, Caller, and
Monitor Mute controls
Dimensions (W/H/D):
17"/43.2cm x 1.75"/4.5cm x 8"/25.4cm
Rack mount included for installation in
a 19” rack
Status Outputs:
Remotely check the status of the
hybrid with the ON, OFF, CUE, REC,
Send Presence, and Caller Presence
status outputs. All status outputs are
open collector outputs rated at 40 Vdc
and 50 mA maximum
Weight:
7 lbs./3.2 kg
12.1 lbs./5.5 kg (shipping)
Power Requirements:
100-240 Vac, 50/60 Hz, 30 W
Operating Temperature:
32-100 degrees F / 0-38 degrees C
Humidity:
0-80%
Connectors:
AES/EBU IN: XLR; pin 1=ground, pin
2=+phase, pin 3=-phase; 32, 44.1, or
48 kHz sample rate
AES/EBU OUT: XLR; pin 1=ground,
pin 2=+phase, pin 3=-phase; 32, 44.1,
or 48 kHz sample rate
RS232: DB9 female connector; 9,600
baud rate, used for status and control
via a PC or other RS232 controller
RECORD CONTROL: DB9 female
Start, stop, and enable outputs are open
collector outputs rated at 40 Vdc and
50 mA maximum
MONITOR: 1/4” stereo jack;
tip=+phase, ring=-phase sleeve=-phase;
2 Watt output into an
8 Ohm load
SEND IN: XLR female
Mic/Line selectable, -55 or 0 dBu nominal, adjustable, balanced bridging, 20
kOhm impedance, selectable 12 Vdc
Phantom Power
Line: RJ11 connector; A-lead supervision provided
SET: RJ11 connector
TELEPHONE TRANSMIT: (all measurements referenced at –15 dBm level
on the phone line)
Frequency Response: +/- 1 dB from
250 Hz to 3.5 kHz
Signal to Noise: >70 dB
Distortion: <0.15%
TELEPHONE RECEIVE: (all measurements referenced at –15 dBm level on
the phone line with caller processing
options bypassed)
Frequency Response: +/- 1 dB from
250 Hz to 3.5 kHz
Signal to Noise: >70 dB
Distortion: <0.1%
Echo Cancellation/Mix-Minus Tail Time:
120 milliseconds
Telco Cancellation Tail Time:
32 milliseconds
APPROVALS:
CUE IN: XLR female
Mic/Line selectable, -55 or 0 dBu nominal, adjustable, balanced bridging, 20
kOhm impedance, selectable 12 Vdc
Phantom Power
CALLER OUTPUT: XLR male
0dBu nominal, adjustable, balanced
bridging, 50 Ohm impedance
AUX OUTPUT: XLR male
0 dBu nominal, adjustable, balanced
bridging, 50 Ohm impedance
Send this document to any fax machine with Gentner’s Fax-On-Demand: 1.800.695.8110 Doc. #3014
Gentner Communications Corporation
1825 Research Way
Salt Lake City, UT 84119 USA
1.800.945.7730
1.801.975.7200
Fax: 1.801.977.0087
www.gentner.com
Perfect Communication through Technology, Service, and Education.TM
©1999 Gentner Communications Corporation. Printed in USA, 03/99. Features, specifications, and descriptions are
accurate as of this printing. Gentner reserves the right to modify this information without prior notice or obligation.
Try Gentner Conference CallSM—dial:
1.800.538.7633
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