TELEPHONE HYBRIDS Telephone Hybrids

TELEPHONE HYBRIDS Telephone Hybrids
T E L E P H O N E HYB R I D S
Telephone Hybrids - Contents
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Telephone Hybrids - Introduction
1
HY-03 - Series (Analogue)
2
DHY-03 - Series (Digital)
5
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Te l e p h o n e H y b r i d s - Co n t e n t s
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
T E L E P H O N E HYB R I D S
Telephone Hybrids - Introduction
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Telephone hybrids, or
telephone balance units (TBUs)
provide the interface between
professional audio equipment
and the public telephone
network.
They provide protection for your
equipment and the public telephone lines,
allowing for varying line signals and line
conditions. Automatically cancelling out
the unwanted signal they also facilitate
two-way communication down a single
telephone line.
be connected to the studio mixing console.
Most of the other units are supplied to
communication operations for allowing
extremely effective conversion between
4-wire audio circuits and standard
telephone lines.
A ringing detector can be used when you
need to answer a call automatically, for
instance, if a journalist files a report to a
tape recorder over a telephone line, the call
can be picked up after a set number of rings
by the ringing detector. Both the HY-03 &
DHY-03 have a built in ringing detector that
is enabled by one of the configuration
settings switches on the rear panel.
Each hybrid has a telephone line
connection, a handset connection and
separate terminals for audio input and
output from a broadcast mixer, or other
professional audio source.
A large proportion of Sonifex hybrids are
used in radio and television broadcasting
applications for allowing external callers to
Analogue or Digital ?
Sonifex offers two different hybrid units the HY-03 analogue TBU and the DHY-03
DSP based TBU.
The analogue HY-03 hybrid is suitable for
most general telephony applications and is
often used in radio and TV stations, dealing
floors and bingo halls. The HY-03 can be
used for any application where a clean
telephone signal is required and the line is
not subject to signal delay.
The DHY-03 offers near perfect
performance, using DSP power to
dramatically improve the unit's operation.
The DHY-03 offers the features of the HY-03,
but has some other benefits:
• Echo cancellation is possible and
distortion of other mixed signals is
greatly improved.
• Digital hybrids are more tolerant to
fluctuating line conditions and are
especially suitable for dealing with calls
that have a slight signal delay, for
example, satellite and conference calls.
The DHY-03 can recall signals from its
memory buffer and allow for these delays
without impairing performance.
Note that both of these products are
operating on analogue telephone lines,
not ISDN digital lines. The "analogue" and
"digital" refer to the processing used in
the units.
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Te l e p h o n e H y b r i d s - I n t r o d u c t i o n
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
1
T E L E P H O N E HYB R I D S
HY-03 - Series (Analogue)
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• Line limiter, bandpass filter and output
noise gate with preset threshold providing
low distortion crystal clear audio.
• 28dB typical line balance rejection.
• Built in power supply with switchable
115V, or 230V, mains input.
• BABT approval compliant with European
PTT specifications.
The analogue HY-03 telephone
hybrid is the replacement for
the HY-02, which for many
years has set the standard as an
excellent value, high quality
telephone hybrid.
Which Format Is Most Suitable ?
The HY-03 analogue hybrids are available in
three models :
The HY-03 retains many of the features of
the HY-02 and adds some additional ones.
Some of the features of the HY-03 include :
• Fully automatic - adapts to varying line
conditions and has automatic signal
limiting.
• Local and remote line hold switching calls can be remotely switched through
a mixing console.
• Momentary or permanent latching
remotes can be enabled.
• Balanced mic/line input - 10kΩ balanced
input selectable for 0dBu clean feed line,
or microphone level with adjustable gain.
• Balanced output - 0dBu low impedance
balanced output, with output gain
adjustment.
• Mixed output - the output can be a mix
of the caller and mic/line input signals for
recording both sides of the telephone
conversation.
• Integrated ring detector - automatic call
answering after a pre-determined
number of rings.
• Fitted with K-break disconnect detection
as standard with an option for dial-tone
disconnect (HY-03DTD option).
“
Each hybrid has a telephone line
connection, a handset connection
and separate terminals for audio
input and output from a broadcast
mixer, or other professional
audio source.
”
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HY-03 Single free-standing automatic
analogue TBU.
HY-03S Single 19" rack mounted automatic
analogue TBU with ringing detector.
HY-03T Twin 19" rack mounted automatic
analogue TBU.
Additionally, a eurocard size analogue hybrid
HY-02EC and ringing detector
RD-02EC are still available from the existing
HY-02 range. Eurocards are supplied
without a power supply, or casing, and are
therefore significantly cheaper than the
other units. The cards can be slotted into a
rack and located by the bracket at the front
of the card. They are mainly used in mixing
consoles, or other systems, which have been
designed specifically with slots to hold
eurocard equipment.
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HY- 0 3 - S e r i e s (A n a l o g u e )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
2
T E L E P H O N E HYB R I D S
HY-03 - Series (Analogue)
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HY03 - Front
HY03 - Rear
Single free-standing
automatic analogue TBU.
HY03S - Front
HY03S - Rear
Single 19” rack mounted
automatic analogue TBU.
HY03T - Front
HY03T - Rear
Twin 19” rack mounted
automatic analogue TBU.
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HY- 0 3 - S e r i e s (A n a l o g u e )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
3
T E L E P H O N E HYB R I D S
HY-03 - Series (Analogue) - Technical Specification
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“
Sonifex have manufactured
telephone hybrids for many years
and have a reputation for
quality combined with the highest
manufacturing standards.
Every stage in the manufacture
of Sonifex products is carried out in
purpose built head-quarters in the
heart of the UK, from initial design
to final test and delivery.
”
Audio Specification For HY-03
Input Impedance - Line Mode (Clean Feed):
Input Impedance - Microphone Mode:
Clean Feed Limiting Input:
Microphone Level Range:
Bandwidth to Telephone Line:
Telephone Line Impedance:
Telephone Line Impedance Range:
Output Impedance:
Output Level Range:
Rejection Ratio:
Ring Detector Sensitivity:
Power:
10k Ω balanced 0dB
200 Ω balanced
+4dBu
From 74dB to 40dB adjusted by preset pot
250Hz - 4kHz, -3dB ref 1kHz
Nominally 600 Ω
300 Ω to 1500 Ω
50Ω balanced floating 0dBu
+8dB to -14dB adjusted by preset pot
45dB on 1kHz tone, typically 28dB on complex waveforms, reference peak
level of 0dB
1 ring to 6 rings
230V 50Hz, or 115V 60Hz. 6W for HY-03.
Connections
Mic/Line Input:
Line Output:
Telephone Line:
Telephone Handset/Instrument:
Remotes:
Power:
XLR 3 pin female with push button mic/line selection
XLR 3 pin male
RJ11 6/4 socket
RJ11 6/4 socket
9-way D-type socket
IEC mains (CEE22)
Each unit is supplied with 1 x RJ11 to RJ11 telephone line lead, 1 x RJ11 to BT plug telephone line lead, 1 x BT handset socket
to RJ11 plug adapter, IEC mains lead fitted with moulded mains plug, handbook and warranty card.
Order Code
Description
Height
Width
Depth*
HY-03
Automatic analogue
TBU, free standing
Automatic analogue
TBU, 19” rack mounted
Twin automatic analogue
TBU, 19” rack mounted
4.5cm
21.8cm
17.5cm
Total Nett
Weight
1.25kg
Total Gross
Weight
2.0kg
4.5cm (1U)
48.3cm
(19” rack width)
48.3cm
(19” rack width)
17.5cm
1.30kg
2.1kg
17.5cm
2.60kg
4.0kg
HY-03S
HY-03T
4.5cm (1U)
*Depth is measured from the front to the end of the connectors fitted to the back of the unit.
Note: If you are ordering the HY-03 for use in the USA, add the word “US” after the product code. If you are using the HY-03
with the Broadcast Bionics PhoneBox system, then add the word ”BB” after the product code. The HY-03 uses different
circuitry for these systems.
Accessories
Order Code Description
HY-03DTD
Dial tone detect add-on board
HY-03CON
Front panel conversion kit, HY-03S 19" rack-mount front to HY-03 free standing
HY-03SCON Front panel conversion kit, HY-03 free standing to HY-03S 19" rack-mount front
HY-03TCON Front panel conversion kit, HY-03 or HY-03S, to HY-03T19" rack-mount front
HY-02EC
Eurocard version of HY-02 analogue TBU
RD-02EC
Eurocard version of ringing detector
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HY- 0 3 - S e r i e s (A n a l o g u e )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
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T E L E P H O N E HYB R I D S
DHY-03 - Series (Digital)
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•
The digital DHY-03 telephone
hybrid is probably the best
performing digital hybrid in
the world, with simply
stunning line balance rejection
figures. For the best sounding
audio calls you're likely to
hear, you should specify the
DHY-03.
The DHY-03 has the following features :
• Fully automatic - adapts to varying line
conditions and has automatic signal
limiting.
• Fully adaptive echo cancellation to
127msec - default is 24msec.
• 72dB typical line balance rejection
offering superb performance and crystal
clear audio.
• Front panel input and output gain
controls.
• Front panel LED metering of receive and
send signals.
• Built-in conferencing for 2 hybrids, so
that a single telco channel on a mixing
desk can receive 2 calls.
• Integrated ring detector - automatic call
answering after a pre-determined
number of rings.
• Automatic call disconnection. Fitted with
K-break, line polarity reversal and dial
tone disconnect detection, defined by
the country selection.
• Automatic ducking facility allows the
talent to 'shout-down', or talk over, a
caller by reducing the gain of the caller's
signal if it goes above a certain level.
• Local and remote line hold switching calls can be remotely switched through a
mixing console.
• Line hold/release button to control line
•
•
•
•
•
•
•
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hold circuit, illuminates to indicate the
status of the line and flashes to show
ring status.
DTMF tone recognition allowing a optoisolated GPI output to be made on receipt
of selected DTMF tones, e.g. for starting a
studio automation recorder automatically
to record a remote telephone interview.
International operation with built-in
configurable settings for each country.
Country selection allows the unit to
provide line impedance and a simulation
circuit to match the country.
RS232 serial port for remote control of the
TBU, DTMF tone dialling and firmware
upgrades to add new country settings.
Remote port distributes the remote line
connect switch and tally output, a
momentary/latch selector and the DTMF
detect output.
The remote line connect switch can be
either momentary or latching in its action.
Balanced mic/line input - 10k balanced
input selectable for 0dBu clean feed
line, or microphone level with
adjustable gain.
Balanced output - 0dBu low impedance
balanced output, with output gain
settings.
Record output - the conferencing output
can be set via a jumper to give a mix of
the caller and mic/line input signals for
recording both sides of the telephone
conversation.
• Line limiter, bandpass filter and output
noise gate with preset threshold
providing low distortion audio.
• Built in universal power supply between
90V AC and 250V AC, 47-63Hz, IEC
mains input.
• ETSI approval compliant with European
PTT specifications.
“
The digital DHY-03 telephone
hybrid is probably the best
performing digital hybrid in the
world.
”
Which Format Is Most Suitable ?
The DHY-03 analogue hybrids are available
in three models :
DHY-03 Single free-standing automatic
digital TBU.
DHY-03S Single 19" rack mounted automatic
digital TBU.
DHY-03T Twin 19" rack mounted automatic
digital TBU.
Additionally, a eurocard size digital hybrid
DHY-02EC is still available from the existing
DHY-02 range.
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D HY- 0 3 - S e r i e s ( D i g i t a l )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
5
T E L E P H O N E HYB R I D S
DHY-03 - Series (Digital)
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DHY03 - Front
DHY03 - Rear
Single free-standing
automatic digital TBU.
DHY03S - Front
DHY03S - Rear
Single 19" rack mounted
automatic digital TBU.
DHY03T - Front
DHY03T - Rear
Twin 19" rack mounted
automatic digital TBU.
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D HY- 0 3 - S e r i e s ( D i g i t a l )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
6
T E L E P H O N E HYB R I D S
DHY-03 - Series (Digital) - Technical Specification
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Audio Specification For DHY-03
Input Impedance - Line Mode (Clean Feed):
10kΩ balanced 0dB
Input Impedance - Conferencing:
10kΩ balanced 0dB
Input Impedance - Microphone Mode:
2kΩ balanced
Input Level Gain Range:
+6dB, 0dB, and -6dB adjusted by 3-position front panel switch,
+10db Jumper
Microphone Level Gain Preset:
From 65dB to 35dB
Maximum Input Levels:
Line +26dBu, mic -24dBu
Clean Feed Limiting Input:
-4dBu for CTR21 setting, other values available *
Bandwidth to Telephone Line:
250Hz - 4kHz, -3dB ref 1kHz
Telephone Line Impedance:
600Ω, 900Ω plus 14 other complex impedance circuits *
Output Impedance - Line Out:
50Ω balanced floating 0dBu
Physical Specification
Order Code Description
Height
Width
Depth*
Total Nett
Weight
Total Gross
Weight
DHY-03
4.5cm
21.8cm
17.5cm
1.4kg
2.2kg
Automatic digital
TBU, free standing
DHY-03S
Automatic digital
TBU, 19" rack mounted
4.5cm (1U)
48.3cm
17.5cm
(19" rack width)
1.45kg
2.3kg
DHY-03T
Twin automatic digital
TBU, 19" rack mounted
4.5cm (1U)
48.3cm
17.5cm
(19" rack width)
2.80kg
4.4kg
*Depth is measured from the front to the end of the connectors fitted to the back of the unit.
Output Impedance - Conference/Record:
50Ω balanced floating 0dBu
Output Level Gain Range:
+6db, 0dB, and -6dB adjusted by 3-position front panel switch
Accessories
Order Code
Rejection Ratio:
72dB on tones or complex waveforms, reference peak level of 0dB
DHY-03SCON
Ring Detector Sensitivity:
Off, 2, 4 or 6 rings
Front panel conversion kit, DHY-03 free standing to DHY-03S
19" rack-mount front
Power:
Universal 12W power supply: 90 to 250V AC; 47-63Hz; fused 1A
DHY-03TCON
Front panel conversion kit, DHY-03 or DHY-03S, to DHY-03T
19" rack-mount front
DHY-02EC
Eurocard version of DHY-02 analogue TBU
* These values are dependent on the actual country setting selected on the DHY-03
Description
Connections
Mic/Line Input:
XLR 3 pin female, with push-button mic/line selection
Line Output:
XLR 3 pin male
Telephone Line:
RJ11 6/4 socket
Telephone Handset/Instrument:
RJ11 6/4 socket
Conferencing or Record Audio:
RJ45 socket
Remotes:
9-way D-type socket
RS232 Serial:
9-way D-type socket
Power:
IEC mains (CEE22)
Each unit is supplied with 1 x RJ11 to RJ11 telephone line lead, 1 x RJ11 to BT plug telephone line lead, 1 x BT handset socket to
RJ11 plug adapter, IEC mains lead fitted with moulded mains plug, handbook and warranty card.
<< back to contents page
D HY- 0 3 - S e r i e s ( D i g i t a l )
6 1 S t a t i o n R o a d , I r t h l i n g b o r o g h , N o r t h a n t s , N N 9 5 Q E , U n i t e d K i n g d o m Te l : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 0 0 Fa x : + 4 4 ( 0 ) 1 9 3 3 6 5 0 7 2 6 E m a i l : s a l e s @ s o n i f e x . c o . u k I n t e r n e t : w w w. s o n i f e x . c o . u k
7
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