HA 202/204

HA 202/204
VERSION 06
Telephone hybrid
User’s manual
3 de Febrero 3254 (C.P. 1429)
Buenos Aires - Argentina
Tel: +54 11 4702 0090
e-mail: [email protected]
Fax: +54 11 4702-2375
Web: www.SolidynePRO.com
Last revision of this manual: February 2007
SOLIDYNE
HA 202/204
Pág. 2
FEATURES
INSTALLATION & CONECTIONS
The Solidyne professional hybrid’s includes
the HA-202 which can manage 2 phone lines,
and the HA-204 (up to 4 lines).
POWER SUPPLY
With HA-204 you can make conferences
between a radio journalist and four telephone
interviewed people. The five peoples can be
in conference on the air.
Both models come assembled with metal
cabinets with supports for rack montage (1U
of height).
The hybrid is connected directly to the AC
wall outlet, using a standard 3-prong power plug
(AC-0106 type) provided with the unit. In the
rear panel, there is a 220/110 V switch, which
must
be
manually
settled
to
the
correspondent position.
CHECK THE 220/110 V
SWITCH POSITION
BEFORE CONNECTING
TO THE AC OUTLET
HA-202/204 hybrid’s design differences of the
conventional hybrids:
• An audio compressor in reception equals the
sound level for all lines, as well as originating
on phone lines of high or low level.
• The transmission level is controlled by an
audio limiter, increasing the loudness
perceived by the telephone interlocutor and
freeing to the operator from the level controls of
the audio console.
On rear panel (see Fig.1) there are four pairs
of connectors RJ-11 type (Line-1, Line-2,
Line-3, Line-4), where the pone lines and their
associated telephones are connected.
?
HA-202 only have two pairs of RJ-11 connectors (2
lines).
• A Priority System reduces the level of the
interviewed people (the caller) when the local
journalist interrupts them.
An associated telephone operates normally
while the phone lines aren’t taken by the
hybrid (position OFF).
• The operation is very simple and error free,
despite its security s logical and automated
control circuits.
The hybrid inputs have internal filters for RF
rejection effective in AM, FM and UHF bands.
Usually you don’t need to add additional
filters.
• A Recording Output allows to record the
conferences directly from the hybrid. This
output is a mix of the audio coming from the
phone lines and the hybrid s audio input (audio
from studio console).
CONNECTING THE TELEPHONE LINES &
ASSOCIATED TELEPHONES
Phone lines protection
• All phone line inputs support the direct
connection of cell phones, using an special
cable Rj-11 to Plug TRS 3/32 connected to the
free hands . The inputs automatically change
its mode from 2-wires (standard lines) to 4wires (cell phones).
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HA 202/204
We strongly recommend installing for all
telephone lines some protection device
against lightning and electrical surges.
SOLIDYNE
Fig.1
Rear panel HA-204
CONNECTING CELL PHONES
Cell
phone
connects
directly
to
inputs.
The
hybrid
automatically detects to the cell phone and
changes its input mode from 2 to 4 wires.
“LINE/CELLULAR”
The cellular connects to the hybrid using the
“free hands” connection that the cell phones
have. For make this you need a special cable
RJ-11 whose connection will depend on
the brand and model of your cell phone.
You will need to purchase the “free hands”
accessory correspondent to your cellular and
to consult the documentation of the unit to
make the connection according to the
following indications:
via cell phone, the remote audio (that is to
say, the audio of who is at the other side of
the line). On the other hand, the hybrid sends
to the cell phone the audio from the studies of
the radio (return signal).
Normally,
the
microphone
and
the
loudspeaker of the cell phone are
disconnected while “free hands” connector is
used.
AUDIO CONECTIONS
Connection using send and return
If your console has send and return connections for
external hybrids (as is the case of the Solidyne
consoles) the connections are easy:
• Output to console from HA202/204 is
connected to Hybrid s return on the console
(it s an input). Take in mind that HA has a
balanced output.
To connect Output to console to a unbalanced input,
leave pin 3 unconnected (1=ground; 2=signal).
• The HA input connects to the console’s output
“Hybrid’s send”.
?
This output is a mix-minus mix, that is to say, gives
the PGM mix without the hybrid s signal ( hybrid s
return is not added).
This way you don’s need to use a channel on the
console to send the hybrid on-the-air; since the
hybrid’s signal generally is routed through dedicated
controls (refers to the user’s manual of your
console).
Basically, which transmits the cell phone
through the “free hands” connector is the
audio signal of the cell telephone: microphone
and loudspeaker. The HA-202/204 receives,
SOLIDYNE
Send and Return connections on Solidyne
consoles
If you have a Solidyne console with the original kit of
cables (MNG2300), the Master’s cable has the
connectors for hybrid’s send and return. In case that
HA 202/204
Pág. 4
you require to add these cables to the Masters
DB25 connector, proceed as follows:
MONITOR output
This output gives the audio from the hold
lines, so that the reporter can warn the
operator in case that he requires to notify to
the air.
Example: in a sport transmission a reporter
covers a secondary match, and wants to give
report that a goal in that encounter took place.
If the operator has the line in “hold”, the
reporter does not have way to give warning.
For situations like that HA-202/204 provides
the output “MONITOR”, that gives the audio
one of all lines in “hold” (simultaneously). In
this way the operator always has audio of the
lines in HOLD.
MONITOR output uses a Jack 1/8” which
must be connected to a small powered
loudspeaker, like the “multimedia” speakers
used in computers. Or you can connect this
output to an external monitoring input of the
air console (see Audicom CUE in Solidyne
consoles).
Fig.2 - Send and return connections for Solidyne consoles (series
2300) For details and pin-out descriptions, see the users manual of
the console.
?
For other Solidyne consoles and of other marks,
consult the user manual about the conection of
external hybrid.
If the console has not dedicated send and return
connections to external hybrid, the HA202/204 must
be connected to a line channel, as is detailed soon.
?
The external hybrid will be routed to the
Hybrid fader on the Master module. Pleaser
refers to the user manual for the operation.
Remember that the built-in two lines hybrid
of the 2300 console is operative at the
same time that an external hybrid is
connected.
CONNECTION AS RECORDING HYBRID
ON THE AIR STUDY
The diagram of the figure 3 shows how to
connect the HA-202/204 to recording the calls
without these leave to the air. In this way you
can record a telephone interview while, for
example, a musical program is on the air.
RECORDING output
The recording out send the audio of the
telephone lines and the signal that incomes to
the hybrid from the console (‘Send to phone
line’
input),
allowing
recording
the
conferences including the studio’s voice. The
output level is fix at 0 dBu/10KOhms.
Pág. 5
In the previous example it is assumed that the hybrid
is on the air with the main communication, therefore
cannot contact to the caller using the monitoring
circuit (Talk-back in consoles Solidyne 2300).
CONNECTION TO OTHER CONSOLES
For this case is assumed that, the console
doesn’t have send and return connection for
external hybrid. The hybrid will be connected
to a line channel on the console. The
connections are showed in the Fig. 4
The ‘Output to Console’ (balanced XLR,
+4dBu) must be connected to a line input on
the console, to send the calls on the air
(PGM).
To connect Output to console to a unbalanced input, leave
pin 3 unconnected (1=ground; 2=signal).
‘Send to phone line’ is the hybrid’s input, and must
be connected to a secondary bus output of the
console (Aux, Send, Aud, etc.). Never send the
program (PGM) output to the hybrid, since it will
produce feedback loops when the hybrid is
on-air.
HA 202/204
SOLIDYNE
BALANCE ADJUSTMENTS
Balance (a.k.a. reject factor) is adjusted when the
voice from studio return’s is too high, ‘soiling’ the voice
on-air. This non-desired effect is produced because
some part of the signal sent to the telephone line
comes back through the hybrid’s return, mixing itself
with the original signal. Reject factor comes adjusted
from factory, but if you need to improve it for adapt it
to your line impedance, you will must to proceed as is
indicated next. On rear panel, the unit has two
rotating presets of 15 turns (BAL), one for each line.
• Using the associated telephone, make a call to an external
number (don’t use extensions of private central)
• Use a microphone to send audio to the pone line.
• Send the mike signal to the hybrid (e.g.: using the SEND
bus). If your console allows it, assign the output of hybrid
and the headphones to an independent bus (AUD) to don’t
interrupt the on-air program while this adjustment.
?
If the hybrid is connected using the console s send &
return I/O, probably you must need to adjust the
balance, sending a call on the air and listening how the
speaker s voice if affected when the hybrid is on-air.
Other alternative is: to make the call, send to the hybrid
the speaker s voice and to make the listening using a
headphone on hybrid s recording out, not being
necessary, in this case, to put the hybrid on-air.
• Turns the BAL preset until reach the minimum level on
headphones (or the better voice’s clarity if you are listening
direct and return signals simultaneously).
Proceed in the same way with the others lines.
OPERATION
HA-200 operation is very easy. All controls
are located in the front panel:
routed to the “output to console” connector, in
order to send the communication on-air.
The function OFF disconnects the line from
the Hybrid, connecting it to the associated
telephone.
When the operator does not use a telephone
line, the selector will have to be in the position
OFF, so the line is connected to the
associated telephone. Obviously, if during a
call this button is pressed and the telephone
is hanged, the communication will lose.
In order to transfer an on-air or hold calling to
the associated telephone, hang-up the
telephone first and then press OFF.
A LED on each line will indicate the line
status. When the line is hold, the LED blinks;
when is on-air the LED stays on and when the
line isn’t used (is assigned to the associated
telephone), the LED is off.
Output level
The HA202/204 has an output level control,
which controls the “output to console” level.
This control allows compensating the output
level in case a communication comes with
very low level, escaping from the compressor
action. A 2-LEDs indicator shows the level of
the output signal. The optimal output level is
achieved when program peaks lights the red
Led.
On the other hand, this control allows to
adjust the level on the air when the unit is
used with consoles whose hybrid’s return
doesn’t have level controls.
The buttons allows you to transfer each line to
the hybrid (ON AIR), hold with waiting signal
(HOLD), or to transfer the line to the
associated phone (OFF).
The call will be made using the associated
telephone. Once the call is established, press
the hybrid’s HOLD button and then hang the
phone. The function HOLD is used to retain a
call hanging the phone. In this condition, the
person interviewed listens, while is waiting,
the on-air programming.
To put on-the-air a call, press the ON-AIR
button. The audio of the phone line will be
SOLIDYNE
HA 202/204
Pág. 6
Fig.3 - Connection as Recording Hybrid on the Air Study
Fig.4 - Connection to consoles of others marks
Pág. 7
HA 202/204
SOLIDYNE
SOLIDYNE
HA 202/204
Pág. 8
TECHNICAL DATA
TECNOLOGY
Active hybrid, with automatic level for send
and return, self-adjusted by audio limiter and
AGC. Balanced telephone lines, floating
isolated with niquel-ferrite transformers.
Up to 4 phone lines in conference (HA-204)
with automatic controlled gain between lines.
AGC CONTROLL
Output to console with fixed level,
independent from the telephone line.
Controlled by AGC an audio limiter. A
variation of level of 20 dB on the telephone
line produces on the “output to console” a
variation smaller than 3dB.
PRIORITY SYSTEM
The speaker has priority to interrupt to the
interlocutor. When he talks, produces an
attenuation of 15 dB on the incoming audio.
NOISE LEVEL
S/N bigger than 70 dBA, tested with artificial
line of 2 Km
HIRBID REJECT
Bigger than 40 dB for a send level of +4dBu
@ 1 KHz. Tested with artificial line of 2 Km
REJECT ADJUSTMENT
Preset (15 turns), independent for each line. It
adjusts only when installs.
LINES ISOLATION
Independent, balanced and floating by
transformer. Isolation: 250 V / CA
POWER SUPPLY
220 / 115 V, 50/60 Hz. 5 VA
DIMENTIONS
19" Rack montage / 1U
SEND CHANNEL FILTERS
Filters to limit the bandwidth on the send to
TF (400/2200 Hz), to eliminate distortion due
to the return.
INPUT LEVEL
The unit has an audio limiter to operate with
input levels from –5dBu to +4dBu.
LEVEL OF SEND TO TELEPHONE LINE
(TF)
- 5 dBm +/- 2 dB, measured over the
telephone line
Output to console: balanced. Adjustable from
the front panel +4/+8 dBu
HIBRID RESPONSE
300 - 3.000 Hz +/- 0.5 dB IMPEDANCE: 600
Ohms/ 10 K for Send and Return
GAIN
Self-adjusted between 12 and 30dB
according to the level on the telephone line.
HARMONIC DISTORTION
Less than 0,2 % output to console @ 1 KHz
Pág. 9
HA 202/204
SOLIDYNE

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