Solidyne HL 203-VQ User manual

Rev.
August
2021
TELEPHONE HYBRIDS
HL202
2, 4 & 6 lines
HL203 VQ
3 lines expansible up to 7 lines
User's manual
info@soli ynepro.com www.SolidynePRO.com
HL 203-VQ
HL 202

Page 2 Telephonic Hybri s SOLIDYNE

CONTENIDOS
About this manual......................................................................6
What's in the box?......................................................................6
About the montage.....................................................................6
AD ERTENCIAS.........................................................................7
1 O ER IEW.....................................................8
1.1 Main features........................................................................8
1.1.1 HL-202.........................................................................................8
1.1.2 HL203-VQ features......................................................................9
1.1.3 Bluetooth......................................................................................9
2 INSTALLING.................................................10
2.1 Power source......................................................................10
2.2 Connecting land-lines........................................................10
2.2.1 HYBRID BALANC .................................................................10
2.3 USING WITH CELL PHONES..............................................11
2.3.1 Wired cell phones in HL202 & HL203-VQ..................................11
2.3.2 Bluetooth wireless link (only models HL203-VQ).......................12
2.3.2.1 Linking the cell phone with the hybrid..................................12
2.3.2.2 Re-connections....................................................................13
2.3.2.3 Adjusting the volume............................................................14
2.4 AUDIO CONNECTIONS......................................................14
2.4.1 Connecting to a console using send/return for external Hybrid. 14
2.4.2 Hybrid send & return in consoles Solidyne 2300 series.............15
2.4.3 Recording output........................................................................16
2.4.4 Connection to consoles that have no external hybrid I/O (studio
and live show consoles).....................................................16
2.4.5 CU output................................................................................18
2.5 Expand the number of lines...............................................18
2.6 Priority system....................................................................21
SOLIDYNE Telephonic Hybri s Page 3

3 OPERATION.................................................21
3.1 Managing phone lines........................................................22
3.1.1 Return to phone line...................................................................22
3.1.2 Output level......................................................................23
3.2 Using Bluetooth (only HL203- Q).....................................24
3.2.1 Receive a calling........................................................................24
3.2.2 Calling on the air and calling in hold..........................................26
3.2.3 nd a call...................................................................................26
3.2.4 Power off Bluetooth....................................................................27
3.3 OICE QUALITY RESTORATION ( QR)............................27
3.6.1 Using the VQR...........................................................................27
Low band..........................................................................................28
Hi band.............................................................................................28
NOIS Control (expander)...............................................................29
How use this control.........................................................................29
4 TECHNICAL SPECIFICATIONS..................31
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About this manual
All rights reserved. All rights reserved. No part of this publication
may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying,
recording or otherwise, without prior written permission of Solidyne.
All mentioned trademarks belong to their respective owners and are
used for reference only.
What's in the box?
1 Solidyne hybrids model HL202/203-VQ according to
correspond..
1 power cable
2 s pports “L” for rack montage.
1 link cable (to link nits)
2 RJ-11 telephonic wires
4 self-adhesive r bber pads
1 Warranty certificate
1 ser man al
Please check that all components are okay when you receive
the packaging.
About the montage
Solidyne hybrids HL202 & HL203-VQ are designed to be mounted
into 19" standard racks. Require one unit (1U) of vertical clearance.
They can also be placed on a table, for which the supports are given
for rubber to adhere to the base of the unit.
When mounting the equipment into a rack, always use flat head
screws with washers flexible (plastic, rubber, etc.). Be sure to adjust
the screws lower and then higher to prevent the weight of the unit to
generate a lever arm on the upper corners.
SOLIDYNE Telephonic Hybri s Page 5

AD ERTENCIAS
AC
oltage
The unit cans wok with 110 or 220 VAC.
A voltage switch on the rear panel selects the
correspondent voltage.
ALWAYS CHECK THIS SELECTOR
BEFORE PLUG IN.
In order to reduce the risk of electrical shock, do not retire the
covers of the cabinet. The internal pieces do not re uire
maintenance of the user. Refer the technical maintenance to
ualified personnel.
El cable provisto con el e uipo posee conexión a
tierra. No lo reemplace ni use adaptadores.
ASEGÚRESE DE CONTAR CON UNA TOMA A
TIERRA CONFIABLE.
The exclamation icon within a triangle that appears
in this manual is intended to alert the user to the
presence of important instructions on the operation
and maintenance (servicing) of the e uipment.
The pencil icon that appears in this manual is to
alert the user to the presence of notes, suggestions
and examples about the operation.
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1 O ER IEW
The professional telephone hybrids Solidyne includes models
HL202, a high quality hybrid that manages two phone lines and
allows linking to expand its capacity up to 6 lines; and the HL203-
VQ, which incorporates VQR signal processing and Bluetooth link.
Both models supports conferencing between the floor speaker and
all phone lines, be they land-line or cell phones.
RJ11 connectors support landlines or cell phones connected by
cable, via speaker phone. The detection is automatic.
HL203-VQ supports Bluetooth to pair a cell phone without needing
special cables. The use of mobile phones for broadcasting was
extended because they produce substantial savings in telephone
communications, thanks to corporate plans and promotional rates.
VQR Solidyne technology (Voice Quality Restoration) allows
reconstruct the high and low frequencies that are lost in the
telephone transmission. The user can adjust the signal level
restored from two independent knobs for bass and treble. In
addition, VQR has a noise gate allows to obtain values of 70dBA
SNR in a telephone transmission. This allows modern radios,
aspiring to be digital quality transmission, can provide outdoor
sound quality not detract local sound generated at the Studios.
The stylish design of the hybrid HL203-VQ, and its technological
advances, makes it an excellent choice for radios that seek
differentiated by its technology.
HL203-VQ may be associated with one or two units HL202 to
increase the number of lines (5 and 7, respectively). HL-202 HL203-
VQ are presented in rack-mount cabinets, 1 unit high.
1.1 Main features
1.1.1 HL-202
•Expansible to 4 or 6 lines. Up to three units can be linked
to obtain a system with 4 or 6 telephonic lines (land line or
cellular). All lines are enabled to be in conference.
•100 % compatible with cell phones: phone line inputs
supports direct connection of cell phones. HL-202
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automatically detects to the cell phone and switch the input
from mode 2-paths (land lines) to 4-paths (cell phone).
•An audio compressor in reception equals the sound level
for all lines, as well as originating on phone lines of high or
low level.
•Audio limiter: The transmission channel to the remote
speaker, has a band filter to eliminate frequencies below
250 Hz and above 2.500 Hz, to limit the return of signal.
Also, a peak limiter at the filter output increase the
perceived loudness at the other end of the line, freeing to
the operator from the level controls of the on-air console.
•A Priority System reduces the level of the interviewed
people (the caller) when the local journalist interrupts them.
•The operation is very simple and error free, despite its
security's logical and automated control circuits.
•A Recording Output allows recording 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).
•Hold lines cue: An output brings the audio of all hold lines.
1.1.2 HL203- Q features
•Wireless link using Blue-tooth.
•VQR signal processing to improve the audio quality of the
phone calls.
•Expander-Gate at the audio output; to reduce the
background noise present in most telephonic
communications, since the norms for telephony requires
dynamic ranges of 40 to 50 dB; while FM broadcasting
requires 70 dB.
•Reception VU-meter, needle-type with back light.
1.1.3 Bluetooth
The HL203 supports audio transmission and reception using a cell
phone linked via Bluetooth.
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2 INSTALLING
2.1 Power source
The unit is connected directly to the AC outlet, using a standard 3-
prong power plug (AC-0106 type) provided with the unit. At the rear
panel, there is a 220/110 V switch, which must be manually settled
to the correspondent position. The unit have an on/off switch.
CH CK TH 110/220 SWITCH
B FOR PLUG TO AC OUTL T.
2.2 Connecting land-lines
On rear panel (see Fig.1) there are two pairs of connectors RJ-11
type (Line-1, Line-2), where the pone lines and their correspondent
telephones sets are connected.
Fig.1 - HL-202, panel trasero, sección conectores
The telephone set operates normally while the phone lines aren’t
taken by the hybrid (position OFF). The lines can be connected
directly to the public phone lines or the PBX of radio station. The
private lines deteriorate hybrid rejection, therefore, we recommend
connecting the console to public lines directly. The hybrid have
internal filters for RF rejection effective in AM, FM and UHF bands.
Usually you don’t need to add additional filters.
HL202 and 203-VQ have protection with SIOV varistors against
voltage overshoots caused by ligthnings; is recommended to
install an external surge suppressor for each phone line.
2.2.1 HYBRID BALANCE
Balance is adjusted when the local audio from Studios returns from
hybrid too high, ‘dirtying’ the voice on-air. This non-desired effect is
produced because some part of the signal sent to the telephone line
returns through the hybrid circuit, and mixes with the original signal.
SOLIDYNE Telephonic Hybri s Page 9

The hybrid's balance adjusts in factory using standard impedances,
but you must adjust it to the impedance of local line. Proceed as
following.
•On rear panel, the unit has two rotating presets of 15 turns
(BAL), one for each line.
•Using the correspondent telephone set, make a call to an
external number (don’t use extensions of private central)
•Use a microphone (connected to the console) to send audio
to the pone line.
•Send the microphone signal to the hybrid (e.g.: using the
S ND 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
console do not allows this, connect the headphones directly
to the balanced output of the hybrid.
•Turns the BAL preset until reach the minimum level on
headphones.
Proceed in the same way with the others lines.
2.3 USING WITH CELL PHONES
2.3.1 Wired cell phones in HL202 & HL203- Q
Both RJ-11 inputs supports cell phones. The cellular connects to the
hybrid using the “free hands” connection that the cell phones have.
For make this you need a special RJ-11 cable-adapter 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 cell phone and to check the user manual of the unit to make
the connection according to the diagram showed above.
Cell phone connects directly to “LIN /C LLULAR” RJ11. The hybrid
automatically detects the cell phone and changes the input mode
from 2-paths to 4-paths.
The cell phone transmits through the “free hands” connector the
audio signals: microphone and loudspeaker. The HL202/203
receives, via cell phone, the remote audio (that is to say, the audio of
who is at the other end of the line). On the other hand, the hybrid
sends to the cell phone the audio from the Studios (return signal).
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Usually the microphone and the loudspeaker at the cell phone are
disconnected when the phone operates in “free hands” mode.
Fig. 2 – Cell phone connected via hands-free connector.
2.3.2 Bluetooth wireless link (only models HL203-VQ)
HL203-VQ supports connection of a mobile phone via Bluetooth link.
Any phone with Bluetooth can be linked to the HL203-VQ, eliminating
dependence on the headset cable, which differs in each cell. Also
allows the cell to be located up to 10 meters away from the hybrid.
The Bluetooth wireless link provides better audio quality since the
signal remains digital from the cell phone to the HL203-VQ.
2.3.2.1 Linking the cell phone with the hybrid
By linking cell phones to the hybrid creates a link between two
devices, and allows the phone to remember the unique ID of the
HL203-VQ. Do you need to make this only the first time that use the
phone. Once the hybrid and the phone are linked, the hybrid
automatically connects to these phone when you enables Bluetooth
on both devices.
SOLIDYNE Telephonic Hybri s Page 11
Wiring used with
Samsung and others
brands that supports the
standard CTIA.
For OMTP standard
swap MIC with GND.

Procedure
1. HL203- Q: nables discovery mode. With Bluetooth
switched off (L D off) press and hold the button BLU T (5
seconds) until the L D flashes alternating between green
and red, indicating discovery mode. Being in this mode
HL203-VQ can be found by the cell phone.
To enable Bluetooth, press and hold the button BLUET by 2 seconds.
Release the button just when LED lights. Led will flash in green slowly,
indicating Bluetooth enabled. If you hold BLUET button more that 2 seconds
(5 sec approx) Bluetooth toggle to “discovery” mode (toggling green and red).
2. At the cell phone, search for Bluetooth devices. This
procedure varies by brand and model cell, see the user's
manual of the phone.
3. When the phone finds the HL203's device, shows the code
“BTH008” or “BTM751” on screen. When the phone asks for
the password, enter 0000 (default). See your phone's manual
for details.
4. HL203's ID is now stored at the cell phone's memory. You
don't need to repeat this procedure for this phone. In the front
panel of the hybrid, the light will change to green flashing
slow, indicating that Bluetooth is active.
In some cell phones, it is necessary to "connect" the new device found to
active it. In others, the new device is activated after being detected.
If there were other systems operating in the Bluetooth studios, we commend
turning off Bluetooth on the MB-2400, to repeat the search with the cell and
write-down the existing devices. Then turn on Bluetooth in the HL203 and
repeat the search. The displayed (BTH-008) will HL203.
2.3.2.2 Re-connections
To reconnect the cell phone before linked, activate the HL203's
Bluetooth pressing by 2 seconds the button, and enables Bluetooth
at the cell phone (if necessary, some cell phones disables Bluetooth
device when turn it off). To make or receive a call, the audio is sent
to the hybrid.
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2.3.2.3 Adjusting the volume
At the cell phone, Bluetooth volume must be adjusted at maximum
level in order to obtain a good reception and to sure the best signal
to noise ratio.
This adjusting must be done with a real calling using Bluetooth.
Usually, the volume of the phone's speaker is independent of the
volume of Bluetooth device. If you change the phone's level without
make a Bluetooth calling, you will only be changing the volume for
the phone's speaker, not the Bluetooth level. To change the
Bluetooth
level, make a call using the hybrid (or a hands free headset) and set
the Bluetooth level to the maximum. This setting is stored at the cell
phone's memory. If you use another cell phone with the hybrid, you
needs to set the Bluetooth level again.
To turn off HL203's Bluetooth, press and hold the Bluetooth button
until L D turn off.
2.4 AUDIO CONNECTIONS
2.4.1 Connecting to a console using send/return for
external Hybrid
If the on-air console have send and return to connect an external
hybrid, the connection is simple.
The output connects to HL-202/203 "Return from e ternal hybrid”
console (which is an input). Note that the output of the hybrid is
balanced.
To connect this output to an unbalanced input, leave unconnected
pin 3 (connect only: 1=gnd; 2=signal).
HL202/203 input connects to “Send to e ternal hybrid”.
This outpus is mix-minus , that is to say, is the PGM mix but without
the hybrid signal (the input “Return from hybrid”). This avoids
feedbacks loops. Note that the live show or studio consoles usually
don't have mix-minus outputs. For this cases, see connections in
“2.2.4 – Connection to studio consoles...”
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2.4.2 Hybrid send & return in consoles Solidyne 2300 series
The 2300 series consoles with master Solidyne 2307 provide
connection to send and return hybrid; through a stereo jack ¼" located
on the rear panel. In this way the external hybrid is also managed from
the hybrid's fader, avoiding having to use input channels for
connection of the hybrid.
You can ask Solidyne on purchase of hybrid, the cable to connect to
2300 console. Or you can assemble yourself. The cable will have a
stereo plug (TRS 1/4”) that connects two shielded cables (shield and
one conductor). One cable connects the tip to a mono plug (TS 1/4")
and the other one connects the ring to a female XLR. The following
table shows the connection.
“External hybrid”
connector in consoles
2300 (TRS 1/4”)
HL-202 / 203
Send to phone line
(plug mono 1/4”) Balanced output (female XLR)
Tip tip -
Ring - pin 2
Sleeve (GND) sleeve pin 1 (pin 3 n/c)
I/O connection to an external hybrid in Solidyne 2300 consoles. Stereo plug brings two
cables (Y-cable (shield and conductor; Belden type . See Figure 5 in page 19.
For Solidyne consoles of other models, and for consoles of others
marks, check the user's manual for send and return conections to
external hybrid.
If the console do not have conection Si la consola no tiene conexión
para envío/retorno de híbrido externo, el HL-202 deberá conectarse a
un canal de línea, como se explica más adelante.
In the console 2300, external hybrid signal is sent to the hybrid
control at Master module. See the manual for the operation console
with external hybrid.
Remember that the three-line hybrid built on consoles Solidyne 2300,
is kept working when you connect an external hybrid, able to work in
conference with internal and external lines (console with serial #
ending in "C").
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2.4.3 Recording output
The recording output mix the incoming signal from telephone line
and the hybrid's local audio ('Send to phone line' input). This
enables the recording of conference including the Studios. The
output level is fixed (0 dBu / 10Kohms).
2.4.4 Connection to consoles that have no external hybrid
I/O (studio and live show consoles)
In consoles that have no connection to send and return for external
hybrid, the hybrid will connect to a line channel. The output of
HL202/203-VQ (Output to console) is balanced XLR. This output must
be connected to a balanced line input on the console to send calls to
air (PGM)
To connect this output to an unbalanced input, leave pin 3
unconnected (connect only 1=GND; 2=signal).
Send to phone-line is the audio input of the hybrid, which receives
audio from console and sends it to the phone line. This input is
connected to a secondary output of the console, unlike the program
output (Aux, Rec, FX, etc). Logically, the channel through which the
hybrid signal enters, do not be assigned to the mix that is sent to the
hybrid (Aux, Rec, FX, etc) because it will produce a feedback loop.
Never use the program out to send audio to the hybrid, because
will cause a feedback loop when the hybrid's channel is sent to
the air.
SOLIDYNE Telephonic Hybri s Page 15

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2.4.5 CUE output
This output present the audio signal of HOLD lines, in order to the
journalist can notice to the operator when needed airing. This is the
case of a sports transmission in which a reporter covering a
secondary match, wants to report that there was a goal in that
game. If the operator has that line Hold, the reporter has no way of
giving notice, as the hybrid is in the air with the main relate, so
communication can not be established by the Talkback circuit.
To resolve this situation HL-202/203 has a "MONITOR" output,
which present audio from all HOLD lines. Thus the operator is
continually listening the Hold lines.
The output "MONITOR" uses a 1/8” jack to connect to a small
powered speaker, such as those used in computers, or an external
monitoring input on the console ( xternal (Audicom) CU in
Solidyne consoles).
In addition to the audio of the lines in Hold, is normal to
hear an audio remnant of on-air lines.
When HL202 units are connected in cascade, CUE outputs
remains independent. Each unit presents its CUE audio
output, correspondent to lines connected to that hybrid. If
you have only one monitor speaker for all lines, you can
connect CUE outputs in parallel.
2.5 Expand the number of lines
The connector HYBRID LINK allows to link up to three HL202/203
units to expand the number of lines. The options are:
2 x HL202 4 lines
3 x HL202 6 lines
HL203VQ + HL202 5 lines (one Bluetooth) with VQR audio
processing.
HL203VQ + 2 HL202 7 lines (one Bluetooth) with VQR audio
processing.
Figure 4 (next page) shows the connection cable for two and three
units, using male DB-9 at both ends.
Figure 5 (page19) shows the connection of 2 HL-202 units. Audio
connections can be made over any unit. Both units presents
simultaneously the audio signal at XLR connector; and both
receives audio frem console, no matter to witch unit the signal
SOLIDYNE Telephonic Hybri s Page 17

enters (Send to phone line). Therefore we recommend to connect
the audio to the same unit. When connects a HL203 and HL202,
audio connections are made over HL203.
You can make conferences between any lines, or between all lines
(land lines and cell phones).
CUE outputs are independent in each hybrid. Each CUE output gives audio of
the lines plugged to this unit.
All units can be connected to the AC outlet.
Figura 4 (cable link)
The cable for link two hybrids is included from factory.
Fig.5 – Next, a connection diagram for 4 lines with a Solidyne
2300-XL on-air console
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SOLIDYNE Telephonic Hybri s Page 19

2.6 Priority system
The hybrid priority's system attenuates the audio incoming from the
telephone line when the speaker speaks Studios. This is done for
two reasons:
•To give priority to the speaker in a debate, when they talk to
both at once, the speaker is on the caller.
•To improve the audio quality of the local voice, attenuating the
signal fails to reject the hybrid (in no analog hybrid the rejection
of sent signal is at all).
Be careful not to use background music at high level if the priority
circuit is enabled, as the background music will cause the
attenuation of the audio incoming from telephone line.
In conventional interviews and dialogues, the action of priority
system is natural and is not detected by the listener. However, in
some specific applications such as music competitions in which the
listener must guess the song title, by priority attenuation can cause
an undesirable effect by reducing the audio level of the phone line.
In these cases the priority can be disabled by removing an internal
jumper. Remove the top cover of the hybrid and remove the jumper
shown above. Once the priority is disabled, the level of the phone
line is fixed.
Page 20 Telephonic Hybri s SOLIDYNE
PRIORIDAD
Con puente de fábrica (activada)