JTS IT-12 User manual

IT-12M4 V2.0 / IT-12D Ver_2.1
59508-065-02

INTERPRETATION
IT-12D Ver_2.1
IT-12M4
SYSTEM
User’s Manual

Important Notice
• All the safety and instructions for operation and use of the equipment should be read carefully
before the system is operated.
• Please keep this user manual for future reference.
• Please follow all the operation instructions.
• Cleaning: Make sure to turn o the power supply before cleaning. Use a dry so cloth to clean
the equipment.
• Don’t leave the product in a place with high humidity and temperature.
• Do not use any accessory, which is not recommended by the manufacturer .
• Do not place the equipment on an unstable stand; Please use appropriate package or original
package by the manufacturer before transport to avoid damage caused by strong shake during
transporting.
• Adequate ventilation is good for the maintenance of the equipment.
• Power supply AC 100-240V.
• Hot swapping is prohibited.
• Total 3 sets of IT-12D can be connected in one system. e cumulative cable
length should not exceed 30 meters. For particular requirement, please contact
the nearest JTS Service Centre for information.
• For service, please contact the nearest JTS Service Centre. Do not take the equipment apart by
unauthorized personnel.
• All JTS products are guaranteed for 1 year except for the cases as follows caused by personal
reasons:
A : Damage or malfunction caused by personal factors such as dropping, striking and so on.
B : Damage or malfunction caused by improper handling of the operator.
C : Parts loss or damage by taking apart by a unauthorized personal.
• Only use JTS tailor-made cables to connect the system.
• Turn o the power supply and unplug the equipment from the power supply in case the
equipment is not in use for a long time.
• Upon receipt of the product, please ll out the Warranty Card enclosed and post it to JTS
Service Centre nearby in your region.

TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:To prevent fire or shock hazard,
do not expose units to rain or moisture
CAUTION: To reduce the risk of electric
shock, DO NOT open covers, no useable
serviceable parts inside. Refer servicing to
qualified service personnel only
This label may appear on the bottom of the unit due to space
limitations.
The lightning flash with an arrowhead symbol,
with an equilateral triangle, is intended to alert the
user to the presence of uninsulated dangerous
voltage within the products enclosure that may be
of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation mark within an equilateral
triangle is intended to alert the user to the
presence of imporyant operating and maintenance
(servicing)instructions in the literature
accompanying the appliance.
Attention: Installation should be performed by qualified
service personnel only in accordance with the National
Electrical or applicable local codes.
Power Disconnect: Units with or without ON - OFF
switches have power supplied to the unit whenever the
power cord is inserted into the power source; however,
the unit is operational only when the ON - OFF switch
is in the ON position. The power cord is the main
power disconnect for all units.

1. System Introduction
2. Product Introduction
2-1 Language Distributor // IT-12M4
2-2 Interpreter Console // IT-12D
2-3 Accessories
3. System Installation & Connection
3-1 General Description
3-2 System Connection // Connection Cables
3-3 Connection of Audio Cables
3-4 System Mounting Instructions
4. System Setup & Operation
5. Technical Data
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15
INDEX
Remark:
JTS Company reserves the right to modify any issue without notice in advance.
If any detailed information needed, please contact the local agent or JTS distributor in your region.
JTS is the registered trademark of JTS Professional Co., Ltd.

1
1. System Introduction
•e JTS IT-12 interpretation system consists of IT-12M4 and IT-12D.
•e IT-12M4 works as main unit to provide power, input and output interface, and control.
•e IT-12D is an interpreter console allowing two interpreters work together. Interpreters can
choose either oor channel for original language for direct interpretation or relay interpretation
available via the relay select key.
• For small venue crossing interpretation is available here.
•e whole system supports 3 interpreter consoles for simultaneous interpretation and delivers 4
languages to audiences.
•e product is a stand along system. It is compatible with any conference system. So no maer
a new installation or an existing project needing expansion with interpretation IT-12 can easily
meet the requirement.
• Together with JTS wireless system and any infrared system more audiences can participate in a
conference.

INTERPRETATION SYSTEM
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2-1 Language Distributor // IT-12M4
2. Product Introduction
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COMBO socket microphone input: is COMBO socket provides +48V Phantom
power to a microphone with balanced XLR or unbalanced φ6.3 connector. e input
signal will be mixed with the Original (CH0).
Gain: Adjust input sensitivity of the COMBO socket. e adjustable range is ±10dB.
Interpreter channel indicator: Light-On to indicate the correspondent channel is active.
Flashing to indicate the correspondent channel is standby.
Signal level indicator: the brightness of this LED indicates the signal level of the correspon-
dent channel.
Power Switch: Push the”│” on this switch will be turn system on, and push the”○” on
this switch will turn system o.
DC power input: To connected the 12V /1A power adapter that included in package of
IT-12M4 from JTS . Don’t used other spec power adapter insead.
Interpreter console interface (D-sub 25pin socket):3 interpreter consoles can be
connected in daisy chain (IT-12D).
Record IN connector (RCA): external signal from play back devices will be mixed with
the Original (CH0) for recording.
Record output connector (RCA): Connect to recording equipment. e original signal
(CH0) mixed with REC. IN will be recorded.
Original (CH0, oor channel) output (RCAx2/symmetrical output) : Original (CH0)
balanced output with RCA connecters.
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INTERPRETER’S CONSOLE
DC15V
500mA
ORIGINAL INPUT
GNDSLOW
OUT
ALARM
IN
IT-12M4

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4CH audio output interface: #0 to 3 correspond to the Original (CH 0) and 3 sets of
Interpreter Consoles. Signals are for distribution to audiences via JTS wireless systems.
Notice: any channel not in use will be assigned with CH0 as input.
Original (CH0) volume control: is potentiometer adjusts the Original (CH0)
sensitivity. Adjustable range is ±10dB.
Original (CH0) input socket: is φ6.3mm balanced connecter is connected to an
output of a conference system or PA as the original signal of the interpretation system.
Alarm sound input:φ6.3mm jack / unbalanced input.
Slow output: When a Slow Key on the IT-12D is activated this Slow output will generate
an 1 sec. pulse to request the lecturer to slow down.
Alarm control input: A short cut of Alarm Ctrl. and GND will activate alarm procedure.
All channels will receive alarm signal, and indicator LED will change from Light-On to
Flashing.
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INTERPRETATION SYSTEM
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2-2 Interpreter Console // IT-12D
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REC OUT MIC IN EARPHONE
A
MIC IN REC OUT
B
EARPHONE
INPUTMIC INPUT
+48V PHANTOM POWER
MIC INPUT
+48V PHANTOM POWER
SET
OFF ON
OUTPUT
ENTER
COUGH CUTMIC.A ON/OFF MIC.B ON/OFFCOUGH CUT
VOLUME A MONITOR
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MONITOR
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11 VOLUME B
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MICROPHONE OUTPUT CHANNEL
SLOW
ORIGINALRELAYRELAYORIGINAL
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ENTER key : At Lock Mode to set the active channel of interpreter console. When
switch on Switch the ENTER indicator starts ashing. Aer push one of the selectable
channels (from CH1 to CH11 with Light On) this active channel can be stored to this
interpreter console by pushing the ENTER key. en switch o the Switch to end
the procedure.
At OPEN Mode to clear the active channel of interpreter console. when interpreter want
to close all channel of this interpreter console , then push the ENTER key to close active
channel. In this time , all of channel indicator are o like power on initially state .
CH1~CH11 Channel Output Key:
• MODE switch at LOCK position: Under seing state, press it to select a selectable chan-
nel (indicator on) for interpretation output. Only 1 channel can be set in one Interpreter
Console. e indicator of the activate channel is in green.
• MODE switch at OPEN position: All of channel indicator are o when power on
initially. All channels are open to interpreter as long as it is not occupied by others. When
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MODE
LOCK OPEN
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the channel is activated the Channel Output Key is in green. e indicator ashes in red
which means this channel is in use by others.
Note: MIC. ON/OFF at OFF state, the activate channel will be released
when this channel number on other interpreter console is selected.
Relay interpretation monitor (MONITOR): Aer pressing RELAY key, an interpreter
can turn the monitor rotary knob to select an interpreted language he/she can
understand to interpret.
Headphone volume control (VOLUME A, VOLUME B): To adjust the volume of the
headphones.
Relay interpretation switch (RELAY): In case the interpreter doesn’t understand the
original language, they can press the key and switch Monitor to another interpreted
language from other interpreter for further interpretation.
Floor Channel Switch (ORIGINAL): When the system start, the seing is by default,
press it to listen to the original language (the speech from CH0).
Mute Key (COUGH CUT): In case the interpreter coughs. Keep pressing the key to
mute the line, meanwhile the indicator is on. When released, the line returns to working
status.
MIC ON/OFF buon (MIC.A ON/OFF, MIC.B ON/OFF): Press it to turn the
microphone on, the indicator will be on. Press it again to turn o the MIC.Only one
microphone can be on at a time. MIC. A and MIC. B will override each other.
Reminder key (SLOW): In case the delegate speaks too fast for the interpreter to follow,
press it to request the delegate to slow down.
MODE seing switch (OPEN / LOCK): e MODE switch needs be decided before
power on. At the OPEN mode an interpreter can activate any channel in any time as long
as it is not occupied. All channels are set o at the initial state, then an interpreter must
select channel key which he wants. At the LOCK mode the interpreter can choose only
one output channel which will not be taken by other users (seing procedure refer to
step and “System and Operation” chapter for more detail).
Seing switch (SET): When all Interpreter Console are connected, seing of a channel
of each console is needed for rst time installation at LOCK mode. First turn the Switch
to “ON”, the ENTER key will start ashing. According to above Step No.20 to select one
channel for the console. en turn the Switch to “OFF” to nish the channel seing.
To starting the channel seing procedure just turn the seing switches (SET) from “OFF”
to “ON”. Finish the channel seing procedure by turn the seing Switch from “ON”
to “OFF”.
XLR microphone input: Each interpreter unit including 2 balanced XLR microphone
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INTERPRETATION SYSTEM
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input sockets with +48V Phantom power. ese balanced microphones will be mixed
with MIC. A/B.
Input interface (INPUT): to connect the rst Interpreter Unit to the IT-12M4 and the
second one to the Output interface of the rst unit (25-pin socket).
Output interface (OUTPUT): for connection with the next Interpreter Unit (25-pin
plug).
Recorder interface (REC OUT): φ3.5mm stereo, for connection with a recorder to
record the interpretation. (Available on both le and right side of the Interpreter
Console).
Microphone input (MIC IN): φ3.5mm dummy stereo, for connection with
microphone(Available on both le and right side of the Interpreter Console).
Earphone output (EARPHONE):φ3.5mm stereo, for connection with interpreter
headset (Available on both le and right side of the Interpreter Console).
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2-3 Accessories
Accessories are standard parts for a complete system installation, general description are
as follow:
(1) IT-12-C3: 3 meter cable with D-sub 25-pin M/F on each end.
• Used to connect Interpreter Console (IT-12D) in daisy chain and to IT-12M.
• Connecters: 1 Plug, 1 Socket.
(2)HPM-12 : Multi media Headset( headphone with microphone)
Earphone:φ3.5mm stereo.
One set bundled with IT-12D for monitoring and interpretation.
• Hi-Fi quality, ergonomic design for long time fatigueless wearing.
• 33Ωx2, φ3.5mm stereo jack x 2(Green: Earphone jack; Orange: Mic. Jack)
Microphone
• Unit:φ6x5mm
• Frequency Range: 30-16000Hz
• Sensitivity: -58±3dB
• Impedance: ≤2.2KΩ
• Standard Operating Voltage: 3.0V

INTERPRETATION SYSTEM
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3-1 General Description
3. System Installation & Connection
IT-12 Interpreter System has a compact dimension and is easy for installation. IT-12D
interpreter consoles are connected in daisy chain and the rst IT-12D is connected to the
main unit IT-12M4.
A detailed description of IT-12 Interpreter System installation and connection will be
given by diagrams and examples in this chapter.

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3-2 System Connection // Connection Cables
All consoles are connected via D-Sub 25-pin cable. A 25-pin 3 meter cable (with a plug
and a socket) is included in each IT-12D Interpreter Console to connect the interpreter
unit to Main Unit IT-12M4 or to each other. On the rear panel of IT-12D there are two
D-Sub connecters, the “INPUT” is a plug and the “OUTPUT” a socket. Connect the
plug from the 25-pin cable to the Main unit IT-12M4 then the socket from the 25-pin
cable to the plug “INPUT” on the rst Interpreter Console. And then connect the plug
of the second 25-pin cable to the socket “OUTPUT” of the rst Interpreter Console and
the socket is connected to the plug “INPUT” of the next Interpreter Console. en all the
interpreter units are connected in daisy chain. As many as 3 interpreter units can be
connected for 4 languages (including oor channel) interpretation. Extension cables can
be used between Interpreter Consoles and Main Unit IT-12M4 (IT-12-C3/C6/C12/
C18).
It is strongly recommended to use JTS tailor-made cables to ensure the best performance.
ENTER
COUGHCUTMIC.A ON/OFF MIC.B ON/OFFCOUGHCUT
VOLUME A MONITOR
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MONITOR
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11 VOLUME B
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MICROPHONEOUTPUT CHANNEL
SLOW
ORIGINALRELAYRELAYORIGINAL
ENTER
COUGHCUTMIC.A ON/OFF MIC.B ON/OFFCOUGHCUT
VOLUME A MONITOR
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MONITOR
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11 VOLUME B
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MICROPHONEOUTPUT CHANNEL
SLOW
ORIGINALRELAYRELAYORIGINAL
ENTER
COUGHCUTMIC.A ON/OFF MIC.B ON/OFFCOUGHCUT
VOLUME A MONITOR
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MONITOR
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MICROPHONEOUTPUT CHANNEL
SLOW
ORIGINALRELAYRELAYORIGINAL
CH1
CH2
CH3
IT-12M4

INTERPRETATION SYSTEM
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3-3 Connection of Audio Cables
Cable connection plays an important role in the long distance audio transmission.
Improper connection will result in interference. For example:
(1)Connection for Unbalanced to Balanced transmission cable:
Practical example: aer the audios from signal source of mono RCA output, they go
through to the IT-12M4 balanced input “LINE IN” (φ6.3mm jack) via unbalanced
output.
GND(SHIELD)
shielded net
BAL. + OR UNBAL.HI.
BAL. - OR UNBAL.LO.
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* Note: is connection is not applicable to Balanced to Unbalanced transmission.
Otherwise, the signal source of balanced output may be damaged.
A jack: Signal source(unbalanced output)
A jack: Signal source(unbalanced output)
B jack: Reception(balanced intput)
B jack: Reception(balanced intput)
The cable can be as long as 200M
φ6.3mm jackRCA jack
φ6.3mm jackφ6.3mm jack
Audio signal cable(doubl-core shielded cable)
Audio signal cable(doubl-core shielded cable)
(2)Connection for Balanced to Balanced transmission cable:
Practical example: Aer the audios from wired and/or wireless microphones are
mixed via the mixer, they go through to the IT-12M4 balanced input “LINE IN”
(φ6.3mm jack) via balanced output.
The cable can be as long as 200M

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(3)Connection for Unbalanced to Balanced XLR transmission cable:
Practical example: the recording output of IT-12M4 “REC. OUT” (unbalanced output)
to PA system or media recording input XLR interface (balanced input).
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A jack: Signal source(unbalanced output) B jack: Reception(balanced intput)
RCA jack XLR connector
Audio signal cable(double-core shielded cable)
The cable can be as long as 200M
* Note: is connection is not applicable to Balanced to Unbalanced transmission.
Otherwise, the signal source of balanced output may be damaged.

INTERPRETATION SYSTEM
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IT-12M4
3-4 System Mounting Instructions
IT-12M4 Main unit Installation
(1)Dimension (LxWxH):421 x 213 x 44mm
(2)Colour: Silvery black
(3)Weight: 2 Kg
(4)“L” shape rack mount bracket for 1U 19-inch standard cabinet.
(5)Mounting Instructions
A pair of rack mount brackets are equipped with the IT-12M4 , unscrew the screws
on both sides rstly , then fasten the brackets with these screws and put the IT-12M4
in the rack, nally install the unit onto the rack with 4 screws .
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4-1 General Description
4. System Setup & Operation
is chapter provides a comprehensive and detailed description on how to setup and op-
erate IT-12 Interpreter System Main Unit (IT-12M4) and Interpreter Console (IT-12D).
(1)OPEN Mode: Interpreter Console Output Channel Select (IT-12D)
Select the Console with one of the Channel Output key ‘1, 2, 3”; for example: If you
want this unit to be NO. 1; just press “1”. en the indicator on the key will light on
in green while the channel is not occupied. If the indicator on the key ashes in red
that means the channel is occupied by other units. When the MIC. ON/OFF of the
activated channel is at OFF state, the activate channel could be released when other
interpreter console selects the same channel number.
(2)LOCK Mode: Interpreter Console Output Channel Select (IT-12D)
Interpreter Console must be assigned with one unique output channel before being
used. e procedure is as:
a. Make sure the connection is correct, and then turn on the IT-12M4.
b. Turn the “SET” seing switch from “OFF” on the rear panel of the Interpreter
Console to “ON”, the indicators of “ENTER” on the unit starts ashing. e indica-
tors of available channels will turn RED. Pay aention only one channel can be
activated.
c. Assign the Console with one of the Channel Output key “1,2,3”, for example: If you
want this unit to be NO 1, just press “1”. en the indicator on the key will change
to Green light, press “ ENTER ” key to store, the indicator of “ ENTER ” will keep
light on.
d. Turn the “SET” seing switch to “OFF”, the “ENTER” indicator will turn o, that
means the output channel selecting procedure is completed;
e. If cross interpretation is needed OPEN mode should be selected.
f. Repeat the same procedure (Steps b~d) to assign all the Interpreter Consoles.
(3)To Cancel Selected Output Channel (only for LOCK mode)
a. Turn the “SET” from “OFF” to “ON”.
b. Push the “ENTER” for 3 seconds. en all Channel Output Indicators will turn o.
c. Turn the “SET” from “ON” to “OFF”. e Console will be of factory seing now.

INTERPRETATION SYSTEM
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(4)e Operation of IT-12D Interpreter Console:
e Interpreter Console is designed with digital technologies and used in conjunction
with HPM-12 interpreter headset. Each Console allows two interpreters to work on it.
e operation procedures are as follows:
a. At LOCK mode, when the output channel is selected an interpreter only need push
the MIC ON/OFF key to activate the microphone or deactivate it.
b. At OPEN mode, an interpreter can press any Output Channel key to deliver the
correspondent language. e available channel will show a green indicator. A ash-
ing red indicator means the channel is occupied.
c. Put on the headset, adjust the microphone to an appropriate position and control
the volume (Floor language is “ORIGINAL” as defaulted). Press “MIC. A/B ON/
OFF” to start the interpretation.
d. In case the interpreter doesn’t understand the oor language. He/she can select a
language familiar with from other interpreter for relay interpretation. First press
“RELAY” key, the indicator will be on, and then switch the MONITOR to choose a
familiar language for interpretation.
e. In case the Interpreter wants to cough, keep pressing “COUGH CUT” key to cut
o the language output, release it to continue the interpretation.
f. When the speaker speaks too fast for the interpreter to follow, the interpreter can
press “SLOW” key to remind the speaker to slow down. A pulse signal will come
out as remind from the IT-12M4 to the speaker desk.
g. Each Interpreter Console accommodates A/B two interpreters to work, the opera-
tion A/B interpreter is the same.

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5. Technical Data
5-1 System environmental Conditions
5-2 Main Unit IT-12M4 Technical Data
Transport Temp.: -40○C~+70○C
Operational Temp.: 0○C~+45○C
Max. Relative humidity: <95%
Audio Input...................................................
Audio Output..............................................
Output Freq-Response.........................
T.H.D. ...............................................................
SNR....................................................................
Crosstalk..........................................................
Dynamic Range.........................................
Output Load................................................
Simultaneous Interpretation.............
Power Supply................................................
System Consumption............................
Dimension(m/m)....................................
Weight...............................................................
Ø6.3mm balanced, unbalanced
Level:0.775V
Combo XLR Level: 2mV
Floor Output: RCA*2 Symmetrical, RCA*6
10~16,000 Hz
<0.05%
>75dBA
>70dB(1kHz)
>85dB
>1kΩ
25 pin D-SUB
AC 110~220V/DC 12V
12W
421.6mm(W) * 44mm(H) * 213.2mm(D)
2 Kg