JTS CS-1 User manual

1. Important Cautions
2. Features
3. Specication
3.1 Control and power supply unit (CU)
3.2 Delegate and Chairman unit
4. Preparing Procedure
4.1 Connecting between the delegate and chairman units
4.2 Connecting up to 150 unit
4.3 Connecting an external microphone
4.4 Connecting a wireless microphone
4.5 Recording | Playing back the discussion
4.6 Connecting a PA-system | other external equipment
4.7 Connecting a telephone coupler
4.8 Connecting Equalizer or other effects
4.9 Connecting power cord
5. Operation
5.1 System testing
5.2 Date / time setting
5.3 Key Lock
5.4 Counter operation
5.5 Delegate unit operation
5.6 Chairman unit operation
5.7 Volume control of the delegate and chairman units
5.8 Volume control of headphone and internal speaker of CU
5.9 Using a headphone
5.10 Open mode
5.11 Time mode
5.12 Override mode
5.13 Chairman only mode
6. Technical Data
6.1 Electrical and Electro-Acoustical Characteristics
6.2 Mechanical Specications
6.3 General Specications
6.4 Pin conguration
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1.Important Cautions
• Make all connections before plugging the unit into an AC
power outlet.
• Do not leave the devices in a place with high temperature
or high humility.
• Do not handle the power cord with wet hands.
• Keep the devices away from re and heat sources.
• Hot swapping is forbidden.
2. Features
The innovative CS-1 i-Conference Discussion System is
equipped with JTS in-house made ECM capsule, intelligent
automatic mixing technology and integrated acoustic and
mechanical design, providing Turn-Key solution and deliv-
ering consistently natural, feedback-free audio performance
with any environment.
The i-Conference Discussion System is ideal for discussion
and meeting with up-to 150 attendants.
A CS-1 i-Conference Discussion System consists of:
• One Control and power supply unit (CU)
• Maximum 50 delegate or chairman units
• Peripheral audio and/or telecommunication equipment.
The CU is the center of the discussion system which con-
trols the microphones of the chairman and delegate units
as well as connects to other audio input and output. It also
supplies the power for the CU itself, and up to 50 chairman
and delegate units.
The delegate unit enables the attendants to participate in a
discussion by speaking through a microphone, controlled by
a microphone ON/OFF push-button, and listening discus-
sion by the internal loudspeaker and external headphone.
The chairman unit not only provides the same function as
the delegate unit, but also supports the addition of a “Prior-
ity button”,that enables the chairman to control the discus-
sion by temporary or permanently overriding and deactivat-
ing all active microphones
of the delegate units.

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3. Specication
3.1 Control and power supply unit (CU)
3.1.1 Front Panel
1) Power On/Off switch
2) LCD display: setting and displaying mode status, simul-
taneously maximum user number, and date.
3) Set button: pressing “set” button to enter setting mode on
the LCD panel.
4) Up & Down buttons: pressing “Up” or “Down” to switch
the setting.
5) Speaker Volume control: controlling all connected chair-
man and delegate units.
6) Monitor Volume control: controlling both speaker and
headphone of the CU.
7) Headphone input: allowing another alternative of
listening discussion. While inserting the headphone, the
loudspeaker will be deactivated.
8) Loudspeaker.

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3.1.2 Rear Panel
1) DCV input:
2) Insertion input and output switch: default setting is
“In”, when switching to“In”, all internal speaker will be
muted, and switch to external audio device.
3) Telephone coupler input and output:
4) Insertion input and output: connect to an external audio
equalizer for speech quality improvement.
5) Recorder input and output: connect to a recorder that-
could record and play back the discussion.
6) Line input and output: connect to PA-System or other
audio devices.
7) Gain control 1: control the volume level of Recording
input.
8) Gain control 2: control the volume level of Microphone
XLR input.
9) Trunk output 1 and 2: connect to chairman and delegate
units. *
10) Microphone XLR input: connect to external micr phone
or wireless microphone receiver.
* Note: Hot swapping is forbidden.

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3.1.3 LCD Display
1) Mode status: show the discussion mode
2) Simultaneously user number: the maximum number of
simultaneously active users is four.
3) Date | Set: While setting, “Set” will ash.
4) Time:
3.2 Delegate and Chairman unit
1) Gooseneck Microphone
2) Two 3.5mm stereo headphone sockets
3) Rotary volume control: control the volume level of the
headphone.
4) Ring & Microphone “On” indicator: While microphone
is activated, both indicators will light up.
5) Loudspeaker
6) 7-pole circular female socket *
7) 7 pole circular male connection cable
8) Microphone ON/OFF push-button
9) Chairman Priority button
10) Priority button setting switch: The default setting
is“A”, meaning when releasing the priority button, the
microphone on delegate units will be re-activated. When
switching to “B”, the microphone on delegate units
won’t be reactivated after the priority button is released.
11) Gooseneck Microphone Gain Control: Control the vol-
ume of the microphones on the chairman and delegate
units.
* Note: Hot swapping is forbidden.
A
B

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Delegate
Chairman unit

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4. Preparing Procedure
4.1 Connecting between the delegate and
chairman units
1) Insert 7-pole circular male connection cable of the chair-
man or delegate units into the Trunk socket on the CU.
2) Connect the second unit to 7-pole circular female socket
of the rst unit.
3) Repeat the above actions for the rest of units. (Maximum
connected number per trunk socket is 25)
4.2 Connecting up to 150 units
The i-Conference discussion system can be used with up to
150 units by adding maximum 2 additional CUs functioning
as power supply units only. The system is controlled by the
master CS-1 CU. The cables necessary for these connections
can be delivered by your local dealer.
3...253...25

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4.3 Connecting an external microphone
1) Put the external microphone connector into the micro-
phone XLR input of the CU.
2) Adjust the sensitivity by using the gain control 2.
Caution:
Always use the microphone with balanced output.
The microphone XLR input provides a 12V phantom power
supply.
4.4 Connecting a wireless microphone
1) Connect a wireless receiver to the microphone XLR
input of CU.
2) Adjust the sensitivity by using the gain control 1

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4.5 Recording | Playing back the discussion Voltage:
1) Connect a recorder to the recorder input and output by
two pairs of RCA cable.
2) Adjust the sensitivity by using the gain control 1
4.6 Connecting a PA-system | other external equipment
1) Connect audio sources to the line input by a RCA cable.
2) Connect a PA-system or other devices to the line output
by inout a RCA cable.
outin
out
in
audio sources
PA-system

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4.7 Connecting a telephone coupler
1) Connect the telephone coupler to the telephone input and
output of the CU by a pair of RCA cable.
2) The telephone coupler would further connect to the
telephone wall socket and a telephone.
Caution:
Never try to connect a telephone directly to CS-1 i-Confer-
ence Discussion system.
A telephone coupler could provide adequate isolation
between the telephone network and the CS-1 i-Conference
Discussion System.
4.8 Connecting Equalizer or other effects
1) Connect a equalizer or other effects to the insertion input
and output by one pairs of RCA cable.
2) When insertion input and output switches to “O/out,
audio signal will be processed by effect equalizers that
connected to insertion output and input.
Telephone Coupler
Equalizer

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4.9 Connecting power cord
1) Using the supplied power cord set to connect the CU to
the power supply socket.
2) Press Power ON/OFF switch to turn on the system. As
soon as the power is on, the LCD Display will light up.

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5. Operation
5.1 System testing
1) Pressing the “Set” button over 1.5 seconds, the Date | Set
area on the LCD Display will ash and show “Set”.
2) Press “Up” or “Down” button to choose “System Test”
on the Mode Status area of the LCD Display.
3) All connected chairman and delegate units will light up.
5.2 Date | Time Setting
1) Pressing the “Set” button over 1.5 seconds, the Date |
Set area on the LCD Display will ash and show “Set”.
2) Press “Up” or “Down” button to choose “Set Date
Time” on the Mode Status area of the LCD Display.
3) Press “Set”, The “Year” will ash, press “Up” or
“Down” button to select.
4) Repeat the action 3) to set up “Month” ,“Date”, “Hour”,
and “Minute.
5) Press the “Set” button to save the settings.
5.3 Key Lock
1) Pressing the “Set” button over 1.5 seconds, the Date |
Set area on the LCD Display will ash and show “Set”.
2) Press “Up” or “Down” button to choose “KeyLock” on
the Mode Status area of the LCD Display.
3) All buttons will be deactivated.
4) Repeat above action again to unlock..
3...25
SET SET

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5.4 Counter Operation
1) Pressing the “Set” button, the Date | Set area on the LED-
Display will show“Counter”
2) Pressing “Up” to start counting.
3) Pressing “Up” again to stop.
4) Pressing “Down” to clear data after stopping.
5) Pressing the “Set” button again to jump back the original
display. Notice that you can operate any other functions
of the control unit when the counter is used.
5.5 Delegate unit operation
1) Depending on the setting of the microphone mode on the
CU, pressing the microphone ON/OFF push-button will
activate the gooseneck microphone.
2) Pressing again turns the microphone off
SET
SET
SET
1..4 1..4

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5.6 Chairman unit operation
1) Independent of the setting of the microphone mode on
the CU, pressing the microphone ON/OFF” push-button
will activate the gooseneck microphone on the chairman
unit.
2) Pressing again turns the microphone off.
3) Pressing and holding the chairman priority button will
deactivate all active delegate units and activate the chair-
man microphone.
4) Releasing the button will activate them again.
5.7 Volume control of the delegate and
chairman units
1) Turning the speaker volume control to adjust the volume
of the loudspeakers of the delegate and chairman units.
2) In the fully counterclockwise position, all loudspeakers
will be muted.
Delegate
Priority
button
Delegate
Chairman
Chairman
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
100

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5.8 Volume control of headphone and
internal speaker of CU
1) While using internal speaker or headphone to monitor
the discussion, turning the monitor volume control to
adjust the volume of them.
2) The maximum volume level is controlled by the speaker
volume control of CU
5.9 Using a headphone
1) Connecting the headphones to the left and/or right side
of the units.
2) Inserting a headphone jack will mute the loudspeaker.
3) Adjusting the volume of the headphones by using the
rotary volume control.
4) The maximum volume level depends on the level of the
speaker volume control on the CU.
1
2
3
456
7
8
9
100

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5.10 Open mode
1) Pressing the “Set” button over 1.5 seconds, the Date | Set
area on the LCD Display will ash and show “Set”.
2) Press “Up” or “Down” button to choose “Open Mode”
on the Mode Status area of the LCD Display.
3) Press “Set” button again, the number on simultaneously
user number will ash.
4) Press “Up” or “Down” button to choose the simultane-
ously user number (1,2,3,4).
5) Press “Set” button to save the changes.
Under “Open mode”, press the microphone ON/OFF push-
button on chairman and delegate units will activate the
microphone.
Press again will deactivate it.
5.11 Time mode
1) Selecting the “Time mode” and simultaneously maxi-
mum user number as the 5.10 procedures.
Under “Time mode”, press the microphone ON/OFF push-
button on delegate units will activate the microphone for 30
seconds.
If the number of active delegate units is smaller than the
maximum user number, press again will activate it for
another 30 seconds.
1..4 1..4
SET SET
1..4 1..4
SETSET

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5.12 Override mode
1) Selecting the “Override mode” as the 5.10 procedures.
Under “Override mode”, the system only allow one delegate
unit be activated. Press the microphone ON/OFF push-but-
ton on one delegate unit will deactivate the previous active
delegate unit, and activate its own microphone
5.13 Chairman only mode
1) Selecting the “Chairman only mode” as the 5.10 proc
dures.
Under “Chairman only mode”, the system only allow chair-
man units be activated. All delegate units will be deacti-
vated.
AA BA B
SET
A B
SET

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6. Technical Data
6.1 Electrical and Electro-Acoustical
Characteristics
6.1.1 CS-1CU
Voltage: VAC100-240~, 50/60Hz
Current consumption: MAX 0.9A(100VAC) 0.3A(240VAC)
DC supply to contribution units: ±15V
Line, telephone coupler and insertion in/outputs (unbal-
anced)
• Input sensitivity: -14dBV/+11dBV (hominal/maximum)
• Input impedance: 33KΩ
• Output level: -14dBV/+11dBV (hominal/maximum)
• Output impedance: 500Ω
Recorder in/output (unbalanced)
• Input sensitivity: -20dBV/+5dBV (hominal/maximum)
• Input impedance: 47KΩ (for L & R channel)
• Adjustment: -20dBV/+5dBV
• Output level: +0/-30dB
• Output impedance: 500Ω
External microphone input (balanced)
• Input sensitivity: -56dBV (-6dBV via mcludod adapter)
• Adjustment: +6dBV/-6dB
• Phantom supply: 12V+/-1V, 2*680Ω (+/-2%)
Headphone output
• Output level: -8dBV/+2dBV
• Output Impedance: 22Ω
System limits
Number of delegate/chairman units connected to CU
• Maximum in total: 50
• Maximum per Trunk output: 25
• Maximum trunk length using CS-1: standard cabling:
100m (328 ft)