Shure ConferenceONEs User manual

User Guide
Model
User Guide
©2002, Shure Europe GmbH
27A8779 Printed in Germany
TM

English
CONTENT
User Guide
ConferenceONE™s Standard Discussion System
1 Introduction 2
1.1 Features 2
1.2 Components 2
2 Description 3
2.1 Power Supply Unit C1-PS 30s 3/4
2.2 Dele ate Console C1-Ds 5
2.3 Chairman Console C1-Cs 6/7
3 Setting Up 7
3.1 General Notes 7
3.2 Possible Confi urations 8
4 System Settings 9
4.1 Power Supply Unit 9
4.2 Chairman Console 10
4.2.1 Status Pa e 10
4.2.2 Usin the Menu 10/11
4.3 Test Mode 11
4.4 Lan ua e Selection 12
5 A C / Telco Audio Interface (Optional) 12
5.1 Interface Levels 12
5.2 Balanced / Unbalanced Connections 12
5.3 External Interface Device Settin s 12
6 System Operation 13
6.1 General 13
6.2 Operatin Instructions 13
7 Troubleshooting 14
8 Technical Data 15/16
9 Appendix - Connector Pin Assignments 17
1
1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Install in accordance with
the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. DO NOT defeat the safety purpose of the polarized or groundingtype
plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The
wider blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. PROTECT the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and the point where they
exit from the apparatus.
11. ONLY USE attachments/accessories specified by the manufacturer.
12. USE only with a cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid
injury from tip-over.
13. UNPLUG this apparatus during lightning storms or when
unused for long periods of time.
14. REFER all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been exposed
to rain or moisture, does not operate normally, or has been dropped.
1 . DO NOT expose the apparatus to dripping and splashing. DO NOT
put objects filled with liquids, such as vases, on the apparatus.
WARNING: Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. The
safety certifications do not apply when the operating voltage is changed from the factory setting.
IMPORTANT SAF TY INSTRUCTIONS !
This symbol indicates that there are important operating
and maintenance instructions in the literature
accompanying this unit.
This symbol indicates that dangerous voltage
constituting a risk of electric shock is present within
this unit.

1 Introduction
Shure’s ConferenceONE™s Discussion System is extremely easy to install and use. It was developed for use
at conferences, meetings, platform discussions and other comparable applications.
Due to its integrated loudspeakers, the ConferenceONE™s Discussion System also functions as a completely
self-contained public address system, which can be expanded by connecting external devices such as
mixers, wireless microphones, music sources, recorders or if required, external PA systems.
1.1 Features
• Simple installation and operation
• Single-cable conference system with standard Neutrik Minicon connectors
• Daisy chain connections from one console to the next
• Integrated loudspeakers in the consoles
• Additional headphone output with adjustable volume in each console
• Manual operation with PTT (push to talk) button
• Microprocessor-controlled
• Fold-up microphone arm with lightring
• Easy menu-guided settings from the chairman's console
• Scratch-resistant Nextel surface finish
• Flexible audio input and output configuration
• High-quality Microflex®microphone capsules
• Integrated compressor for consistent volume
1.2 Components
The ConferenceONE™s Discussion System consists of the following components:
ConferenceONE™s
• Power supply unit C1-PS 30s
• Chairman console C1-Cs
• Delegate console C1-Ds
• Bus cable 2 / / 10 m C1-B 2 / / 10
1
2
English

2 Description
2.1 Power Supply Unit C1-PS 30s
The power supply unit C1-PS 30s supplies the consoles with power and serves as an interface to external
devices.
Front view
2
3
37
41
6
2
Daisy chain socket
Minicon socket for connecting the
consoles via bus cables.
Audio input
The ON/OFF button activates the input on
the rear of the unit. The volume knob
adjusts the input signal level from the
external source. The signal and peak LEDs
illuminate to indicate the status of the
audio input level.
Monitor section
1/4” headphone output with volume
control. Press the volume knob to toggle
between monitoring the audio input and
output. The LEDs illuminate to indicate
which source you are currently monitoring.
Power L D
Illuminates when the unit is switched on
with the power switch.
1
4
2
Protect L D
During normal operation, this illuminates
when the power is activated, then goes out
when the system is ready. It also
illuminates if there is a fault in the power
supply unit, or if the number of consoles
connected to the system exceeds the
recommended number.
6
Audio output
The ON/OFF button activates the audio
output on the rear of the unit. The volume
knob adjusts the signal level output from
the conference system. The signal and
peak LEDs illuminate to indicate the status
of the audio output level.
3
Power switch
Use this button to turn the unit on or off.
7
English

2
4
Power socket
Socket with integrated fuse.
Audio output(*)
Electronically balanced output with
XLR-socket and unbalanced output via
dual female RCA connectors. The output
carries a mixed signal of the discussion
systems microphones, the audio input on
the power supply and the signal from the
AEC/Telco audio interface.
Input level + Phantom power switch
Switches the audio input sensitivity
between microphone and line level and
adds phantom power for condenser
microphones.
Daisy chain sockets
Minicon sockets for connecting the
consoles via bus cables.
Audio input(*)
Electronically balanced input via the
combined XLR/1/4” jack socket and
unbalanced output via dual female RCA
connectors.
1
2
3
4
21 43 6
(*) Please note that the audio input and output are not suitable to connect to an external tele-
phone hybrid. Please use the optional AEC / Telco Audio Interface (RPC230) for this purpose.
Rear view
English
A C / T LCO INT RFAC
Place optional AEC/Telco Audio Interface
(RPC230) here.
6

2
2.2 Delegate Console C1-Ds
2
1
4
3
67
Microphone arm
Fold-out arm with telescopic microphone.
Headphone volume control
Adjusts the headphone volume.
Lightring
Illuminates when the microphone of the
console is active. Blinks when the PTT
button is pressed and the maximum
number of microphones is already active.
Daisy chain sockets
Minicon socket for connection and
through-connection of the console bus.
The sockets are interchangeable; either
one may be used as an input or an output.
Headphone socket
1/8” stereo headphone socket. The
console speaker switches off when you
connect headphones.
CAUTION: Use only stereo plugs!
1
2
3
6
7
Loudspeaker
Transmits the sum signal from the
conference system. The loudspeaker
automatically switches off when the local
microphone is activated.
4
PTT button
Activates the microphone.
English
Top view Rear view

2
6
2.3 Chairman Console C1-Cs
2
1
6
8
9
4
3
7
Microphone arm
Fold-out arm with telescopic microphone.
CANC L button
Pressing this button switches off all active
microphones in the system except the
microphone of the chairman console.
Lightring
Illuminates when the microphone of the
console is active.
S L CT button
Press to select functions in the menu.
UP/DOWN buttons
Used for navigation in the menu, for
setting parameters and, in normal
operating mode, for adjusting the volume
of the conference system.
1
2
3
6
7
8
Loudspeaker
Transmits the sum signal from the
conference system. The loudspeaker
automatically switches off when the local
microphone is activated.
4
PTT button
Activates the microphone.
Liquid Crystal Display
Displays menu functions.
In normal operating mode, it displays a
status page that offers access to the most
important system settings.
9
PRIORITY button
Activates the priority function of the
chairman console. Press and hold this
button to temporarily switch off all other
active microphones in the system and to
activate the microphone of the chairman
console.
English
Top view

3
7
Headphone volume control
Adjusts the headphone volume.
Headphone socket
1/8” stereo headphone socket. The
console speaker switches off when you
connect headphones.
CAUTION: Use only stereo plugs!
Daisy chain socket
Minicon socket for connection and
through-connection of the console bus.
The sockets are interchangeable; either
one may be used as an input or an output.
1
2
3
2
13
3 Setting Up
3.1 General Notes
A functional system consists of a power supply unit, a chairman console, up to 29 delegate consoles and the
necessary connection cables. All necessary cables for the basic system are included with the various
components.
The following general rules must always be observed when setting up the system:
• Always switch off the power supply unit before connecting or disconnecting consoles or bus cables.
• Do not connect more than 1 consoles per Minicon socket.
• Do not connect more than 30 consoles per system.
• The length of a console-bus branch must not exceed 40 m.
It is immaterial in which order the components are connected within the daisy chain. For example, the
chairman console does not have to be connected as the first console: it can be connected to the console bus
at any desired position.
If desired, the console bus can be connected as a loop. This improves the operational reliability since the
consoles will still have a functional connection in the case of a cable breakage within the loop.
English
Rear view

3
8
3.2 Possi le Configurations
For small systems, up to 1 consoles can be connected directly to the Minicon socket on the front of the
power supply unit. The bus cable is connected from each console to the next.
The sockets on the rear of the power supply unit can be used in parallel to the front socket. However, the total
number of consoles must not exceed 30.
English
C1-Cs
Chairman
console
C1-Cs
Chairman
console
C1-Ds
Delegate console
C1-Ds
Delegate console
C1-B 2/5/10
Bus cable
C1-B 2/5/10
Bus cable
C1-PS 30s
Power
suppl
unit
C1-PS 30s
Power
suppl
unit

4
9
4 System Settings
All adjustments to the settings of the conference system are made on the chairman console. The controls
located on the power supply unit adjust the signal input and output for external devices.
4.1 Power Supply Unit
The slide switch beside the input socket on the rear of the power
supply unit sets the sensitivity of the audio input between
microphone level and line level. The third position of the switch
provides 13 V Phantom power to a connected condenser
microphone.
Press the ON/OFF button in the input section to activate the audio
input on the rear of the unit. The LED above this button illuminates
green when the input is active.
Adjust the audio input level with the VOLUME knob.
When signal is present at the input, the "Signal" LED illuminates
green. If the "Peak" LED illuminates red, reduce the input level in
order to avoid distortion.
Press the ON/OFF button in the output section to activate the audio
output on the rear of the unit. The LED above this button illuminates
green when the output is active.
Adjust the audio output level to external devices with the VOLUME
knob.
English

4
10
4.2 Chairman Console
The system is configured from the chairman’s console
with the aid of the LCD and the three buttons below it:
SELECT,  and  .
4.2.1 Status Page
In normal operating mode, the display shows the status page with the current settings. The display always
returns automatically to this status page if there is no user activity for ten seconds.
Volume 12
Limit 4
Volume Chime On/Off
Maximum active microphones
4.2.2 Using the Menu
With Limit set to 1, a timer displays how long the currently
active microphone has been on.
In normal operating mode (when the status page is displayed),
the volume of the system can be adjusted by pressing the
 or  buttons. Press SELECT to return to the status page.
Press the SELECT button to display the Setup menu, then use
the
 or  buttons to select a menu item. The selected item is
underlined in the display.
Pressing the SELECT button again activates the Setup menu
for that item.
Selecting xit returns the user to the status page.
Volume 12
Limit 1 12:42
Volume 12
Setup
Limit Chime Exit
English

4
11
Use the Limit menu item to specify the maximum
number of microphones that can be activated
simultaneously in addition to the chairman console. If
the Limit is set to 1, the timer is displayed. Press
 or  buttons to change the value and then press
SELECT to return to the status page.
Use the Chime menu item to specify whether or not a
chime will sound when the PRIORITY button is pressed
on the chairman console. Press
 or  button to
change the value and then press SELECT to return to
the status page.
Setup
Limit 4
Chime
ON OFF
The following diagram shows the entire menu tree.
Volume 12
Limit 1 12:42
Volume 12
Limit 4
Volume 12
Setup
Limit Chime Exit
Chime
ON OFF
Setup
Limit 4
4.3 Test Mode
Activate test mode by pressing and holding both of
the  and  buttons for approximately three seconds.
The installed software version appears in the display and
the lightrings on all delegate consoles illuminate in order
to permit simple detection of any cable breakages or
defective consoles.
Press the SELECT button to return to normal operating
mode.
ConferenceOne
SHURE Ver.1. s
English

5
12
4.4 Language Selection
Access the Language selection menu by pressing and
holding both the  and  buttons for approximately five
seconds. The current language appears in the display.
Use the
 and  buttons to select a different menu
language, then press the SELECT button to activate it and
return to the status page.
Select Language
English
English
5 A C / Telco Audio Interface (Optional)
This interface provides a dedicated termination to connect the discussion system directly to most external
telephone hybrids or videoconference codecs, enabling users of the system to communicate with remote
parties. When used in conjunction with a telephone hybrid, the ConferenceONE™ discussion system can
communicate with distant parties over standard telephone lines. When used in conjunction with a
videoconference codec, the ConferenceONE™ provides the audio portion of a videoconference. To avoid
returning echoes to the distant party, the device must provide effective acoustic echo control (AEC). The
ConferenceONE™ discussion system does not provide this echo control function.
5.1 Interface Levels
The interface provides professional balanced line level signals; a nominal
level of 0 or +4 dBu. Level Adjustment switches, set next to the terminal
blocks, allow for optimum level matching to a hybrid/codec that may require
higher or lower than nominal speech signal levels to properly operate. To
maintain the same input and output level the switches should be set to
the same position. If the hybrid/codec provides weaker than nominal
receive signal levels from the remote party (received speech in the
ConferenceONE™ loudspeakers is perceived to be lower in level than the
local speech), the switches can be set to the “- dB” positions to match the
lower than nominal Receive Input signal level. This will boost the received
speech heard from the loudspeakers and lower the level of transmitted
speech. The opposite effect results with the switches set to the “+ dB”
positions. Note that these switches cannot be expected to compensate for
poor line conditions. For reliable teleconferencing, the external telephone
hybrid or videoconference codec needs to be capable of providing
consistent receive signal levels to the ConferenceONE™ over a range of
conditions.
5.2 Balanced / Un alanced Connections
The 6-pin terminal block provides a balanced input and output audio connection to the system. If the
hybrid/codec uses unbalanced inputs and outputs, make connections to the ConferenceONE™ “+” terminals
and ground, leaving the “-” terminals open.
5.3 External Interface Device Settings
For information on the required settings of the external telephone hybrid or videoconference codec, refer to
its user guide.

6 System Operation
6.1 General
Each console microphone is activated by simply pressing the PTT button and deactivated by pressing this
button again. However, the number of simultaneously active microphones is limited to a value between one
and eight microphones according to the limit set in the menu of the chairman console.
If the maximum number of active microphones is set to one, the chairman console displays the length of time
that the microphone is active.
Note: In order to avoid feedback, the overall volume is automatically reduced as the number of active
microphones increases.
Pressing and holding the PRIORITY button on the chairman's console activates the chairman’s microphone
and deactivates all other microphones, for as long as the PRIORITY button is held. The lightrings on the
temporarily deactivated delegate consoles blink as long as the priority function is active. After releasing the
PRIORITY button, all delegate microphones return to their prior state.
English
6
13
6.2 Operating Instructions
To set the volume of the system:
1. Press  or  button to change the volume
2. Press SELECT to return to the Status Page
To limit the number of active microphones:
1. Press SELECT to access the Setup menu
2. Press
 or  button until the Limit menu is underlined in the display
3. Press SELECT to access the Limit menu
4. Press
 or  button to increase or decrease the number of active microphones
. Press SELECT to return to the Status Page
To activate or deactivate the Chime:
1. Press SELECT to access the Setup menu
2. Press  or  button until the Chime menu is underlined in the display
3. Press SELECT to access the Chime menu
4. Press
 or  button to activate or deactivate the Chime
. Press SELECT to return to the Status Page
To select Menu Language:
1. Press  and  buttons simultaneously for seconds until SELECT language menu appears in the
display
2. Press
 or  button to select desired language
3. Press SELECT to activate and return to the Status Page
To activate Test Mode:
1. Press  and  buttons simultaneously for 3 seconds until software version is displayed and all
lightrings illuminate
2. Press SELECT to return to regular operation

7
14
Green Power LED is off • Is the power cable plugged in?
• Is the power switch set to ON (I)?
• Check the main fuse in the power socket.
Red Protect LED illuminates • Check that the maximum permissible number of
consoles has not been exceeded (30).
• Disconnect all consoles and cables. If the LED still
illuminates, send the power supply unit to an
authorized workshop for repair.
• Activate the test mode.
• Connect the consoles and cables one at a time to
the power supply unit and check their functions.
No sound • Check the volume setting on the chairman
console.
• Activate the test mode.
• Check that all Minicon plugs are fully inserted
(locked) into their sockets.
Feedback (whistling)
7 Troubleshooting
Problem Remedy
• Move the consoles farther apart.
• Reduce the system volume on the chairman
console.
Delegate microphone cannot be
activated, lightring on
microphone arm blinks
• The maximum number of simultaneously active
microphones has been reached. Increase the limit
or deactivate one of the other microphones.
English
Echoes and feedback when
system is connected to a distant
party via optional AEC/Telco
Audio Interface and external tele-
phone hybrid or videoconference
codec.
• Adjust audio levels of the external telephone hybrid
or videoconference codec.
• Check external telephone hybrid or video-
conference codec if acoustic echo cancellation
(AEC) is activated.
• Redial for a possibly better telephone connection.
• Ask connected distant party to check their system
for correct settings.

8
1
8 Technical Data
Power Supply Unit C1-PS 30s
Mains Voltage
C1-PS 30s A: 120 V AC, 0/60 Hz
C1-PS 30s J: 100 V AC, 0/60 Hz
C1-PS 30s E, C1-PS 30s UK : 220 - 240 V AC, 0/60 Hz
Power rating: 160 VA
Primary Fuses
C1-PS 30s A: T2. A
C1-PS 30s J: T3.1 A
C1-PS 30s E, C1-PS 30s UK : T1.2 A
Secondary Fuses: 2 x T4A
Bus supply voltage: +/- 24 V DC nom.
Headphone output
Output impedance: 8 Ohm
Socket: 1/4” stereo jack socket
Connections
Maximum number of consoles
per console-bus branch (Minicon): 1
Maximum total number of consoles: 30
Maximum length of a console-bus branch: 40 m
English
Output Clipping Level
Impendance
Microphone
(balanced)
Audio inputs Line
(balanced)
Aux
(unbalanced)
Impendance 8 kOhm 0 kOhm
Input Clipping
Level -26 dBV +6 dBV +6 dBV
Phantom
Power 13 V DC
AEC / Telco
Audio Interface
(balanced)
0 kOhm
+20 dBV
8 kOhm
-- -- --
Audio outputs Aux
(unbalanced)
Line
(balanced)
<20 Ohm
+18 dBV +12 dBV
AEC / Telco
Audio Interface
(balanced)
200 Ohm
+18 dBV
<20 Ohm

16
Consoles
Power rating
Delegate console C1-Ds: 1,2 W
Chairman console C1-Cs: 4,8 W
Microphone
Microphone type: Electret-condenser (Microflex®)
Directional characteristic: Supercardioid
Headphone output
Output impedance: 4 Ohm
Socket: 1/8” stereo jack socket
Performance
Microphone to audio output
Frequency range: 100 Hz – 1 kHz
Distortion factor: ≤0,3 %
Audio input to audio output
Frequency range: 0 Hz – 18 kHz
Distortion factor: ≤0,3 %
Mechanical data
Dimensions (H x W x D)
Power supply unit C1-PS 30s: 88,1 x 482,6 x 237 mm
Chairman console C1-Cs: 8 x 26 x 210 mm
Delegate console C1-Ds: 8 x 16 x 210 mm
Weight
Power supply unit C1-PS 30s: 7 kg
Chairman console C1-Cs: 1 kg
Delegate console C1-Ds: 0,7 kg
Miscellaneous
Operating temperature range: -7°C … + 7°C (+20°F … +13 °F)
Note: Electrical safety approval is based on
maximum ambient temperature of 3 °C.
8
English

Certification
Model C1-PS 30s A UL Listed to UL 6 00, 2nd Edition, cUL Listed to
CAN/CSA E6006 -00. Authorized under the
Verification provision of FCC Part 1 as a Class B
Digital Device. This Class B Digital apparatus
complies with Canadian ICES-003.
Model C1- PS 30s E, C1-PS 30s UK Conforms to European Community Directives,
eligible to bear CE Mark; TUV GS-Certified to EN
6006 , 6th Edition; Meets EMC Requirements of
EN 103 (Parts 1 & 2), Environments E1 & E2.
Meets Australian EMC Requirements, eligible to
bear C-Tick Mark.
Model C1- PS 30s J TUV (PSE) Certified to J 6006
Information to User
Changes or modifications not expressly approved by Shure Manufacturing GmbH could void your
authority to operate this equipment.
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to Part 1 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can radia-
te radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
English
17
8

English
9
18
9 Appendix - Connector Pin Assignments
912
8
10 12 3
7
11 4
6
Minicon Bus Cable Pin Signal Cable Color Code
1 Audio 1 black
2 Control 2 blue
3 -24 V gray
4 GND brown
GND purple
6 GND pink/gray
7 GND red
8 +24 V pink
9 Control 3 yellow
10 Control 1 green
11 Mic Bus white
12 Mode red/blue
Shield connected to connector housing

Shure Europe GmbH
Wannenäcker Str. 28
D-74078 Heilbronn
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Unit 301, 3 Floor,
Citicorp Centre,
18, Whitfield Road,
Causeway Bay, Hong Kong
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
rd
Shure Incorporated
800 W. Touhy Avenue
Niles, IL 60714-4608, U.S.A.
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Shure Asia Limited