HPA SC-2288R User manual

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SC-2288R/D/C/CG8
USER MANUAL
MODE D’EMPLOI
WIRELESS MEETING SYSTEM
SYSTEME DE CONFERENCE SANS-FILS

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English
[Table of Contents]
Overview
1. System Configuration and description-----------------------------------------------2
1.1 System features-----------------------------------------------------------------------2
1.2 Wireless meeting system receiver unit ----------------------------------------------2
1.2.1 Picture of the actual object -----------------------------------------------------------2
1.2.2 Features of wireless meeting system receiver unit ----------------------------------3
1.2.3 Schematic diagram of wireless meeting system receiver unit ----------------------3
1.2.4 Parameter of wireless meeting system receiver unit---------------------------------4
1.3 Wireless meeting system microphone unit-------------------------------------------4
1.3.1 Picture of the actual object -----------------------------------------------------------4
1.3.2 Features of wireless delegate microphone unit --------------------------------------5
1.3.3 Features of wireless chairman microphone unit -- ----------------------------------5
1.3.4 Schematic diagram of wireless microphone -----------------------------------------5
1.3.5 Parameter of Parameter of wireless microphone-------- ----------------------------6
1.4 Battery charger -----------------------------------------------------------------------7
1.4.1 Picture of the actual object -----------------------------------------------------------7
1.4.2 Features of battery charge------------------------------------------------------------7
1.4.3 Schematic diagram of battery charge------------------------------------------------7
1.4.4 Parameter of battery charge ---------------------------------------------------------8
1.5 Wireless meeting system Lithium battery ------------------------------------------8
1.5.1 Picture of the actual object------------------------------------------------------------8
1.5.2 Features of Lithium battery-----------------------------------------------------------8
1.5.3 Schematic diagram of Lithium battery------------------------------------------------8
1.5.4 Parameter of Lithium battery---------------------------------------------------------9
2. System installation-------------------------------------------------------------------9
2.1 Warning-------------------------------------------------------------------------------9
2.1.1 CAUTION on handling of the microphone unit---------------------------------------10
2.1.2 CAUTION on battery charger handling----------------------------------------------10
2.1.3 CAUTION on battery handing--------------------------------------------------------10
2.2 Identify room layout-----------------------------------------------------------------11
2.2.1 Check coverage area-----------------------------------------------------------------11
2.2.2 System configuration----------------------------------------------------------------11
2.3 Installation and connection of receiver unit-----------------------------------------11
2.3.1 Receiver unit installation------------------------------------------------------------11
2.3.2 Antenna connection------------------------------------------------------------------12
2.3.3 Receiver unit to sound system------------------------------------------------------12
2.3.4 Receiver unit to video processor-----------------------------------------------------13
2.3.5 Receiver unit to external antenna---------------------------------------------------13
2.4 Installation of wireless microphone unit--------------------------------------------13
2.4.1 Mounting and dismounting the battery----------------------------------------------13
2.4.2 Mounting and dismounting the microphone-----------------------------------------14
2.5 System setting-----------------------------------------------------------------------14
2.5.1 Receiver unit setting-----------------------------------------------------------------14
2.5.2 Microphone setting and operation---------------------------------------------------18
3. Troubleshooting----------------------------------------------------------------------19
FRANCAIS-----------------------------------------------------------------------------20

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Overview
With high flexibility and reliability, our UHF wireless conference system is an ideal choice for mobile
conference systems. It offers simple operation, compact structures. The wireless conference system
can be perfectly integrated into any meeting rooms, without additional wiring. It’s the best wireless
conference solutions for small-scale conferences.
1. System Configuration and description
Wireless meeting system receiver unit, wireless chairman microphone , wireless delegate microphone ,
battery charger , etc.
1.1 System features
Support Mode: Limit (1/2/3/4), FIFO (1/2/3/4), Chairman Only, microphones in one system up to
256 units, 5 microphones can be turned on at the same time.
Microphones can be operated on either their built-in rechargeable batteries. Battery life approx. 8
hours during speech and approx. 30 hours when standby.
Wireless communication system eliminates the need of connecting the conference units.
Installation can be done quick and smart without cumbersome arrangements.
Adopt multi-channel high band and intermediate band frequency selective filtering,
fully eliminate interference signal
Built-in feedback eliminating technology which can decrease the feedback and noise effectively
Built-in multiple noise detecting circuit and TONE-LOCK system to make sure the system
has strong anti-jamming function
Operation distance up to 100 meters with the best condition, 60 meters in normal condition.
Support video camera auto-track function with video processor
1.2 Wireless meeting system receiver unit SC-2288R
1.2.1 Picture of the actual object
1.2.2 Features of wireless meeting system receiver unit
Support Mode: Limit (1/2/3/4), FIFO (1/2/3/4), Chairman Only
Support video camera auto-track with video processor
160x32 dot matrix LCD display system information
Receiver can control the microphone status when powered off, such as clear or shutting off all

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microphones.
Designed accordance to CE and RED standards
Installation: 19-inch frame
1.2.3 Schematic diagram of wireless meeting system receiver unit
1) Power switch
2) RF/Audio Level indicator (First channel only for chairman mic, the last four channels for delegate
mic)
3) Volume knob of chairman microphone (Channel 1)
4) Volume knob of delegate microphone (Channel 2)
5) Volume knob of delegate microphone (Channel 3)
6) Volume knob of delegate microphone (Channel 4)
7) Volume knob of delegate microphone (Channel 5)
8) Setting key/check channel frequency
9) Menu
10) Setting key/check channel frequency
11) LCD (Display current mode, frequency point of each channel)
12) ANT DATA: System data control antenna interface
13) DATA: External video processor connection interface
14) DC Power input
15) MIX OUT: Mixed audio output
16) MIX BAL: Mixed audio balance output
17) ANT B: Delegate mic RF antenna interface
18) ANT B: Delegate mic RF antenna interface
19) ANT A: Chairman mic RF antenna interface

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1.2.4 Parameter of wireless meeting system receiver unit
Items
Parameter
Audio channel
Transmission method
UHF Wireless (one way)
Audio channel
5 (1 chairman,4 delegate)
Carrier frequency band
610.00MHz~659.75MHz
740.00MHz ~ 790.00MHz
Modulation method
FM
Receiving sensitivity
-100dBM
Audio gain
≤20
Frequency response
50Hz-15KHz
S/N Ratio
＞85dB
T.H.D.
＜0.8%
Data control
channel
Transmission method
Wireless (two-way)
Data channel
16
Frequency Range
422.4MHz ~ 438.4MHz
Modulation method
FSK
Receiving sensitivity
-100dBM
Transmission consumption
≤6dBm
Communication rate
100KBPS
Frequency deviation
＜0.002
System
Power supply
DC12~15V ≤1A
Signal covering range
Radius 60 meters
Consumption Rating
7W
Operating temperature range
-10-40 degree
Dimensions
485×355×85mm
N.W
7kg

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1.3 Wireless meeting system microphone unit
1.3.1 Picture of the actual object
1.3.2 Features of wireless delegate microphone (SC-2288D)
Portable table moving and microphone pipe can be pull out. Extended pipe option.
Electric capacity type microphone, equipped with windshield cover
LCD display microphone ID, battery level, microphone state, control channel, etc.
Equipped with microphone on/off key and indicator.
Equipped with 3 function keys to set microphone id, control channel, volume level and battery
status.
Microphone will shut off the power or in standby if receiver powered off.
1.3.3 Features of wireless chairman microphone (SC-2288C)
Including the functions of the delegate unit, chairman unit has other following functions:
Chairman microphone can turn on any time.
If the system support video camera auto-track function, chairman microphone ID number should
be 1
Priority function: chairman can turn off delegate microphones by clear key any time
Chairman only mode: Delegate microphone cannot be turned on again after chairman microphone
press priority button. The chairman need quit this mode first, and then delegate microphone can be
turned on again
1.3.4 Schematic diagram of wireless microphone
1) Unidirectional electret MIC
2) Annular red indicator lamp to show the microphone state.
3) Mute/Set key
4) Mic volume +/ up key

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5) Mic volume up -/down key
6) MIC ON/OFF key
7) Chairman Priority
8) LCD
9) Microphone power switch
1.3.5 Parameter of wireless meeting system microphone unit
Items
Parameter
Audio channel
Transmission method
UHF Wireless (one way)
Audio channel
5 ( 1 chairman, 4 delegate)
Carrier frequency band
610.00MHz~659.75MHz
740.00MHz ~ 790.00MHz
Modulation method
FM
Maximum modulation
60KHz
Radiant power
≤+9dBm
Frequency deviation
＜0.002
Frequency response
50Hz-15KHz
S/N Ratio
＞85dB
T.H.D.
＜0.8%
Data control
channel
Transmission method
Wireless (two-way)
Data channel
16
Frequency Range
422.4MHz ~ 438.4MHz
Modulation method
FSK
Receiving sensitivity
-100dBM
Transmission consumption
≤6dBm
Communication rate
100KBPS
Frequency deviation
＜0.002
System
Power supply
DC3.7~4.5V
Signal covering range
Radius 60 meters
Consumption Rating
Standby: ≤360mW
Speaking: ≤630mW
Operating temperature range
-10-40 degree
Dimensions
170×58×120mm
N.W
0.7kg

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1.4 Battery charger
1.4.1 Picture of the charger SC-2288CG8
1.4.2 Features of battery charger
a. Input Voltage: AC 110V~220V
b. Charges 8 PCS of lithium battery per charging
c. Intelligent charging management electro circuit to protect the LIP battery
d. Equipped with extendable handle and pulley, easy for moving.
1.4.3 Schematic diagram of battery charger
1) Pulley
2) Extendable handle
3) Charging status indicator LED
4) Battery holder
5) Power indicator
6) Power on/off switch
7) AC adapter jack (AC110V-220V～50Hz-60Hz)

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1.4.4 Parameter of battery charger SC-2288CG8
Items
Parameter
Power supply
110V-240V/50Hz~60Hz
Consumption Rating
200W
Charge quantity
8
MAX charging current of each
unit
700mA
Charging time
About 8~10 hours
Charging status
Red LED flashing –Charging, Green LED –Full
Charged
Operating temperature range
0-40 degree
Dimensions
620×370×175mm
N.W
9kg
1.5 Wireless meeting system Lithium battery
1.5.1 Picture of the actual object
1.5.2 Features of Lithium battery
a. Excellent safety performance, lightweight & High capacity ratio.
b. Improved safety: more resistant to overcharge; less change for electrolyte leakage.
c. The battery life is usually approximately 300 charge cycles.
d. Easy to install
1.5.3 Schematic diagram of Lithium battery

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1) Battery detach/lock button
2) Negative
3) Positive
1.5.4 Parameter of Lithium battery
Items
Parameter
Rated voltage
DC3.7V
Discharge current
＜500mA
Charging current
＜700mA
Time of speaking
＞8 hours
Time of standby
＞24 hours
Charging voltage
DC5V
Dimensions
47×40×12mm
N.W
54g
2. System installation
2.1 Warning
This is a wireless communication system, use UHF band carrier frequency. We recommend that
users consult local radio management committee to choose the appropriate and legally available
frequency, in order to avoid RF interference
If the units demonstrate any problems, such as abnormal sound, smoke, heat from or damage to
power cables, disconnect the power plug from the outlet and contact your sales representative.
If the power plug blades are distorted or discolored, do not use the unit
(Receiver unit, Battery charger)
Uncoil the power cables before use, Do not bundle the cables during use, or fie with nails. (Receiver
unit, Battery charger)
Do not pull on the cable. Hold the plug section and insert/remove it in a straight line, damaged
cables may result in electric shock, malfunction, or fire.
(Receiver unit, Battery charger)
Do not place anything on the power cables. Do not route them under a rug or furniture.
(Receiver unit, Battery charger)
Do not cover the units with cloth or place them in locations with poor ventilation.
Doing so traps heat, and may result in electric shock or fire
If you do not use the units for long periods of time, disconnect the power plugs from the outlet
(Receiver unit, Battery charger)
Do not disassemble the units. Touching the inside of the units may result in electric shock
Do not expose the units to any strong shock
Do not expose the units to direct sunlight, heat from heating appliances, high temperatures, or
dust
Do not expose the units to high humidity or moisture
Water that accidentally enters the inside of the units may result in electric shock, malfunction, or
fire
Do not touch the power cables or plugs with wet band
(Receiver unit, Battery charger)
Main unit is a class I device. Be certain to connect to an AC outlet with a protective grounding
connection
Main unit can be separated from the AC receptacle by turning off the unit by the front power switch.
In case of emergency, turn off this switch or unplug the power cable from the AC receptacle