Shure PA421B Handleiding

Shure Niet gecategoriseerd PA421B

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WARNING: This product contains a chemical known to the State of California
to cause cancer and birth defects or other reproductive harm.
General Description
Shure antenna combiners actively combine RF outputs from multiple wireless
IEM transmitters to a single antenna, improving RF performance and conserv-
ing rack space.
Features
• Reduction of intermodulation artifacts for cleaner RF environment
• Wideband operation (470-865 MHz or 865-960 MHz)
• Daisy-chain up to 2 combiners with the expansion port.
• Provide DC power to compatible IEM transmitters.
• LED indications of signal presence, signal overload and current draw
Model Variations
Shure antenna combiners for Shure IEM wireless personal monitoring systems
are available in four-channel and eight-channel rackmountable configurations.
DC Power OutletsRF InputsFrequency RangeModel
44470-865 MHzPA421B
44865-960 MHzPA421BX
08470-865 MHzPA821B
08865-960 MHzPA821BX
The antenna combiners are available in two frequency ranges. The RF inputs
allow up to four or eight (model dependent) IEM systems to share a single
antenna. The DC power outlets and supplied power cables allow you to dis-
tribute power to up to four compatible IEM systems without requiring external
power supplies.
Included Components
DC OUTPUT
MAIN OUT - 50 OHMS
PA4 21B
PSM Antenna Combiner
470- 865 MHz A IN B IN A+B OUT
POWER
EXPANSION PORT
Antenna Combiner
2 ft. DC Power Output Cables* 11 in. BNC Jumper Cables
IEC Power Cable 22 in. BNC Cables**
*(4) 2 ft. DC power output cables are included with four-channel combiners
only.
**The four-channel combiners come with (4) 22 in. BNC cables. The eight-
channel combiners come with (8) 22 in. BNC cables.
Front Panels
INPUT SIGNAL
INPUT SIGNAL
5 6 7 8
MAIN OUT - 50 OHMS
PA821B
PSM Antenna Combiner
470-865 MHz A IN B IN A+B OUT
POWER
EXPANSION PORT
DC OUTPUT
INPUT SIGNAL
MAIN OUT - 50 OHMS
A IN B IN A+B OUT
POWER
EXPANSION PORT
PA421B
PSM Antenna Combiner
470-865 MHz
௟ ௠ ௡ ௢ ௣ ௤
PA421B
PA821B
â‘  Main Out Antenna Connector
Use the antenna supplied with the transmitter, or any other Shure passive antenna that matches the RF operating range.
â‘¡ LED Indicators
The LED indicators on the PA421B and PA421BX display RF signal and DC current draw. The LED indicators on the PA821B and PA821BX display RF signal
only. See the section on LED Indicators for more information.
â‘¢ Fan Vents
For system cooling.
â‘£ Expansion Port
Connect an IEM transmitter or another combiner to share a single antenna. See the Using Multiple Antenna Combiners with a Single Antenna section for con-
nection information.
1/6©2017 Shure Incorporated
PA421B PA821B
Antenna Combiner
⑤ Power LED
Green: Combiner is powered on
Red: Indicates fan fault
Green/red flashing: Maximum temperature has been exceeded
Warning! If maximum temperature has been exceeded, attention is required. Allow the combiner to cool. If condition persists, send the unit to Shure Service
and Repair.
â‘¥ Power Switch
Rear Panels
8 7 6 5 4 3 2 1
ALL DC CONNECTORS USER CLASS 2 WIRING
625
௟ ௠ ௡ ௢௠
PA421B
PA821B
â‘  Power Input
Connects unit to AC power.
â‘¡ Exhaust Air Vents
For system cooling.
â‘¢ DC Power Outputs
Available on the PA421B and PA421BX models for powering compatible transmitters
â‘£ RF Inputs
PA421B: Connect up to 4 IEM transmitter outputs
PA821B: Connect up to 8 IEM transmitter outputs
Powering the Combiners
1. Turn power off before connecting components.
2. Use the supplied power cable to connect the combiner from the power
input to an AC source.
3. Turn on the power switch. The power LED will illuminate.
4. Power the unit off when not in use.
Warning! Opening the unit can result in permanent damage and may result
in an undesirable change in performance. There are no user-serviceable
parts inside.
LED Indicators
PA421B and PA421BX
The top 4 RF LED indicators display input signal presence.
• = activeGreen
• = RF input signal overloadRed
• = inactiveOff
The PA421B and PA421BX combiners supply 15 V at up to 660 mA to each
DC output. These may be used to power compatible Shure IEM transmitters.
The bottom 4 LEDs indicate current draw for each DC output.
• = Device is powered on.Green
• = Current overload.Red
• = inactiveOff
1 2 3 4
DC OUTPUT
1 2 3 4
PA421B and PA421BX
PA821B and PA821BX
The PA821B and PA821BX antenna combiners allow up to 8 transmitters to
share a single antenna. RF LED indicators display input signal presence.
Shure IncorporatedPA421B PA821B Antenna Combiner
2017/10/242/6
• = activeGreen
• = RF input signal overloadRed
• = inactiveOff
1 2 3 4
5 6 7 8
PA821B and PA821BX
Note: A minimum of RF signal is required to activate the channel. See
Specifications page for more information.
Using Multiple Transmitters with a Single Antenna
1. Attach an antenna to the connector of the combiner.MAIN OUT
2. Use the supplied BNC-BNC cables to connect the antenna ports of the
IEM transmitters to the of the antenna combiner.RF INPUTS
3. Use the power cables to route power from the combiner POWER OUT-
PUTS to the DC inputs on each compatible IEM transmitter, if applicable.
Note: Use external power supplies or an optional power distribution cable
to supply power to additional transmitters. The PA821B and PA821BX com-
biners do not supply DC power.
ALL DC CONNECTORS USER CLASS 2 WIRING
625
®
PA421B
PSM Antenna Combiner
470-865 MHz
MAIN OUT - 50 OHMS
INPUT SIGNAL
POWER
EXPANSION PORT
A IN B IN A+B OUT
DC OUTPUT
Four PSM900 transmitters using a single antenna.
Using Multiple Antenna Combiners with a Single Antenna
Use the passive expansion port to share a single antenna with multiple combiners or transmitters.
Shure IncorporatedPA421B PA821B Antenna Combiner
3/62017/10/24

Product specificaties

Merk: Shure
Categorie: Niet gecategoriseerd
Model: PA421B

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