SHURE PA821B Antenna Combiner User Guide

PA821B Antenna Combiner
User Guide

PA821B Antenna Combiner

Shure PA421B PA821B Antenna Combiner online user guide. Includes how to use multiple transmitters and combiners with an antenna and pecifications Version: 1.3 (2023-A)

IMPORTANT SAFETY INSTRUCTIONS

1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accordance with the manufacturer’s instructions.
8. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other apparatus (in­ cluding amplifiers) that produce heat. Do not place any open flame sources on the product.
9. DO NOT defeat the safety purpose of the polarized or grounding type 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 replace­ ment 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.
15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases, on the apparatus.
16. The MAINS plug or an appliance coupler shall remain readily operable.
17. The airborne noise of the Apparatus does not exceed 70dB (A).
18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connec­ tion.
19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
20. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
21. Operate this product within its specified operating temperature range.

This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
** This symbol indicates that there are important operating and maintenance instructions in the literature accom­ panying this unit.
Waste Electrical and Electronic Equipment (WEEE) Directive
In the European Union and the United Kingdom, this label indicates that this product should not be disposed of with household waste. It should be deposited at an appropriate facility to enable recovery and recycling.
Federal Communications Commission RF Exposure Notice:
Antennas used for the purpose of radiating signals are limited to a maximum gain of 14 dBi. Each antenna must be positioned to observe minimum separation requirements from all users and bystanders. The following guidelines should be used when considering separation distances.
Antennas must be placed such that, under normal conditions, personnel cannot come within 72 cm (~2.5 ft.) from any antenna.
Adhering to this minimum separation will ensure that the employee or bystander cannot exceed RF exposures beyond the maximum permissible limit as defined by 47 CFR 1.1310, i.e., limits for General Population/Uncontrolled Exposure.
WARNING: Voltages in this equipment are hazardous to life. No user­serviceable parts inside. Refer all servicing to qualified service personnel. The safety cer­ tifications do not apply when the operating voltage is changed from the factory setting.
Note:** Use only with the included power supply or a Shure-approved equivalent.

General Description

Shure antenna combiners actively combine RF outputs from multiple wireless IEM transmitters to a single antenna, improving RF performance and conserving 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.

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 distribute power to up to four compatible IEM systems without requiring external power supplies.

Included Components

*(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

① Main Out Antenna Con­ nector| Use the antenna supplied with the transmitter, or any other Shure passive antenna that matches the RF operating range.
---|---
② 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.
③ Fan Vents| For system cooling.
④ 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 connection information.
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 com­ biner to cool. If condition persists, send the unit to Shure Service and Repair.
⑥ Power Switch|

Rear Panels

compatible transmitters
④ RF Inputs| PA421B: Connect up to 4 IEM transmitter outputs
PA821B: Connect up to 8 IEM transmitter outputs

Installation

Rack Mount Instructions

• If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Keep the rack environment temperature at or below the maximum ambient temperature (Tma) specified by the manufacturer of the installed equipment.
• Provide the proper amount of air flow inside the rack as required for safe operation of the equipment.
• Do not create a hazardous condition by mounting the equipment in the rack with an uneven mechanical load.
• When connecting the equipment to the supply circuit, consider the effect that overloading of the circuits might have on over-current protection and supply wiring. Consider all equipment nameplate ratings when addressing this concern.
• Maintain reliable earthing of rack-mounted equipment. Give particular attention to indirect supply connections to the branch circuit (e.g., power strips).

LED Indicators

PA421B and PA421BX
The top 4 RF LED indicators display input signal presence.

• Green = active
• Red = RF input signal overload
• Off = inactive

The bottom 4 LEDs indicate current draw for each DC output.

• Green = Device is powered on.
• Red = Current overload.
• Off = inactive

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.

• Green = active
• Red = RF input signal overload
• Off = inactive

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 Note: Use external power supplies or an optional power distribution cable to supply power to additional transmitters. The PA821B and PA821BX combiners do not supply DC power.
Using Multiple Antenna Combiners with a Single Antenna

Specifications

Dimensions
43 x 401 x 365 mm (1.7 x 15.8 x 14.4 in.), H x W x D
Weight

Operating Temperature Range
-18°C (0°F) to 63°C (145°F)
Power Requirements
100 to 240 V AC, 50­60 Hz
Current Drain

Power Consumption

RF Input
Connector Type
BNC
Configuration
Active
Impedance
50 Ω
RF Gain
0  dB (±2  dB)
RF Input Normal Operating Range
up to +20 dBm max., protected up to +24 dBm
LED Indicator Minimum Detection Threshold to Activate Channel
2.5 dBm
LED Indicator Overload Threshold

24 dBm
Main Output
Connector Type BNC
Impedance
50 Ω
Expansion Port
Connector Type BNC
Configuration
Passive
Impedance
50 Ω
Insertion Loss
<4 dB
DC Outputs (PA421B, PA421BX)
Output Voltage
15 V DC
Output Current
per output
660 mA max.
Output Power
per output
9.9 W
LED Indicator Minimum Detection Threshold
85 mA
LED Overcurrent Indicator
660 mA
RF Frequency Range

Accessories

Furnished Accessories

• (4) 22 in. BNC cables*
• (8) 22 in. BNC cables**
• (1) 11 in. BNC jumper cable
• IEC power cord***
• (4) 2 ft. DC output power jumper cables*

PA421B and PA421BX only
PA821B and PA821BX only
IEC power cord comes standard. Some regions come with multiple cords.

Optional Accessories

• Passive Directional Antenna
• Passive Omnidirectional Antenna
• Helical Antenna
• BNC-terminated Coaxial Cables

Antenna Cables from Shure
Shure offers antenna cables ranging from 6 to 100 feet.
Wireless Accessory Wizard
The Shure Wireless Accessory Wizard is a resource to help determine the correct RF accessories for your wireless system. You provide basic information about your setup and receive item recommendations and connection diagrams. Go to https://www.shure.com/en-US/support/tools/wireless-accessory-wizard to access the Wireless Accessory Wizard.

Information to the user

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause interference with radio and television reception.
Notice: The FCC regulations provide that changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equip­ ment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruc­ tions, 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 de­ termined 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 to 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.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

The equipment is intended to be used in professional audio applications.
For information regarding responsible party and other matters relating to FCC compliance, please contact Shure Incorporated, 5800 W. Touhy Avenue, Niles, Illinois 60714-4608 U.S.A. shure.com/contact Registration, Evaluation, Authorization of Chemicals (REACH) Directive
REACH (Registration, Evaluation, Authorization of Chemicals) is the European Union (EU) and the United Kingdom (UK) chemical substances regulatory framework. Information on substances of very high concern contained in Shure products in a concentration above 0.1% weight over weight (w/w) is available upon request.
Please consider the environment, electric products and packaging are part of regional recycling schemes and do not belong to regular household waste.
LICENSING INFORMATION
Licensing: A ministerial license to operate this equipment may be required in certain areas. Consult your national authority for possible requirements. Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate the equipment. Licensing of Shure wireless microphone equipment is the user’s responsibility, and licensability de­pends on the user’s classification and application, and on the selected frequency. Shure strongly urges the user to contact the  appropriate telecommunications authority concerning proper licensing, and before choosing and ordering frequencies.

Certifications

Conforms to electrical safety requirements based on IEC/EN 62368-1.
Certified under FCC Part 74.
Certified by ISED in Canada under RSS-123.
FCC ID: DD4PA421B. IC: 616A-PA421B.
FCC ID: DD4PA421BX. IC: 616A-PA421BX.
FCC ID: DD4PA821B. IC: 616A-PA821B.
FCC ID: DD4PA821BX. IC: 616A-PA821BX.
This Class B digital apparatus complies with Canadian ICES-003.
Notice: The Industry Canada regulations provide that changes or modifications not expressly approved by Shure Inc. could void your authority to operate this equipment.
This product meets the applicable Innovation, Science and Economic Development Canada technical specifications. Certified by ISED in Canada under RSS-247 and RSS-GEN.
This device contains licence­exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Develop­ ment Canada’s licence­exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

CE Notice:
Hereby, Shure Incorporated declares that this product with CE Marking has been determined to be in compliance with Euro­ pean Union requirements. The full text of the EU declaration of conformity is available at the following site: https://www.shure.com/en-EU/support/declarationsofconformity.
Authorized European Importer / Representative:
Shure Europe GmbH
Department: Global Compliance Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
Email: EMEAsupport@shure.de
UKCA Notice:
Hereby, Shure Incorporated declares that this product with UKCA Marking has been determined to be in compliance with UK­
CA requirements. The full text of the UK declaration of conformity is available at the following site: https://www.shure.com/enGB/support /declarations-of-conformity.

Authorized UK Importer / Representative:
Shure UK Limited
Unit 2, The IO Centre, Lea Road,
Waltham Abbey, Essex, EN9 1 AS, UK

References

• Service
• Documentation Finder - Shure Europe
• Service
• Shure Wireless Accessory Wizard

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