Shure PA421SWB User Manual

Model PA421SWB

PA421SWB

PSM Antenna Combiner

470-952MH

z

MAINOUT

ACTIVE COMBINER

1

2

3

4

50OHMS

POWER

INPUT SIGNAL

User Guide

PA421SWB

Antenna Combiner

27A12082 (Rev. 1) Printed in U.S.A.
©2008 Shure Incorporated

! 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. 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 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 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.

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 connection.

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.

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.

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.

OVERVIEW

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.

POWER

The Shure PA421SWB Antenna Combiners actively combine antenna outputs from up to four PSM wireless transmitters to a single antenna, improving
RF performance and reducing rack clutter.

INSTALLATION

Before installing, set the front panel power switch to OFF. (See Figure 1)1.
Using the supplied power cable connect the unit to an AC power source.2.
To use the device set the front panel power switch to ON. The power light will illuminate.3.
Before disconnecting the unit from the AC power source, or when not in use, power the unit OFF. 4.

PA421SWB Benefits

Reduction of intermodulation artifacts for cleaner RF environment •
and more channels on air

Simplified antenna placement•
Power distribution•

Figure 1

2

Switch Off

4-TO-1 COMBINING FOR PSM TRANSMITTERS

®

PA 805W B

N108

Using the supplied BNC-BNC cables, connect the Antenna Output 1.
of each transmitter to the Antenna Inputs of the PA421SWB (See
Figure 2).

Attach an antenna to the MAIN Out of PA421SWB. For wideband 2.
applications, use PA805SWB directional antenna (Figure 2).

Connect the PA421SWB to a power outlet using one of the supplied 3.
power cables. The PA421SWB contains a universal power supply to
operate anywhere in the world.

If you have a Shure PSM system that has the same power input 4.
connectors as the PA421SWB power outputs, such as the PSM400,
connect the PSM system to the PA421SWB via the supplied power
cables (see figure 2). This replaces the need for an external power
supply.

NOTE: The PA421SWB supplied power is 15 V and up to 660 mA.

Operating Temperature Range

NOTE: Electrical safety approval is based on a maximum ambient

temperature of 30°C.

Overall Dimensions 43.4 mm high x 398.8 mm wide x331.5 mm

Net Weight 4.53 Kg

Input/Output Connector Type BNC-type 4 input, 1 output ACTIVE
Power Outputs (4) 15 VDC, 660 mA each

0° F (-18° C) to +135° F (+57° C)

deep (1 11/16 in. H x 15 11/16 in. W x

(10 lbs unpackaged, without power and

13 1/2 in. D)

RF cables)

FURNISHED ACCESSORIES

(4) 2 ft. Coaxial Cable (RG58C/U)
(4) 2 ft. Output Power Cable 95B8420
120 VAC Power Line Cord 95A8389
230 VAC Power Line Cord 95A8247
240 VAC Power Line Cord (U.K.) 95A8713

UA802

OPTIONAL ACCESSORIES

AC Power

PSM Transmitters

50Ω BNC

Figure 2

NOTE: When the PA421SWB is powered on, the input signal
indicators (1-4) on the front panel will illuminate if an active
transmitter is connected to the corresponding input (1-4) on the
back panel (Figure 2).

SPECIFICATIONS

RF Carrier Frequency Range
System Gain +0/-5 dB
Input AC Line Voltage 100-240 Vac, 50/60 Hz
Maximum Input Line Power 120 W
Maximum Current Drain 0.42-1.0 Amperes

(Amperes = 100 VA/Input AC Line Voltage)

Maximum RF Input Power 24 dBm (250 mW) per channel

Input Signal Indicator
Threshold

Impedance

+4 dBm (2.5 mW), +2 dBm (1.6 mW) typical

470-952 MHz

50Ωnominal

Wideband Unidirectional Antenna
(470-952 MHz)

10 ft. Coaxial Cable (RG-8X/U) PA725
25 ft. Coaxial Cable (RG-8X/U) UA825
50 ft. Coaxial Cable (RG-8X/U) UA850

Wide Band Omnidirectional Antenna
(470-1100 MHz)

Helical Antenna HA-8089 (480-900 MHz)

HA-8241(944-952 MHz)

PA805SWB

UA860SWB

CERTIFICATIONS

PA421SWB: Certified to FCC Part 74 (FCC ID No. DD4PA421SWB).
Certified in Canada by IC to RSS-123 AND RSS-102 (Certification No.
IC: 616A-PA421SWB). UL LISTED to UL60065, 7th Edition and cUL
LISTED to CAN/CSA E60065-00. Meets the Essential Requirements of
the European R&TTE Directive 99/5/EC, eligible to bear CE mark. Meets
EMC requirements of EN 301 489 Parts 1 and 9 and is GS-Certified to EN
EN60065, 7th Edition. Conforms to Australian EMC requirements, eleigible
to bear C-Tick mark (N108).

LICENSING

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.

THIS RADIO EQUIPMENT IS INTENDED FOR USE IN PROFESSIONAL
ENTERTAINMENT AND SIMILAR APPLICATIONS.

NOTE
THIS EQUIPMENT MAY BE CAPABLE OF OPERATING ON SOME
FREQUENCIES NOT AUTHORIZED IN YOUR REGION. PLEASE
CONTACT YOUR NATIONAL AUTHORITY TO OBTAIN INFORMATION
ON AUTHORIZED FREQUENCIES FOR WIRELESS MICROPHONE
PRODUCTS IN YOUR REGION.

Licensing: Note that a ministerial license to operate this equipment may
be required in certain areas. Consult your national authority for possible
requirements.

3

www.shure.com

United States:

Shure Incorporated
5800 West Touhy Avenue
Niles, IL 60714-4608 USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]

©2008 Shure Incorporated

Europe, Middle East, Africa:

Shure Europe GmbH
Wannenäckestr. 28,
74078 Heilbronn, Germany

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Asia, Pacific:

Shure Asia Limited
Unit 301, 3rd Floor
Citicorp Centre
18, Whitfield Road
Causeway Bay, Hong Kong

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Canada, Latin America,
Caribbean:

Shure Incorporated
5800 West Touhy Avenue
Niles, IL 60714-4608 USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]