RDL FPMPA2 Data Sheet

FLAT-PAK

™

SERIES

Model FP-MPA2
Dual Phantom Adapter

ANYWHERE YOU NEED...

• Phantom Adapter for Two Mics

• Selectable Phantom Voltage

• 12V, 24V, 48V Phantom

• Selectable Current for 24V Mics

• All Standard Buildout Resistances

• Ultra-Compact All Metal Construction

• Convenience of RDL FLAT-PAKs

You Need The FP-MPA2!

The FP-MPA2 is part of the group of versatile FLAT-PAK products from Radio Design Labs. The unique
FLAT-PAK case can be directly screwed or bolted to cabinets or shelves. Optionally available rack­mounting accessories permit single or multiple FLAT-PAK module mounting. All FLAT-PAK modules are
supplied with a power interconnect cable for daisy-chaining multiple modules from a single power supply.

APPLICATION: The FP-MPA2 is the ideal choice in any applications where phantom power needs to be
provided to powered microphones. Two identical circuits are provided, with connections through XLR
jacks. The microphone is connected to the module through the female XLR jack. The selected phantom
voltage is applied to this jack. The microphone signal output is available on a male XLR. Phantom is
blocked from this output jack. The phantom voltage is individually selectable for each input. A three
position switch is provided for choosing 12 Vdc, 24 Vdc or 48 Vdc. Some microphones operating on 24
Vdc phantom perform optimally with higher value buildout resistances. For these particular 24 Vdc
powered microphones, a second switch is provided to select the optimum current. The appropriate
voltages are generated through a low noise dc-dc converter and regulator circuits. Each phantom output
is short-circuit protected. Power connections are made using either the full-size barrier block terminals or
a dc power jack located in one end panel. A second dc power jack is provided on the other end panel for
connecting additional FLAT-PAK modules.

The FP-MPA2’s low profile and compact size permit mounting in confined spaces and in various locations
in equipment racks. The location of the input/output jacks permits high-density mounting against flat
surfaces while maintaining accessibility to the connectors. Installations requiring multiple FP-MPA2s are
ideally designed using FP-MPA2s affixed to rack sides, or by mounting them to either the front or rear
rack rails using the RDL FP-RRA.

Wherever a microphone phantom adapter is needed to reliably provide any standard regulated low noise
phantom supply voltage, the FP-MPA2 is the ideal choice. Use the FP-MPA2 individually, or combine it
with other RDL products as part of a complete audio/video system.

RDL •• P.O. Box 1286 •• Carpinteria, CA., USA 93014 •• [phone] •• FAX [phone] •• http://www.rdlnet.com

FLAT-PAK

™

SERIES

Model FP-MPA2
Dual Phantom Adapter

2A MAX

INPUT

12V
24V
48V

POWER

MIC 1

LO

OR

24 VDC

POWER

SOURCE

24 VDC

1A MAX

POWER

INPUT

NORMAL

OUTPUT 1

EACH CHANNEL IS

IDENTICAL

12V
24V
48V

MIC 2

POWER

LO

NORMAL

OUTPUT 2

SWITCH SETTINGS

(

= DO NOT CARE)

12V
24V
48V

POWER

LO

NORMAL

Installation/Operation

EN55103-1 E1-E5; EN55103-2 E1-E4

Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.

120 mA

FP-MPA2

CURRENT

OUTPUT

PWR BUS

MICROPHONES

REQUIRING 48 VDC

PHANTOM

Power to Additional

Flat-Pak Modules, Total

Current Not to Exceed 2 A

or Available Supply Current

Signal From Microphone

Other Equipment or

Module Microphone Input

12V
24V
48V

12V
24V
48V

12V
24V
48V

POWER

LO

POWER

LO

POWER

LO

NORMAL

NORMAL

NORMAL

MICROPHONES

REQUIRING STANDARD

24 VDC PHANTOM

MICROPHONES

REQUIRING LOW

CURRENT 24 VDC

PHANTOM (2.4K OHM

BUILDOUT)

MICROPHONES

REQUIRING 12 VDC

PHANTOM

TYPICAL PERFORMANCE

Inputs (2): Low impedance balanced mic
Outputs (2): Mic signal loop-through
Voltage and Buildout Standard: IEC 1938: 1996-12
Phantom Voltages: 12 Vdc, 24 Vdc, 48 Vdc Selectable
Selectable Buildouts (24V only): 1.2 kΩ NORMAL (standard) or 2.4 kΩ LO (low current)
Connector Type: XLR
Power Requirement: 24 Vdc @ 120 mA, Ground-referenced
Overall Dimensions: Height: 1.42 in. 3.61 cm
Width: 3.25 in. 8.26 cm
Length: 6.67 in. 16.94 cm

891-2060A

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Radio Design Labs Technical Support Centers

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