Honeywell KMA28 operation manual Specifications, TSO Compliance

Page 6

Bendix/King

KMA28

Audio Amplifier/Intercom/Marker Beacon Receiver

1.5 SPECIFICATIONS

TSO COMPLIANCE

Marker Beacon:

C35d, Class A

Audio Selector/Intercom:

C50c, Class A

APPLICABLE DOCUMENTS:

RTCA/DO-214

 

RTCA/DO-143

 

RTCA/DO-160C

 

RTCA/DO-178B

ENVIRONMENTAL Qualifications:

A1D1/CA(MN)XXXXXXBBBBTBKXX

Temperature Range:

 

Operating:

-15º C to +55ºC

Storage:

-55º C to +85ºC

Altitude:

Up to 50,000 feet in an non-pressurized area of

 

the cockpit.

DIMENSIONS:

Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm)

 

Depth: 6.8 in. (17.3 cm)

WEIGHT (With Rack & Connectors):

1.5 lb. (0.54 kg)

POWER REQUIREMENTS

(Including Internal Lighting):

Voltage:

11 to 33 VDC

Maximum Current:

2.5 Amp (Externally protected by a 3 Amp circuit

 

breaker.)

Typical operating current:

 

Speaker off:

350 mA

Speaker on, 28V, full radio volume

1.5 A

Audio Selector Specifications

Audio selector panel input impedance:

510 Ω

Input Isolation:

-60 dB (min.)

Speaker Muting:

-60 dB (min.)

Speaker Output (into 4 Ω ) with no clipping

3 Watts (min.)

14 VDC:

28 VDC:

10 Watts (min.)

Receiver Inputs:

9

 

(Com 1, Com 2, Com 3, Nav 1, Nav 2, ADF,

 

DME, MKR, AUX)

Unswitched Inputs:

2

 

(examples: GPS WPT, Value, Autopilot Discon-

 

nect, Altimeter DH)

Transmitter Selections:

6

 

(Com 1, Com 2, Com 3

 

Com1/2, Com2/1, Telephone)

Speaker Impedance:

4 Ω

Headphone Impedance:

150 - 1000 Ω

Headphone Output:

38 mW each headset, no clipping <1% THD

 

70 mW each headset with < 10% THD into 150Ω

Microphone Impedance:

150 - 600 Ω

006-10565-0000

Page 1-3

Rev. 0, Sept. 2000

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Contents BENDIX/KING Table of Contents Cellular Interface Checkout Scope Section I General InformationIntroduction Equipment DescriptionApproval Basis TSO ApprovalSpecifications TSO ComplianceIntercom Specifications Equipment SuppliedEquipment Required but not Supplied License RequirementsGeneral Information Section II InstallationEquipment Installation Procedures Unpacking and Preliminary InspectionCable Harness Wiring Mounting Rack InstallationConnector Assembly NoisePower Existing KMA-24 InstallationExisting PS Engineering PMA6000 installations Communications Push-to-TalkIntercom wiring Swap ModeUnswitched inputs BacklightingCom 3 Audio Public Address functionMarker Installation Adjustments Communications Antenna Installation NotesWireless telecommunications interface Hook Switches KMA 28 Pin Assignments Post Installation Checkout Unit InstallationOperational Checkout Cellular Interface Checkout Marker CheckoutReceiver Sensitivity Final InspectionKey click Section III KMA28 OperationAudio Selector Speaker AmplifierPower Switch /Emergency EMG Operation Public Address PA FunctionMicrophone Selector Split Mode ICS Swap Mode Switch from Com 1 to Com 2 remotelySplit Mode Telephone ModeIntercom System IntelliVox VOX-SquelchVolume Control Mono headsets in Stereo InstallationIntercom Modes Soft Mute and Soft Mute inhibit Marker Beacon Operation Telephone Operation if equipped with approved systemWill lose intercom capability when it is in use Connector viewed from the rear Appendix a Installation DrawingsTray Dimensions in inches Top View Tray Assembly Drawing Appendix B Bottom Connector Interconnect Bottom Connector, J1Appendix C Top Connector Interconnect J2 TOP ConnectorInstructions for Continuing Airworthiness Instructions for FAA FormConditions Section Conducted Tests
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