COBHAM AVIATOR 700 Equipment Manual

Brand: COBHAM

Model: AVIATOR 700

Type: Equipment Manual

DOCUMENT NUMBER 700-16-1 REVISION 1.10

EQUIPMENT MANUAL

Product Functional Specifications

and Installation Manual

DIGITAL AUDIO CONTROL AMPLIFIER

MODEL 700-[ ]

AND

ALL DETAIL PART NUMBERS

For Cobham Use Only

CONFIDENTIAL AND PROPRIETARY TO COBHAM

IMPORTANT NOTICE

Chelton Avionics Inc. doing business as

Wulfsberg Electronics Inc. doing business as

Cobham Avionics will be responsible for full

distribution and revisions of ICA's (Instructions

for Continued Airworthiness).

SEALED

2010.10.26 

10:42:26 

-07'00'

EQUIPMENT MANUAL 700-16-1 REV 1.10

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Page a

CHANGE RECORD

DATE CHANGE CHECK APPROVAL

3-11-03

ORIGINAL DOCUMENT RELEASED

AP AP

4-13-05

REVISION A:

Throughout this document: NAT Seattle was

dB Systems. (Type IV)

Incorporated 700-008 to Table A. (Type IV)

SS AP

10-20-05

REVISION B:

Section 1.0: Added TSO installation limitation

statement.

Figure 3: Changed title to “generic”. Revised

Figure 3 drawing to show Model 80x Switch

Panels, 700-xxx Digital Audio Control

Amplifier, and 630-xxx Aural Warning

Generator.

(Type IV)

SF AP

11-1-05

REVISION C:

Table A:

700-008 MOD status was listed as No MOD

(typo). (Type IV)

SF ZHP

06-29-09

REVISION 1.04:

Incorp. ECR2 700-16. Added Model 700-009

to Table A. Updated NAT logo. Added

Confidential and Proprietary notice.

SC AP

SEE TITLE

PAGE

REVISION 1.10:

Incorporated ECR3 700-16. Updated Figure

1 to current rev. Cobham was NAT Seattle.

Added ICA responsibility notice to front

cover.

Geoff Melton

2010.10.06 

14:26:32 -07'00'

Edward 

Uy

2010.10

.11 

12:24:3

7 -07'00'

Zack Pahlman

2010.10.25 13:49:30 

-07'00'

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TABLE OF CONTENTS

Page

MODEL 700 DETAIL PART NUMBER DESCRIPTIONS..........................................c

1.0 OPERATING INSTRUCTIONS AND EQUIPMENT LIMITATIONS.................1

2.0 SPECIFICATIONS.........................................................................................3

3.0 INSTALLATION PROCEDURES, WIRING DIAGRAMS,

AND LIMITATIONS........................................................................................6

3.1 PHYSICAL DESCRIPTION....................................................................6

3.2 ELECTRICAL DESCRIPTION...............................................................6

4.0 CALIBRATION AND MAINTENANCE PROCEDURES..................................7

Tables

Table A Detail Part Numbers....................................................................................c

Table 1 Pin Identification List, Numerical..................................................................7

Table 2 Environmental Qualification Form................................................................15

Figures

Figure 1 Outline, Model 700 and all detail part numbers...........................................8

Figure 2 Model 700 Wiring Diagram .........................................................................9

Figure 3 Typical Model 700 installation schematic....................................................12

Figure 4 Mounting Rack for Model 700, S-TEC P/N 628-7558-001...........................14

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MODEL 700 DETAIL PART NUMBER DESCIRIPTIONS

The detail part numbers associated with the Model 700 Digital Audio Control Amplifier may define

different level adjustments or test procedures than those outlined in dB Systems’ Document

Number 700-4 and this document. Table A describes those differences.

NOTE: A Model 700 with an associated detail part number is designated as a Model 700-XXX,

where XXX is the applicable detail part number.

Table A. Detail Part Numbers

Detail Part Number Description of Detail

Basemodel 700 Base model. MOD status C. Reference Appendix A.

001 DELETED

002 Physically and electrically identical to base Model 700;

designated for Learjet Model 60 levels. Levels no different than

those of base Model 700.

Throughout this document:

- Substitute "Model 700-002" in place of references to

"Model 700."

MOD status: B

003 Levels set for special mission Learjet 35 with 4-station

interphone.

Throughout this document:

- Substitute "Model 700-003" in place of references to

"Model 700."

MOD status: B

004 Levels set for special mission Hawker U125A with 6-station

interphone and customized receiver levels.

Throughout this document:

- Substitute "Model 700-004" in place of references to

"Model 700."

MOD status: C

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Table A. Detail Part Numbers (continued)

Detail Part Number Description of Detail

005 Physically and electrically identical to base Model 700;

designated for Raytheon Hawker 800XP. Levels no different

than those of base Model 700.

Throughout this document:

- Substitute "Model 700-005" in place of references to

"Model 700."

MOD status: D

006 Designated for Raytheon PFP3 King Air. Levels no different

than those of base Model 700. No difference in test procedure

Throughout this document:

- Substitute "Model 700-006" in place of references to

"Model 700."

MOD status: B

007 Calibrated for Raytheon Hawker 800XP

Throughout this document:

- Substitute "Model 700-007" in place of references to

"Model 700."

MOD status: C

008

Calibrated for Raytheon Premier 1.

Throughout this document:

- Substitute "Model 700-008" in place of references to

"Model 700."

MOD status: A

009

Calibrated for Raytheon Hawker 400XPI.

Throughout this document:

- Substitute "Model 700-009" in place of references to

"Model 700."

- Reference Appendix I.

MOD status: None

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EQUPMENT MANUAL

MODEL 700-[ ]

1.0 OPERATING INSTRUCTIONS AND EQUIPMENT LIMITATIONS

This document makes references to dB Systems, Inc. and NAT Seattle, Inc. Please note that

dB Systems, Inc. and NAT Seattle, Inc. have been changed to Cobham. For all references to

dB Systems, Inc. or NAT Seattle, Inc. herein, substitute Cobham.

The conditions and tests required for TSO approval of this article are minimum performance

standards. It is the responsibility of those installing this article either on or within a specific type

or class of aircraft to determine that the aircraft installation conditions are within the TSO

standards. TSO articles must have separate approval for installation in an aircraft. The article

may be installed only if performed under 14 CFR part 43 or the applicable airworthiness

requirements.

The Model 700 Digital Audio Control Amplifier is a remotely controlled electronic unit that operates

upon digital signal command sent to it by the digital multiplexing unit or switch panel at its

respective audio control station. An example of such a switch panel would be Model 803. The

digital multiplexing unit or switch panel continuously reads the status of all audio control switches

and settings of potentiometers and compiles this information into the form of a digital signal. The

digital signal is sent to the Model 700 from the digital multiplexing unit or switch panel in RS-422

serial format via a twisted, shielded wire pair. The Model 700 receives and demultiplexes this

digital signal and converts it into useful audio control information.

The Model 700 is capable of switching and controlling the individual volume of up to 15 receiver

inputs. It also switches six sidetone inputs and an interphone line. In addition, four unswitched

and unmuted inputs are provided to accommodate an aural warning input and three auxiliary

inputs. Headphone and selected speaker outputs are isolated and a cockpit voice recorder (CVR)

output is a summation of the headphone and Hot microphone audio. The Hot microphone to CVR

audio channel is unswitched and unmuted, thus allowing Hot microphone audio to be recorded on

the cockpit voice recorder at all times. A pilot select COMM output is a summation of all selected

receiver inputs, excluding aural warning, auxiliary, sidetone, or interphone audio.

Receiver, sidetone, headphone, interphone and speaker audio, and all operating modes are

electronically switched and controlled by the digital signal information sent from the digital

multiplexing unit or switch panel. An electronic volume control attenuator is employed in each of

the 15 receiver audio input channels. Every receiver input attenuator has 25 dB of range and is

digitally controlled. Separate electronic volume control attenuators are provided for headphone

audio (35 dB range), speaker audio (35 dB range), sidetone audio (25 dB range), and interphone

audio (25 dB range). These volume control attenuators are also digitally controlled. Refer to the

applicable multiplexing unit or switch panel equipment manual for specific information on control

hardware required. Aural warning, auxiliary, CVR, and pilot select COMM audio channels do not

employ any individual electronic volume control attenuators; however, the volume of some CVR

audio is directly affected by the headphone volume control.

A voice activated switch (VAS or VOX) is incorporated in series with the Hot microphone input to

interphone channel. This feature allows Hot interphone operation without coupling of ambient

cockpit noise into the amplifier during times when the pilot is not talking. If the internal VAS pot

jumper is installed at the mating connector (see Figure 2, Wiring Diagram), then the threshold of

voice activation may be adjusted by an internal screwdriver adjustment through a hole in the cover

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labeled "VOX THLD." It is factory set at 100 millivolts and adjustable from 30 to 350 millivolts.

The VAS is not incorporated in series with the Hot microphone input to CVR output channel.

Selective voice or ident code filtering is provided on four of the receiver audio inputs, intended for

NAV and ADF audio. The filter function is also digitally controlled.

The speaker amplifier in the Model 700 is rated at 10 Watts into 4 ohms. This is a peak rating

intended for speech and music. The continuous rating of the amplifier is 1 Watt into 4 ohms for

sine wave operation. The speaker channel is powered through an internal fuse, separate from the

headphone channel, so that a severe failure of the speaker channel will not simultaneously

disable the headphone channel.

All outputs (including the headphone and speaker outputs) of the Model 700 are both open and

short circuit protected.

All internal screwdriver potentiometer adjustments of the Model 700 are set to factory standards.

Some adjustments can be made through access holes in the cover. If it is necessary to change a

setting, refer to Section II of this manual.

The amplifiers are adjusted for acceptable listening output levels into the proper loads with

receiver inputs of 7.75 volts RMS. This input level is realized when receivers are set for 100

milliwatts into 600 ohms. If 7.75 volts RMS is greatly exceeded at the inputs, the audio will

become distorted due to peak clipping and audio bleedthrough will be noticed. However, the

amplifiers will not be damaged. Input levels can vary with detail part number. Refer to ATP 700-4.

An important feature of the Model 700 is its two different emergency modes of operation. In the

first mode, when there is an interruption of supply power to the unit, the Model 700 will

automatically pass COMM-1 and COMM-1 sidetone audio through to the headphone output with

23 dB of attenuation into the 150-ohm headphone load. In the second mode of operation, when

there is no loss of supply power to the Model 700 but there is a loss of digital communications

between the digital multiplexing unit or switch panel and the Model 700, the Model 700

automatically turns ON COMM-1 and COMM-1 sidetone audio channels and turns OFF all other

receiver/sidetone inputs so that only COMM-1 communications can be heard on the headphone

output. During this mode of operation, headphone volume level is maintained at the same setting

realized immediately prior to loss of digital communications. Also, aural warning and auxiliary

audio is provided to the headphone and speaker outputs as normal. A loss of digital

communications can occur if the digital multiplexing unit or switch panel lose power or if the

twisted, shielded wire pair carrying digital information is somehow disconnected or severed.

Normal operating modes of the Model 700 are listed below and are established when the

appropriate digital multiplexing unit or switch panel digital signal is sent to the Model 700.

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Multiplexing Unit or

Switch Panel Control Function

Speaker switch Connects selected audio to the cockpit speaker.

INPH Hot switch Connects Hot microphone input to the interphone line if the

PTT switch is not selected.

INPH to speaker switch Usually used as a function of the Oxy MIC select mode -

connects interphone audio to cockpit speaker if speaker

switch is also selected.

INPH listen Connects interphone audio to headphone; PTT switch has

no effect to mute.

PTT switch Opens the Hot microphone to interphone channel and

mutes the speaker output receiver audio.

Voice switch Enables notch filter to reject ident tone and pass voice audio

from NAV and ADF audio inputs.

Ident switch Enables bandpass filter to emphasize ident tone and reject

voice audio from NAV and ADF audio inputs.

Receiver switches Connects selected receiver and sidetone audio to the

internal attenuating, mixing, filtering, and amplifying circuitry.

PA key Connects PA sidetone input to the headphones, CVR, and

cockpit speaker (if speaker switch is selected).

2.0 SPECIFICATIONS

The Model 700 is intended for aircraft with two cockpit audio stations. Two Model 700 amplifiers

are installed, one for each audio station. The receiver outputs are connected to both Model 700

receiver inputs. The receiver input impedance of the Model 700 is 2,000 ohms, so when the two

amplifiers are installed and each receiver is connected to both amplifier inputs in a parallel

fashion, the receiver sees 1,000 ohms. Input specifications are expressed in volts RMS, rather

than milliwatts, to avoid any misunderstanding.

INPUTS:

COMM: Five dual audio inputs for receiver and sidetone. Receiver input level is

7.75 V

RMS

and sidetone is 3.90 V

MRS

, both are switched simultaneously.

Input levels can vary with detail part number. Refer to ATP 700-4.

PA SDTN: This is a switched audio input intended for an audio sidetone signal

produced from MIC (PA) to cabin paging. Input level is 2.00 V

RMS

RCVR: Six single, switched audio inputs for MKR, DME, SPARE, etc. Input level is

7.75 V

RMS

. Input levels can vary with detail part number. Refer to ATP

700-4.

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FLTR: Four single, switched audio inputs for NAV, ADF, etc. 7.75 V

RMS

inputs have selective filtering, switched by the voice-both-ident switch

connected to the digital multiplexing unit or on the switch panel. Input levels

can vary with detail part number. Refer to ATP 700-4. The following

shows filter operation with the selected position of the switch:

Voice: 1,020 +5 Hz, 30 dB minimum 100 Hz notch.

Both: No filter; normal bandwidth operation.

Ident: 1,020 +5 Hz ident tone emphasis.

HOT MIC: The Hot microphone input, used for interphone mode and CVR microphone

recording, supplies microphone bias and is compatible with carbon and

amplified dynamic microphones. Microphone audio from this input is

channeled directly to the CVR output amplifier and is channeled through a

voice activated switch (VAS) to the interphone amplifier output. Voice

activation occurs within 1.5 milliseconds after speech begins. 30 dB

minimum attenuation from microphone input to interphone amplifier output

is provided within 2 seconds after speech is discontinued. The VAS feature

has an adjustable 30 to 350 millivolt microphone input threshold range,

controlled either internally or externally.

AUX: Three unswitched and unmuted auxiliary inputs, two factory set to

accommodate 1.00 V

RMS

, one factory set to accommodate 5.00 V

RMS

Potentiometer screwdriver adjustments accessible through holes in the

cover may be used to vary auxiliary and aural warning levels on either

speaker or headphone outputs. Input levels can vary with detail part

number. Refer to ATP 700-4.

AW: This is an unswitched and unmuted input intended for aural warning tones,

factory set to accommodate 1.00 V

RMS

, adjustable. Input levels can vary

with detail part number. Refer to ATP 700-4.

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OUTPUTS:

SPEAKER: The speaker amplifier is designed for speech signals and has both a rated

power and a continuous power specification. The continuous rating is the

power the amplifier can continuously deliver with a sine wave. The rated

power specification is the peak power it can deliver without clipping. Bench

testing and adjustment may require brief periods of sine wave operation

above the continuous rating; those periods should be limited to 1 minute to

prevent amplifier damage.

Load Rated Power Continuous Power

4 ohms 10 Watts 1 Watt

8 ohms 8 Watts 0.8 Watt

HEADPHONE: The headphone amplifier has a rated power specification of 107 milliwatts

into 150 ohms and a continuous power specification of 27 milliwatts into

150 ohms.

COCKPIT

VOICE

RECORDER: This output will deliver 1.5 milliwatts into 600 ohms continuously. Rated

and continuous power ratings are the same. The Hot microphone input

audio is channeled directly to the cockpit voice recorder output amplifier.

PILOT

SEL COMM: This output will deliver 1.5 milliwatts into 600 ohms continuously. Rated

and continuous power ratings are the same.

INTERPHONE: This output will deliver 1.5 milliwatts into 430 ohms continuously. Rated

and continuous power ratings are the same.

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VOLUME CONTROLS:

HEADPHONE: Controls level of all 15 receiver audio inputs and interphone audio to the

headphone and cockpit voice recorder outputs. Volume control range is 35

dB (minimum) controlled by a 1,000-ohm, 1/2-Watt, linear taper pot

connected to the digital multiplexing unit or on the switch panel. Maximum

volume is provided with maximum resistance.

SPEAKER: Controls level of all 15 receiver audio inputs and interphone audio to the

speaker output. Range and control same as headphone volume

specification.

RECEIVER: (One electronic attenuator per receiver input). Controls level of the

respective receiver audio input before subject to control of the headphone

or speaker volume controls. Volume control range is 25dB (minimum)

controlled by a 1,000-ohm, 1/2-Watt, linear taper pot connected to the

digital multiplexing unit or on the switch panel. Maximum volume is

provided with maximum resistance.

SIDETONE: Controls level of all six sidetone audio inputs to the speaker, headphone,

and cockpit voice recorder outputs. Range and control same as receiver

volume specification.

INTERPHONE: Controls level of interphone audio input to the speaker, headphone, and

cockpit voice recorder outputs. Range and control same as receiver

volume specification.

FREQUENCY RESPONSE: Flat within 3 dB from 350 Hz to 6,000 Hz.

HARMONIC DISTORTION: Less than 3 percent, all outputs.

ISOLATION BETWEEN CHANNELS: 60 dB minimum (90 dB Typical)

OUTPUT NOISE: Greater than 65 dB below rated power, all outputs.

POWER SUPPLY: 28 VDC, 1 ampere maximum. 2 to 5A circuit breaker recommended.

OPERATING TEMPERATURE: From -55 to +70 degrees C.

OPERATING ALTITUDE: To 70,000 feet.

TEST SPECIFICATION: Tested under environmental conditions and test procedures per RTCA

DO-160C and qualified to categories as listed in Table 2 of this manual. Software qualified to

Level 2 (essential) category in accordance with RTCA DO-178A.

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3.0 INSTALLATION PROCEDURES, WIRING DIAGRAMS, AND LIMITATIONS

3.1 PHYSICAL DESCRIPTION

Installation dimensions are shown on the Model 700 outline on Figure 1. The amplifier enclosure

is designed for installation in a S-TEC tray assembly part number 628-7558-001 (or equivalent).

The unit and tray assembly may be mounted in any position compatible with the tray assembly

because the unit fits into the tray assembly in only one position. If possible, it is recommended to

mount the unit and tray assembly so that the unit may be easily removed from the aircraft for

service or the level adjustment access holes on the unit are easily reached without removal of the

unit. No shock or vibration isolators are required for mounting.

The amplifier and the tray assembly may be mounted to a metal, plastic, or composite surface;

however, it is absolutely necessary to ground the tray assembly to the metal aircraft ground

structure, thus grounding the enclosure of the amplifier when mounted into the tray assembly.

When mounting to a plastic or composite surface, use a grounding strap. The amplifier enclosure

is finished with an electrically conductive film. It is not necessary to remove the film for electrical

bonding to the tray assembly.

3.2 ELECTRICAL DESCRIPTION

Connections to the amplifier are made through one "D" subminiature connector. The mating

connector, manufactured by Positronic Industries, Inc., has a part number for the complete

latching connector assembly. The part number is as follows:

Amplifier Connector Positronics Mating Connector Part No.

P1 (62 pin) DD62F10JVLO

Numerical pin identification is shown in Table 1 and the wiring diagram is shown on Figure 2.

Shielded wire must be used where indicated on the diagrams. AWG 24-26 size wire should be

used for all connections except those to the input supply power, power ground, chassis ground

and speaker amplifier output, where AWG 20-22 size should be used at pins 22, 50, 51, 53, and

54 of P1.

The power return lead (pin 54) should be a maximum of 1 meter in length. It is also

recommended that pin 26 (AUX/AW Audio Comm.) be grounded at the same location as the

power return lead.

The only control connections made to the Model 700 are those for either internal or external Voice

activated switch control and the digital multiplexed data lines from the digital multiplexing unit or

switch panel (A generic 800 series switch panel is depicted in the wiring diagram, Figure 2). All

other connections to the Model 700 are strictly either power and grounds or audio inputs and

outputs as shown on Figure 2 of this manual. Refer to the applicable multiplexing unit or switch

panel equipment manual for specific information on all other control connections required.

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Table 1. Pin Identification List, Numerical

(P1 - 62-pin connector)

PIN NAME

P1-1 CVR HI

P1-2 HDPH HI

P1-3 Emergency Switch

P1-4 COMM-5 HI

P1-5 SPARE-2 HI

P1-6 SPARE-1 HI

P1-7 COMM-4 HI

P1-8 COMM-3 HI

P1-9 MKR-2 HI

P1-10 MKR-1 HI

P1-11 COMM-1 SDTN HI

P1-12 COMM-1 HI

P1-13 COMM-2 HI

P1-14 DME-2 HI

P1-15 DME-1 HI

P1-16 COMM-5 SDTN HI

P1-17 COMM-2 SDTN HI

P1-18 COMM-4 SDTN HI

P1-19 COMM-3 SDTN HI

P1-20 PA SDTN HI

P1-21 NAV-2 HI

P1-22 Chassis Ground

P1-23 Pilot Select COMM LO

P1-24 CVR LO

P1-25 HDPH LO

P1-26 AUDIO COMMON

P1-27 COMM-5, COMM-5 SDTN LO

P1-28 SPARE-2 LO

P1-29 SPARE-1 LO

P1-30 COMM-4, COMM-4 SDTN LO

P1-31 COMM-3, COMM-3 SDTN LO

PIN NAME

P1-32 MKR-2 LO

P1-33 MKR-1 LO

P1-34 COMM-1, COMM-1 SDTN LO

P1-35 COMM-2, COMM-2 SDTN LO

P1-36 DME-2 LO

P1-37 ADF-2 LO

P1-38 NAV-1 LO

P1-39 ADF-1 LO

P1-40 NAV-2 LO

P1-41 ADF-2 HI

P1-42 NAV-1 HI

P1-43 Pilot Select COMM HI

P1-44 INPH HI

P1-45 INPH HI

P1-46 INPH Squelch (VOX Threshold)

P1-47 HOT MIC HI

P1-48 HOT MIC LO

P1-49 Emergency 28 VDC

P1-50 28 VDC

P1-51 SPKR LO

P1-52 Internal INPH VOX Threshold Pot

P1-53 SPKR HI

P1-54 Power Ground

P1-55 MUX Data LO

P1-56 MUX Data HI

P1-57 DME-1 LO

P1-58 AUX-3 HI

P1-59 AUX-2 HI

P1-60 AUX-1 HI

P1-61 AURAL WARNING HI

P1-62 ADF-1 HI

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4.0 CALIBRATION AND MAINTENANCE PROCEDURES

Calibration procedures are included in Document No. 700-4, Acceptance Test Procedure.

No scheduled maintenance is required for the Model 700-[ ]. Assembly drawings, parts lists, and

schematics are included in this manual for use during troubleshooting and repair.

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SPKR

VOX THLD

SPKR MUTE

AW/AUX

HDPH

CVR

AW/AUX

COMM

PLT SEL

FILTER

10.450

5.100

1.130

VERIFY PROPER PIN ALIGNMENT

WHEN INSTALLING CONNECTOR

CAUTION

Figure 1. Outline

Drawing

NOTE: The detail part

number is stamped into

the detail block on the

nameplate

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POWER RETURN.

20-22 AWG MIN.

MAXIMUM LENGTH

1 METER.

HAND MIC PTT IN

YOKE PTT IN

TO HAND MIC JACK TIP

(KEY GND)

PTT KEY SW (YOKE)

OPTIONAL EXTERNAL

VOX THRESHOLD POT

(pins P1-46 and P1-52

not connected)

10 KOHM

P1-44/45INPH HI

COPILOT MODEL 700

INTERNAL INPH VOX THLD ADJUST

INPH SQUELCH (VOX THRESHOLD)

P1-52

P1-46

P1-44/45 INPH HI

ACCESS HOLE LABELED "VOX THLD"

HAND

MIC

OXY

MIC

NORM

MIC

MODEL 8XX

SWITCH PANEL

MUX DATA OUT

HOT MIC OUT

MICS IN

MUX DATA IN LO

MUX DATA IN HI

P1-55

P1-56

HOT MIC LOP1-48

P1-47 HOT MIC HI

EMERGENCY

NORMAL

P1-3

P1-49

EMERGENCY MODE SWITCH

EMERGENCY 28 VDC (ISOLATED)

MODEL 700 AMPLIFIER

CHASSIS GROUNDP1-22

POWER GROUND

28 VDC POWER INPUT

P1-54

P1-50

CIRCUIT BREAKER

POWER

SOURCE

28 VDC

(+)

(-)

Figure 2. Wiring Diagram

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NAV-2 LO

NAV-2 HI

P1-40

P1-21

MODEL 700 AMPLIFIER

VOICE / IDENT

FILTERED

INPUTS

P1-41

P1-37

ADF-2 HI

ADF-2 LO

ADF-1 LO

ADF-1 HI

P1-39

P1-62

NAV-1 LO

NAV-1 HI

P1-38

P1-42

P1-4

P1-27

P1-16

COMM-5 HI

COMM-5 & COMM-5 SDTN LO

COMM-5 SDTN HI

COMM-4 SDTN HI

COMM-4 & COMM-4 SDTN LO

COMM-4 HI

P1-18

P1-30

P1-7

P1-8

P1-31

P1-19

COMM-3 HI

COMM-3 & COMM-3 SDTN LO

COMM-3 SDTN HI

COMM-2 SDTN HI

COMM-2 & COMM-2 SDTN LO

COMM-2 HI

P1-17

P1-35

P1-13

P1-12

P1-34

P1-11

COMM-1 HI

COMM-1 & COMM-1 SDTN LO

COMM-1 SDTN HI

NAV-1

RCV'D AUDIO HI

AUDIO LO

RCV'D AUDIO HI

COMM-5 (XCVR 5)

TYPICAL RECEIVER CONNECTION

TRANCEIVER CONNECTIONS

XMT SIDETONE AUDIO

AUDIO LO

RCV'D AUDIO HI

COMM-4 (HF 2)

COMM-3 (HF 1)

RCV'D AUDIO HI

AUDIO LO

XMT SIDETONE AUDIO

AUDIO LO

RCV'D AUDIO HI

COMM-2 (VHF 2)

COMM-1 (VHF 1)

RCV'D AUDIO HI

AUDIO LO

XMT SIDETONE AUDIO

Figure 2. Wiring Diagram (continued)

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MODEL 700 AMPLIFIER

DME-1 LO

DME-1 HI

P1-57

P1-15

P1-14

P1-36

DME-2 HI

DME-2 LO

P1-9

P1-32

MKR-2 HI

MKR-2 LO

MKR-1 LO

MKR-1 HI

P1-33

P1-10

P1-6

P1-29

SPARE-1 HI

SPARE-1 LO

SPARE-2 LO

SPARE-2 HI

P1-28

P1-5

SEE TYPICAL

RECEIVER CONNECTION

(MLS-1)

(MLS-2)

P1-26 AUDIO COMMON

AURAL WARNING IN HIP1-61

P1-60

AUX 1 AUDIO SOURCE

AUX-1 IN HI

AUX-2 IN HI

AUX 2 AUDIO SOURCE

P1-59

P1-58 AUX-3 IN HI

P50-11/12AURAL WARNING OUT LO

AURAL WARNING OUT HI P50-22/23

MODEL 603 OR 630 AURAL WARNING

TONE GENERATOR

PILOT SEL COMM IN HI

PA SIDETONE OUT HI P50-35

P50-19

MODEL 240 OR 250 PASSENGER

SPEAKER AMPLIFIER

PILOT SELECT COMM OUT HIP1-43

PA SIDETONE IN HIP1-20

P1-23 PILOT SELECT COMM OUT LO

AUX 3 AUDIO SOURCE

COCKPIT VOICE RECORDER

INPUT HI

INPUT LO

P1-1

P1-24

CVR OUT HI

CVR OUT LO

OUTPUT HI

OUTPUT LO

OUTPUT HI

OUTPUT LO

HEADPHONE

150-600 OHMS

COCKPIT SPEAKER

4-8 OHMS

P1-2

P1-25

P1-53

P1-51

HDPH OUT HI

HDPH OUT LO

SPKR OUT HI

SPKR OUT LO

NOTE:

AUX/AW AUD. COMM.

GROUND TO SAME

LOCATION AS POWER

RETURN.

1 METER MAX.

Figure 2. Wiring Diagram (continued)

Figure 3. Generic Model 700-[ ] Installation Wiring Diagram

(Sheet 1) EQUIPMENT MANUAL 700-16-1

700/700-16-1

CONFIDENTIAL AND PROPRIETARY TO COBHAM

Page 14

Figure 3. Generic Model 700-[ ] Installation Wiring Diagram

(Sheet 2) EQUIPMENT MANUAL 700-16-1

700/700-16-1

CONFIDENTIAL AND PROPRIETARY TO COBHAM

Page 15

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COBHAM AVIATOR 700 Equipment Manual

COBHAM AVIATOR 700 Equipment Manual

COBHAM AVIATOR 700 Equipment Manual

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