Becker AR6201-000, AR6201-002, AR6201-100, AR6201-102 Installation And Operation Manual

Installation

Operation

Manual DV 14300.03

Issue 5 July 2013

Becker Flugfunkwerk GmbH ● Baden Airpark ● 77836 Rheinmünster ● Germany

Telephone [phone] / 305-0 ● Fax [phone] / 305-217

http://www.becker-avionics.com ● e-mail: [e-mail]

VHF-Transceiver

AR6201-(X0X)

Software Versions:
SCI1050S305 Version 3.0 5
SCI1051S305 Version 1.4 9

and upwards

FIRST ISSUE AND CHANGES

Issue 1 May 2010

Issue 2 October 2010

Issue 3 March 2011

Issue 4 May 2011

Issue 5 July 2013

LIST OF EFFECTIVE PAGES

Page No.: Date: Page No.: Date:

Cover Page

7/2013

I … VI 7/2013

1-1 … 1-10 7/2013

2-1 … 2-42 7/2013

3-1 … 3-19 7/2013

DV 14300.03 / Article Number 0617.857-071

© 2013 by Becker Flugfunkwerk GmbH / All rights reserved

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page I

Table of Contents

Section 1 GENERAL DESCRIPTION Page

1.1 Introduction 1-1

1.2 Purpose of Equipment 1-1

1.3 General Notes 1-1

1.4 Short Description 1-1

1.5 Variants Survey 1-4

1.6 Technical Data 1-5

1.6.1 Power Supply Data 1-5

1.6.2 General Data 1-5

1.6.3 Dimensions & Weight 1-5

1.6.4 Receiver Data 1-5

1.6.5 Transmitter Data 1-6

1.6.6 Emergency Operation 1-6

1.6.7 Software 1-6

1.6.8 Complex Hardware 1-6

1.6.9 Regulatory Compliance 1-7

1.7 Environmental Qualification 1-7

1.8 Accessories 1-9

AR6201-(X0X)

Page II DV 14300.03/.04 Issue 1 05/1013

Section 2 Installation Page

2.1 Limitations 2-1

2.2 Unpacking the Equipment and

Preparation for Installation 2-1

2.3 Mechanical Installation 2-1

2.4 Electrical Interface 2-2

2.4.1 Connectors and Pin Assignment 2-2

2.4.2 Inputs / Outputs Detailed Description 2-5

2.5 Installation Wiring 2-9

2.5.1 Typical Wiring for Single Seater Glider 2-10

2.5.2 Typical Wiring for Single Seater Glider

(5-pol DIN Jack) 2-11

2.5.3 Typical Wiring for

Twin Seater Motor Glider 2-12

2.5.4 Typical Wiring for

Standard Headsets in use 2-13

2.5.5 Typical Wiring for Aircrafts with

Intercom System (unbalanced) 2-14

2.5.6 Typical Wiring for Aircrafts with

Intercom System (balanced) 2-15

2.5.7 Typical Wiring for Twin Seater Aircrafts,

Tandem (additional R

adio Control Unit) 2-16

2.6 Antenna Installation 2-17

2.7 Location of internal Circuit Breaker 2-17

2.8 Installation Setup 2-18

2.8.1 Entering Installation Setup 2-18

2.8.2 Page Up / Page Down

in the Installation Setup 2-18

2.8.3 Storage of Setup Data 2-18

2.8.4 Terminate Installation Setup 2-18

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page III

2.8.5 Installation Setup Page

Data Description 2-19

2.9 Typical Settings

in the INSTALLATION SETUP 2-30

2.9.1 Single Seater Glider 2-30

2.9.2 Twin Seater Motor Glider 2-31

2.9.3 GA aircraft using Standard Microphones 2-32

2.9.4 Aircraft with Intercom System 2-33

2.9.5 Twin Seater Aircraft 2-33

2.10 Retrofitting an AR4201

with an AR6201-(X0X) 2-34

2.10.1 Pin Compatibility 2-34

2.10.2 Dynamic Microphone Input 2-36

2.10.3 Temperature Sensor 2-36

2.10.4 RS-232 Interface 2-36

2.10.5 AFCU/AGC/AFWB 2-36

2.10.6 PWR_EVAL 2-37

2.11 Post Installation Tests 2-37

2.11.1 Mechanical Installation and Wiring Check 2-37

2.11.2 Power Supply 2-37

2.11.3 Receiver / Transmitter Operation 2-37

2.11.4 Antenna Check 2-37

2.11.5 Interference Check 2-37

2.11.6 Flight Test Check 2-40

2.12 Trouble Shooting 2-40

2.13 Continued Airworthiness 2-41

AR6201-(X0X)

Page IV DV 14300.03/.04 Issue 1 05/1013

Section 3 OPERATION Page

3.1 Safety Instructions 3-1

3.2 Controls and Indicators 3-2

3.2.1 Controls 3-3

3.2.2 Symbols shown on the Display 3-4

3.3 Start–Up 3-4

3.4 Receive and Transmission Operation 3-5

3.4.1 Receive Mode 3-5

3.4.2 Transmission Operation 3-5

3.5 Frequency Selection Modes 3-6

3.5.1 Standard Mode 3-7

3.5.2 Direct Tune Mode 3-7

3.5.3 Channel Mode 3-8

3.5.4 Scan Function 3-10

3.6 Squelch 3-11

3.7 RX Field strength indication 3-11

3.8 Channel Spacing Mode 3-11

3.9 Storage Function 3-12

3.9.1 Modification of User Channels

Database and Labels Database 3-12

3.9.2 Automatic Storage Function 3-13

3.10 Auxiliary Audio Input 3-14

3.11 Intercom Operation 3-14

3.12 VOX & speaker operation 3-15

3.13 Menus 3-15

3.13.1 Intercom Menu 3-15

3.13.2 Pilots Menu 3-17

3.14 Warning and Failure Indications 3-18

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page V

List of Abbreviations

AF Audio Frequency

ATT Attenuation

CBIT Continuous Built In Test

CFG Configuration

EASA European Aviation Safety Agency

EMI Electro Magnetic Interference

ETSO European Transmission System Operators

GPS Global Positioning System

HMI Human Machinery Interface

HIRF High Intensity Radiated Fields

IC Intercom

I&O Installation & Operation

LCD Liquid Crystal Display

M&R Maintenance & Repair

PBIT Power-On Built In Test

PTT Push TO Talk

PWR Power

RX Receive

SQL Squelch

SPKR Speaker (Loudspeaker)

SRC Source

TSO Transmission System Operator

TX Transmit

VOX Voice Operated IC Threshold

VHF Very High Frequency

VSWR Voltage Standing Wave Ratio

AR6201-(X0X)

Page VI DV 14300.03/.04 Issue 1 05/1013

BLANK

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 1-1

Section 1. GENERAL DESCRIPTION

1.1 Introduction

This manual describes the VHF transceiver AR6201-(X0X). The manuals DV

14300.03

I&O (“Installation and Operation”) and DV 14300.04 M&R

(“M

aintenance and Repair”) contain the following sections.

Section

DV 14300.03

I&O

DV 14300.04

M&R

1 General

X X

2 Installation

X X

3 Operation

X X

4 Theory of Operation

N/A X

5 Maintenance and Repair

N/A X

6 Illustrated Parts List

N/A X

7 Modification and Changes

N/A X

8 Circuit Diagrams

N/A X

1.2 Purpose of Equipment

The AR6201-(X0X) VHF transceiver enables voice communication in the very
high frequency band between 118.000 MHz and 136.9916 MHz with a
selectable channel spacing of 25 kHz or 8.33 kHz.
The AR6201-(10X) VHF transceiver enables voice communication in the very
high frequency band between 118.000 MHz and 136.9750 MHz with a
selectable channel spacing of 25 kHz only.

1.3 General Notes

The word “frequency”, also used in this document in the sense of
“channel name”, as defined in EUROCAE, ED-23B: chapter 1.3.2.
The word “memory channel” or “channel” used in this document means a
memory place identified by a channel number. On that memory place, a
frequency may be stored for later use.

1.4 Short Description

The AR6201-(X0X) is a single block transceiver ideal to be fitted in all
type of general aviation aircraft and helicopters.
The VHF transceiver is a compact and lightweight single block unit. The
dimensions correspond to the standard instrument diameter of 58 mm (2 ¼
inch). Mounting is by means of four screws (back panel installation).

AR6201-(X0X)

Page 1-2 DV 14300.03/.04 Issue 5 5/2013

All controls and indicators are located on the front panel. The
equipment connectors and the antenna socket are located at the rear of
the unit. On the right-hand side is a Circuit Breaker located.

Frequency Indication

By means of a liquid crystal display (LCD) the frequency indication is
provided. The required operating frequency is set with the rotary knob.
The relation between the real operating frequency and the displayed
frequency is according to standards (ED-23B, chapter 1.3.2). For an
overview, refer to the table below.

Operating

Frequency (MHz)

Channel Spacing

(kHz)

Displayed

Frequency

in 8.33+25 kHz

Mixed Mode

Displayed

Frequency

in 25 kHz Mode

118.0000 25 118.000 118.00

118.0000 8.33 118.005 N/A

118.0083 8.33 118.010 N/A

118.0166 8.33 118.015 N/A

118.0250 25 118.025 118.02

etc. etc. etc. etc.

136.9750 25 136.975 136.97

136.9750 8.33 136.980 N/A

136.9833 8.33 136.985 N/A

136.9916 8.33 136.990 N/A

Audio Outputs

The transceiver includes two audio outputs: headphone and speaker. The
headphone rated output power is 300 mW into 150 Ohm. The rated output
power from the speaker output is 4 W into 4 Ohm.

Mike Inputs

The VHF transceiver has an input for dynamic microphone (DYN_MIKE) and
an input for standard microphone (STD_MIKE). Each input is able to
operate with single microphone or with 2 microphones of the same type
connected in parallel.

AF Auxiliary Input

The AF auxiliary input enables to connect an external audio source (NAV,
music-player …) to the transceiver. The external audio is audible only
when the transceiver is in Receive Mode.

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 1-3

Sidetone

The Sidetone is available on the headphone output during transmission.
The Sidetone Volume depends simultaneous on the Intercom Volume setting.

Squelch Operation

A Squelch (muting) circuit suppresses received signals if the signal
quality is poor. There are two kinds of Squelch methods implemented,
Carrier Squelch and Noise Squelch. The carrier squelch rests upon the
signal strength of the received signal; the noise squelch rests upon the
detected noise level and is adjustable in the pilot’s setup menu.

Memory Channels

The VHF transceiver also contains a channel memory function for
automatically/manually channel memory storage of up to 99+9 frequencies.
The last 9 used (active) frequencies are always stored automatically.
The manual storage of up to 99 different frequencies is in addition
possible. It is also possible to assign for each stored frequency a user
defined text label.

Intercom Operation

Aircraft internal communication via connected headsets is provided by
the built in intercom circuit. The Intercom operation may be
automatically via VOX (adjustable) or externally via the intercom switch
triggered. The Setting of VOX-threshold and Intercom Volume is
accessible for the pilot by the Intercom Menu.

Scan Function

In “Scan Function” a dual watch functionality is provided. In case of a
signal is received on both (active/preset) frequencies simultaneously
the signal of the active frequency will become audible with priority at
any time.

Illumination

The illumination of the LCD and the push buttons can be controlled
either directly from the front panel via the pilot’s menu or externally
via the dimming input lines. In case of external dimming is selected the
illumination curve (brightness to voltage relation) can be adjusted in
the Installation Setup.

LOW BATT Indication

The VHF transceiver also contains a monitoring stage for the power
supply voltage. If the supply voltage drops below the adjustable
threshold, the display indicates the message “LOW BATT”.

Emergency Operation

The VHF transceiver is able to operate in emergency operation (9.0 V)
with some reduced performance.

Built In Tests

After power-up, the unit performs a power-up built in test (PBIT).
During PBIT the transceiver displays “WAIT” and the corresponding

AR6201-(X0X)

Page 1-4 DV 14300.03/.04 Issue 5 5/2013

software versions of the control head and chassis module. The continuous
built in test (CBIT) verifies the correct function of the unit
permanently during normal operation. If a problem is detected an error
message will be displayed.

Installation Setup

Configuration of the installation parameters like mike sensitivity, mike
type selection, speaker ON/OFF and further parameters is possible via
the Installation Setup.

Service Mode

The Service Mode is a special configuration mode of the AR6201 via a
RS422 interface with a proprietary serial data communication protocol.

1.5 Variants Survey

Part Number

Article

Number

Panel

Color

Display

Color

25 kHz

Mode

8.33+25 kHz

Mixed Mode

AR6201-[phone]-910 black green Yes Yes

AR6201-[phone]-910 black blue - white

Yes Yes

AR6201-(100) 0621.218-910 black green Yes

Not

available

AR6201-(102) 0621.226-910 black blue - white

Yes

Not

available

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 1-5

1.6 Technical Data

1.6.1 Power Supply Data

Nominal supply voltage range .... 11.0 … 30.3 VDC

Abnormal supply voltage range ... 10.25 … 32.2 VDC

Emergency operation ............. 9.0 VDC (reduced performance,

ref.chapter1.6.6)

Power consumption:

Power “OFF” state ............. ≈ 1.5 mA @ 12 VDC

< 10 mA @ 28 VDC

Receive Mode .................. ≤ 140 mA @ 14 VDC, panel backlight “OFF”

< 90 mA @ 28 VDC, panel backlight “OFF”

(< 85 mA typ.)

Transmit Mode ................. ≤ 2 A @ 14 VDC; 70% modulation, VSWR=1:1

≤ 4 A @ 14 VDC; 70% modulation, VSWR=3:1

≤ 1 A @ 28 VDC; 70% modulation, VSWR=1:1

≤ 1 A @ 28 VDC; 70% modulation, VSWR=3:1

Circuit Breaker (internal) ...... 5 A (resettable)

Dimming control ................. 14 VDC or 28 VDC

1.6.2 General Data

Frequency range ................. 118.000 MHz to 136.975 MHz (25 kHz Mode)

Frequency range ................. 118.000 MHz to 136.9916 MHz

(8.33 + 25 kHz Mixed Mode)

Channel spacing ................. 25 kHz or 8.33 kHz

Number of channels .............. 760 (25 kHz Mode)

2280 + 760 (8.33 + 25kHz Mode)

Storage temperature range ....... -55°C to +85°C

Operating temperature range ..... -20°C to +55°C / short-time +70°C

Operating altitude .............. 35.000 ft

1.6.3 Dimensions & Weight

Front panel ..................... 61.2 mm x 61.2 mm

Depth of unit ................... 211.4 mm

(front plate to the end of Antenna

connector)

Mounting-hole (instrument panel) standard 58 mm diameter (2

1/4

inch)

Material of Case ................ ALMg

Surface treatment ............... control-head coated with black paint (matt)

Weight .......................... 850g

1.6.4 Receiver Data

Sensitivity ..................... ≤ -93 dBm for a (S+N)/N ratio of 6 dB

Effective bandwidth ............. ≥ ± 2.78 kHz at the 6 dB points

≥ ± 7.37 kHz at the 60 dB points

AR6201-(X0X)

Page 1-6 DV 14300.03/.04 Issue 5 5/2013

1.6.5 Transmitter Data

Output power .................... ≥ 6 W into 50 Ω @ 12 VDC

................................ (with and without modulation)

Frequency tolerance ............. ≤ 5 ppm

Duty cycle ...................... 1 minute (TX):4 minutes (RX)

Type of modulation .............. A3E (amplitude modulation)

Modulation capability ........... ≥ 70%

Distortion at 70% modulation .... ≤ 15%

Modulation bandwidth ............ ≤ 6 dB, 350 Hz to 2500 Hz

Dynamic microphone ............. 1 … 20 mV compressor starting point

adjustable, balance input, 140 Ohm,

input range up to 20 dB above compressor

starting point.

Standard microphone ............. 25 … 1000 mV compressor starting

(with compressor) point, unbalanced input,

110 Ω, input range up to 20 dB above

compressor starting point.

FM deviation with modulation .... ≤ 3 kHz

Sidetone ........................ adjustable

Automatic shutdown of TX mode ... after 120 seconds of permanent TX

(stuck PTT)

1.6.6 Emergency Operation

TX output power ................. ≥ 2 W into 50 Ω (with modulation) @ 9 VDC

TX modulation depth ............. ≥ 50% @ 9 VDC

RX sensitivity .................. ≤ -93 dBm for a (S+N)/N ratio of

6 dB @ 9VDC

Panel & Display backlight ....... switched “OFF”

Speaker output .................. switched “OFF”

Headphone output ................ operating

CAUTION: For power-supply voltages below 10 V the speaker output of the

transceiver will automatically be switched “OFF”, without
notification for the pilot!
Depending on settings in Installation Setup “LOW BATT” may be
indicated if supply voltage drops below a predefined threshold.
If the threshold adjusted within the range 10.3 … 10.5V is
reached the “LOW BATTERY” warning indicates the user, that he
should connect his headset because the speaker may be switched
“OFF” soon).

1.6.7 Software

The software is as Level D in accordance with EUROCAE/RTCA document
ED12B/DO-178B classified.

1.6.8 Complex Hardware

Complex hardware is not used.

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 1-7

1.6.9 Regulatory Compliance

Part Number

Article

Number

EASA Approval TSO Approval FCC Approval

AR6201-(000) 0610.321-910

EASA.210.1249

ETSO-2C37e

Class: D, E

ETSO-2C38e

Class: 4, 6

TSO-C169a

Class: D, E,

4, 6

B54AR6201

AR6201-(002) 0614.203-910

AR6201-(100) 0621.218-910

EASA.210.1249

ETSO-2C37e

Class: D

ETSO-2C38e

Class: 4

TSO-C169a

Class: D, 4

B54AR6201

AR6201-(102) 0621.226-910

Note: Unauthorized changes or modifications to the AR6201-(X0X) may

void the compliance to the required regulatory agencies and
authorization for continued equipment usage.

1.7 Environmental Qualification

Under environmental test condition in accordance with the procedures set
forth in EUROCAE/RTCA Document ED-14E/DO-160E the following performance
has been demonstrated.

Condition

Section

Cat.

Description

Temperature and Altitude 4.0 C4

Ground Survival Low

Temperature

4.5.1 -55 deg C

Short-Time Operating Low

Temperature

-20 deg C

Operating Low Temperature -20 deg C

High Ground Survival

Temperature

4.5.2 +85 deg C

High Short-Time Operating

Temp.

4.5.3 +70 deg C

Operating High Temp. 4.5.4 +55 deg C

In-flight Loss of Cooling 4.5.5 X

No forced cooling required

Altitude 4.6.1 C4 35,000 ft

Decompression 4.6.2

Overpressure 4.6.3

Temperature Variation 5.0 B 5°C per minute

AR6201-(X0X)

Page 1-8 DV 14300.03/.04 Issue 5 5/2013

Condition

Section

Cat.

Description

Humidity 6.0 A Standard

Shock and Crash Safety 7.0 B

Fixed-

wing and Helicopter,

standard

Vibration 8.0

S

U

Curve M for Fixed-wing

Aircraft

Curve G for Helicopters

Explosion-proofness 9.0 X N/A

Water-proofness 10.0 X Condensing water

Fluids Susceptibility 11.0 X N/A

Sand and Dust 12.0 X N/A

Fungus Resistance 13.0 X N/A

Salt Spray 14.0 X N/A

Magnetic Effect 15.0 Z Less than 0.3m

Power Input 16.0 B

DC installations with

battery of significant

capacity

Voltage Spike 17.0 A

High degree of protection

against voltage spikes

Audio Freq. Conducted

Susceptibility

18.0 B

DC installations with

battery of significant

capacity

Induced Signal

Susceptibility

19.0 AC

Primary power DC or AC,

400Hz

Radio Frequency

Susceptibility

20.0 SW

Interim High Intensity

Radiated Fields

Emission of Radio Frequency

Energy

21.0 B

Equipment where

interference should be

controlled to a tolerable

level

Lightning Induced Transients

Susceptibility

22.0 A1E3X

Pin test waveform A, level

1

Cable bundle test waveform

E,

level 3

Lightning Direct Effects 23.0 X N/A

Icing 24.0 X N/A

Electrostatic Discharge 25.0 A

Equipment operated in an

aerospace environment

Fire, Flammability 26.0 X N/A

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 1-9

1.8 Accessories

Connector Kit CK4201-S (soldering version) Article-No.: 0879.304-954

consisting of:

25-pol. cable connector, soldering F Article no. 0725.021-277

Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Coding pin Article no. 0782.211-277

Connector Kit CK4201-C (crimp version) Article-No.: 0514.901-954

consisting of:

25-pol. cable connector, crimp F Article no. 0472.921-277

Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Coding pin Article no. 0782.211-277

Connector Kit CK6200-S (soldering version) Article-No.: 0617.903-954

consisting of:

25-pol. cable connector, soldering F Article no. 0725.021-277

25-pol. cable connector, soldering M Article no. 0726.331.277

2 X Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Coding pin Article no. 0782.211-277

AR6201-(X0X)

Page 1-10 DV 14300.03/.04 Issue 5 5/2013

Connector Kit CK6200-C (crimp version) Article-No.: 0617.891-954

consisting of:

25-pol. cable connector, crimp F Article no. 0472.921-277

25-pol. cable connector, crimp M Article no. 0891.551-277

2 X Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Coding pin Article no. 0782.211-277

Documentation

Operating instructions Article no. 0618.764-071

Manual Installation and Operation Article no. 0617.857-071

Manual Maintenance and Repair Article no. 0617.865-071

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 2-1

Section 2. INSTALLATION

The installation of the VHF transceiver depends on the type of aircraft
and its equipment. Therefore, only general information is given in this
section.

2.1 Limitations

The installation of the AR6201-(X0X), designed as a single block unit
for use in cockpit environment of general aviation aircrafts including
helicopters, can be performed under consideration of the following
limitations:

• Installations have to be in accordance with appropriate EASA or FAA

approved guidelines.

• The AR6201-(X0X) must be connected to a VHF antenna in order to

satisfy FAA TSO-C169a.

• The conditions and tests for ETSO/TSO approval of this article are

minimum performance standards. Those installing this article, on or
in a specific type or class of an aircraft, must determine that the
aircraft installation conditions are within the ETSO/TSO standards.

Note: Changes or modifications made to this equipment not expressly

approved in written form by Becker Flugfunkwerk may void the
authorization to operate this equipment.

2.2 Unpacking the Equipment and Preparation for Installation

General

Visually inspect the package for signs of transport damage. Carefully
unpack all items and check for completeness.

Additional Required Equipment

The AR6201-(X0X) is intended for use with standard aviation accessories.
The following equipment is required for installation:

• VHF COMM Antenna with coaxial 50 Ω impedance cable and BNC connector

• Microphone

• Headphone and/or speaker

2.3 Mechanical Installation

The AR6201-(X0X) is designed to be mounted in the aircraft instrument
panel within easy view and reach of pilot/operator. The AR6201-(X0X) is
designed for back-panel mounting by means of four screws, which are
already attached to the AR6201 front. The circular cut out and the
mounting holes have to be prepared in accordance with Figure 2-3. The
location of the AR6201-(X0X) shall be at least 30 cm away from the
aircraft magnetic compass, to avoid any interference to the magnetic
compass by the transceiver. For typical installations, there is no need
for a forced cooling of the AR6201-(X0X). Leave clearance of minimum 5
mm between the AR6201-(X0X) and other avionics to allow air circulation.
Figure 2-1, Figure 2-2 and Figure 2-3 show the unit dimensions.

AR6201-(X0X)

Page 2-2 DV 14300.03/.04 Issue 5 5/2013

Figure 2-1 VHF transceiver side view

Figure 2-2 Mounting dimensions VHF

transceiver

Figure 2-3 Drilling jig for back-panel

mounting

2.4 Electrical Interface

2.4.1 Connectors and Pin Assignment

Figure 2-4 Connectors on rear plate

AR6201-(X0X)

DV 14300.03/.04 Issue 5 5/2013 Page 2-3

Antenna Connector (Position 1)

The antenna connector (Figure 2-4, Position 1) is a BNC type.

Grounding Bolt (Position 2)

The transceiver has a M4 threaded grounding bolt (Figure 2-4, Position

2) allowing a low impedance grounding of the unit. Low impedance
grounding is essential to avoid damage or malfunction in case of
indirect lightning, EMI and HIRF effects.

P1 Connector (System Interfaces)

The P1 connector (Figure 2-4, Position 3) is a D-SUB male type with 25
pins and slide-in fastener.

Pin No. Pin Name Direction Function

P1-1 SPK_HI OUT Speaker output signal (HI)

P1-2 HDPH_A OUT Balanced output for headphone(s)

P1-3 HDPH_B OUT Balanced output for headphone(s)

P1-4 AF_AUX_IN_HI IN Auxiliary audio input (HI)

P1-5 MIKE_DYN_HI IN Balanced input for dynamic

microphone(s)

P1-6 MIKE_DYN_LO IN Balanced input for dynamic

microphone(s)

P1-7 IC IN Intercom key input;

LO active - closed contact to GND

P1-8 MIKE_STD_LO - Standard Microphone LO

(ground/return)

P1-9 NC not connected

P1-10 ILL_LO IN Illumination LO input

P1-11 P_SUPP IN Power supply ( + )

P1-12 P_SUPP IN Power supply ( + )

P1-13 P_SUPP_GND - Power supply (return)

P1-14 SPK_LO - Speaker ground (return)

P1-15 LINE_OUT OUT High impedance audio output

P1-16 AGC_OUT OUT Receiver AGC output

P1-17 /PTT IN Press To Talk key input

LO active - closed contact to GND

P1-18 MIKE_STD_HI IN Standard Microphone (HI)

P1-19 CPIN - Pin removed to allow mechanical

coding of the harness connector.

P1-20 NC - not connected

P1-21 AF_AUX_IN_LO - Auxiliary audio input LO

(ground/return)

P1-22 NC - -

AR6201-(X0X)

Page 2-4 DV 14300.03/.04 Issue 5 5/2013

Pin No. Pin Name Direction Function

P1-23 ILL_HI IN Illumination (HI)

P1-24 /PWR_EVAL - Power on monitor output

P1-25 P_SUPP_GND - Power supply (return)

J1 Connector (Serial Interfaces and Discrete I/Os)

The J1 connector is a D_SUB female connector with 25 pins and slide-in

fastener.

Pin No. AR6201 Pin Name Direction Function

J1-1 CPIN - Reserved Coding PIN

J1-2 TX2+ IN Interface 2 OUT+

J1-3 RX2+ IN Interface 2 IN+

J1-4 /SQL_EVAL OUT Squelch monitor output

LO active - closed contact to GND

J1-5 /CSDB_EXT IN Extended CSDB protocol enabling

LO active - closed contact to GND

J1-6 SHIELD_1 - Interface 1 SHIELD

J1-7 TX1+ OUT Interface 1 OUT+

J1-8 RX1+ IN Interface 1 IN+

J1-9 TX2- OUT Interface 2 OUT-

J1-10 RX2- IN Interface 2 IN-

J1-11 SHIELD_2 - Interface 2 SHIELD

J1-12 /EXT_SO IN External ”Exchange” key

Falling edge activates frequency
exchange

J1-13 /SRV_EN IN Service enable pin

LO active - closed contact to GND

J1-14 TX1- OUT Interface 1 OUT-

J1-15 RX1- IN Interface 1 IN-

J1-16 NC not connected

J1-17 NC not connected

J1-18 NC not connected

J1-19 NC not connected

J1-20 (/GPI) IN General Purpose Input pin (unused, for

future purposes)

LO active - closed contact to GND

J1-21 D_GND - Discrete lines ground

J1-22 D_GND - Discrete lines ground

J1-23 D_GND - Discrete lines ground

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DV 14300.03/.04 Issue 5 5/2013 Page 2-5

Pin No. AR6201 Pin Name Direction Function

J1-24 /MIKE_SW IN Audio configuration selector input

J1-25 /ON IN External Power ON input

LO active - closed contact to GND

2.4.2 Inputs / Outputs Detailed Description

Microphone Connection – Carbon Microphone Standard

Pin No. AR6201 Pin Name Direction Function

P1-8 MIKE_STD_LO - Standard Microphone LO

(ground/return)

P1-18 MIKE_STD_HI AF IN / DC OUT Standard Microphone (HI)

For interfacing with standard microphone the transceiver has an
unbalanced input with an input impedance of 110 Ohm and a nominal
sensitivity of 110 mV. This sensitivity level can be adjusted in the
Installation Setup from 9 mV to 1500 mV. The power supply delivered from
pin 18 for supply of the connected microphone(s) is > 8 V DC (8.3 V
nominal) open circuit.

Note: Sensitivity range 25 mV to 1000 mV was qualified under

environmental conditions

For all popular aviation microphones the power supply is capable to
supply two microphones in parallel.

Care should be taken to combine only microphones of the same type /
impedance.

It is highly recommended to mount the jacks isolated from aircraft frame
in order to avoid ground loops.

Microphone Connection - Dynamic Microphone

Pin No. AR6201 Pin Name Direction Function

P1-5 MIKE_DYN_HI IN Balanced input for dynamic

microphone(s)

P1-6 MIKE_DYN_LO IN Balanced input for dynamic

microphone(s)

For interfacing with dynamic microphone the transceiver has a balanced
input with an impedance of 140 Ohm and a nominal sensitivity of 3.5 mV.
This sensitivity level is adjustable in the Installation Setup from 0.5
mV to 25 mV.

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Note: The sensitivity range of 1 mV to 20 mV was qualified under

environmental conditions.

Two dynamic microphones in parallel may be connected (identical
technical characteristics of the microphones are preferable).
It is highly recommended to install the microphone jacks isolated from
aircraft ground in order to avoid ground loops.

Speaker Connection

Pin No. AR6201 Pin Name Direction Function

P1-1 SPK_HI OUT Speaker output (HI)

P1-14 SPK_LO - Speaker LO (ground/return)

The speaker output provides nominal 4 Watts into 4 Ohm.

CAUTION: The magnetic field of a speaker may influence the magnetic

compass.

When choosing the installation place, a distance where the

magnetic compass is not affected must be determined. After
the speaker is installed accuracy of the compass operation
must be verified.

Headphone Connection

Pin No. AR6201 Pin Name Direction Function

P1-2 HDPH_A OUT Balanced Output for headphone(s)

P1-3 HDPH_B OUT Balanced Output for headphone(s)

The headphone output is a balanced and transformer coupled output
providing nominal 300 mW into 150 Ohm.
Up to two headphones with an impedance of 300 Ohm (or higher) may be
connected in parallel.
Because the headphone output is balanced and in most installation the
use of a single shielded wire for headphone is very popular, P1-3 can be
grounded (connection to pin P1-13/P1-25). In that case, the balanced
output becomes unbalanced.
It is highly recommended to install the headphone jacks isolated from
aircraft ground in order to avoid ground loops.