F.u.n.k.e. ATR833-II-BOX User manual

f.u.n.k.e. means –fabrication · utilities · network · know-how · engineering
ATR833-II-BOX
VHF Communication
Transceiver - Headless
P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
Document No. 01.143M.010.71e

Doc-No. 01.143M.010.71e 2

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
3 Doc-No. 01.143M.010.71e
Change History
Revision
Date
Description of Change
1.00
25.02.2022
List of Service Bulletins (SB)
Service-Bulletins are to be inserted in the manual and to be recorded in
this table
SB Number
Rev. No.
Date of Issue
Entry Date
Name

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Operation and Installation
Doc-No. 01.143M.010.71e 4
CONTENT
1GENERAL ............................................................................................................................................... 5
1.1 SYMBOLS ................................................................................................................................................... 5
1.2 ABBREVIATIONS .......................................................................................................................................... 6
1.3 CUSTOMER SUPPORT ................................................................................................................................... 6
2SYSTEM DESCRIPTION ........................................................................................................................... 7
3OPERATION ........................................................................................................................................... 7
3.1 OPERATION WITH ONE REMOTE UNIT.............................................................................................................. 7
3.2 OPERATION WITH TWO REMOTE UNITS ........................................................................................................... 7
3.3 DESCRIPTION OF OPERATION ......................................................................................................................... 7
4CONFIGURATION ................................................................................................................................... 8
4.1 REMOTE INTERFACE..................................................................................................................................... 8
5INSTALLATION ....................................................................................................................................... 9
5.1 ADVICE AND TIPS......................................................................................................................................... 9
5.2 TELECOMMUNICATION DATA....................................................................................................................... 10
5.3 UNPACKING AND INSPECTING THE EQUIPMENT ............................................................................................... 10
5.4MOUNTING.............................................................................................................................................. 10
5.5 EQUIPMENT CONNECTOR............................................................................................................................ 10
5.6 CONDUCTOR CROSS SECTION....................................................................................................................... 11
5.7 FRONT CONNECTOR FOR REMOTE CONTROL................................................................................................... 11
5.8 HARNESS CONNECTOR FOR REMOTE CONTROL ............................................................................................... 12
6APPENDIX............................................................................................................................................ 13
6.1 TECHNICAL DATA ...................................................................................................................................... 13
6.2 DIMENSIONS ............................................................................................................................................ 13

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
5 Doc-No. 01.143M.010.71e
1 GENERAL
This manual contains information about operation and installation of the
VHF transceiver ATR833-II BOX, as well as information about the
physical, mechanical and electrical characteristics.
Please read this manual carefully before installing the device.
Please observe the limitations and safety instructions.
1.1 Symbols
Warning
Warning texts indicate a possibly dangerous situation and include
advices whose non-observance may harm the user or cause severe
damage to the device or other parts of the equipment.
Information
Information texts indicate the possibility of incorrect operation,
malfunction or fail of the equipment, if the instructions are not followed.
Note
Note texts give advice or hints that facilitate the use of the equipment.

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Operation and Installation
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1.2 Abbreviations
Abb.
Name / Subject
Definition
D-SUB
D-Subminiature
Standardized connector type
GND
Ground
Ground connection
kHz
Kilo Hertz
Oscillation of 1 thousand Hertz
LCD
Liquid Cristal Display
Light reflecting display type
MHz
Mega Hertz
Oscillation of 1 Million Hertz
OLED
Organic Light Emitting Diode
Self-luminous display type
RCU
Remote Control Unit
Separate control head
RMA
Return Merchandise
Authorization
Process for Repair and
Maintenance
RS232
Recommended Standard 232
Standard for serial interface
RX
Reception
Receiving status
TX
Transmission
Transmitting status
VDC
Volts of Direct Current
Voltage
1.3 Customer Support
In order to facilitate a rapid return of shipments in case of repairs, please
follow the instructions of the input guide “Reshipment RMA” provided at
the Service-Area within the f.u.n.k.e. AVIONICS GmbH web portal
www.funkeavionics.de.
If you need further information or support, please feel free to contact us
by phone or e-mail.
Information
Information on software updates is available on the website of
f.u.n.k.e. AVIONICS GmbH : www.funkeavionics.de

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
7 Doc-No. 01.143M.010.71e
Note
Any suggestions for improvement of our manuals are welcome.
Contact: [e-mail].
2 SYSTEM DESCRIPTION
The ATR833-II BOX is an ATR833-II VHF transceiver without integrated
control head. The equipment characteristics are identical with the
ATR833-II transceiver.
The integrated control head is substituted by a cover with a D-SUB DE9
pin female socket and contains the serial interface and the power supply
for a remote control unit.
3 OPERATION
3.1 Operation with one Remote Unit
If the unit shall be operated with one control head only, it is mandatory
that this control unit is connected to the front socket. The operation of a
single unit connected to the rear remote interface will not work. The unit
will not switch on.
Information
A single Remote Control Unit shall be always connected to the front
socket.
The ATR833-II BOX can be operated either with the LCD or the OLED
variant of the Remote Control Unit.
3.2 Operation with two Remote Units
With a remote interface connected to the front socket, a second Remote
Control Unit can be connected to the rear interface. The type of display,
LCD or OLED, does not matter.
3.3 Description of Operation
For operation details and transceiver technical data please refer to

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
Doc-No. 01.143M.010.71e 8
Doc.-No. 01.143.010.71d/eATR833-II - Operation and Installation
Doc.-No. 01.1313.010.71d/eATR833S
–Operation and Installation
The above mentioned manuals can be downloaded from service
webpage of f.u.n.k.e. AVIONICS:
www.funkeavionics.de/en/service/manuals/
4 CONFIGURATION
The configuration of the ATR833-II BOX is identical to the ATR833-II
transceiver. See §3 of the Operation and Installation Manual.
All setting commands and acknowledgements are performed via the
remote control interface. The protocol scheme is described in the
following chapter.
4.1 Remote Interface
The remote control interface is a serial RX-TX interface with RS232
voltage levels with 9600 baud, 8 data bits, no parity, 1 stop bit, no
handshake.
Each message begins with 2 byte sequences 0x02 (STX) and 0x72 ('r')
for synchronization followed by a message identification-byte and a
different number of data bytes.
Byte #
Value
Description
1
0x02 (STX)
Synchronization
2
0x72 (‘r’)
Synchronization
3
id
id of message
4…3+n
n data bytes
depending on message
4+n
checksum
XOR of bytes #2 … #3+n
i.e. excluding the STX and the checksum itself
Byte stuffing
If the STX byte (0x02) appears in the data byte of a message, this byte is
doubled to distinguish it from STX. The checksum then contains both
0x02 values.
The standby frequency is set with the ID 0x12 and contains two data
bytes:

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
9 Doc-No. 01.143M.010.71e
Data Byte #
Description
Possible Values / Remarks
1
MHz
118…136
2
kHz / 5
0…198 (corresponds to 0…990 kHz)
The standby frequency and the active frequency can also be adjusted by
Garmin devices. The protocol corresponds to the Garmin GTR225.
Document 01.142.090.36 ATR833S/-II Remote Protocol Description
provides a complete description of the interface.
Note
The complete description of the ATR833S/-II Remote Protocol is
available on request.
5 INSTALLATION
5.1 Advice and Tips
Following recommendations shall be considered before installation:
- Select a position away from heat sources. Care for adequate
convection cooling.
- Leave sufficient space for the installation of cables and connectors.
- Avoid sharp bends and wiring close to control cables.
- Leave sufficient lead length for inspection or repair of the wiring of the
connector.
- Bend the harness at the rear connectors to inhibit water droplets
(formed due to condensation) from collecting in the connector.
- The ATR833-II Box is fixed front-laterally in the mounting tray with four
4x8mm screws.
Warning
No screws may be turned in more than max. 15mm into the device –
even if no hard limit is noticeable!

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Operation and Installation
Doc-No. 01.143M.010.71e 10
Information
The D-Sub-Connector (plug) has to be clamped with both spring locks. It
is recommended to additionally secure them with a cable tie.
5.2 Telecommunication Data
Manufacturer:
f.u.n.k.e. AVIONICS GmbH
Type Designation:
ATR833-II BOX
EASA Number:
EASA.21O.10062108 REV. B
Transmitter Power Output:
6 Watt
Frequency:
118,000 –136,975 MHz
Emission Designator:
6k00A3E for 25khz channel spacing
5k00A3E for 8,33kHz channel spacing
5.3 Unpacking and Inspecting the Equipment
Carefully unpack the equipment. Damages due to transportation must be
reported to the shipping company immediately. Save the shipping
container and all packing materials to substantiate your claim.
Information
Please use the original packing material for storage and shipping.
5.4 Mounting
The ATR833-II BOX comes with a mounting tray for an installation
outside the instrument panel.
Location and kind of the installation should be specified in cooperation
with a maintenance shop. The maintenance shop can supply all cables.
Suitable cable harnesses are available from f.u.n.k.e. AVIONICS GmbH.
5.5 Equipment Connector
The 25 pin D-SUB connector on the rear side of the ATR833-II BOX
includes all electrical connections, except for the antenna.

ATR833-II-BOX / P/N 833-II-(Mxxx)-(Mxxx)
Operation and Installation
11 Doc-No. 01.143M.010.71e
See Document No. 01.143.010.71d/e ATR833-II - Operation and
Installation chapter 4.6, 4.7 and 4.8.
Warning
The (+UB)-wire (PWR –Pin 11/12) has to be protected by a circuit
breaker (4 Amp. slow-blow)!
5.6 Conductor Cross Section
The conductors used must be approved for aircraft installation.
Power Supply (Power, GND): AWG18 (0.96 mm²)
Signals: AWG22 (0.38 mm²)
5.7 Front Connector for Remote Control
The ATR833-II BOX provides two D-SUB DE-9 pin sockets: The primary
one is on the front of the ATR833-II BOX and the secondary socket is a
part of the cable harness BSKS833D-S and BSKS833S-S.
The connection between the main remote control and the ATR833-II
BOX front connector requires a shielded 9-wire D-SUB cable. The front
connector shows following pin allocation:
Front Connector for
Remote Control Unit
Front View
1: Coding Pin (removed)
2: Data TX
3: Data RX
5: Data GND
6: Main Switch
7: Remote Switch
8: +5VDC
9: +5VDC
For proper functionality the cable BSKS600R5 shall be used. This cable
includes all pin connections required to switch the main unit on and off.
It is not possible to switch the unit on from the Remote Control Unit
attached to the harness connector.
Therefore, the front connector is coded on Pin1 to prevent the
attachment of the remote cable BSKS600R4 for the harness connector.

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Operation and Installation
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5.8 Harness Connector for Remote Control
The harness connector provides a serial interface and power supply for a
second remote control unit. Pin allocation on the harness remote
interface:
Connector for Remote
Control Unit on cable
harnesses BSKS833x–S
Front View
1: not connected
2: Data TX
3: Data RX
5: GND shielding
8: +5VDC
The harness BSKS600R4 shall be used for this connector.
Information
Only shielded RS232 cables with a maximum length of 3,0 meters shall
be used.

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Operation and Installation
13 Doc-No. 01.143M.010.71e
6 APPENDIX
6.1 Technical Data
The transceiver technical data are identical to the ATR833-II.
See § 5.2 of the Operation and Installation Manual.
The ATR833-II Box dimensions are slightly different due to the missing
control knobs.
6.2 Dimensions

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Operation and Installation
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ff.u.n.k.e. f.u.n.k.e. means –fabrication · utilities · network · know-how · engineering
f.u.n.k.e. AVIONICS GmbH
Heinz-Strachowitz-Str. 4
DE-86807 Buchloe
Germany
phone.: [phone]
fax.: [phone]
E-mail:
[e-mail]
www.funkeavionics.de