lxnav RS485 Bridge Installation Guide
- June 15, 2024
- lxnav
Table of Contents
INSTALLATION MANUAL
LXNAV RS485 to
RS232 bridge
Version 2.10
Important Notices
Information in this document is subject to change without notice. LXNAV reserves the right to change or improve their products and to make changes in the content of this material without obligation to notify any person or organization of such changes or improvements.
A Yellow triangle is shown for parts of the manual which should be read very
carefully and are important for operating the system.
Notes with a red triangle describe procedures which are critical and may
result in loss of data or any other critical situation.
A bulb icon is shown when a useful hint is provided to the reader.
1.1 Limited Warranty
This LXNAV product is warranted to be free from defects in materials or
workmanship for two years from the date of purchase. Within this period, LXNAV
will, at its sole discretion, repair or replace any components that fail in
normal use. Such repairs or replacement will be made at no charge to the
customer for parts and labour, provided that the customer shall be responsible
for any transportation cost. This warranty does not cover failures due to
abuse, misuse, accident, or unauthorised alterations or repairs.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL
OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY
ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, WHICH MAY VARY FROM STATE TO STATE.
IN NO EVENT SHALL LXNAV BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO
USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the
exclusion of incidental or consequential damages, so the above limitations may
not apply to you. LXNAV retains the exclusive right to repair or replace the
unit or software, or to offer a full refund of the purchase price, at its sole
discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH
OF WARRANTY.
To obtain warranty service, contact your local LXNAV dealer or contact LXNAV
directly.
Installations
2.1 Packing Lists
- 485 to232 bridge
- Pair of spring locks for RS485 splitter
2.2 Basics
LXNAV RS485 to Rs232 bridge (Bridge) is connected to the RS485 bus through a
RS485 splitter DB9 connector. A RS485 splitter is not part of package. If you
don`t have spare port on your RS485 splitter you must order another 485
splitter.
2.3 Installation
The RS485 splitter needs a small modification before the Bridge can be fitted. It is necessary to remove two HEX screws, where the Bridge is to be connected, and replace them with the two spring locks that are in the package.
After that small modification, fixing the Bridge to the RS485 splitter will be
very easy.
On the other side of the Bridge there is a RJ12 connector with a standard
IGC/FLARM pinout
Pin number | Description |
---|---|
1 | (output) 12V DC, to supply GPS |
2 | 3.3V DC (max 100mA) |
3 | GND |
4 | Flarm Data Out |
5 | Flarm Data In |
6 | Ground |
By default, the Bridge is programmed to stream NMEA data at 4800bps. It streams standard GPS and Flarm data.
2.4 Wirings
The wiring diagrams show the minimum required connection for communication
between a LXNAV instrument and a radio or transponder. The user should check
the manual of the connected device for any further information.
2.4.1 NMEA bridge
NMEA bridge can transmit stanradr GPS data sentences (GPGGA, GPRMC, GPGSA and
GPVTG), Flarm NMEA sentences (PFLAU, PFLAA), and LXNAV NMEA senteces (PLXVF
and PLXVS).
2.4.1.1 Oudie
2.4.2 Radios
2.4.2.1 Funkwerk ATR833 /ATR833-II 2.4.2.2 Dittel KRT2
2.4.2.3 Trig TY
91/92 (Obsolete, see trig bridge manual!)
- TY 91/92 without TC 90 head
- Trig TY 91/92 with TC90 head Minimum firmware versions for communication between Trig radio and RS485 to RS232 Bridge
Device| Minimum firmware version
---|---
TY 91/92| 1.5
TC 90| 1.4
RS485 to RS232 Bridge| 1.18
2.4.2.4 Becker AR6201 / RT6201
A remote control should be enabled on the Becker radio. Please check the
Becker radio’s Manual to see how to enable it.
From Becker manual:
Try to enable “Tandem” mode on the radio itself. To do this, press MDE while
turning on the radio. Input password 6435 and press STO. Move to
“Configuration” screen with SCN and enable “Tandem” checkbox there. Also, on
the “SPKR VOL SRC” select the “Both” option. Now you can turn off the radio
(settings are saved on-the-fly) and check if the connection works. If it still
doesn’t work or you can’t find the menu items, please specify the exact model
of Becker radio (the “PN” label on the device).
Minimum firmware version for communication between Becker and Bridge
Device | Minimum firmware version |
---|---|
RS485 to RS232 Bridge | 1.16 |
Becker SCI1050S305 | 3.05 |
Becker SCI1051S305 | 1.49 |
- AR6201 single seater
- AR6201 twin seater
- RT6201 single seater remote control
2.4.3 Transponders
2.4.3.1 Becker BXP6402
2.4.3.2 Trig TT 21/22
Connection of bridge to transponder is not certified, due to not certified altitude, which is distributed from main unit.
2.4.4 Multifunction controllers
2.4.4.1 AIR Control Display 57
Revision History
Rev | Date | Comment |
---|---|---|
1 | August-14 | Initial release of owner manual |
2 | July-15 | Added chapters 2.4.2.3 TRIG TY 91/92 |
3 | August-15 | Modified wirings for Trig TY 91/92, Trig TT 21/22 and Becker |
BXP6402
4| October-15| Modified wirings with separated connectors from Bridge, Wired
power ON pins for auto ON functions,
Added chapter 1.5.1.4 Becker AR6201
5| October-15| Cable shields wired to SUBD9 connector housings, Added colours
to wires
6| January-16| Instructions for Becker Radio configuration
7| February-16| English correction, trigging the remote head description is
added
8| March-16| Added wirings for Becker radios with single and two seater
configuration for AR6201 and RT6201
9| June-16| Added wiring for Trig TY91/92 with TOO head
10| July-16| Added version requirements for Trig TY 91/92
11| March-17| Added old color pinouts of Becker wiring v1.0: 2.4.2.4, 2.4.3
12| September-17| Updated ch.2.4.2.4 Added new ch.2.4.1.1
13| August-18| English correction done by JR
14| August-18| Modified wiring for ATR833 in ch.2.4.2.1
15| April-19| Added 2.4.4 (Multifunction controllers) and 2.4.4.1 (AIR Control
display 57)
16| December-19| Added version requirements for Becker radios in chapter
2.4.2.4
17| April-20| Updated wiring diagram 2.4.4.1 with color labels
18| November-20| Updated chapter 2.4.3
19| January-21| Updated chapter 2.4.4.1
20| January-21| Style update
21| February-21| Style fixes
22| November-21| Updated chapter 2.4.1
23| October 2023| Updated chapter 2.4.2.3
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