+44 (0)117 907 4761
Providing innovative and effective solutions for over 25 years
Features
In Detail
Specifications
Downloads

ARINC 429 2Rx to 6 Ch. relay

This converter consists of two ARINC 429 receiver channels that each drive three relay contacts – six relays in total. Each receiver monitors Label nnn ARINC 429 for a specific bit pattern within them. When a specified label is detected containing the required bit pattern the respective relay is activated until such time as the same label is detected with a non-required bit pattern.
 
The converter can receive high or low speed ARINC 429 data automatically without user intervention.
 
The unit is powered from an external 28 VDC (18-60V) nominal supply with internal current and thermal (102 ºC) fuse. The power inputs are also reverse polarity protected.
 
Please note that this converter has been developed to allow a high level of customisation in order to meet a wide variety of customer requirements.
 
 
 

CUSTOMISATION TO YOUR REQUIREMENTS .....

CAUTION: SPECIFICATION SUBJECT TO CHANGE WITHOUT NOTICE

All units are designed to meet the European, US EMC regulations and RTCA DO-160G.

ARINC 429 2Rx to 6 Ch. relay Detail

The function of this converter is to monitor two ARINC 429 data buses for label nnn on Bus 1 and Bus 2 and subject to the condition of the Bit Pattern being met, switch the appropriate relay contacts. See user manual for more information.
 
The Label value, bit patterns and the relay behaviour are fixed in firmware. There are no user switches to set. Any required changes to the function of this unit will be changed in code and the modified firmware sent to the customer to re-program their hardware.
 
The two ARINC 429 receiver inputs are coupled to the converter hardware via two opto-couplers in order to maintain electrical isolation and to maintain EMC/EMI integrity.
 
The converter is powered from a nominal 28V DC supply. The power supply incorporates all the standard YED EMC/EMI surge protection techniques including a power supply monitoring device, which will cause the system to reset in the event of any problems with the main supply.
 
 
Firmware
The software for the the YED/A429-R2/VF6, ARINC-429 to relay converter is written in accordance with RTCA/DO-178B to criticality level E.
 
The hardware has a built-in Boot Loader that allows the internal firmware to be updated via USB/RS232 data link. A GUI program downloads the new firmware file to the internal FLASH ROM on the processor thus removing the requirement to return the unit to YED for upgrading.
 
 
Environmental, Airworthiness and EMC
The YED/A429-R2/VF6 Converter has been designed to meet DO-160D test categories listed later in this manual.
The unit has also been subjected to an Explosive Decompression test from 15,000 feet to 50,000 feet in a period of less than 100mS without effect.
 
 

The connections for the YED/429-R2/VF6 converter are via a D25 filtered plug as follows:

 

Signal Name
PIN #
 +28 Volts DC (18-72V)
1
 0 Volts (GND)
2
 ARINC 429 I/P +ve
3
 ARINC 429 I/P -ve
4
 ARINC 429 Ground (0V)
5
 A429 Rx2+ ARINC 429 input
6
 A429 Rx2- ARINC 429 input
7
 ARINC 429 Ground (0V)
8
 Reserved
9
 Relay Contact #1 Arm
10
 Relay Contact #1 Contact
11
 Relay Contact #2 Arm
12
 Relay Contact #2 Contact
13
 Relay Contact #3 Arm
14
 Relay Contact #3 Contact
15
 Relay Contact #4 Arm
16
 Relay Contact #4 Contact
17
 Relay Contact #5 Arm
18
 Relay Contact #5Contact
19
 Relay Contact #6 Arm
20
 Relay Contact #6 Contact
21
 RS232 Tx Output
22
 BOOT Enable input +28V DC
23
 RS GND
24
 RS232 Rx input
25
 
 
 

CUSTOMISATION TO YOUR REQUIREMENTS .....

CAUTION: SPECIFICATION SUBJECT TO CHANGE WITHOUT NOTICE

All units are designed to meet the European, US EMC regulations and RTCA DO-160G.

ARINC 429 2Rx to 6 Ch. relay Specifications

The YED/A429-R2/VF6 has the following features: -

 

Physical

The YED/429-R2/VF6 attaches to the airframe via four mounting holes. 

Height………………………………………       31.0mm

Width……………………………………….       90.0mm

Length…………………………….…..……     166.0mm

Weight………………………….…….…….     460 grams (approx.)

 

Serial Input/output

Format ……………………………...........      USB / RS232 for Firmware upgrade only.

 

Relay outputs

Number of relays ….....…………...........       6 (Part# V23040-A001-B201)

Relay 1 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

Relay 2 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

Relay 3 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

Relay 4 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

Relay 5 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

Relay 6 operates ..………………...........      Channel 1/2 Rx, Label nnn, bit pattern ‘xxx’

 

 
Electrical

Input Voltage………………………………     28V DC (18 to 72V DC operational)

Input Current……………………………....     60mA maximum at 28V DC

Electrically fused …………………………     500mA(non-resettable)

Thermally fused …………………...……..     102 ºC.(non-resettable)

Reverse polarity protected.

Protected against voltage spikes and brown-outs.

Power on reset using power supply supervisory device and watchdog timeout.

 

Bus

2x ARINC 429 inputs with automatic High/Mid/Low bit detection (100/50/12.5kHz).

Any two of 256 Label combinations.

ARINC 429 opto-coupled inputs.

 

Contacts

28V DC, 2Amp (non inductive load).

 

Environmental

Operating temperature range…...…....…   -40 to +85 degrees C.

 
 
 

CUSTOMISATION TO YOUR REQUIREMENTS .....

CAUTION: SPECIFICATION SUBJECT TO CHANGE WITHOUT NOTICE

All units are designed to meet the European, US EMC regulations and RTCA DO-160G.

ARINC 429 2Rx to 6 Ch. relay Downloads

   
download Click here to download the User Manual in pdf format.
[Size: 1,378kB]
[PASSWORD PROTECTED - To request password click here.]
 
   
   
 
   

ARINC 429  6-Channel converter