LUN 1795.2

Attitude indicator (horizon) EHSI

LUN 1795-2 thumbnail
LUN 1795-2

The device is used to bidirectional data transfer between RS422 and RS232 line and to convert the incoming data from the RS422 line to the discrete outputs. The device also contains 4 currently unused digital inputs.


Technical parameters

RS 232: 1× service port

ARINC 429 RX: 4× input port

GPIO: 4× digital input or 2× relay output

AN IN: 1× analog input

ARINC 407/Russian: 3× synchro/Resolver

Inputs: 1× vertical and lateral deviation

RS 232/422 (optional): 2× input port

ARINC 429 TX (optional): 2× output port

MIL 1553 (optional): 2× bus

DIN (optional): 2× digital input

General Parameters

Voltage (nom.): 27,5 V DC

Voltage (operative): 11…30 V DC

Current (nom.): 0,3 A

Power Consumption: 10,25 W

Operating temperature: -55 – 70 °C

Storage temperature: -55 – 85 °C

Humidity: max. 95 %

Connectors: Circular 37 pin

Dimensions: 132 × 123 × 123 mm

Weight: 1300 g ± 10 %

Display Parameters

Display area: 89,28 (H) × 89,28 (V)

Number of dots: 640 × 3 (H) × 640 (V)

Number of color: 262k (6bit/color)

Luminance: 1200 cd/m2

Viewing angle: >-80~80° (H), -70~80° (V)

Back-light unit: Edge-light, LED

AS11 can be connected to Avionics-grade Mission Display Unit MDU – 268. Device receives data for communication with external keyboard via RS422. Depending on the received data are switched the relay outputs.

lun 1795 2 block diagram