Annunciator Controller (IL-4A)
- Weight:
- 0.05 KGS
- Shipping:
- Calculated at Checkout
Description
The IL-4A and IL-12A are four or twelve-channel lamp controllers for experimental aircraft or industrial applications. They allow up to eight (or 24) circuits to be monitored for a mix of active-high (switched to power) or active low (switched to ground) inputs. Two isolated inputs per channel are provided, sharing one indicator lamp. Activating either or both inputs will operate the corresponding lamp.
Flexible power source inputs are provided, allowing lamp illumination control from a panel dimmer bus, or powering from redundant sources.
The IL-4A and IL-12A drive LED lamps or incandescent lamps up to 100 mA each. LED lamps require an external current limiting resistor if not already provided in the lamp assembly. A push-to-test input allows all lamps to be tested for integrity, regardless of sense polarity.
Inputs to the devices are active HIGH, active LOW, or mixtures of both. A useful function is the ability to use any channel's two inputs to sense a polarity-reversing switch, such as used for motors. For example, this allows a simple indication of flap or landing gear motor operation, independent of direction. For the D-Sub interface, the input side is a female board mount connector, while the lamp
side is a male board mount connector.
Technical Summary
- Four or twelve independent annuciator lamp drivers.
- Fully dimmable from panel dimmer bus for night operation.
- Push-to-test input for lamp integrity testing.
- Active low (switch to ground) or active high (switch to power) sense inputs.
- Two independent isolated sense inputs per lamp, configurable as two active low or one active low and one active high input.
- 3 to 15 Volts DC operation, 100 mA per lamp.
- Small footprint of 2.5” x 1.3” (63.5 x 33 mm) for the IL-4A or 2.5” x 3.8” (63.5 x 96.5 mm) for the IL-12A.
NOT FOR USE IN CERTIFIED AIRCRAFT.
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