OTHER DEVICES

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IL-4A/IL-12A Annunciator Controllers

The IL-4A is a 4-channel lamp controller for annunciators.  It will sense active low or active high signals on 4 or more inputs, plus provide a lamp test function and the ability to provide dimming of all of the lamps. The installation guide describes the applications, and is also useful for understanding the IL-6A.  The IL-12A is three IL-4A devices on the same pcb.

 

IL-6A Annunciator Controller

The IL-6A is a 6-channel lamp controller for annunciators.  It will sense active low or active high signals on 6 or more inputs, plus provide a lamp test function and the ability to provide dimming of all of the lamps. There is no installation guide, so figuring out how it works is up to you.

The original device was packaged in a 25 pin backshell, similar to other products on this site.

TRX-232A 8-Channel RS-232 Buffer

The TRX-232A is an 8-channel RS-232 Buffer, also configurable as a dual 4-channel Buffer.  It is specifically designed to buffer RS-232C signals that drive multiple loads, such as GPS receiver outputs, or convert portable GPS receiver outputs to legitimate and reliable RS-232C compliant signals.

Buffering of RS-232 signals increases system reliability by boosting the noise immunity of serial data lines that are excessively loaded or are not designed to drive multiple loads.

The TRX-232A also provides redundant diode-isolated power supplies and grounds, thus avoiding single-point failures caused by blown fuses or tripped circuit breakers.

 

TRX-232A, packaged in a D-SUB 25 connector shell

 

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