AETI-485/TTL1: Atkinson Electronics Trunk Interface

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In-Stock products will usually ship within 3-5 business days. For order quantities of 3 or more or for expedited orders please call to verify. Purchases without an expedite are processed in the order in which they are received.

Product Overview

The Atkinson Electronics SM2 Trunk Interface (AETI-485/TTL1) is a TTL to RS-485 repeater module.  It was designed to extend STAEFA’s TTL communication trunk by repeating STAEFA’s communications in either STAEFA’s TTL format or in a RS-485 ½ duplex format.  The RS-485 format allows for communications to be extended over 2,500 feet, while the TTL repeater allows additional quantities of Smart II controllers to operate on a single System panel trunk. The AETI-485 uses an on-board isolation transformer to provide isolation between each of the TTL and RS-485 communication ports.

The AETI-485 is ONLY available in a double TTL trunks.


The AETI-485/TTL1 is no longer available. Please use the above link for the TTL2 version. 



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