The SW-1 A/B switch is for I.F. switching in Trilithic's EASy system.
The small SW-1, measuring approximately 1 inch in size, is installed into the modulator's I.F. loop and is the only Trilithic hardware required at the rear of your modulator or processor for Emergency Alert activation.
The SW-1 switch is a fail-safe switch that operates at 40-50 MHz. In conjunction with the Trilithic LS-16P, the SW-1 provides an alternate I.F. signal to the channel during an EAS alert. For modulators requiring dual I.F. feeds, simply install two SW-1 switches at the rear of each channel.
The SW-1 switch receives its power, control and I.F. signal via a single coaxial drop cable fed from the LS-16P distribution amplifier. During normal operation, the SW-1 switch completes the channel's I.F. loop, connecting the modulator’s I.F. output and input.
When the Emergency Alert System is activated, a substitution I.F. signal and a control signal are applied to the SW-1's input port. The SW-1 then activates the EAS input to the modulator.

16 output IF distribution amplifier and switch controller for EAS.



Trilithic\'s SW-4 I.F. switch is a local contact closure designed for use in the Trilithic EASy system.

The SW-6 by Trilithic is a TTL controlled switch with two independent SPDT contact closures.


Trilithic\'s SW-IP is a network IP contact closure switch for remote switching in digital systems.
Trilithic’s warranty policy for Emergency Alert Systems (EAS) Equipment extends for two (2) years from the date of shipment, If covers mistakes or deficiencies in materials and workmanship.
Exclusions from coverage are for any of the following events occurring after the product has
If the EAS product is diagnosed as having failed for reasons other than the exclusions listed above, please call 888-895-7629 and request an RMA (Return Merchandise Authorization) number.
All returned merchandise must have the symptom clearly identified in writing, signed by the authorized representative of the sender and attached to the failed product. All returned merchandise must bear the RMA Number clearly marked in large numerals on the outside of the shipping carton.
All such failed products must be shipped to: Trilithic, Inc. 9710 Park Davis Drive, Indianapolis, IN 46235
EAS products returned without an RMA number clearly marked are subject to a twenty percent (20%) processing fee.
Trilithic, Inc. offers an optional EAS warranty period extension of two (2) years on materials and five (5) years on workmanship from the expiration of the original warranty period. This option must be exercised at the time of the original product purchase.