Want operating block signals on your layout, but not the trouble of insulated rail gaps and resistor wheel sets? The Azatrax TS2 is a block signal control circuit that uses two infrared (IR) sensors to detect trains passing a block boundary, and operates two block signals at that boundary (one signal for each direction). The TS2 should be of particular interest to builders of traveling modular layouts. Multiple TS2 circuits can be linked together with a simple 2-wire connection to enable signals on neighboring modules to be coordinated. If the neighboring module does not have a TS2 circuit, your module's TS2 will automatically revert to a timed mode. In timed mode, the TS2 measures the speed of a passing train and then changes the signal aspects to simulate the train going through successive blocks down the track. The infrared sensors are pulsed to eliminate effects of room lighting. No adjustments are needed when the room lighting changes or if you move to a different location. The IR detectors will work in complete darkness. The TS2 automatically senses whether your LED signals are common anode or common cathode and adapts accordingly. Current limiting resistors are built in. The TS2 does not work with incandescent bulb signals. An on-board jumper lets you select 3-aspect/2-block or 4-aspect/3-block operation for most types of LED signals. It also has an interlocking function allowing you to set a stop signal for draw bridges, level crossings, etc. The TS2 is available directly from Azatrax, http://www.azatrax.com/TS2 Cost is $39.00 USD each, or $99.00 USD for a 3-pack, plus shipping/handling. peasy
