Another option would be DZ 1000's or DZ 2500 switch machines. Peter Condro, who posted above, did all his Atlas switches with DZ (??1000??) motors. We had talked about the thermostat cable, mentioned above with the Atlas 6924 relay boards. (8) conductor.
Automatic non-derail feature with Tortoise requires positioning the non-derail input section(s), a bit further away from the switch, since the tortoise switch is slow moving, prototypical, not a snap action switch. Or you have to adjust track speed to accommodate the slow moving switch.
The tortoise switch is also designed for a dead stall. Once the switch moves the switch motor stalls, until required to move again. Apparently the motors are design for this feature. Snap switches have to disconnect after the move or the motor fries.
Another advantage to the tortoise switch motor is that it mounts under the table, is not visible. The DZ switch motors and Atlas switch motors are top side mount, (Atlas does have an under the table motor).
Motors are DC, you would have to install a DC power supply or use diodes. Atlas has a wiring diagram using Tortoise switch machines.
