At least one required to use any Bitswitch. (manual version)
This component is manually operated and is suitable for systems where the mobile decoders support DC analog conversion for braking, e.g. NCE, TCS, Digitrax, Lenz. One component serves multiple Bitswitches.

A dedicated power booster is required.
Needed if using Soundtraxx decoders. This component can be operated via CAB and is suitable for all systems. This device includes a "Set Speed Zero" packet encoder. This code generator broadcasts a set speed zero command and is addressable. Suitable for those layouts running Soundtrax, older NCE or other decoders that do not recognize DC conversion.

Does not require Bitswitch section control.
This module allows for the connection of any 5, 9 or 12 VDC accessory direct to DCC track power. The module supplies a positive voltage regulated current up to 1 Amp to power features such as lights, motor driven devices, billboards etc.

Does not require Bitswitch section control.
This BitSwitch can be used for triggering sound effects, closing a crossing gate, powering a X signal or any other purpose where it is desirable to apply 6 to 12 VDC to an accessory on the rail side.
Input power source can be 12 to 35 volts AC, DC or DCC.
Output power can be 6 VDC, 9 VDC or 12 VDC depending on the unit ordered.
Note: This BitSwitch will work for any layout regardless of the power used to operate the engines (AC, DC, DCC or BATTERY)

Used to stop trains when they enter an isolated section (Block, Station, Spur etc.). Timed stop is adjustable from 0 to 120 seconds. Is compatible with all BitSwitch controls.

A train entering either of two spurs will be stopped and held until another train enters the adjoining spur and then released to the main line.

Used to stop trains as they enter a siding dependent on the turnout position of that sidings exit. Is compatible with all BitSwitch controls. Includes Signal Control.

Controls one block on a line. Is compatible with all BitSwitch controls. Includes Signal Control.

Controls two blocks on lines that merge at a station where the operator wishes the trains to stop. Is compatible with all BitSwitch controls. Includes Signal Control.

Controls two blocks on lines that separate at a siding where the operator wishes trains diverted to the siding to stop and remain in the siding until another train passes on the MAIN LINE. Is compatible with all BitSwitch controls.

Controls Two blocks on lines that merge to a single line where the operator wishes the trains to stop only as traffic requires. Is compatible with all BitSwitch controls. Includes Signal Control.

Controls one block immediately proceeding track points and checks the position of the points (closed or thrown) and also checks both lines following the points for occupancy. Is compatible with all BitSwitch controls. Includes Signal Control.

Controls a section of main line that operates in a Bi-Directional mode. This BitSwitch accommodates Double Track to Single Track main to Double Track condition. Is compatible with all BitSwitch controls.

Controls a crossing where traffic flow in the automatic mode is always moving in the same direction on either crossing line. Allows the trains to cross on a first come first serve basis. Is compatible with all BitSwitch controls.

STAND ALONE DEVICE
Not suitable for large scale layouts.
Controls a crossing from all 4 directions. Allows the trains to cross on a first come first serve basis. This "Crossing Guard" can be used as a stand alone device or with "Block BitSwitches" on each approach for additional control but is not fully compatible with all BitSwitches controls.