Not reccomended for new users but still available for those who love them
The Quad can be used to control 4 turnouts using servos. It has a DCC decoder built in and 8 IO ports for switches to control the turnouts locally and for driving indicator LEDs. An expansion port can be used to add relays for powering frogs or other devices.
Skill Level: Intermediate - requires programming of servo positions. Use the Micro Singlet or Octopus for easier installation.
Quad-Pic Servo DCC Accesory Decoder
Use to control four turnouts using model R/C style servos. Servos are easily mounted under the turnout and provide a reliable and inexpensive method to switch points. the Quad is very versatile, you can move the points by DCC commands from your throttle, use buttons on the fascia, control from a signal system or any combination of the 4. LEDs can be hooked up to indicate the direction of throw.
DCC - The unit can be completely programmed from the buttons and LED indicators on the board or you can use programming on the main to set the CVs. The DCC address is easily programmed by setting a jumper and then issuing the desired accessory address from your throttle. This avoids the confusion of how DCC Accessory addresses are stored in the CVs.
Power - The board has a beefed-up and separate regulator circuit for the servos to eliminate power loss to the microprocessor. The best way to power the board for DCC is to use the specially designed DCC Accessory booster which can power up to 6 Quad-Pics. For DC use any power supply from 7.5-18V AC or DC can be used. It is also possible to supply 5V power directly to the servos. The servos are completely opto-isolated to prevent ground loops.
Expansion - The new design has provisions for adding daughter boards to expand the capabilities. One daughter card has relays for switching the frog power or controlling some other accessory. Another daughter board lets you add on stall-machines (such as the Tortoise™) - you can still use the servos at the same time.
Signals - Inputs for signal systems have been added. An expansion board that provides full opto-isolation of the signals is available soon. Download the Quad Servo Driver Manual
Quad-Pic Auto Programmable Servo Decoder
Quad servo driver and DCC decoder board. Updated version with a 2A switching power supply and auto-alignment of the servo positions.
Programming is done with these buttons and LEDs. All states are clearly indicated - no counting presses and getting confused.
Both servo and controller ports use standard 3-wire servo cables for simple hookup.
New - Remote Relay Daughter Boards
Put your relay closer to the turnout.
DPDT - add both a signal and a frog.
Frog wiring instructions on singlet page.
Remote Relay Daughter Board Add this board to the Quad-Pic by plugging it into the expansion port and you have 4 ports for plugging in the remote relay board above.
RDB001 $2.00 USD
Remote DPDT Relay Board This remote relay plugs in to the breakout daughter board (below) and gives you two circuits for powering frogs, signals and so forth. Board has a 12V, 1A hi-sensitivity relay that draws just 13 mA, relay drive circuitry, and a terminal block for easy wiring. Can also be used without the Quad - red wire, 12V, black wire, ground, white wire, signal (0V = OFF, greater than 1.4V is ON). Comes with a 12" extension cord - extra length can be added with servo extensions.
RDR001 $7.00 USD
Remote SPDT 10 A Relay Board This remote relay plugs in to the breakout daughter board (below) and gives you one high-power circuit for powering frogs, signals and so forth. Board has a 12V, 10A hi-sensitivity relay that draws just 30 mA, relay drive circuitry, and a terminal block for easy wiring. Can also be used without the Quad - red wire, 12V, black wire, ground, white wire, signal (0V = OFF, greater than 1.4V is ON). Comes with a 12" extension cord - extra length can be added with servo extensions.