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Important Update on Pricing and Tariffs
As you are probably aware, the U.S. has implemented significant new tariffs on goods imported from China and Hong Kong, effective April 10th. These duties directly affect the costs for many of our components and raw materials.
Over the last several years we have taken advantage of low cost overseas production opportunities to replace the reliance on our aging manufacturing equipment, and we have further taken advantage of limiting the size of our production runs in order to keep our import duty costs to a minimum. We have done this in order to continue to bring you low cost products in spite of the rising costs of nearly everything around us. Unfortunately, this has left us very exposed to these sudden tariff changes, and we have no recourse other than to pass these increased costs on to you, our customers.
We appreciate your understanding and continued partnership as we attempt to adjust to these new market conditions. We will be investigating various options such as simply raising prices to cover the new tariffs, moving production back into our own facilities, or subcontracting to other facilities. Expect our product pricing to be volatile as we navigate these changes.
— The RR-CirKits Team
2025 NMRA LCC Information Sheet.
NMRA PSR Clinic - Arizona Railroad Historical Society Experience with LCC.
Link to Original NMRA LCC Demo Layout
RR-CirKits is one of your best sources for NMRA LCC compliant products.
NEW!
Tower
LCC +Q
- Tower LCC image
- Support for 16 Input/Output lines.
- Includes drive for any combination of:
- Up to 16 Input Lines.
- Up to 16 Output Lines.
- New Internal Logic Engine with 4032 characters of logic statements.
- Communicates over the CAN bus version of LCC.
- CDI controlled configuration via Software. (e.g. JMRI DecoderPro 5.6 or later.) Both reading and writing of description values is directly supported.
- All configuration is stored internally in the nodes, and may be changed at any time on any system. (no local files to keep up to date)
- Automatically saves all data including input/output states during power down.
- Boot Loader protocol allows firmware upgrades over the LCC Bus connection.
- Power is supplied over the LCC Bus.
LCC-LocoNet
Gateway
- LCC-LocoNet Gateway image
- Manual
- Add LCC nodes to an existing LocoNet layout.
- Add LocoNet devices to an LCC controlled layout, including LocoNet throttles to Traction Control Protocol.
- Supports up to 1024 arbitrary Input/Output conversion pairs.
- Supports LCC 'Well Known Events' for accessory commands and sensor inputs to LocoNet LT & LS messages.
- Includes an internal NMRA CAN bus LCC® to USB interface. (no external LCC Buffer-USB required)
- 2,500 Volt High Speed Digital isolation between LCC® CAN bus, LocoNet®, and USB port.
- USB Type C connector for PC connection.
- Dual RJ45 connectors for easy CAN bus LCC® loop through connections.
- Dual RJ12 LocoNet connectors for easy LocoNet® loop through connections.
- 4 LED display status. (Sync, USB, Data, and On)
- Small package size. Just 2-7/16" x 3-5/16" x 1-1/8".
- Ready to run unit includes USB cable, LocoNet cable, LCC Terminators, and 15V power supply. – Nothing extra to purchase.
- Standard 125,000 Baud CAN bus LCC interface speed. – No jumpers or switches to set.
- Buffered inputs and outputs for full speed, error free data transmission.
- Powered directly from LCC® bus connections* and USB port, or else create a powered LCC bus using the unit and power supply.
- Includes optional stand alone LocoNet circuitry.
*Note: Requires a powered LCC bus. [50 mA. bus load]
Signal LCC
- Signal LCC image
- Support for 16 signal lamps plus 8 I/O lines.
- Each signal mast may use as many lamps as required.
- Available with signal connections using miniature screw terminals (-S) or 10 pin headers. (-P)
- Support for 8 Input/Output lines.
- I/O lines includes drive for any combination
of:
- Up to 8 Input Lines.
- Up to 8 Output Lines.
- Internal Logic Blocks with up to 32 conditional statements.
- Up to 8 virtual track circuits for easy linking to other signal masts.
- Communicates over the CAN bus version of LCC.
- CDI controlled configuration via Software. (e.g. JMRI DecoderPro 4.8 or later.) Both reading and writing of description values is directly supported.
- All configuration is stored internally in the nodes, and may be changed at any time on any system. (no local files to keep up to date)
- Automatically saves all data including input/output states during power down.
- Boot Loader protocol allows firmware upgrades over the LCC Bus connection.
- Power is supplied over the LCC Bus.
LCC Buffer-USB
- LCC Buffer-USB image
- NMRA CAN bus LCC® to USB interface.
- 2,500 Volt High Speed Digital isolation between CAN bus LCC® and USB port.
- Simplify your LCC configuration and/or use a PC based CTC.
- Compatible with JMRI OpenLCB.
- Type B USB connector for PC connection.
- Dual RJ45 connectors for easy CAN bus LCC® loop through connections.
- 4 LED display status. (Ready, Power, Transmit, and Receive)
- Small package size. Just 1-1/2" x 2-1/4" x ¾".
- Ready to run unit includes USB cable. – Nothing extra to purchase.
- Standard 125,000 Baud CAN bus LCC interface speed. – No jumpers or switches to set.
- Buffered inputs and outputs for full speed, error free data transmission.
- Powered directly from LCC® bus connections* and USB port.
LCC Repeater
- LCC Repeater image
- Bit level repeater connects two LCC ® CAN bus segments.
- Quad RJ45 connectors for dual LCC ® CAN bus loop through connections.
- Includes a CAN bus data monitor LED for network trouble shooting. 2 LED display.
- Small package size. Just 2-1/2" x 3-1/2" x 1". (including mounting flanges)
- 600 ma power supplied to each LCC ® CAN bus segment.
- 15VDC 1.2 Amp Universal Switching Power Supply included.
LCC Terminator Pair
- LCC Terminator image
- NMRA CAN bus LCC® Termination Pair.
- May be used to provide the required termination at each end of the CAN bus LCC®
- Balanced CAN termination provides the best noise rejection.
- Includes
CAN bus Power Indicator and CAN bus data monitor for
easy network cable trouble shooting.
LCC Power-Point
- LCC Power-Point Image
- LCC Power-Point ties together 2 LCC jacks, a Traffic Monitor, and a power supply.
- Create a powered LCC bus for simple wiring by powering your LCC Nodes over the cable.
- The LCC Power-Point supplies 1/2A to each LCC CAN Bus cable.
- PS-S-15-1200 universal switching power supply is included. (Terminator and CAN bus cable shown are not included)
- Additional Power-Point units may be added as required by your system's power requirements.
LCC® is a trademark of the NMRA
LocoBuffer-NG
- Next Generation USB to
LocoNet® interface with type A USB
connector.
- Plug and play for Linux, Mac, Windows 10 & 11.
- 2,500 Volt Digital isolator between USB and LocoNet®
- Keep your system up and running through ground loops, spikes, and surges. Rogue currents and ground issues can wreak havoc with your data, and even damage your LocoNet.
- Buffered inputs and outputs allow use with all operating systems with USB support.
- More robust output design, reduced sensitivity to wiring errors.
- Even smaller (dongle style) package size. Now just 2" x 1" x 5/8"
Digital Isolation: Your best investment — Keep your system up
and running through ground loops, spikes, and surges.
Windows 10 & Windows 11 Install Instructions for LocoBuffer-USB Drivers
LocoBuffer-USB drivers (Driver download not required for LocoBuffer-NG)
Now includes beta drivers for Mac Big Sur.