Protocol is all serial and fairly well documented by NCE in the accompanying documentation. NCE cab bus wiring schema actually shows the latter. The RJ12 is a 6P6C and the RJ11 is a 6P4C means 6 wire "slots" but only 4 actually being used. Note: some NCE documentation refers to their cab bus connector as an RJ11, others as an RJ12. The USB part runs at 3.4V and the PIC16 part runs at 5V. In the middle is a simple dual opto coupler that carries the serial TX and RX yet isolates both parts. On the other side is the PIC16 and the RJ12 jack, powered by the cab bus. The board itself is really composed of 2 obvious parts: the USB port and the CP2102 on one side, powered by the USB bus. For Windows, I think you can now let Windows find it automatically for you. For Linux you probably already have the cp210x driver installed.
#Test rocrail drivers
Which means drivers are readily available for Mac, Windows or Linux and can be found on this NCE web page. On the USB side this is nothing more than a serial port using the ubiquitous CP2102. Also note that I'm using the NCE USB V7.įirst, how does the board work? At a high level, it's extremely simple: Now all that follows is based on my own limited understanding of the board so take it with a grain of salt. Sometimes I also want to go beyond what JMRI or RocRail offer and have direct control on my layout with my own software, either running on Linux or Arduino. If all you're going to use is either JMRI or RocRail, you can't stop reading at that point. RocRail page for the NCE USB connection.For most people that means running JMRI or RocRail, which both have excellent support for this board: The board doesn't do anything by itself, it needs to be controlled by something.
The whole point is to have a computer operate and interact with the layout. So, what we really have here is basically a cab throttle, but without any buttons nor screen.
#Test rocrail how to
Mark Gurries has a very good description of how to configure it, so check his NCE USB page for details, which explains the differences between V6 and V7 and the various limitations. On the cab bus, the interface shows up as cab number 3.ĭepending on how you configure it using the jumpers that cab number might be fixed or changeable via software. NCE provides a bunch of technical info on their cab bus page : There are 4 jumpers to configure depending on the kind of command station is used with it. On one side is a USB type B connector, and on the other side is the RJ12 which connects to an NCE cab bus using RS485. This is a fairly simple and modest looking board: It's available from the NCE online store as well as many eBay or Amazon-based stores. The USB interface connects a computer to an NCE command station. This article explains what is the NCE USB interface, how it works, and more important how can we simply and efficiently use it with an Arduino directly with a simple serial port instead of USB.
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