LocoNet Control Network (Control Bus)

Q:  Can I add a booster to my Zephyr? A:  Yes. Since the DCS51 Zephyr Xtra and DCS50 Zephyr are equipped with LocoNet, adding additional boosters is easy; you simply divide your railroad up into power districts and add the boosters and their individual power supplies. These are connected together using LocoNet cables. Because the Zephyr Xtra is rated at 3 amps and the Zephyr is rated at 2.5 amps: most boosters have higher ratings, you may want to have the Zephyr control a smaller area that has fewer power consumers (locomotives, lighted passenger cars), such as a main line ...

Adding duplex radio, infrared or simplex radio to your existing Digitrax system is simple because of LocoNet.InfraRedYou probably already own a DT300, DT400, UT4 or DT402 series throttle. All of these are "InfraReady." These all come with two IR emitters pre-installed. All you have to add for IR operation is one or more UR90 Infrared Receivers to your layout. Most layouts require multiple UR90s because the infrared signal is line of sight. This means that your receiver will need a sight path to the throttles.Simplex RadioDigitrax throttles with an "R" at the end of the part number are simplex radio ...

How Many UR90 Infrared receivers will I need?One UR90 should provide complete coverage if your room is typical, with a hard surface floor and finished walls and ceiling. However, several things can cause the need for additional UR90s, such as: larger room, odd shaped room, acoustical ceiling, carpeted floors, or book shelves or other things on the walls that can interfere with the infrared signal. How many more you'll need depends on how many of these "impediments" are in your layout room. This Infrared signal should be considered to be line-of-sight, but the IR signal does reflect off of other objects, thus the concern ...

I still don't understand the bus stuff. Wires come from the command or booster and run under the track layout and have feeders coming off. I understand these feeders connect to the track. Where do you connect the wires coming from the power source? (ie: Zephyr) Is there a particular place on the track layout it is to connect to?The power connection for the command station and boosters is directly between the power supply and these units.  It is not connected to the track!  Please see the diagram below: In this case, the Zephyr is the Command Station and Booster ...

Previously, we have recommended RJ12 connectors for LocoNet cables. While there have been online sources such as Digi-Key, Mouser and others, they have become harder to find locally. There now appears to be a easily available alternative. Many national big-box home improvement stores have RJ11 6P6C meaning they are 6 position 6 conductor and can be used as RJ12 although labeled as RJ11. These must not be confused with four conductor connectors since LocoNet has six conductors. You will need the connectors, the six-wire flat cable and a crimping tool. We paid $20.00 in February, 2008, for such a tool ...

  Can a DS64 be powered from the LocoNet RailSync lines? No.  The LocoNet cable is used only for LocoNet commands. The DS64 must be powered via the rear modular connector (12-14 volts AC or DC) OR via the AUX power 12-16 volts DC using AX1(-) and AX2(+) on the circuit board at the front of the unit. It is also possible for the DS64 to get it's power from the track hooked to Trk A and Trk B terminals, but experience has proven that this power source may not be reliable in certain situations.  NOTE: Use only the rear power jack or ...

Q:  Your recommendation is to have a DB150 booster at no more than 50 foot intervals. Will one booster handle all track in that 50 foot area, i.e. a passenger terminal throat with many turnouts and switches? A:  The "50 foot intervals" applies to the maximum distance which boosters can be located from each other. This is a conservative recommendation.  You should consider how much power will be consumed in a district when locating boosters around the layout. If your power district is a single track railroad stretching over hundreds of feet of linear distance, boosters should be placed at 50 ...

Under what conditions can the PR3 be used as a Stand Alone LocoNet Terminator? The PR3 is so designed so that it can be configured to act as a stand alone LocoNet controller in the event that a Digitrax command station is unavailable for the control of a series of LocoNet compatible devices. There are two major situations that would require the PR3 to act as a stand alone LocoNet controller. The first situation is where one of the many advanced features offered by the LocoNet and the various LocoNet compatible devices is desired to be used on a layout ...

DS64 can be used as a LocoNet device. The two RJ12 sockets (above, left) on the back of DS64 are LocoNet Ports for connecting your DS64 to LocoNet.  Either can be used to connect to LocoNet, with the other being used to connect to other LocoNet devices.

To Test LocoNet Cables With an LT11. Unplug the wire harness from the LT1.2. Plug one end of the LocoNet cable you want to test into the LT1.Note: When making your own LocoNet Cables, it is important to make them in a consistent manner. At Digitrax, the white wire is always on the right side of the plug when the plug is viewed with the clip at the top.3. Connect the other end of the LocoNet Cable being tested to any powered Digitrax Booster’s LocoNet Port A or B. Be sure you have at least one Digitrax throttle plugged in ...

LocoNet typically supports a total cable length of up to 2,000 feet with no two devices connected by more than 600 feet of cable. LocoNet wiring is totally free-form. We do not recommend looping LocoNet back on itself.Making your own LocoNet Cables is simple and cost effective. LocoNet wiring consists of readily available wire and connectors. LocoNet uses flat 6 conductor wire and 6-pin RJ12 connectors. This kind of wiring is typically used for telephone wiring. Most Digitrax dealers can make up LocoNet cables for you. If you plan on wiring a large layout, you may want to invest in ...

1. The UP5 Universal Panel is designed for mounting on the fascia board of the layout. Cut a hole approximately 2.5” W x 1.5” H in the fascia board. Insert the UP5 through the hole with the face plate on the front of the fascia board. Attach the UP5 face plate to the fascia board with four #6 screws. Note: The UP5 uses the black screws to mount the front fascia plate.2. Connect the UP5 to LocoNet using pre-tested LocoNet cables. There are 2 LocoNet Jacks located at the back of the UP5 board for connecting LocoNet devices on your layout. ...

Will I be able to use Transponding with other DCC systems?Yes. You will have to run LocoNet, instrument your layout and install TL1 or TF4 or transponding decoders in your locomotives. You can then use a computer on LocoNet to display position and ID information for transponder equipped locos. LocoNet will run independently of your existing non-LocoNet system.

I understand that LocoNet is used for transponding "feedback."  How can Digitrax systems handle both DCC and transponding without interfering with other track level communication and without adding another communication or feedback bus like other system have to do?LocoNet is a true network with future expandability built in. Part of that future is here now with transponding. LocoNet was engineered from the very beginning with things like this in mind.If you are already using Digitrax LocoNet, you will not have to add a "feedback bus" since this is already incorporated into LocoNet's design! If you are using transponding with a ...

LocoNet is Digitrax's method of communication between LocoNet compatible devices on a model railroad layout.  LocoNet compatible devices are designed to work together on the network, and in some cases can also accept DCC commands from  the track, but often go beyond the scope of simple DCC train control.   LocoNet is a peer-to-peer Ethernet type multiple access network.  Because of its design architecture, it is very robust and powerful.  Layout implementation is simple and wiring is free form with minimal limits. LocoNet is designed to run an unshielded 6 conductor ribbon cable.  Digitrax recommends using flat, six-conductor telephone wire ...

LocoNet's "ethernet like" architecture seems interesting and more advanced than the systems used by other DCC manufacturers. But, at the numbers we are talking about (a few controllers and perhaps 10-20 decoders), does it really make a difference?If your system operates with a few throttles and other devices attached any of the commercially available systems will work today. But what about tomorrow? Remember when a hard-drive bigger than 32Mb seemed excessive- and remember when DOS had to change to 16bit FATs/ directories? Also, the LBA access change at 540Mb also once seemed unthinkable!!The network structure of LocoNet is very important ...

Although this is a simple railroad, it will have some advanced features. When the railroad's sectional modules are first assembled, the electrical connections are simple. The railroad will be controlled with a DCS50 Zephyr, using a PM42 Power Manager for short circuit protection. One section of the PM42 will control the inner oval of track, a second section of the PM42 will control the outer segment. This is done so that if a train derails on one loop, the train operation on the other loop will not be affected. Because the DCS50 is rated at 2.5 amps, the PM42 must ...

The first Digitrax system to use LocoNet was Big Boy. Each Big Boy system came with a LocoNet Adapter 1 (LA1) or LocoNet Adapter 2 (LA2). Documentation for these units was minimal, but is included here. LA1 LA-1 came with a simple card: LA-1 LocoNet Adapter Use this cable to connect your DB100 to your DT200 command station unit and to your LocoNet command bus. The LA-1 allows you to connect more than one throttle to your Big Boy System. You only need one LA-1 in a Big Boy System. If you are upgrading to Big Boy from Challenger, you ...

The jacks on the front and sides of the UP5, UR92, UR91, UR90, and LNRP front panels are Throttle Jacks and should only be used for connecting throttles to LocoNet.  They should not be used to connect to other LocoNet devices.  The jacks on the back of these units are LocoNet Jacks that are used for connecting LocoNet devices to the network.  Technically speaking! These units were designed to have the FRONT jack's second Railsync differential signal run as a diode-or'ed power source (for throttles).  This means that some cable orientations and power loads could cause unexpected operations in downstream LocoNet devices ...

What does SLP mean on the DCS50? The "slp" message on the DCS50 means that the unit thinks it is temporarily in sleep mode. This may occur if the LocoNet data line is grounded for more than 1/8 of a second. You may initially try to exit Sleep Mode by cycling the "Exit" key on the DCS50, or powering down and repowering the unit. If this problem continues, you must check your LocoNet for a shorted connection.

LocoNet is a peer-to-peer local area network, a communication network that is similar to communication networks used in today’s computer industry. There are five types of computer network topologies: star, bus, tree, freeform and ring.  The only prohibited configuration for LocoNet is the ring.  LocoNet should never be looped back on itself.Note: In the diagrams below, CS represents a Digitrax Command Station and the M represents any LocoNet compatible module or device.1.  The Star Topology is where all devices are connected to a central hub by individual legs. 2.  The Bus (Daisy Chain) Topology is where all devices are connected to ...

Q:  Can I loop LocoNet?  Is there any benefit to doing so? A:  LocoNet should NOT be looped back on itself.  The design of LocoNet allows branching in different directions, but LocoNet must not be set up as a loop or ring topology.

Q) You are offering a Loconet Repeater Module LNRP. Is it an RailSync Booster, too? There is no description in the PDF-File about this attribute. A) The LNRP boosts (and separates) the Railsync "Standard" outputs from the master command station ("Protected" Railsync), so if there is a problem with this separated "Standard" Railsync copy, the master Command Station is unaffected along with other devices like track boosters that need good Railsync copies. This boosted Railsync is also over-current protected and the LNRP will turn off an overloaded "Standard" Railsync and automatically retry re-powering, so when the fault clears the "Standard" ...

Direct Home Wiring: A wiring system where the DCC booster powers each rail via an individual wire.  Each booster is wired to it's own track power section and there is no electrical connection between boosters. This means that each power district is double gapped and is connected to it's own booster.  The boosters are in turn connected via LocoNet to the command station providing one source of commands for the entire layout.Digitrax recommends using only Direct Home Wiring for all Digitrax layouts. Non command control layouts typically use common rail wiring as part of their control method. This means that one rail ...