Is an NCE 5 amp power pro 5 amps peak or 5 amps continuous?
deleted
Download the Power Pro manual here, see pg 19, which specifies 5.14A continuous.
With proper ventilation, any of the 5 amp systems will supply 5 amps. I wouldn’t even have this on the radar as criteria for what system to get. And most people way overestimate hoe much power their trains draw - I think conditioned by all the years of thoise overrated MRC power packs, saying they put out 2 1/2 amps and then struggle running just 2 locos.
–Randy
Thanks very much all. Could someone please direct me to the right doc/page on the DCC spec that descibes the specs on the signal that a booster is expecting so I can read up on all this. Thanks so much.
I would suggest the following website:
https://sites.google.com/site/markgurries/home
Main Website is DCC in general.
This is NCE’s website with manuals.
https://ncedcc.zendesk.com/hc/en-us/articles/218165223-5-and-10-amp-System-Manuals
This link should open the .pdf you need. It is the most recent copy.
https://ncedcc.zendesk.com/hc/en-us/article_attachments/211497866/PH-PROv2007.pdf
Please note that when it says “grounding” on page 23, this is not meant to be an actual ground. The intent is to connect all of the boosters and the command station together.
I would also suggest joining the NCE-DCC Yahoo Users group.
As far as the actual DCC standards go:
https://www.nmra.org/index-nmra-standards-and-recommended-practices
S-9.x (series) are the applicable DCC standards.
Im am pretty sure that the communication between command station and booster is proprietary. The only thing that is spelled out in the NMRA standards is interface between command station and decoder.
So if i’m Reading this right, the command station puts out a maximum of 1 amp (with some flexibility on the voltage) and this could either power a basic DCC system (for example EZ Command) or it could be sent to a booster, which boosts that up to a more powerful level (like 5 or 10 amps). Is that sort of the gist?
The club I use to belong to has a five amp NCE system. I connected a high wattage rheostat and lowered the resistance until the booster tripped at about 4.97 or so amps. It held about that until I lowerd the resistance slightly more. The club has a DCC ampmeter The booster sits in open air.
The way I understand it, boosters do not send amps. They send voltage. Amps is what the load draws.
Rich
Not exactly. Typicaly basic DCC systems do not need a separate command station to power them. Systems like the Ez command typically come with everything you need to get up and running, but Ez command is a dead end on upgrades.
The Bachmann Ez command is a command station itself. You cannot have two command stations connected to the same layout.
Yes, sort of
The PH-pro 5amp is an all in one piece of equipment. It is a command station and booster in one box. You can add addtional 5 amp boosters to create separate 5amp power districts (if you are building a layout that will be running 200 car trains and 25 dcc sound locomotives all at once).
If you are in HO or smaller scales, the 10amp system is not meant for you. It is designed for larger scales. See photos on Mark Gurries website where someone melted a locomotive due to a high resistance short circuit.
You might be able to use the NCE CS02 command station with a different company’s booster, but why would you want to?
Difference in price between the CS02 (Command Station only) and the PH-Pro Box (command station with 5amp booster in the same box) is $110. Why risk a compatability issue?
Also, you will need a throttle with your DCC system. This part is completely proprietary*. If you buy an NCE system, you need to buy their throttles. Same goes for any of the other manufcaturers (command station and throttle have to be made by same company). I would recommend purchasing at least 1 Pro Cab.
This is the 5amp starter set.
Are you shopping around for DCC systems or just trying to learn about the standard and how they work?
I am trying to learn about the standard and understand how they work.
DCC, as opposed to Mike’s Train House’s (MTH) DCS, is an open source provided originally by the Lenz corporation which still makes DCC systems. When it became the official standard of the NMRA (National Model Railroad Association), other companies were able to offer their versions that could compete. So, we have EZ-DCC, NCE, Digitrax, Roco, CVP, and some others, but still including Lenz. And several companies only offer accessories and decoders, but not DCC operating systems of their own. TCS is an example.
If you’d like to spend a learning afternoon today, it being a Sunday, you could google NMRA and find their recommended practices and their standards for all sorts of rail-related topics from track gauges and clearances to DCC standards.
Unlike Direct Current of old (and still justifiably wildly popular in the hobby with many variants of control system), where the voltage varies to the rails depending on the performance one wants from the drive mechanism inside the locomotives, DCC maintains set operating voltages in a square wave AC (Alternating Current) to the rails. The locomotive’s decoders then interpet signals transmitted along the rails based on the inputs you stipulate via your control paddle or throttle. The decoder tells the locomotive what to do, whether it’s lighting or movement, and in some case which sounds you’ll want. Voltage to the motor depends on the speeds assignments YOU tell the system to tell the decoder to do. But, the voltage is constant to the rails…always.
The signal fromt he command station IS the DCC packet stream. All a booster is, is an amplifier capabale of reproducing square waves. In fact there is at least one design that uses an common monolithic audioo amplifier chip, which is not really what the chip was designed to do since a square wave in audio usually means you are severely clipping. However, there are numerous booster designes out there with published schematics so you cna see for yourself just how simple they actually are. All the smarts to keep track of throttles is in the coommand station, and even that really comes down to some code in a microcontroller with a clean square wave output to drive the boosters. See the DCC++ stuff made using Arduinos.
Why would you want to use the NCE CS02 with other boosters? Maybe you like NCE’s throttles, but want to use a cheaper booster - Tam Valley’s are under $50 in quantities of 3 or more, so if you want to give each power district a booster… Or maybe you used some other system and have multiple boosters but want to convert to NCE. You can just swap out the command station and be done, no need to change all the existing boosters. Various booster brands are generally compatible, at least electrically, although each brand tends to use their own cable format, so to interconnect them you may have to make up a cable to link the correct pins on each side.
–Randy
Every DCC system needs one and only one command station. The command station generates the DCC signal that will be sent to the rails. This signal usually low current is then sent to one or more DCC boosters. This sinal is the actual Bi-directional DCC signal that is applied to the tracks and decoders will get their commands from and rectify for operation. From the command station the signal does not have enough current to run a train. The booster “boosts” the signal and outputs it to the rails or any other device that requires DCC power to operate. It does not boost the voltage of the command station’s signal. It increases the amount of available current that can be drawn by decoders or accessories.
Many systems include a command station and booster in the same package. Many (not all) allow the command station to be turned off so that only the booster is operational. This allows multiple units to be used on the same layout because there can be only one command station. There are also “just boosters” available and there are also plans available to build your own. Since the actual signal being generated by teh command station is an NMRA standard, most boosters will work when connected properly. This interconnection really depends on the manufacturer to supply the proper specs to do so. Digitrax, NCE, Lenz, and CVP as well as others provide the information. It is always best to check before making a purchase.
Command stations also use a command architecture that is proprietary to each manufacturer. This means that although any booster should work with any command station, only throttles compatible with a particular command station will be able to control it. This is where the user needs to be comfortable with their choice of system. Any command station will run DCC trains. Only the throttle interface for that particular command station will actually control it. Those throttles are what the operator will actually see. The rest is usually sitting somewhere under the layout.</
I have the NCE Power Cab. Two amps. A wall wart plugs into a panel which powers the hand held cab which is also a booster. I can plug the output of the cab into an NCE smart booster which is good for five amps.
Just take your time reading through all the links. Don’t over think this. Manuals are online.
Rich
Question: So knowing there can only be one command station per layout … when you go to your club, and they have jacks all around the room where you can plug in your NCE cab and run trains … am I to understand each little jack is not its own command station (connected to the track proximal to the jack)? Are all these jacks wired to a single command station somewhere on the layout that is delivering the DCC signal from one central place?
the NCE command station modulates the voltage on the track per the DCC standard to send commands addressed to specific DCC decoders in a locomotive to make the loco move in a particular direction and speed. There can be only one device, the command station that sends DCC commands by controlling track voltage.
An NCE cab plugs into the jack you mentioned which connect the cab to an NCE cab bus which supports a proprietary communication protocol between an NCE cab and command station. An NCE cab primarily communicates keypad button presses used to select the decoder address and specify locomotive direction and speed.
Yes. DCC system manuals tell you that.
Rich
Yes
There could be additional boosters distributed around the layout, with commands transmitted via a separate “booster bus” to the boosters from the command station, but it all goes through the central command station.
Thanks, I’m learning a lot. So on this point:
“From the command station the signal does not have enough current to run a train. The booster “boosts” the signal and outputs it to the rails or any other device that requires DCC power to operate. It does not boost the voltage of the command station’s signal. It increases the amount of available current that can be drawn by decoders or accessories”
Bachmann EZ Command is a 1 AMP command station that you can connect to a layout (and operate a couple of locos), or you can connect it to a booster (and operate more locos). So is the EZ Command classified as a “command station” - one that has just enough power to lightly operate as standalone (without a booster), and because it doesn’t exceed 1 amp, it also fits the spec and has the option of operating with a booster (in the way a command station as laid out in the NMRA spec normally would)?