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The TM44 is a new module for controlling the trains on your track and reporting back the positions of your trains. The TM44 is part of the "Dinamo Plug and Play" concept, but can also be used in an existing Dinamo system if required.
The TM44 offers:
All connections on the TM44 consist of connectors with screw connections or "clip" terminals. This means that you do not have to solder to connect the TM44.
The control of blocks and the train detection is 100% electrically compatible with the TM-H / CD16 combination. Both modules can therefore be used interchangeably.
The TM44 is only delivered assembled. The large amount of smd components on it makes it almost impossible for the hobbyist to build the module himself.
The TM44 provides outputs for controlling 4 blocks individually and independently. The control of a block can be analog or digital. The switchover between analogue and digital is done Dinamic under the control of the RM-U module , so that your analogue and digital equipment can actually mix on your track.
Each block output of the TM44 is split into 4 sections for position detection of trains by means of current detection, so that accurate positioning of trains can be achieved in all cases. In contrast to many other occupancy detectors, the current detection of the TM44 is completely symmetrical. That is, the same electronics are included in the line of both rails for detection to take place. This increases the reliability and accuracy of detection on the block transitions during turning loops.
The analogue trains are controlled via pulse width modulation . This method of steering ensures good driving behavior of your equipment, provided that it is technically reasonable. With pulse width control, you can easily drive at creep speed under that condition. You can of course drive both 'forwards' and 'backwards'. The 63 speed steps per driving direction ensure that equipment with different characteristics can be controlled in such a way that natural driving behavior is always obtained.
The TM44 provides (if desired) the permanent lighting of rolling stock. The lighting is done with an alternating voltage of approximately 18 kHz and the level is adjustable in 16 steps. The permanent lighting can be switched on and off per block (of course also Dinamic again). When controlling that permanent lighting, even the lighting of your locs can be switched directionally. The latter requires a simple auxiliary switch in your locomotive.
With digital control, the TM44 provides the digital power for each block and the DCC packages for the trains. The DCC packets are generated separately per block and only for the train that is in that block. The advantage of such a solution is that this method is extremely 'scalable'. Up to 10 DCC packets can be generated per block, sufficient for multiple locs (multi-traction), steering positions and extended bells and whistles. The management of the DCC information about the different blocks and TM44 controllers is handled by the RM-U .
The TM44 is short-circuit protected. As soon as the current exceeds 2A, the controller switches off the voltage (individually per block) within a few microseconds and on again within 10 milliseconds as soon as the overload has been removed. Any overloading is signaled to the controlling computer.
The TM44 requires only a single supply of 8..24V DC. The supply voltage offered is the voltage that will be placed on the rails for the trains. As a rule, a voltage of 15.18V is a good choice.
The communication between RM-U and TM44s takes place via a serial (network) connection based on RS485. This allows you to bridge large distances (up to 1200 meters), so that you can set up the TM44 modules decentrally (eg under your railroad track), close to the blocks that the module controls. That saves a lot of cabling. With the network connection you have the choice of making your own connection cable or using standard RJ45 connection cables.
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