Due to technical improvements, this board is replaced by MGV50V1-2.
The MGV50 is based on the LocoIO design from John Jabour and can be used for all kinds or I/O depending on the drivers or sensors.
It differs from the LocoIO in size and features other connectors for more robustness and flexibility, which was also a reason to do our own development work.
Without any extra satellite modules, the I/O is 5V and only to be used with low current LED's, reed switches, and opto-isolated sensors.
By using standard D-Type connectors, that eliminated the possibility of making fault connections. It also allowed us to have our own choice of power supply for the system.
MGV50 is full compatible with Loconet, except for power supply. Standard Loconet units are supplied by Railsync output, MGV50 requires DC supply.
Each of the 16 lines on MGV50 can be used as either an input or an output. So switches (to start/stop all kinds of lights , leds, motors relays etc anywhere else in the LocoNet), pushbuttons (i.e. for turnouts) and LEDs can be connected directly. The configuration can be done inside the Rocrail program.
A wide choice of different interfaces are available (see The MGV Family ) to connect servo_motors, InfraRed gates, current-detectors, turnout coils (single and double, etc.
For further info about programming MGV50, please refer to http://wiki.rocrail.net/doku.php?id=lnsv-en
|schematics and pcb-design|
|pcb and parts positions|
|List of materials|
You can get the parts from this distributor:
Please check the list carefully, it is not updated to the latest versions.
|JP 1||report input states at startup||No report at startup|
The best suitable cable for this connection is cat5 Ethernet cable.
|DB9 Pin||LocoNet function||Ethernet cable colour|
|1||GND||blue + blue/white|
In case Railsync is to be used (i.e. for Lissy, FredI, MGV108 or Loconet Booster) a link must be made on the printed circuit between points 4 of both d-connectors.
To avoid any problems, connect the wires according this list.
Changing wire colours could cause errors.
Standard full wired male to female 'extension' Rs232 cables are allowed, but up to a certain limit.
It is never experienced how many can be used, but a few do not disturb the communication.
This type of cable is by far not able to conduct the full 3 Amp of the MGV85!
|LocoIO port||Pin #|
|LocoIO port||Pin #|
|2||LocoNet activity||red||OFF||No LocoNet activity|
Unfortunately, the foot print of U1 has disappeared in the production process.
The position of the mark on the chip should be opposite to U2, so pointing to R7.
Be sure to mount the female and male d-connectors in the right position.
Male connector is with pins and mounted left, where 'male' is indicated.