Innovative Model Railroad Control System

User Tools

Site Tools

Trace:
gca94-en

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision		Previous revision
gca94-en [2018/11/12 08:56] – external edit 127.0.0.1gca94-en [2023/01/21 16:15] (current) – [Description] phg
Line 22: Line 22:
 [[http://www.digitalzentrale.de]] sells this board in two or four ports.\\ [[http://www.digitalzentrale.de]] sells this board in two or four ports.\\
 This superb design of Helmut Schäfer is permitted to be used for the GCA94.\\ This superb design of Helmut Schäfer is permitted to be used for the GCA94.\\
-GCA94 is made to accept 8 inputs, and can be used like GCA93, straight to GCA50, CAN-GC2 or GCA_PI02\\ +GCA94 is made to accept 8 inputs, and can be used like GCA93, straight to GCA50, CAN-GC2, GCA_PI02 and WIO.\\ 
-No measureable power loss is the result, and there is no need to protect each input with a PTC Fuse, like on GCA93.\\+No measureable power loss is the result, and there is no need to protect each input with a multifuse, like on GCA93.\\
 The unit is functional compatible with GCA93, also each input has its own indicator led.\\ The unit is functional compatible with GCA93, also each input has its own indicator led.\\
 One of the two wires to the rails is feeded through any of the coils, which will mostly be sufficient for any locomotive or illuminated waggons\\ One of the two wires to the rails is feeded through any of the coils, which will mostly be sufficient for any locomotive or illuminated waggons\\
 For more sensitivity, a second or third loop through the coil is possible, which could be necessary when you like to detect also\\ For more sensitivity, a second or third loop through the coil is possible, which could be necessary when you like to detect also\\
 10K resistors, mounted between the two wheels of a waggon.\\ 10K resistors, mounted between the two wheels of a waggon.\\
-One other way to increase the sensitifity is to feed both rail wires through the coil, **but in opposite directions**.\\+One other and better way to increase the sensitifity is to feed both rail wires through the coil, **but in opposite directions**.\\ 
 +**Note:** 
 +This unit is strictly made for ac, because it uses a current transformer.\\ 
 +So any digital system (which is also ac!) AND the good old analog ac Märklin will work.\\ 
 +But using it in an analog dc system, including all scales, will most certainly not function at all.\\ 
 + 
  
 ===== The board, professionally made. ===== ===== The board, professionally made. =====
Line 35: Line 41:
  
 ===== The hardware ===== ===== The hardware =====
-|  {{:gca:gca94_sch.pdf|The schematics}}  | +|  {{:gca:gca94v2_sch.pdf|The schematics}}  | 
-|  {{:gca:gca94_pcb.pdf|Printed circuit with parts positions}}  |+|  {{:gca:gca94v2_pcb.pdf|Printed circuit with parts positions}}  |
 |  {{:gca:gca94_partslist.pdf|The list of parts}}  | |  {{:gca:gca94_partslist.pdf|The list of parts}}  |
 \\  \\ 
gca94-en.1542009373.txt.gz · Last modified: 2018/11/12 08:56 by 127.0.0.1