Changes between Initial Version and Version 1 of CoHdrRj

Jun 20, 2013 10:51:18 PM (6 years ago)



  • CoHdrRj

    v1 v1  
     1= CO-HDR-RJ45 CANOpen Adapter = 
     3== Introduction == 
     4'''Purpose:''' converts a CANOpen DS303-1 5 Pin 5.08mm terminal block connector to two DS303-1 RJ45 connectors, provides optional connection to CAN_V+. 
     6Files are [ here for subversion (Eagle PCB files)] and [ here for WordPress (Eagle PCB files)] 
     8I have standardized on RJ45 connectors for my CANOpen equipment.  This adapter makes it easy to connect CANOpen equipment with compatible terminal block headers (such as the Wago 750-337) to RJ45 CANOpen networks.  I provide a connection for CAN_V+ in case it's needed. 
     10== Design Notes == 
     11The various signal lines are connected as follows: 
     12 * CAN_H is connected to J1A (first RJ45 jack), J1B (second RJ45) and P1 (5-pin inverted terminal block plug) 
     13 * CAN_L is connected to J1A, J1B, and P1 
     14 * CAN_GND is connected to J1A, J1B, P1, and TB1 (power input terminal block) 
     15 * CAN_SHIELD is connected to J1A, J1B, and P1 
     16 * J1 reserved pins are connected: J1A pin 4 is connected to J1B pin 4 and J1A pin 5 is connected to J1B pin 5 
     17 * TB1 CAN_V+ is always connected to P1 CAN_V+ 
     18 * TB1 CAN_V+ can be connected to J1A CAN_V+ and J1B CAN_V+ by using jumpers.  
     20== Normal Use == 
     21 * Verify your device has a compatible header and pin-out.  The pin out is below. 
     22   * Apparently there's a slight difference between Wago (used by the Wago 750-337) and Phoenix terminal blocks.  I had to break off one of P1's tabs to get it to fit in the Wago 750-337.  (You can see that in the above picture). 
     29 * Connect J1A and J1B to the rest of the CANOpen network using RJ45 cables 
     30 * If the CANOpen device needs power on CAN_V+ (Wago 750-337's do not), you have many options: 
     31   * Connect CAN_V+ power from TB1 to only this device: both jumpers are removed from JP1 
     32   * Connect CAN_V+ power from TB1 to this device and all devices connected to the left RJ45 jack: only left JP1 jumper is installed 
     33   * Connect CAN_V+ power from TB1 to this device and all devices connected to the right RJ45 jack: only right JP1 jumper is installed 
     34   * Connect CAN_V+ power from TB1 to entire RJ45 network: both JP1 jumpers are installed 
     35   * Break the link between CAN_V+ on the right RJ45 and the left RJ45: both jumpers are removed from JP1 
     36 * So JP1 provides a lot of flexibility in providing multiple CAN_V+ voltages to your network -- but, as always, be careful, since you don't want to provide, say, +24VDC CAN_V+ to a device designed for +12VDC. 
     39== Bill of Material == 
     40||'''Part'''||'''Vendor'''||'''Part Number'''||'''Quantity'''||'''Description'''|| 
     41||'''PCB'''||Your fab house|| ||1||  || 
     42||'''P1'''||Phoenix Contact||IC 2,5/5-G-5,08 P/N 1786433||1||5-pin 5.08mm inverted terminal block header|| 
     43||'''J1'''||TE/AMP||5557560-1||1||Dual RJ45 Jack RA|| 
     44||'''JP1'''||Molex||10‑89‑7042||0->1||Jumper block, 0.1", 2x2|| 
     45||'''TB1'''||Phoenix Contact||MSTBA 2,5/2-G-5,08 P/N 1757242||0->1||Terminal Block Header, 2 pos, 5.08mm|| 
     46|| ||Phoenix Contact||FKC 2,5/2-ST-5,08 P/N 1873058||0->1||Terminal Block Plug|| 
     47|| ||Molex||15-29-1025||0->2||Jumper, 0.1""|| 
     50 * Get the PCB made at your favorite PCB fab.  Some will take Eagle files; almost all take Gerbers.  I do not provide Gerbers because different PCB makers have different standards. 
     51 * If you do not need to provide external CAN_V+, you can skip JP1,TB1, the terminal block plug, and the jumpers. 
     52 * Terminal Block Plug: you can use any terminal block plug that fits into the header.  I used a spring clamp model (1873058). 
     53 * You can also used a fixed terminal block instead of the removable terminal block system I used.  Some 5.08mm fixed screw terminal blocks have compatible PCB footprints. 
     54 * Assembly should be easy - this PCB requires only standard through hole soldering techniques.