Changes between Initial Version and Version 1 of CableDbrj


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Timestamp:
Jun 20, 2013 5:57:39 PM (6 years ago)
Author:
TonyB
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  • CableDbrj

    v1 v1  
     1= Connecting CANOpen Equipment with DB9M Connectors to a RJ45 Network = 
     2 
     3== DB9 Conversion Strategies == 
     4 
     5For normal environments, [http://trac.factoryswblog.org/wiki/CableRj I like using RJ45 cables to connect my CANOpen equipment].  If all CANOpen equipment had dual RJ45 jacks, connecting the devices together would be easy.  Unfortunately, many devices aren't available with dual RJ45's.  For example, older AMC servo drives use a single DB9M, the IMS MDrives use a single DB9M (Plus, Plus2) or M12 (Plus2-65), and most CAN interfaces use a single DB9M. 
     6 
     7My approach is to convert all the other devices to use dual RJ45 jacks; for DB9M-equipped devices, that means using a DB9M/RJ45 Modular Adapter connected to a RJ duplex (tee) adapter.  The advantage is now all the equipment has the same configuration: dual RJ45 jacks.  So it's easy to put any device anywhere in the network.  The first and last devices have RJ45 terminators.   
     8 
     9If you have only one or two devices with DB9M connectors, then you don't need to use the RJ45 duplex adapters.  You can use the DB9/RJ45 Modular Adapter with a DB9 pass through terminator such as [http://stores.can-connection.com/-strse-77/CAN-Terminator--dsh--pass/Detail.bok this Ixxat model], which looks nice but is a little pricey at $25.  For example, a system with a DB9 CAN interface, three Copley Accelnet Panel drives, and a IMS MDrive 17 Plus could be connected like this:  DB9 CAN inteface DB9 is connected to the DB9 pass through terminator connected to a RJ45 modular adapter connected to RJ45 patch cable connected to Copley 1 connected to patch cable connected to Copley 2 connected to patch cable connected to Copley 3 connected to patch cable connected to RJ45/DB9 adapter connected to DB9 pass through terminator connected to the MDrive. 
     10 
     11== Using a DB9/RJ45 Modular Adapter == 
     12 
     13The simplest approach is to use a DB9 to Modular converter.  The table below shows the required connections for the two adapters I've tried, a [http://www.mouser.com/Search/ProductDetail.aspx?qs=U4pz39agNJBc0gv518FI6A%3d%3d Norcomp RJADK09S7080831 from Mouser] and a Pan Pacific ADM-9F8-GR from Fry's Electronics. 
     14 
     15The Pan Pacific looks prettier, but I had to remove one of the thumbscrews because it interfered with the RJ45 duplex adapter. 
     16 
     17'''Connections using Norcomp RJADK09S7080831 or Pan Pacific ADM-9F8 Modular Adapter -- Complete''' 
     18||'''DB9F Pin'''||'''CAN Signal'''||'''RJ45 Pin'''||'''Wire Color'''||'''CAN Signal'''|| 
     19||1||Reserved||NC||      ||Reserved|| 
     20||2||CAN_L   ||2 ||Orange||CAN_L   || 
     21||3||CAN_GND ||3 ||Black ||CAN_GND || 
     22||4||Reserved||NC||      ||Reserved|| 
     23||5||CAN_SHLD||6 ||Yellow||CAN_SHLD|| 
     24||6||GND     ||7 ||Brown ||GND     || 
     25||7||CAN_H   ||1 ||Blue  ||CAN_H   || 
     26||8||Reserved||NC||      ||Reserved|| 
     27||9||CAN_V+  ||8 ||White ||CAN_V+  || 
     28|| ||        ||4 ||Red   ||Reserved|| 
     29|| ||        ||5 ||Green ||Reserved|| 
     30 
     31'''Easy Wiring Table  for Norcomp RJADK09S7080831 or Pan Pacific ADM-9F8 Modular Adapter''' 
     32||'''Wire Color'''||'''DB9F Pin'''||'''CAN Signal'''|| 
     33||Orange||2||CAN_L   || 
     34||Black||3||CAN_GND || 
     35||Yellow||5||CAN_SHLD|| 
     36||Brown||6||GND     || 
     37||Blue||7||CAN_H   || 
     38||White||9||CAN_V+  || 
     39||Red||-||N/C|| 
     40||Green||-||N/C|| 
     41 
     42=== Procedure === 
     43 1. If the modular adapter isn't a Norcomp RJADK09S7080831 or Pan Pacific ADM-9F8, then you need to determine which wires are connected to which pins. 
     44   1. With the contacts on the bottom, RJ45 pin 1 is the contact on the far right. 
     45 1. '''Carefully''' insert the crimped pins into the appropriate hole in the DB9F connector until they snap into place and won't come out.  A small screw driver or insertion tool can help. 
     46   1. Be careful - so far in my experience, removing DB crimp pins is a huge pain.  If you don't have the proper tools, it's just about impossible.  Even with the correct crimp pin removal tool, it is not easy -- don't expect your removal tool to last very long. 
     47 1. Test the adapter in your CANOpen network. 
     48 1. Once you've verifed it works, chop off the extra wires. 
     49 1. Snap the DB9F connector into the backshell, pushing the the wires into the backshell. 
     50 1. Test again 
     51 
     52[[Image(http://factoryswblog.org/wp-content/uploads/2008/db9rj45_1.jpg)]][[BR]] 
     53Pan Pacific DB9F to RJ45 Modular Adapter - configured for CANOpen[[BR]] 
     54 
     55[[Image(http://factoryswblog.org/wp-content/uploads/2008/db9rj45_2.jpg)]][[BR]] 
     56DB9/RJ45 Adapter with Modular Tee[[BR]] 
     57For production, I would remove the release tab that you can see sticking out at the top.