Wiring DB25 Cable ends
Posted on 2008-06-19
A client has several CNC machining tools which connect to the network via a female DB25 port on the machine. Job configurations are sent to the machines from the network.
Several machines were moved, requiring longer cable to be run. The original cables had been constructed with DB25 male ends where the pins were soldered with the appropriate wiring scheme for each machine, then the ends simply screwed together. So far, I cannot find a source for this type of connection. I am trying to figure out an alternative solution, but in the end I need DB25 male at the machine, and the pin outs need to be custom wired, not straight through.
Although there are 25 pins in the connection, only 8 pins are used: Pins 3 & 4 move data and are crossed from one end to the other, pin 7 is common, pins 4 & 5 are jumpered, and pins 6, 8 & 20 are jumpered.
I have found some DB25 to RJ45 modular adapters which allow pin configuration, and I may be able to use these, but I have only found them in the female version, requiring another adapter. But it might do the job.
Does anyone know where to get the DB25 ends where the pin outs can be soldered or otherwise configured? Or does anyone have any better ideas?
Thanks in advance!