Hello,
I have a CCR1009, and want to connect to the console port using a Cisco console cable which has male RJ-45 connector on one end. The other end has a USB connector for connection to my laptop.
I have a female DB-9 to female RJ45 adapter that I need to wire. Given that the Cisco console cable is rolled aka null-modem, am I correct in thinking that for the DB-9 to RJ45 I just go pin to pin.
The cable you linked won’t do. It’s essentially only converting from proper USB connector to RJ45 connector. But doesn’t do anything about protocol conversion and if you plug the USB end into a computer, then RJ45 will still “talk” USB.
The problem with RJ45 console cables is that they largely abuse RJ45 socket for anything some engineer comes up with. It all started with using it for serial (RS232) connections where the other end of cable had a DB9 connector attached.
But I don’t see how you can use the Cisco cable you linked with DB9 to RJ45 conversion you’re talking about later on. You can not construct a “double conversion” cable (i.e. DB9 - RJ45 and RJ45 - USB) and use it to connect to CCR1009, MT uses proper RS232 on their DB9 connectors. So if you want to connect that to USB port of your computer, you need a proper RS232 to USB converter, like this one (it’s got active circuit inside DB9 connector, it’s not simple wiring).
I saw that page and it confused me. The CCR1009 has a male DB-9 connector for the console connect.
I’m thinking that I need to use the first chart listed in the “Serial Console Configuration”. And for column 4, “Side (DB9f)”, should be the pinout that matches my cable.
The TX is on wire 3 of the RJ-45 and goes to pin 2 (RX) of the DB-9 (female) connector
The RX is on wire 6 of the RJ-45 and goes to pin 3 (TX) of the DB-9 (female) connector
The Ground is on wires 4 and 5 of the RJ-45 and go both to pin 5 (Ground) of the DB-9 (female) connector