Anton Yurchenko's generous response was: >It will give you a version and other stuff on boot-up, apart from making >sure that you do not have serial ports disabled in BIOS( that happens) I tried a different computer whose BIOS had both serial ports enabled, but I had no success. I tried a second Catalyst 1900, but again no success. I tried /dev/ttyS[0-3]. >I`d still blame the cable. Did you just cut of a jack off an existing >rj-45 cable? Because the pin-out on the cisco console cable is not the >same as with EIA/TIA 568a or 568b standards. I suggest you check it. If >you have a ohmmeter/voltmeter try to check each pin. I did this kind of >cable myself, and it worked. Though I didn`t use instructions from the >hardwarebook.net. Check the cisco site it has a pin-out from db9 to rj-45 >connector. I did a continuity check of every wire in the cable from the DB9 to the RJ-45 end and also checked for all possible unwanted shorts. The cable wires are connected to the proper pins at each end and no shorts were detected. The hardwarebook.net cable diagram is equivalent to the one in the Cisco Catalyst 1900 manual. Is minicom the best GNU/Linux program to use to connect to the serial console of a Catalyst 1900? Is there a special sequence that needs to be followed? Sincerely, Ken Fuchs <kfuchs at winternet.com> ---------------------------------------------------------------------- >Ken Fuchs wrote: >>I built a DB9 to RJ-45 cable by cutting a DB9 cable and RJ-45 cable in >>half and soldering the appropriate ends together as defined here: >> >>http://www.hardwarebook.net/cable/serial/cuscoconsole9.html >> >>It is based on: >> >>http://www.cisco.com/univercd/cc/td/doc/product/lan/28201900/1928v8x/19icg8x/19icinst.htm >> >>The cable I built is identical to the cable described in this Cisco >>manual >>I can't seem to establish a serial connection between my Linux PC serial >>port and the Catalyst 1900. I'm using minicom. I've tried using >>/dev/ttyS0, /dev/ttyS1, /dev/ttyS2, and /dev/ttyS3 to no avail. I'm not >>even sure the serial ports on this machine work, since I've never tried >>to use them before. (I have an internal modem at /dev/ttyS4 that worked >>a few years ago, but is now broken.) I've set the port to 9600, 8 bits, >>no parity, 1 stop bit, and no flow control just as specified by the 1900 >>manual. _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list