thanks Christain, you help me alot. thanks On Sun, Nov 18, 2012 at 12:29 PM, Christian Kratzer <[email protected]>wrote:
> Hi, > > > On Sun, 18 Nov 2012, s m wrote: > >> thanks Juergen >> what i've got from your words is: for connecting modem to cisco we should >> reverse send and receive while for connecting cisco to PC it should be >> straight. is it true or i misunderstand what you mean? >> > > exactly the opposite: > > For Cisco to PC you need a rolled cable as both devices classify as DTE > (Data Terminal Equipment). > > For Cisco to Modem you need a straight cable as the modem is a DCE (Date > Communication Equipment). > > The blue console cable is a rolled cable. If you look at the connectors > closely and you will see the colors reversed. > > So just grab a regular patch cable and you should be fine. > > Greetings > Christain > > > this connection is so important for me therefore i want to buy a cable but >> don't know what exactly cable i should buy. please help me to buy a >> correct >> one. >> >> thanks for your attention >> >> On Sat, Nov 17, 2012 at 6:04 PM, Juergen Marenda <[email protected]> >> wrote: >> >> On Sat, Nov 17, 2012 at 02:22:58PM +0330, s m wrote: >>> >>>> hello guys >>>> >>>> i wanna connect a modem to a 2800 router by AUX port. this is my >>>> configuration: >>>> modem InOut >>>> modem autoconfigure discovery >>>> transport input all >>>> stopbits 1 >>>> speed 38400 >>>> flowcontrol hardware >>>> >>>> the speed value changes because "mode autoconfigure discovery" is set. >>>> >>>> i used blue console cable RJ45 to DB9 for connecting AUX port to modem. >>>> >>> >>> use the black cable or the supplied 9-to-25 CON-MODEM-adapter. >>> the light-blue cable is to connect to a PC-AT Serial Port. >>> >>> Or crimp an RJ45 Plug reverse on the router's end of the cable . >>> >>> Or use a NULLmodemcable beetween Modem and DB9 "con" . >>> >>> You should be able to telnet ip-of-your-router 2001 , >>> authenticate at router, and then speak with the modem. >>> >>> If you connect PC with Hyperterm instead of the modem, >>> and this works, then it will not work with the modem, >>> and you need to get/build a fitting cable, see above. >>> >>> >>> [...] >>> >>>> i read when the connection is correct, modem hardware stats should be >>>> CTS >>>> not noCTS. moreover i can not do reverse telnet to modem. >>>> >>> >>> YOur cabling is wrong, both sides SEND and RECIVE Lines are connected >>> together >>> (RS232 i must be shorit-ciruit proof, +-12 V...) >>> >>>> >>>> please let me know how i should fix it and configure my modem by AT >>>> commands. >>>> >>> >>> Hope this helps, >>> >>> Juergen. >>> >>> >>> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ >> >> > -- > Christian Kratzer CK Software GmbH > Email: [email protected] Wildberger Weg 24/2 > Phone: +49 7032 893 997 - 0 D-71126 Gaeufelden > Fax: +49 7032 893 997 - 9 HRB 245288, Amtsgericht Stuttgart > Web: http://www.cksoft.de/ Geschaeftsfuehrer: Christian > Kratzer > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
