From: Peter Whittle (peter@xxxxxxxxxxxxxxxxxxxxxxxxxxx)
Date: Sun Apr 08 2001 - 16:04:44 GMT-3
Tariq,
Just a minor correction. If it is a DB15 on the end of a serial cable
then it is most likely to be an X.21 sync serial i/f. However, if it is
on a router particularly a 25xx then a DB15 is most likely to be an
ethernet AUI port.
Hope that helps.
Peter
In message <3AD09680.780D1E39@uswest.net>, Andres Zeller
<azeller@uswest.net> writes
>Tariq,
>
>Whatever you do don't listen to Greg about not asking questions. Everything el
se
>he says is right on. Your questions as well as your answers are invaluable to
>those of us with less imagination. After all, Greg, isn't the idea of the list
>to
>assist in answering questions? :-)
>
>Otherwise I think you will find what you are looking for here.
>
>http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/marcabl
.h
>tm
>
>Best regards,
>Andres Zeller
>
>Greg Ferro wrote:
>
>> Tariq, gosh you ask a lot of questions, one day you are going to think
>> things out before you email the group on every little thing. A hint for you
>> - more thinking, less talking.
>>
>> Both of your cables are DTE, you can't set clock on a DTE interface. The
>> standards specifically say that clock must be provided by the DCE side. On
>> many Cisco routers you can actually enter a clock rate even if the
>> interface is DTE. But it will "disappear" when you show the config. (useful
>> troubleshooting tip!!!! fast way to work out which end is DCE )
>>
>> The Cisco router cable has 60 pins in it. For different interface types,
>> different pins are used. But particularly there are certain pins that
>> loopback to other pins. This determines the type of cable to the module and
>> whether it is DCE or DTE. So no magic jumper box is ever going to change thi
s.
>>
>> For Cisco cables, any cable that is male will be DTE, any cable that is
>> female will be DCE. This is a CISCO rule.
>>
>> Oh yeah, DB15 is always X21 interface for Cisco. Another Cisco rule.
>>
>> At 01:57 AM 7/04/2001, you wrote:
>> >I have never had any problem with clockrate on 4000.. I think you are
>> >wrong.. ;-)
>> >
>> >----- Original Message -----
>> >From: "Daniel C. Young" <danyoung99@mediaone.net>
>> >To: "'Tariq Sharif'" <tariq_sharif@btinternet.com>; <adiment@uswest.com>;
>> ><ccielab@groupstudy.com>
>> >Sent: Friday, April 06, 2001 1:44 PM
>> >Subject: RE: Cisco 4500 15 pin Serial Interface
>> >
>> >
>> > > If you connect it, instead, to a 2500, then you can configure clock rate
>> >on
>> > > the 2500. The 4500, for some reason, just won't seem to take the clock
>> >rate
>> > > command. This has been my experience.
>> > >
>> > > Please correct me if you know otherwise.
>> > >
>> > > Daniel Young
>> > > Sr. Network Engineer
>> > > Internet Data Center
>> > > SBC Service Inc. - ITO
>> > >
>> > > (949) 221-1928 Office
>> > > (714) 350-8945 Cell
>> > > ICQ# 109846891
>> > >
>> > >
>> > > -----Original Message-----
>> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>> > > Tariq Sharif
>> > > Sent: Friday, March 23, 2001 6:57 AM
>> > > To: adiment@uswest.com; ccielab@groupstudy.com
>> > > Subject: RE: Cisco 4500 15 pin Serial Interface
>> > >
>> > >
>> > > Both ends of the cable are reported to be DTEs. I have a # of DCE to DTE
>> > > cables but they are all DB60 (both ends). I've got 2 cables that are DB1
5
>> >to
>> > > DB 60 but both ends are DTE to DTE. If I buy a connector box (cheap
>> >options)
>> > > I need to cross some pins.
>> > >
>> > > Does anyone know the pins that need to be crossed?
>> > >
>> > > Many thanks & regards.
>> > >
>> > > Tariq Sharif
>> > >
>> > >
>> > > -----Original Message-----
>> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>> > > adiment@uswest.com
>> > > Sent: 15 March 2001 17:19
>> > > To: ccielab@groupstudy.com
>> > > Subject: RE: Cisco 4500 15 pin Serial Interface
>> > >
>> > >
>> > >
>> > > Do a "show controller" for the DB60 serial interface and make sure it's
a
>> > > DCE cable.
>> > >
>> > > -----Original Message-----
>> > > From: Tariq Sharif [mailto:tariq_sharif@btinternet.com]
>> > > Sent: Thursday, March 15, 2001 11:13 AM
>> > > To: Ccielab@Groupstudy. Com
>> > > Subject: Cisco 4500 15 pin Serial Interface
>> > >
>> > >
>> > > Has anyone used Cisco 4500 15 pin Serial Interface. I'm connecting it to
>> > > another 4500 which has DB60 serial connection. The cable shows 15 pin to
>> >be
>> > > DTE but clockate command at DB60 doesn't appear in config. Any ideas?
>> > >
>> > > Many thanks & regards.
>> > >
>> > > Tariq Sharif
>> > > LAB SWAP Message board on groupstudy.com.
>> Regards
>>
>> Greg Ferro | |
>> Senior Network Engineer, CCIE #6920, CCNP ||| |||
>> NetStar Australia Pty Ltd. .|||||. .|||||.
>> 9 Mayneview Street, Milton, 4064 .:|||||||||:.:|||||||||:.
>> GPO Box 166, Brisbane, 4001 C i s c o S y s t e m s
>> Ph: +61 7 3858 3858; Fax: +61 7 3858 3838 Certified Gold Partner
>>
>> "Enthusiam and desire is good, knowledge and experience is better"
-- Peter Whittle
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