how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. Please help me out on this.
Regards, Gopinath M Signal Networks Pvt. Ltd.
Smile... it increases your face value!
gopinath wrote:
how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. Please help me out on this.
huh? You'll have to be a WHOLE lot more explicit as to what you want to do here.
on x86 hardware, RJ45 ports are almost always ethernet, serial ports generally use DB9 connectors.
On some other servers like Sun Sparc and IBM Power systems, RJ45 ports are sometimes used for serial console connections, but those ports are wired up to UARTs (asynchronous communication adapters) rather than ethernet network interface adapters.
On Thu, 2008-04-17 at 22:35 -0700, John R Pierce wrote:
gopinath wrote:
how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. Please help me out on this.
huh? You'll have to be a WHOLE lot more explicit as to what you want to do here.
on x86 hardware, RJ45 ports are almost always ethernet, serial ports generally use DB9 connectors.
On some other servers like Sun Sparc and IBM Power systems, RJ45 ports are sometimes used for serial console connections, but those ports are wired up to UARTs (asynchronous communication adapters) rather than ethernet network interface adapter
Attachment Unit Interface? (AUI) RJ46 to Serial DB9 or RJ45 to LPT ?
CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Thu, 2008-04-17 at 23:10 -0700, John R Pierce wrote:
John wrote:
Attachment Unit Interface? (AUI) RJ46 to Serial DB9 or RJ45 to LPT ?
AUI connectors were DB15, and also aren't 'serial ports', they are ethernet without the PHY layer transcievers.
I thought it was a DB9. I have not seen one in years. IIRC I used them for printer connections.
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On 4/18/2008, "John" jses27@gmail.com wrote:
On Thu, 2008-04-17 at 23:10 -0700, John R Pierce wrote:
John wrote:
Attachment Unit Interface? (AUI) RJ46 to Serial DB9 or RJ45 to LPT ?
AUI connectors were DB15, and also aren't 'serial ports', they are ethernet without the PHY layer transcievers.
I thought it was a DB9. I have not seen one in years. IIRC I used them for printer connections.
http://en.wikipedia.org/wiki/Attachment_Unit_Interface
-- Cheers, Morten :wq
On Fri, 2008-04-18 at 11:54 +0200, Morten Nilsen wrote:
On 4/18/2008, "John" jses27@gmail.com wrote:
On Thu, 2008-04-17 at 23:10 -0700, John R Pierce wrote:
John wrote:
Attachment Unit Interface? (AUI) RJ46 to Serial DB9 or RJ45 to LPT ?
AUI connectors were DB15, and also aren't 'serial ports', they are ethernet without the PHY layer transcievers.
I thought it was a DB9. I have not seen one in years. IIRC I used them for printer connections.
Thanks for the linky Mort. That's what they looked like way back when.
-- Cheers, Morten :wq _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Fri, Apr 18, 2008 at 12:18 AM, gopinath gopinath@signal-networks.com wrote:
how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. Please help me out on this.
Are you perhaps looking for a serial over ethernet device such as the ones made by Moxa (www.moxa.com)? I'm sure there are other makers of such devices, but this is what I've used. We buy up old versions of DE-303, Nport 5610, etc. on ebay for about $100 each. Moxa provides linux drivers that work great in CentOS. So, CentOS sees a /dev/ttyr00 port and you plug your serial device into the Moxa and you're good to go. A great solution for virtualization because you are not using a hardware serial port on your server. The only trick is getting the right pin-out between your serial device and the Moxa (which uses RJ-45 jacks), but Moxa has decent documentation.
On Fri, 18 Apr 2008, Jeff Larsen wrote:
On Fri, Apr 18, 2008 at 12:18 AM, gopinath gopinath@signal-networks.com wrote:
how to simulate a RJ 45 port to act as serial port any option in Centos 5.1. Please help me out on this.
Are you perhaps looking for a serial over ethernet device such as the ones made by Moxa (www.moxa.com)? I'm sure there are other makers of such devices, [....]
Digi -- www.digi.com -- also makes this sort of thing.
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Paul Heinlein