What RJ11 Cables Should I Use? Post: 302916724

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Special Forums IP Networking What RJ11 Cables Should I Use? Post 302916724 by mrm5102 on Thursday 11th of September 2014 01:56:57 PM

09-11-2014

Registered User

What RJ11 Cables Should I Use?

Hello All,

I have a project I'm working on which involves a linux PC and a USB (*dialup) Modem in a remote location for telnet'ing to that
PC by phone when the Ethernet connection is down.

I have already purchased the USB modems I need and some dumb phones for line testing... Now I'm trying to figure out
which RJ11 cables I should be using for this. Looking around online I have seen RJ11 cables with 2 and 4 pins/connectors.

The USB Modem's came with a 2 pin RJ11 cable, but the USB Modem itself, if you look inside the RJ11 port on the modem,
it has 4 copper "pins/connectors".

So can anyone recommend what RJ11 cables I should be getting for this? I wasn't sure if I would get any kind of speed or
performance increase if I used the 4 connector one instead of the 2?

I believe my choices are: 6P2C or 6P4C

Any suggestions would be greatly appreciated..!

FYI : And in case it's relevant the USB Modems I purchased are the Zoom 56K External USB Modem (Model 3095). See it
here --> Zoom Telephonics - V.92 56K USB Mini External Modem

Thanks in Advance,
Matt

mrm5102

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LEARN ABOUT CENTOS

ehci

EHCI(4)                                                    BSD Kernel Interfaces Manual                                                    EHCI(4)

NAME

     ehci -- USB Enhanced Host Controller driver

SYNOPSIS

     device ehci

DESCRIPTION

     The ehci driver provides support for the USB Enhanced Host Controller Interface, which is used by USB 2.0 controllers.

     EHCI controllers are peculiar in that they can only handle the USB 2.0 protocol.  This means that they normally have one or more companion
     controllers (i.e., ohci(4) or uhci(4)) handling USB 1.x devices.  Consequently each USB connector is electrically connected to two USB con-
     trollers.  The handling of this is totally automatic, but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same connector
     appear to connect to different USB busses.

SEE ALSO

     ohci(4), uhci(4), usb(4)

HISTORY

     The ehci device driver first appeared in FreeBSD 5.1.

BUGS

     The driver is not finished and is quite buggy.

     There is currently no support for isochronous transfers.

BSD                                                               March 20, 2005                                                               BSD