cable limit

[Bill Campbell]

On Mon, Oct 15, 2007, Tony Alfrey wrote:
>Jay Nugent wrote:
>>Greetings,
>>
>>On Mon, 15 Oct 2007, Tony Alfrey wrote:
>>
>>>Vu Pham wrote:
>>>>I need to connect two devices which are about 500 or more feet apart.
>>>>Wireless is not possible in this environment. So I think I am going to
>>>>use the RJ45 cable with T1 modules at two ends. I tried this with short
>>>>distance for testing the T1 ( with one end provides the sync clock ) but
>>>>I don't know how long I can extend the cable in this case ?
>>>>
>>>>Any other option I can try ?
>>>>
>>>>Thanks,
>>>>
>>>>Vu 
>>>I found this; it doesn't look good.
>>>http://www.duxcw.com/faq/network/cablng.htm
>>
>>   Your reference above is for 100-BaseT.  Vu is using a pair of T1 DSU's
>>and a cat5 cable strung between them.
>>
>>   Vu, T1 on cat3 (standard telco cable) is good for several thousands of
>>feet.  500 feet will be no problem at all.
>
>Thanks.  I didn't see cat5 cable, I just saw the RJ45 connectors.  I see 
>references for over 500 feet for twisted-pair shielded cables for T1.

What kind of devices are we talking about here?  T1 speeds aren't that
high.  It's one thing to to extend gigabit ethernet, and another to handle
9,600 baud serial.

Bill
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