On Mon, 25 Oct 2004, Cirelle Enterprises wrote:
----- Original Message ----- From: "Steve Underwood" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[EMAIL PROTECTED]> Sent: Monday, October 25, 2004 9:21 AM Subject: Re: [Asterisk-Users] Digium Wildcard T1 Compatibility | > | >for what it's worth, we were told to use RJ48C (Std Ethernet Cable) | > | RJ48C is *not* standard ethernet cable. The twisted pairs are grouped | differently. Ethernet cables work OK for T1s if they are only 2 or 3 | metres long. Long ethernet cables give high error rates when used for T1s.
According to the t1 techs I've been dealing with, a standard ethernet cable will work (we have been using a 3 foot segment approx 1m) In fact the only configuration that lights all lights is a standard ether cable. T1 cross-over doesn't create a proper link and lights on the t100p and smart jack indicate a failed condition.
The pairs in an ethernet cable are the same pairs as a t1 cable, they are paired 1&2, 3&6, 4&5, 7&8. T1 uses 1&2 and 4&5, ethernet uses 1&2, 3&6. If you have a good cable it should work fine. Going too long of a distance from your t1 mounting may required a higher LBO on each end to compensate for the additional copper. Also make sure you are using 24 awg wire, not the 26 or 28 awg in most patch cables.
dave
-- Dave Weis "I believe there are more instances of the abridgment [EMAIL PROTECTED] of the freedom of the people by gradual and silent encroachments of those in power than by violent and sudden usurpations."- James Madison _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
