Pinouts for T1/E1 crossover cable WAS "RE: [Asterisk-Users] what cable to connect a legacy PBX to a TE410P ?"

[Andrew Kohlsmith]

On Monday 24 April 2006 12:13, Kevin P. Fleming wrote:
> Minor point: isn't it safer to only ground the shield on one end?

Yes, you *never* shield both ends.  That can cause ground loops and add to the 
long list of "what the..?" head-scratching problems that telephony has.

As to WHICH end to ground... well that's a subject that holy wars have been 
started over...

-A.