RJ-48 Polarity
I'm connecting two PBX ISDN interfaces together. The following are the signal definitions for RJ-48:
1 Receive (ring) 2 Receive (tip) 4 Transmit (ring) 5 Transmit (tip)I used trial and error to get transmit and receive properly crossed between the two T1 cards. I'd like to know if there's any reason to be concerned about polarity within a single signal pair. ie 1-4 vs
1-5, etc.If polarity does not matter in this application, does it ever matter in telecom applications?
read more and respond »Posted 5 years ago by Bob Simon in Telecom Technical
