DS1 tip/ring sensitive

Dial Tone · February 18th, 2007, 12:37 PM

Do you know if Avaya's DS-1 circuit packs, any, are tip and ring sensitive? RJ-45 to the network. 1Tx tip, 2 Tx ring, and 4 Rx Tip, 5 Rx Ring. or do I have this backwards? or does it matter?

oozenoz · February 19th, 2007, 07:05 AM

By design, voltage is duplexed across both the transmit and receive pairs on a DS1. The terminating points on either end connect to a coil which is center tapped - this reduces the capacitive effects of the pair - so reversing tip and ring on a single pair should not cause a problem for the circuit.
Do you have an issue or is this just a question?

February 18th, 2007, 12:37 PM	#1 (permalink)
Dial Tone Join Date: May 2005 Posts: 4	DS1 tip/ring sensitive Do you know if Avaya's DS-1 circuit packs, any, are tip and ring sensitive? RJ-45 to the network. 1Tx tip, 2 Tx ring, and 4 Rx Tip, 5 Rx Ring. or do I have this backwards? or does it matter?

February 19th, 2007, 07:05 AM	#2 (permalink)
oozenoz PBXtech PLATINUM 300+ posts Join Date: Feb 2006 Posts: 350	Re: DS1 tip/ring sensitive By design, voltage is duplexed across both the transmit and receive pairs on a DS1. The terminating points on either end connect to a coil which is center tapped - this reduces the capacitive effects of the pair - so reversing tip and ring on a single pair should not cause a problem for the circuit. Do you have an issue or is this just a question? __________________ - calvin

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