Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Can I reverse pins 3 and 4 on the CPE side of the cable that carries LRE traffic?

April 26, 2017cable carries CPE LRE pins reverse Traffic

0

Posted

Can I reverse pins 3 and 4 on the CPE side of the cable that carries LRE traffic?

1 Answer

0

Posted

A. No. Some single-line and multi-line telephones are sensitive to the polarity inversion between pins 3 and 4 of the CPE wall and phone ports. In these cases, make sure you maintain correct polarity throughout your wiring and connections. For more information, see Release Notes for the Cisco 575 LRE CPE.