The number of wires necessary for this connexion is dependant on whether you are using twowire or fourwire voice path - if a twowire voice path, then a total of four wires are required (two voice plus E and M); if a fourwire voice path is used, then a total of six wires are used (four voice plus E and M).
The E and M leads are necessary for fault supervision of each voice channel.
Don't forget to set SQU and TRM values correctly.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.