/members-area/personalblogs/b/blog/posts/mt4-relay---replacement-relay-moduleThe new Cephos C-MT4 series of relay modules replaces the obsolete Axicom MT4 and Siemens V23104 telecomms relays. The Cephos C-MT4 is a pin compatible alternative with an identical footprint and an integral polarity selector switch as the IM relays en-USTelligent Community 12