The MM717 high density DCP media module front panel has a 25-pair amphenol connector supporting 24 Digital Communications Protocol (DCP) ports. To use the MM717 media module, connect an amphenol cable to the port and to either a breakout box or a punch down block containing RJ-45 or RJ-11 jacks, as needed. You can attach up to 24 two-wire DCP telephones to these jacks. The MM717 does not support four-wire DCP telephones.