The MM714 provides pass through for fax signal on its analog line ports.

The MM714 supports up to four analog telephone sets with:

• An impedance range of Rs: 215 to 300 Ohms, Rp: 750 to 1000 Ohms, Cp: 115 to 220 pF

• A ringing frequency range of 20 Hz, 25 Hz, or 50 Hz

• A DC current range of 20 to 60 mA

• A hook flash range of 90 to 1000 ms

The MM714 provides -48 VDC for ports that are set up as direct inward dialing (DID).