Specifications

MM714 Analog Media Module
Issue 6 February 2007 295
Analog line interface requirements
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)
Companding
MM714 allows for A- or Mu-law selection at installation. This is a software-selectable capability
that applies to all ports on the MM714.