MAX774IRGEVKIT, MAX774 ISDN, Ring-Tone, Power-Supply Evaluation Kit

MAX774IRGEVKIT, MAX774 ISDN ring-tone power-supply (IRG) Evaluation Kit (EV kit) provides high voltages required for implementing a plain old telephone system (POTS) interface on ISDN modems and line cards. It is a fully assembled and tested board that provides a tightly regulated, -24V output for powering off-hook voice communication and a -70V output for on-hook, ring-tone generation