300 BPS DCM-3 Modem (260-1178) Features Faxback Doc. # 5985 The DCM-3 is a self-contained, FSK (Frequency Shift Keying) telephone inter face. The DCM-3 offers the following features: (1) MODE SWITCH. Selects either ORIGINATE or ANSWER mode. (2) CARRIER DETECT INDICATOR. Lights when a carrier tone is detected. (3) CONNECT SWITCH. Connects the modem to the telephone line. Push this switch to turn power on. (4) POWER ON INDICATOR. Lights when the modem's power is on and connected to telephone line. (css 08/04/93)