300 BPS DCM-6 Modem  (260-1393)       Features         Faxback Doc. # 5697

By adding the Direct-Connect Modem DCM-6 to your computer system, you can
access national and international information networks and data bases, or 
you can exchange information with another computer user over the phone 
lines.

MODEM is an acronym that stands for Modulator/Demodulator. A modem trans-
forms a typical two-level (binary) computer signal into a form suitable for
transmission over the telephone network. With the frequency sequence of tone
signals, allowing you to originate and answer calls and communicate.

You can use you Modem to send or receive programs and to contact information
services. Data transmission of the DCM-6 is at 300 bits per second (bps).

Your Modem can be used with any Tandy computer or data terminal that has
RS-232C interface capabilities. With optional acoustic cups (26-3805), you 
can use your Modem virtually anywhere that AC power is available--no need 
to connect semi-permanently to the phone line.

The DCM-6 is a self-contained, Frequency Shift Keying (FSK) telephone
interface. This FSK method of frequency modulation for transmitting digital
signals is the same as that method used in low-speed modems. When the DCM-6 
is connected to your telephone wall jack, your phone can only be used for
conversation when the CONNECT switch is off. Be sure this switch is set to 
OFF when you are not using the Modem.

Mode Switch--Selects either ORIGINATE or ANSWER mode.

Carrier Detect Indicator--Lights when a carrier tone is detected. A carrier
tone is the sound you hear when you pick up the receiver while the Modem is
communicating with another modem.

Connect Switch--Connects the Modem to the telephone line. Push this switch 
to turn power on.

Power On Indicator--Lights when the Modem's power is on and connected to the
telephone line.

RS-232C Connector--Standard DB-25 jack for connection to the RS-232C inter-
face of most computers.

Acoustic Coupler Jack--Accepts the DIN connector of the acoustic cups
(26-3805). When connected the phone jack is disabled.

Power Jack--Connects the Modem to the AC adapter.

Phone Jack--Connects the  telephone's modular plug to this connector.

Modem To Telephone Line Connector--Insert the Modem's modular plug (RJ11) 
into the telephone wall jack.

(dtc-08/04/93)