300 BPS DCM-6 Modem  (260-1393)     Installation       Faxback Doc. # 5696

Connecting to a Computer:

1. Connect one end of the appropriate cable to the RS-232C connector on the
   DCM-6.

2. Connect the other end of the cable to the computer's RS-232C interface
   connector.

Connecting to a Telephone:

Important Notes:

Your DCM-6 has been designed and constructed to conform to federal 
regulations and can be connected to the phone line as described in this 
manual.

Please note that each product connected to the telephone line places a 
certain load on the line. We designate this as the unit's "Ringer Equivalence 
Number."

When using more that on product on the line, total all the ringer equivalence
numbers. If they total more than 5, your phone may not ring. In rural areas 
a total of 3 may impair ringer operation. To be sure, check with your local
telephone company.

The registration number as well as ringer equivalence number, are located on
the bottom of the unit.

1. The DCM-6 must not be connected to:

   * Coin-operated phones
   * Party-line phones

2. It is very unlikely...but if your DCM-6 causes problems on the phone line,
   the telephone company has the right to temporarily discontinue your
   service. If this happens, the telephone company will notify you and give
   you a chance to have the problem corrected. Also, the telephone company 
   has the right to make changes in their lines and/or equipment. If these 
   changes affect your DCM-6 or require changes in its connection, the phone 
   company will notify you in writing so you can take the necessary steps to 
   ensure uninterrupted service.

   * These notes do not apply if you connect your Modem via the optional
     acoustic cups. (26-3805).

How you connect the DCM-6 to a telephone depends on how your telephone is
connected to the wall:

1. If your telephone has the modular wall connection, attach the DCM-6 as
   shown in figure 3.

If you will be using your DCM-6 outside the USA, you may need a modular to
modular cable (279-374) and a duplex modular jack (279-357).

2. If your telephone has the older style, four-prong connection, use an
   adapter (279-360) to connect your DCM-6 as shown below.

3. If your telephone is wired directly to the wall, use a quick-connect jack
   (279-355), or contact your telephone company about updating the wiring to
   the modular system.

Note: The telephone company is authorized to charge you for any work that 
they do to install such jacks. They might ask you for the U.S.O.C. number 
for the plug connection. This number is RJ-11C.

   4. Or, use the optional acoustic cups (see next section) to make the 
      telephone connection.

Connecting Acoustic Cups:

By using the optional acoustic cups (26-3805) with your DCM-6, you can avoid
the more complex types of telephone connections. Just connect the DIN
connector of thee acoustic cups to the acoustic cups to the acoustic coupler
jack of the DCM-6. For further information, refer to the 26-3805 owner's
manual.

Note: Modem operation with acoustic cups is not as reliable as direct con-
nect operation.

(dtc-08/04/93)