COMSPHERE 3900 Series Modems
Auxiliary Cables Not Supplied
To add an external telephone to your modem, use an external "Y" cable to connect the phone
line to both the modem and the telephone (Figure C-2).
Figure C-2. Wiring Diagram — "Y" Cable for External Telephone
C-4
November 1996
3910-A2-GN32-30