HP Officejet J3680 All-in-One Printer - Manual (Page 98)

Since your computer dial-up modem shares the phone line with the device, you cannot
use both your modem and the device simultaneously. For example, you cannot use the
device for faxing if you are using your computer dial-up modem to send an e-mail or
access the Internet.
There are two different ways to set up the device with your computer based on the number
of phone ports on your computer. Before you begin, check your computer to see if it has
one or two phone ports.
•
If your computer has only one phone port, you will need to purchase a parallel splitter
(also called a coupler), as shown below. (A parallel splitter has one RJ-11 port on the
front and two RJ-11 ports on the back. Do not use a two-line phone splitter, a serial
splitter, or a parallel splitter which has two RJ-11 ports on the front and a plug on the
back.)
Figure 7-12 Example of a parallel splitter
• If your computer has two phone ports, set up the device as described below.
Figure 7-13 Back view of the device
1 Telephone wall jack
2 Use the phone cord supplied in the box with the device to connect to the
1-LINE port
3 Computer with modem
4 Telephone
Chapter 7
94 Configure and manage