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ASSEMBLY AND CONNECTIONS
2 - 11
Special Line Considerations
Roll Over Phone Lines
A roll over phone system is a group of two or more separate telephone lines that
pass incoming calls to each other if they are busy. The calls are usually passed
down or “rolled over” to the next available phone line in a preset order.
Your MFC can work in a roll over system as long as it is the last number in the
sequence, so the call cannot roll away. Do not put the MFC on any of the other
numbers—when the other lines are busy and a second fax call is received, the
fax call would be transferred to a line that does not have a fax machine. Your
MFC will work best on a dedicated line.
Two-Line Phone System
A two-line phone system is nothing more than two separate phone numbers on
the same wall outlet. The two phone numbers can be on separate jacks (RJ11)
or combined into one jack (RJ14). Your MFC must be plugged into an RJ11
jack. RJ11 and RJ14 jacks may be equal in size and appearance and both may
contain four wires (black, red, green, yellow). To test the type of jack, plug in a
two-line phone and see if it can access both lines. If it can, you must separate the
line for your MFC.
Converting Telephone Wall Outlets
There are three ways to convert to an RJ11 receptacle. The first two ways may
require assistance from the telephone company. You can change the wall outlets
from one RJ14 jack to two RJ11 jacks. Or, you can have an RJ11 wall outlet
installed and slave or jump one of the phone numbers to it.
The third way is the easiest: Buy a triplex adapter. You can plug a triplex adapter
into an RJ14 outlet. It separates the wires into two separate RJ11 jacks (Line 1,
Line 2) and a third RJ14 jack (Lines 1 and 2). Plug the fax machine into Line 2
of the triplex adapter.
RJ14
RJ11
Triplex Adapter
RJ14