Special line considerations; Roll over telephone lines; Two-line telephone system- Page 73

Brother MFC-885CW User's Guide

2014 Dodge Charger SRT Owner Manual

Table of Contents

USER’S GUIDE MFC-685CW MFC-885CW
Section II: Fax
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Telephone Services and External devices

57

7

Special line considerations

7

Roll over telephone lines

7

A roll over telephone 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 telephone line in a 
preset order.

Your machine 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 machine on any of the other numbers; 
when the other lines are busy and a second 
fax call is received, the fax call will be sent to 
a line that does not have a fax machine. 

Your 

machine will work best on a dedicated 
line.

Two-line telephone system

7

A two-line telephone system is nothing more 
than two separate telephone numbers on the 
same wall outlet. The two telephone numbers 
can be on separate jacks (RJ11) or mixed into 
one jack (RJ14). Your machine 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 telephone and see if it can access 
both lines. If it can, you must separate the line 
for your machine. (See page 45.)

Converting telephone wall outlets

7

There are three ways to convert to an RJ11 
jack. The first two ways may require help 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 
telephone 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). If your 
machine is on Line 1, plug the machine into 
L1 of the triplex adapter. If your machine is on 
Line 2, plug it into L2 of the triple adapter.

Triplex Adapter

 

7

Installing machine, external two-line 
TAD and two-line telephone

7

When you are installing an external two-line 
telephone answering device (TAD) and a 
two-line telephone, your machine must be 
isolated on one line at both the wall jack and 
at the TAD. The most common connection is 
to put the machine on Line 2, which is 
explained in the following steps. The back of 
the two-line TAD must have two telephone 
jacks: one labeled L1 or L1/L2, and the other 
labeled L2. You will need at least three 
telephone line cords, the one that came with 
your machine and two for your external two-
line TAD. You will need a fourth line cord if 
you add a two-line telephone.

a

Put the two-line TAD and the two-line 
telephone next to your machine.

b

Plug one end of the telephone line cord 
for your machine into the L2 jack of the 
triplex adapter. Plug the other end into 
the LINE jack on the back of the 
machine.

c

Plug one end of the first telephone line 
cord for your TAD into the L1 jack of the 
triplex adapter. Plug the other end into 
the L1 or L1/L2 jack of the two-line TAD. 

RJ14

RJ11

RJ14

Detailed Information for Brother MFC-885CW User's Guide

Lists of information found in Brother MFC-885CW User's Guide - Page 73

  • 45.) Converting telephone wall outlets 7 There are three ways to convert to an RJ11 jack.
  • 2. You will need at least three telephone line cords, the one that came with your machine and two for your external two- line TAD.

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