1
. INTRODUCTIO
N
Your FDS 3500 is a sophisticated automatic switching device which wil
l
enable you to connect your fax machine or modem onto your existin
g
telephone line
. Your FDS 3500 has been designed to meet your growin
g
requirements and it will give many years of trouble free service
.
WE STRONGLY RECOMMEND THAT YOU REA
D
SECTIONS 1,2 AND 3 OF THIS USER GUID
E
BEFORE INSTALLING YOUR FDS 3500
.
FDS 3500 is the only device of it's type that will give you telephon
e
priority It has been designed to monitor all of your telephone calls an
d
transfer fax calls to your fax machine under certain conditions
. For th
e
majority of your telephone calls, voice calls
. FDS 3500 does not act a
s
a switch, it simply sits in the background and monitors the line
.
Your FDS 3500 will detect the calling tones (known as CNG) which ar
e
transmitted by most fax machines. On detecting these calling tones
,
FDS 3500 will transfer these fax calls to your fax machine
.
FDS 3500 will also switch calls to your fax machine under certain othe
r
conditions, the details of which are contained in the relevant section
s
of this user guide
.
This manual, together with the Quick Reference Guide, has bee
n
designed to take you through the installation of your FDS 3500 step b
y
step
. You will not need any specialist knowledge or tools
. Simply refe
r
to the section of this user guide that is closest to the description of you
r
particular installation and follow the instructions
.
NOTE
:
On
the rear
of your FDS 35010 you will find six smal
l
switches
. These switches have been preset at tile fectov
y
to suit the majority of users
. It is extremely simple to alte
r
the position of these switches to suit your particula
r
requirements
. Please consult Section 12 of this user guid
e
before altering the position of these switches
.
5
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