beautypg.com

For your information (for u.k.), 11 setup & preparation before use - chapter 1 – Brother Fax-1020Plus User Manual

Page 23

background image

1-11

SETUP & PREPARATION BEFORE USE - CHAPTER 1

FOR YOUR INFORMATION (For U.K.)

Using extension telephones

It may be that your premises are already wired with parallel extension telephones, or
you intend to add extension telephones to your line, in addition to your machine. While
the simplest arrangement is straightforward parallel connection, there are some reasons
as to why this arrangement will cause unsatisfactory service, the most obvious of which
is inadvertent interruption of a facsimile transmission by someone picking up an extension
telephone in order to make an outgoing call. Additionally, remote activation may not
operate reliably in such a simple configuration.
This machine may also be set to make a delayed transmission (i.e. a transmission at a
pre-set time). This pre-set job may coincide with someone picking up an extension handset.
Such problems can easily be eliminated however, if you arrange modification of your
extension wiring circuit, such that extension devices are connected “downstream” of
your machine, in a master/slave configuration. In such a configuration, this machine
can always detect whether a telephone is in use, thus it will not attempt to seize the line
during that time. This is known as “telephone off-hook detection.”
The inadvisable configuration is shown in figure 1 below, and the recommended master/
slave configuration is shown in figure 2.
This new connection configuration can be arranged by your contacting BT, Kingston
upon Hull Telecommunications, your PABX maintainer or a qualified telephone
installation company as appropriate. Simply explained, the extension telephone circuit
should be terminated on a normal modular plug (BT 431A style), which in turn should
be inserted into the modular socket of the white “T”-shaped connector provided as part
of the line cord assembly.

FAX

EXTENSION

SOCKET

EXTENSION

SOCKET

MASTER
SOCKET

INCOMING

LINE

INADVISABLE CONNECTION OF EXTENSION SOCKETS

Fig. 1.

EXTENSION

SOCKET

EXTENSION

SOCKET

MASTER
SOCKET

INCOMING

LINE

RECOMMENDED CONNECTION OF EXTENSION SOCKETS

Fig. 2.

FAX

FAX MACHINE MUST BE PLUGGED

INTO MASTER SOCKET

DISCONNECT

This manual is related to the following products: