Muratec MFX-1500 - Manual (Page 148)

3.4 Should it be necessary to remove the mains connection from the equipment the line
leads must first be disconnected for the BT network.
3.5 The volt drop introduced by the Muratec MFX1500 (the series apparatus) into the
loop connection between the telephone (the main apparatus) and the PSTN line at a
current of 40mA is 0.5 volt +/- 0.1 volt and, therefore, although operation may be
possible initially, any changes to, or modernisation of the network taking place in
the normal course of events may result in your Muratec MFX1500 being connected
to a network service with which it was not designed to be compatible with.
The Muratec MFX1500 should not be used in conjunction with other series
connected apparatus e.g. another facsimile machine. In case of difficulty contact
your supplier.
3.6 Difficulty may be experienced when making calls from other apparatus connected
to the PSTN via the series apparatus. Such difficulties may include:
a) Difficulty in making calls.
b) Problems in telephone conversation being experienced by both parties to the
call.
NOTE: The definition of an Relevant Branch System (RBS)
for PSTN lines is given in BS6789, section 6.1 (1986), clause 2.4.
3.7 Other usage will invalidate any approval given to this apparatus if as a result it
ceases to comply with the edition of EN41003 to which it was approved.
4. TELEPHONE PORT
4.1 Only approved apparatus may be connected to the socket/s provided for associated
telephony.
4.2 The telephone ports marked LINE and EXT TEL on the rear panel of this
equipment or on the optional AL100 are TNV circuit connection points.
4.3 The port marked HANDSET on the rear of this equipment is a TNV Circuit . It is
only intended for use with the Muratec MK-4 Telephone which may be supplied
with this equipment.
4.4 RS232 Port
The RS232 port on this equipment is a SELV CIRCUIT (SAFETY EXTRA LOW
VOLTAGE CIRCUIT) and as such is only suitable for the connection of
compatible equipment. In case of difficulty please contact your supplier.
4.5 PS100
The PS100 optional Parallel Printer Port option if connected is a SELV CIRCUIT
(SAFETY EXTRA LOW VOLTAGE CIRCUIT) and as such is only suitable for
the connection of compatible equipment. In case of difficulty please contact your
supplier
5. AUTO DIALLER OPERATION
5.1 The auto dialler must only be programmed with telephone numbers of compatible
CCITT (ITU) Group 3 facsimile equipment.
5.2 The auto dialler must not be programmed with any emergency numbers e.g. 999.
5.3 The user should check that telephone numbers have been programmed correctly.
5.4 TONE/PULSE SWITCH
The majority of telephone exchanges in the UK still operate on the loop disconnect
(Pulse) dialling system. Increasingly as new telephone exchanges come into
service the dialling system will change to the new multi frequency (Tone) dialling
system. Additional facilities will become available such as 'star' services on the
tone dialling system. The Muratec MFX1500 will operate on either system by
selecting the appropriate system from the control panel of this equipment.
6. GENERAL POINTS
6.1 If you do not have a modular point please contact your local British Telecom sales
office.
6.2 Before calling for service please ensure that the line cord and power cord are
properly connected and that power is switched on. Check that any other telephone
handsets have been correctly replaced on their receptacles and that the phones are
firmly plugged into their sockets.
6.3 Before calling British Telecom for an apparent fault unplug all other telephones on
the line and then plug one telephone into the master socket. If difficulty is still
experienced please contact your supplier.
6.4 It is important to check the above before calling British Telecom as they may
charge for any visit if the problem is not caused by their line or equipment.
6.5 PLEASE NOTE: The fuse in the MFX1500 power supply can not be replaced by
the operator. Please contact your supplier or service company for assistance.