Oki B 4500 User Manual page 94

Statutory User Information (UK only)
The OKIFAX 4500 is approved for connection to telecommunications
systems specified in the instructions for use subject to the conditions
set out in them. The BABT approval number for the OKIFAX 4500 is:
BABT 608397
This apparatus has been approved for the use of the following facilities:
• manual call initiation
• operation in the absence of proceed indication
• auto answer
• modem
• series connection
• simple telephone
Any other usage will invalidate the approval of the apparatus if as a
result it ceases to conform to the standards against which the approval
was granted.
Interconnection circuits should be such that this equipment continues
to comply with the requirements of 4.2 of EN 41003 for TNV circuits
and 2.3 of EN60950 for SELV circuits after making connections
between circuits.
Interconnection points 'Line/TEL1/TEL2' are for connection to TNV
circuits, and the 'Power Inlet Socket' is for connection to a 220-
240VAC, 50/60 Hz supply.
The apparatus has been approved for connection to the public switched
telephone network provided by British Telecommunications Plc,
Kingston Communications Plc, or Mercury Communications Ltd.
The OKIFAX 4500 may be connected to any direct PSTN exchange
line except as an extension to a pay phone. The exchange line must
94
provide facilities for either loop-disconnect or multi-frequency (MF)
dialling.
In order to prevent the misdirection of calls and network interference,
please ensure that all manually programmed telephone numbers are
correctly entered.
This apparatus is also approved for use as an extension instrument to
compatible PBXs. The supplier of the apparatus should be consulted
for an up-to-date list of PBXs with which this apparatus is compatible.
The handset can be used to make "999" calls to the Emergency Services.
The second telephone or answering machine must be connected to the
TEL 2 jack by means of the two-way adapter provided.
The apparatus is suitable for connection to PBXs which return
Secondary Proceed Indication. In these situations, please insert pauses
between the initial access digit and the number to be dialled to the
PSTN.
Series Connection
NOTE 1
The OKIFAX 4500 causes a voltage drop of 1.35V when passing a
PSTN current up to and including 40mA dc. Do not connect the
OKIFAX 4500 with apparatus which, with associated wiring causes
the aggregate of the voltage drops to exceed a value of 2V at a PSTN
line current of 40mA dc.
The 2V level indicates the maximum impairment that may be
introduced between the terminal apparatus and the Network Terminal
Point (NTP) of a Relevant Branch system (RBS) containing the
apparatus.
OKIFAX 4500