BT 1050 - Manual (Page 34)

30
TECHNICAL INFORMA
TION
Technical information
How many phones can you have?
All items of telephone equipment have a Ringer
Equivalence Number (REN), which is used to
calculate the number of items which may be
connected to any one telephone line. Your
Freestyle 1050 has a REN of 1. A total REN of 4
is allowed. If the total REN of 4 is exceeded, the
telephones may not ring. With different telephone
types there is no guarantee of ringing, even when
the REN is less than 4.
Connecting to a switchboard
Your Freestyle 1050 may be connected to
compatible switchboards. If in doubt, your
switchboard supplier or maintainer should be
able to offer help. Advice on connection to BT
switching systems can be obtained by dialling
BT on 152.
If you do not have a compatible switchboard, it
cannot be guaranteed that your Freestyle 1050
will operate correctly under all possible conditions
of connection.
WARNING
The apparatus is only designed to be operated in
a normal office or domestic environment where
the relative humidity does not exceed 60%. It should
not be used in bathrooms or near water.
Approval for use
Your Freestyle 1050 is tested and approved for
connection to public networks, provided it is
used in accordance with the guidelines in this
user guide.
You may connect it:
• To direct exchange lines.
• To extensions with new plug and socket
arrangements provided with these direct
exchange lines.
• To compatible switchboards.
You may NOT connect it:
• To shared service (party) lines.
• As an extension to a payphone.
This phone is designed for UK use only. Using it
abroad may violate local radio laws.
The base unit is intended for use when powered
from the 12V AC mains adaptor supplied, which
conforms to EN60950. Any other usage will
invalidate the approval given to this apparatus if,
as a result, it ceases to comply with EN60950.
Environment
Your Freestyle 1050 should be kept free of dust,
moisture, high temperature and vibration, and
should not be exposed to direct sunlight. Do not
stand it on carpets or other surfaces which
generate fibres, or place it in locations which
prevent the free flow of air over its surfaces.