INSTRUCTION
MANUAL
PC258O
Important Information
The REN number of this apparatus is 1.5.
The REN indicates how many telephones or other types of equipment may be connected to your telephone line
simultaneously. This may be calculated by adding up all the REN values of the equipment connected to the
line. A standard telephone can operate correctly if the total is 4 or less. If you exceed this number some or all
of the bells or ringers may fail to operate correctly.
This apparatus has been approved for use with the following facilities:
•
Auto Dialling
•
Auto Answering
•
Repeat Attempt Dialling
•
Tone Detection
•
Series Connection Facility
•
Modem Facility
•
Alarm Dialling and Signalling Facility
Any other usage will invalidate the approval of the apparatus if as a result it then ceases to comply with the
standards against which approval was granted.
This apparatus has been approved for connection to the Public Switched Telephone Network (PSTN), including
BT, Kingston Upon Hull and Mercury.
This apparatus is not suitable for use as an extension to a payphone.
Only the network operator or a person authorised by the network operator is allowed to make the connection
from this apparatus to the PSTN.
Due to the lack of echo suppression tone, this apparatus may not be suitable for dialling international calls.
The definition of a Relevant Branch System (RBS) can be found in BS 6789 Section 6.1:1986 Clause 2.4
APPROVED for connection to
telecommunication systems
specified in the instructions for
use subject to the
conditions set out in them.
S/4188/3/R/503183
DSC PC2580
REN = 1.5
© 1994
Digital Security Controls Ltd.
29000966 R0
Printed in Canada
December 5 1994