I
Issue 3 April 1994
When entering network addresses into the dialing directory,
please ensure that the telephone numbers are correct.
Interconnection circuits between this modem and any other
equipment should be such that the equipment continues to
comply with the requirements of clause 4.2 of EN41003 for TNV
(Telephone Network Voltage) circuits and clause 2.3 of EN
60950 for SELV (Safety Extra Low Voltage) circuits after making
connection between circuits.
The power supply must be properly connected and switched on
before the modem will work correctly.
Ringer Equivalence Number
The Ringer Equivalence Number (REN) is a customer guide
indicating approximately the maximum number of items of
apparatus that should be connected simultaneously to the
telephone line. The sum of the RENs should not exceed four.
This value includes any BT provided instrument which may be
assumed to have a REN of 1 unless marked otherwise. The
REN of the KeepInTouch Card modem is listed in Appendix B,
Technical Specifications.
!
WARNING:
Do not connect any other items of apparatus in parallel with
this modem.
Telephone Line
The modem may be connected to the following circuits:
G
Direct exchange lines of the public switched telephone
network, but not shared service or 1+1 carrier systems.
The line should provide either loop disconnect or
multifrequency signalling.
G
The modem may also be connected as an extension to a
compatible PABX, although there is no guarantee of
correct working in all circumstances.
