Modem
PBX timed break register recall
European Low Voltage Directive
When correctly installed and maintained, the modem will present no hazard to the user. When
correctly installed, the modem will be connected to the PSTN or a PW and to a Data Terminal
Equipment (DTE) whose modem connections comply with CCITT recommendation V28. The DTE
connections are therefore taken to be safe voltages (less than ± 30 volts).
Ports that are capable of connecting to other apparatus are defined as SELV. To ensure
conformity with EN41003, ensure that these ports are only connected to ports of the same type
on other apparatus.
Compliance with BS6305 Clause 6.2, BS6320 Clause 7.2, and BABT/SITS/82/
005S/D
a. The modem is suitable for connection to the Public Switched Telephone Network (PSTN)
provided by British Telecommunications plc or Kingston Communications (Hull) plc. Circuit
supply by British Communications, Mercury Communication, or Hull City Council. Only direct
exchange lines may be used, not shared service.
b. The modem is suitable for household, office, and similar general indoor use. It is not
suitable for use as an extension to a payphone.
c. BT lines supplied must support either loop disconnect or multifrequency tone signalling.
d. REN (Ringer Equivalence Number).
The REN value of a unit is calculated from 3/n where n is the total number of units which
can be connected in parallel which will still cause the standard bell (as defined in BS6305
Appendix D) to ring.
REN values of less than 0.3 cannot be assigned.
REN = 1
If a telephone or other device is connected in parallel with the modem, the combined REN
must not exceed 4. A BT supplied telephone may be assumed to have REN of 1.0 unless
otherwise noted.
The approval of this modem for connection to the British Telecom public switched telephone
network is INVALIDATED if the apparatus is subject to any modification in any material way not
authorized by BABT or if it is used with or connected to:
i. internal software that has not been formally accepted BABT.
ii. external control software or external control apparatus which cause the operation of
the modem associated call set-up equipment to contravene the requirements of the
standard set out in BABT/SITS/82/005S/D.
All other apparatus connected to this modem and thereby connected directly or indirectly to the
British Telecom public switched telephone network must be approved apparatus as defined in
Section 22 of the British Telecommunications Act 1984.
Compliance with BS6789: Section 3.1 and Part 2
a. The modem is not capable of allowing Auto Call using '999' or other PABX emergency
numbers.
b. Modes other than modes 1, 2, or 3 should not be used on the BT PSTN. This modem
is a mode 1 device.
Summary of Contents for CommPlete 4000
Page 1: ...CommPlete 4000 Communications Server User Guide...
Page 5: ...CommPlete 4000 Communications Server Overview 5 1 System Overview...
Page 10: ...10 CommPlete 4000 Communications Server Overview...
Page 11: ...CommPlete 4000 Communications Server Overview 11 2 Installing Your CommPlete 4000...
Page 16: ...16 CommPlete 4000 Communications Server Overview...
Page 17: ...CommPlete 4000 Communications Server Overview 17 3 Getting Started with RASExpress...
Page 23: ...CommPlete 4000 Communications Server Overview 23 4 Hardware removal Replacement...
Page 33: ...CommPlete 4000 Communications Server Overview 33 5 Troubleshooting...
Page 36: ...36 CommPlete 4000 Communications Server Overview...
Page 37: ...CommPlete 4000 Communications Server Overview 37 6 Service Warranty and Technical Support...
Page 41: ...CommPlete 4000 Communications Server Overview 41 Appendices...
