Specifications

CommPlete 4000 Communications Server Quick Start Guide 33
Regulatory Information
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 RENmust 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.
c. Users are advised to check the numbers entered during the Auto Call set up phase prior to dialing.