Multi-Tech Systems MT5600ZDX - Manual (Page 79)

79
Owner’s Manual
connections comply with ITU recommendation V28. The DTE connections
are therefore taken to be safe voltages (less than ± 30 volts).
The main power source shall be installed near to the equipment and shall
be easily accessible. The plug that connect to the apparatus to the main
power supply must be fitted with a 5A fuse that complies with BSI1362.
Ports which 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.