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Page 108 of 174 Environmental and safety considerations
553-3001-216 Standard 5.00 January 2002
Headset considerations
Test the headset with the telephone before using. In a noisy environment, an
amplified headset is an option. When the amplified headset is used, there are
two choices of volume control: the rocker control on the telephone and the
switch on the headset. The user should adjust the telephone volume before
adjusting the headset volume. To provide the best communication with the
least amount of distortion, the amplifier should have a higher setting than the
telephone volume control.
Refer to your distributor for the latest product bulletin from Nortel Networks
recommending headset types for use with the M3900 Series Digital
Telephone.
EMC - Radiated
and Conducted
Description
EN55022 /
CISPR 22 Class B
Radiated Emissions Basic Standard (Europe)
FCC Part 15
Class A
Radiated Emissions (USA)
CSA C108.8 Radiated Emissions (Canada)
VCCI EMC (Japan)
AS/NZS 3548 EMC (Australia / New Zealand)
EMC - Immunity Description
EN50082-1 Electromagnetic Compatibility - Generic immunity
standard Part 1: Residential, commercial and light
industry (Europe)
IEC 801-2 (level 4) Electro Static Discharge (Europe)
IEC 801-3 (level 2) Radiated Immunity (Europe)
IEC 801-4 (level 3) Fast Transient/Burst Immunity (Europe)