Page 108 of 174 Environmentaland safety considerations
553-3001-216 Standard 5.00 January2002
Headset considerations
Testthe headset with the telephone before using. In a noisy environment, an
amplifiedheadset is an option. When the amplified headset is used, there are
twochoices of volume control: the rocker control on the telephone and the
switchon the headset. The user should adjust the telephone volume before
adjusting the headset volume. To provide the best communication with the
leastamount of distortion, th e amplifier should have a higher setting than the
telephonevolume control.
Refer to your distributor for the latest product bull etin from Nortel Networks
recommending headset types for use with the M3900 Series Digital
Telephone.
EMC- Radiated
andConducted Description
EN55022/
CISPR 22Class B
RadiatedEmissions Basic Standard (Europe)
FCCPart 15
Class A
RadiatedEmissions (USA)
CSAC108.8 RadiatedEmissions (Canada)
VCCI EMC (Japan)
AS/NZS3548 EMC(Australia / New Zealand)
EMC- Immunity Description
EN50082-1 Electromagnetic Compatibility - Generic immunity
standardPart 1: Residential, commercial and light
industry(Europe)
IEC801-2 (level 4) ElectroStatic Discharge (Europe)
IEC801-3 (level 2) RadiatedImmunity (Europe)
IEC 801-4 (level 3) FastTransient/Burst Immunity (E urope)