Line Engineering; Powering Requirements - Northern Telecom DMS-100 Series Technical Description, Installation, Operation And Maintenance Instructions

PRACTICE 297-2011-202
Shock

LINE ENGINEERING

POWERING
REQUIREMENTS.
Page 2-2
• Maximum acceleration 15 m/s/s.
2.08 Packaged: The Business Set, within its packaging, is designed
to withstand normal handling during shipment.
2.09 Unpackaged: The telephone and the handset are designed to
withstand accidental dropping during normal use, without sustaining
damage, as follows:
•
Telephone: when dropped on any face or corner from a height of
750 mm (30 in).
• Handset: when dropped from a height of 1.5 m (5 ft).
2.10 The M5112 Business Set operates to its full potential through
twisted pair wiring on transmission lines selected by the rules given in
297-2011-180.
2.11 The M5112 Business Set requires a 16 Vac external power
supply (plug-in transformer) which must meet the following power
consumption requirements:
Active local power consumption:
Idle local power consumption:
Maximum current drawn, with the
set active and the speaker driven
to maximum volume, is less than
120 mA RMS (2.5 Watts).
Maximum current drawn by the
telephone in the idle state is less
than 60 mA RMS (1.3 Watts).