Operation And Features; Basic Operations; Features Description - Northern Telecom DMS-100 Series Technical Description, Installation, Operation And Maintenance Instructions

3. OPERATION AND FEATURES

BASIC OPERATIONS

Making a Call and
Accessing Features
Peripheral Equipment
Acoustics
Power
FEATURES
DESCRIPTION
Keys
3.01 The M5112 Business Set can be used to make voice calls and
operate selected DMS-100 or Meridian SL-100 features.
supported features can be accessed via the keys provided on the M5112
Business Set. For further details on software requirements, refer to
297-2011-100 and 297-1001-310. Dial pad, DN, and feature key layout
is shown in Fig. 1-1.
Note: The M5112 Business Set can not be assigned as a
maintenance set.
3.02 Detailed descriptions of how to dial and how to answer a call,
and how to access the various features are given in the User Guide
which is shipped with each telephone. Refer to the User Guide before
attempting to operate the Meridian M5112 Business Set.
3.03 The M5112 Business Set interfaces with the business set
(6X21AC) line card in the Line Concentrating Module (LCM) of the
DMS100/Meridian SL-100 Central Office (CO) equipment. The 6X21AC
supports one business set per line card.
3.04 A speaker is used for alerting tones and voice traffic.
microphone is provided for the Handsfree feature.
3.05 The M5112 Business Set requires external power for operating
the Liquid Crystal Display (LCD) key indicators for all feature keys
beyond key 8, and for the Handsfree feature. Power is supplied from a
16 Vac plug-in transformer and is transmitted to the business set via an
NE-267QA Duplex Adapter through a wire pair which is part of the line
cord.
3.06 M5112 Business Set service during local power
failures. If the external power supply fails, the headset and handsfree
features will not function. Handset operation will be maintained without
the volume adjustment capability. The muting function is not available
during local power failures. Ringer loudness and on-hook dialing
voice quality will suffer some degradation, but feature key/LCD pairs
with the exception of the handsfree and mute key/LCD pairs remain
operational.
PRACTICE 297-2011-202
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