Data And Headset Option; Dial Access; Power - Meridian Nortel 1 Option 11C Technical Reference Manual

Page 346 of 544

Data and headset option

Dial access

Power

553-3011-100 Standard 14.00
M5317 BRI Terminal
An optional feature card (factory or field installed) permits the use of circuit
and packet switched data by way of an RS-232C connector at the rear of the
telephone, which allows connection of a personal computer (PC) terminal;
the card also allows an appropriate headset to be used instead of the built-in
Handsfree/Mute speakerphone. Field installation requires opening the
telephone, which should only be done by an experienced installer. The data
option serves as a DCE (Data Communications Equipment), using either a
subset of the Hayes Smartmodem protocol or an X.25 PAD using X.3, X.28,
X.29 protocols. The RS-232C data port may also be configured to provide
control of the telephone for system test purposes.
Any available dialed code access features may be used. Special screens or
softkeys are not associated with them. The following are examples of dialed
code access features:
• Directed Call Pickup
• Directed Call Park
• Authorization Code Entry
• Call Request
• Loudspeaker Paging
• Dictation Access and Control
Power for the M5317T telephones is always supplied through the line cord.
The telephones can be configured for either designated (continued service
during local power failures) or non-designated (no service during local power
failures) operation.
Power may be provided from PS1 or PS2 source output of NT1 interface, or
can be provided locally from a sealed alternating current (AC) plug-in
transformer with direct current (DC) output.
January 2002