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Page 346 of 504 Appendix A: Meridian Modular Telephones
553-3001-367 Standard 3.00 August 2005
when additional power is needed to operate the telephone or its optional
hardware. Power Supply Boards come installed in factory-assembled
configurations which require additional power.
Note 1: If a power failure occurs, configurations that require loop power
will only continue to work if the system has battery backup. Only those
options which require additional power will cease to function.
Note 2: During a power failure, the carbon agent headset on the
M2216ACD-2 will fail and the electret supervisor's jack can be used as
an agent jack. If no headset was plugged in to the electret jack at this
time, the call is dropped, the agent logged off and must log in again once
the electret headset is plugged in. When power is restored, the carbon
jack returns automatically.
Power Supply Board
The power supply option consists of a Power Supply Board which mounts
inside the telephone, coupled with an external wall-mount transformer or
closet power supply which provides power to the Power Supply Board. The
Power Supply Board receives its power through pins 1 and 6 of the line cord.
Table 54
Power requirements
Telephone type Loop power
Additional power
(Power Supply Board)
M2006 Basic configuration Any option(s)*
M2008/2008HF Basic configuration Any option(s)
M2616 Basic configuration (with
Handsfree) and Display
Programmable Data Adapter
Key Expansion Module
External alerter interface
M2216ACD-1 Basic configuration (with Display) Any option(s)
M2216ACD-2 No All configurations
*No display can be added to the M2006 set.