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Page 104 of 532
Power supply board
553-3001-367
Standard 1.00
The Handsfree feature, which is integrated into the M2008HF/M2616,
requires no additional power.
Certain configurations of telephones and options need more than basic loop
power to operate. Table 19 on
Meridian Digital Telephones for NTZK telephones and Table 4 on
lists the types for NT2K telephones. They show when additional power is
needed to operate the telephone or its optional hardware. Power Supply
Boards come installed in factory-assembled configurations that require
additional power.
Note 1: If a power failure occurs, configurations that require loop power
continue to work only if the system has battery backup. Only those
options that require additional power cease to function.
Note 2: During a power failure, the carbon agent headset on the
M2216ACD-2 fails and the electret supervisor's jack can be used as an
agent jack. If no headset is plugged in to the electret jack during power
failure, the call is dropped, and the agent is logged off and must log in
again once the electret headset is plugged in. When power is restored, the
carbon jack returns automatically.
The power supply option consists of a power supply board that mounts inside
the telephone, coupled with an external wall-mount transformer or closet
power supply that provides power to the power supply board. The power
supply board receives its power through pins 1 and 6 of the line cord.
When installing an MCA or MPDA to NTZK or NT2K phone sets with a date
code prior to January 1998, a Power Option board is required, along with an
additional power source.
When installing an MCA in an NT9K phone set or an NT2K with date code
of January 1998, install only the MCA (an additional Power Option board and
Jumper board are not required).
The power supply board connects to the telephone through a 14-pin bottom
entry connector.
October 2003
page 105
lists the types of M2000 Series
page 106
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