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Page 300 of 544 Meridian Modular Telephones
553-3011-100 Standard 14.00 January 2002
M2006/M2008:
M2016S/M2616/M2216ACD:
A 500 Hz buzz signal is provided for incoming call notification while the
receiver is off-hook.
Power requirements
The M2006, M2008, M2616 (basic configuration and with Display Module)
and M2216ACD-1 are loop powered. Loop power consists of a -30 V AC
power source and assumes a 3500 ft. (915 m) maximum loop length of 24
AWG wire and a minimum 15.5 V AC at the telephone terminals.
Note: The loop length limit is defined by a 15.5 dB loss at 256 KHz.
Longer lengths can be determined using the wire's gauge and insulation.
The Handsfree feature, which is integrated into the M2616, requires no
additional power.
Some configurations of telephones and options need more than basic loop
power to operate. Table 92 lists the Meridian Modular Telephones and shows
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.
If a power failure occurs, configurations which require loop power only will
continue to work if the Option 11C system has battery backup. Only those
options which require additional power will cease to function.
3 1600 Hz, 2000 Hz 10.4
4 1600 Hz, 2000 Hz 2.6
3 333 Hz, 250 H 10.4
4 333 Hz, 250 Hz 2.6