Nortel Meridian 1 Succession 1000 Description page 102

Page 102 of 532
Line engineering
553-3001-367 Standard 1.00
All other telephony tones, such as dial tone or overflow, are provided by the
system from a Tone and Digit Switch.
Alerting tone characteristics
The tone frequency combinations are as follows:
Tone Frequencies
1 667 Hz, 500 Hz
2 667 Hz, 500 Hz
M2006/M2008/M2008HF:
3 1600 Hz, 2000 Hz
4 1600 Hz, 2000 Hz
M2016S/M2616/M2216ACD:
3 333 Hz, 250 Hz
4 333 Hz, 250 Hz
A 500 Hz buzz signal is provided for incoming call notification while the
receiver is off-hook.
M2000 Series Meridian Digital Telephones use twisted pair wiring on
transmission lines selected by the rules given in "Digital telephones line
engineering" on page 493
ft. (1067 m), assuming 24 AWG (0.5 mm) standard twisted wire with no
bridge taps. A 15.5 dB loss at 256 kHz defines the loop length limit. (Longer
October 2003
Warble Rate
(Hz)
5.2
&c. The maximum permissible loop length is 3500
2.6
5.2
2.6
5.2
2.6