GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 140)

Paging PL1877A Microprocessor Radio Telephone Interconnect
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Table 4. Plectron Tone Group/Frequency Chart (in Hz)
3rd and 4th
Digits
0 1 2 3 4 5 6 7 8 9
Tone Group P1 643 672 701 732 765 799 834 871 910 950
Tone Group P2 992 1036 1082 1130 1180 1232 1287 1344 1403 1465
Tone Group P3 1530 1598 1669 1743 1820 1901 1985 2073 2164 2260
Tone Group P4 2361 2465 2575 2688 2807 2932 3062 3197 3339 3487
Tone Group P5 282.2 294.7 307.8 321.4 335.6 330.5 366.0 382.3 399.2 416.9
Tone Group P6 435.3 454.6 474.8 495.8 517.8 540.7 564.7 589.7 615.8 742.5
5/6 Tone
The following charts are used with 5/6 Tone paging:
Table 5 – Tone Timing (in milliseconds)
Motorola EIA
TX up time 350 ms
Preamble 690 ms
Gap 45 ms
1
st
add tone 33 ms
Next 4 tones 33 ms
Gap 800 ms
Number of times to signal 2 ms
Time (in seconds) 2.95 ms
Table 6 - 5/6 Tone Frequencies (in Hz)
Digit Frequency Digit Frequency
0 600 6 1446
1 741 7 1587
2 882 8 1728
3 1023 9 1869
4 1164 R 459
5 1305 X 2010