Station) details the way in which each type of call, when activated via the Call Station, can be terminated.
Signal description
Signal numbers from 1 up to 12 are attention or chime tones. The tone is quit as soon as the activating key is released.
Signal numbers from 18 up to 50 are alarm signals.
Alarm tones continue, even though the activating key is released. An alarm tone stops at the end of the signal duration or after activating the relevant key again.
Signal numbers from 81 up to 87 are identical to 1 up to 7.
These signals are meant for time signalling purposes. However, they will always finish their cycle, even if the activating key is released.
Attention Chime Tones
1
2
3
659 Hz.
4
392 Hz.
5
330 Hz.
6
330 Hz.
7
392 Hz.
8Upsweeping signal, from 700 up to 880 Hz in 400 msec, followed by 400 msec silence and repeating.
Signal duration 5 seconds.
9Alternating signal, frequencies 650 and 850 Hz. Signal duration 5 seconds.
10Up and down sweeping signal, frequencies
500 and 600 Hz with sweeptime of 500 msec. Signal duration 5 seconds.
11 Single tone, frequency 1000 Hz, 300 msec on,
200 msec off and repeating. Signal duration 5 sec.
12 Slow whoop, sweeping from 500 up to
1200 Hz in 3.5 seconds, followed by
500 msec silence. This procedure will be repeated twice.
Alarm Tones
18 Single tone, frequency 440 Hz. Signal duration 60 seconds.
19 Single tone, frequency 440 Hz. Lasts until second activation.
20 Sweeping signal, from 1200 Hz down to
500 Hz and repeating. Signal duration 60 seconds.
21 As signal number 20, lasts until second activation.
22 Alternating signal, frequencies 440 and
554 Hz.
Signal duration 60 seconds.
23 As signal 22, lasts until second activation.
24 Sweeping signal, from 100 up to 420 Hz in 5 seconds, holding that frequency for
60 seconds, sweeping down to 100 Hz in
5 seconds and ending.
25 Sweeping signal, from 100 up to 420 Hz in 3 seconds, holding that frequency for
10 seconds, sweeping down to 300 Hz in
3 seconds, holding that frequency for
10 seconds, repeating complete cycle until
1 minute passed and ending.
26 STANAG all clear.
Sweeping signal, from 1000 Hz down to 650 Hz in 3 seconds, followed by 2 seconds silence and repeating.
Signal duration 60 seconds.
27 As signal 26, lasts until second activation.
28 Sweeping signal, from 700 up to 880 Hz in 400 msec, followed by 400 msec silence and repeating. Signal duration 60 seconds.
29 As signal 28, lasts until second activation.
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