Difference between revisions of "Tones (AlphaCom)"
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| − | Tone signals in AlphaCom. Measured on MC 68000 basert [[AMC]] bord. | + | Tone signals used in AlphaCom. Measured on MC 68000 basert [[AMC]] bord. |
Revision as of 18:01, 4 September 2008
Tone signals used in AlphaCom. Measured on MC 68000 basert AMC bord.
Timeslot Freq. Level Cadence Tone -------- ----- ------------------ -------------------- ----------------------------- Ts 0 500Hz 2.5V Peak-to-peak Connection/disconnection tone Ts 1 400Hz 2.7V Peak-to-peak Dial tone Ts 2 500Hz 2.6V Peak-to-peak 32 ms on, 32 ms off Failure/ringing tone Ts 3 500Hz 0.45V Peak-to-peak 100 ms on, 100 ms off Success tone, muted Ts 4 500Hz 2.6V Peak-to-peak 100 ms on, 100 ms off Success tone Ts 5 500Hz 0.5V Peak-to-peak 200 ms on, 200 ms off Busy tone, muted Ts 6 500Hz 2.7V Peak-to-peak 200 ms on, 200 ms off Busy tone Ts 7 533Hz 1.3V Peak-to-peak 750 ms on, 12 ms off Off-hook/handset dial tone
The level is measured on an AGA output, terminated with 600 ohms onboard.