IBM 412CID Technical Specifications, Flash Rate for Lights, Sound Rate of Intercom Buzzer, Tones

TECHNICAL SPECIFICATIONS

Flash Rate for Lights
On Steady:	Solid light.
Flashing Slowly:	1 sec on, 1 sec off, repeatedly.
Flashing Rapidly:	0.125 sec on, 0.125 sec off, repeatedly.
Blink 1:	1.875 sec on, 0.125 sec off, repeatedly.
Blink 2:	0.875 sec on, 0.125 sec off, repeatedly.
Blink 3:	0.125 sec on, 0.875 sec off, repeatedly.
Sound Rate of Intercom Buzzer
Ring:	0.25 sec on.
Double ring:	0.25 sec on, 0.25 sec off, 0.25 sec on, 0.25 sec off.
ICM ring:	0.25 sec on, 0.25 sec off, 0.25 sec on, 1.25 sec off, repeatedly.
Transfer ring:	1 sec on, 1 sec off, repeatedly.
ID-error ring:	0.25 sec on, 0.25 sec off, repeatedly.
Tones
Dial tone:	Continuous tone.
Busy tone:	0.25 sec on, 0.25 sec off, repeatedly.
DND tone:	0.5 sec on, 0.5 sec off, repeatedly.
Ring back tone	1 sec on, 1 sec off, repeatedly.

31