Sine wave ringer

A sine wave oscillator used in activating the telephone to produce a ringing sound.

- Regarding the dimensions -
A = length
B = width
C = height ( excluding pin ）

Name Physical Appearance Dimensions Specification
2.3W Sine wave ringer module
SR-620
Series
A=50
B=70
C=25
Input voltages
DC5V, DC12V, DC24V, DC48V
Input voltage tolerance:
+/-15% respectively
Output voltage
 AC 75V +/-5V
Prescribed load
 Dial type telephone,
maximum of 3 units
Oscillation frequency
16Hz, 20Hz, 25Hz, 50Hz
(Could be chosen using the selector switch included within the circuit)
Freq. Deviation: +/-10% respectively
Distortion factor
 with 3 units "Dial type telephone" as load: 10% or less
Withstanding voltage
 between Pri. and Sec.: AC 1500V
　
US PAT. NO. 5809131
1W sine wave ringer module

SR-670
Series

A=40
B=40
C=15
Input voltages
 DC5V, DC12V, DC24V, DC48V
Input voltage tolerance:
+/-10% respectively
Output voltage
 AC50V +/-5V
Prescribed load
 Dial type telephone, maximum of 1 unit
(equivalent to 45H + 1uF + 2400 ohms)
Oscillation frequency
 16Hz +/-10%
Distortion factor
 less than 10%
Withstanding voltage
 between Pri. and Sec.: AC 1500V
　
Sine wave ringer module
SR-693
A=60
B=40
C=30
Input voltages
 DC5V to DC12V
Output voltage
 AC60V to 85V
Prescribed load
 Z=3k ohms
Oscillation frequency
 16Hz +/-10%
Distortion factor
 less than 5%
Output side DC impression

Impressed DC +/-20mA, 30 seconds duration
( 48V, 2400 ohms load )
Impressed DC +/-120mA, 10 seconds duration
( 48V, 400 ohms load )
overload max. +/-240mA, 5 seconds duration
( 48V 200 ohms load )



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