Appendix G - Specifications - Talkswitch 48-CA User Manual

Appendix G
Extension Interface
Loop range
On hook voltage
Off hook loop voltage source
Off hook loop current
Ringing voltage
Ringing frequency
Total supported ringing load
Trunk type
Connector type
Interface impedance
Dial tone level
Signaling type
Flash hook supported
C.O. Interface
Interface impedance
Trunk type
Connector type
Ringing impedance
Ringing sensitivity
REN
S p e c i f i c a t i o n s
Specifications
0 to 600 ohms
35 volts
35 volts
27 to 40 mA
90 volts RMS
20 Hz - True Sine wave
5 REN
Loop start
RJ-11, 2 pin
600 ohms
-2.4 dBm
DTMF only
Yes
configurable -
900 ohms + 2uF
900 ohms
600 ohms + 2uF
600 ohms
Loop start
RJ-11, 4-pin
3,900 ohms
45 volts RMS @ 20Hz
0.7
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