Signaling To Co; Transmission Specifications; Dtmf Frequencies - Panasonic DBS-576 Technical Manual

      

Signaling to CO

Dial pulse
Break ratio
Minimum pause
Trunk start signaling

Transmission Specifications

Impedance
Overload level
Insertion Loss CO trunk to analog station
Analog station to CO trunk
CO trunk to digital station
Digital station to CO trunk
Digital station to digital station
Digital station to analog station
Analog station to digital station
Analog station to analog station

DTMF Frequencies

78 Chapter 6 - Specifications
Item
Item
Digit
1
2
3
4
5
6
7
8
9
0
*
#
Specification
8 to 11 pulses per second
58% to 64%
0.7 to 1.0 seconds
Loop or ground start; E&M wink or immediate start
Specification
600 Ohms
600 Ohms
0 dB
0 dB
0 dB
0 dB
6 dB
6 dB
6 dB
6 dB
Frequency (Hz)
700 + 1200
700 + 1340
700 + 1480
760 + 1200
760 + 1340
760 + 1480
860 + 1200
860 + 1340
860 + 1480
940 + 1340
940 + 1200
940 + 1480