Maintenance strategy
Signaling
40
Maintenance Procedures
December 2003
Insertion loss
Table 12, Insertion loss (United States),
on page 40 lists the insertion loss in the system for port-to-port,
analog, or digital connections in the United States.
Table 13, Overload and crosstalk,
on page 40 shows the overload and cross-talk.
Intermodulation distortion
Table 14, Intermodulation distortion,
on page 40 lists the intermodulation distortion in the system for
analog-to-analog and analog-to-digital, up to 9.6 kbps data.
Quantization distortion loss
Table 15, Quantization distortion loss (analog port-to-analog port),
on page 41 lists the quantization
distortion loss in the system for analog port to analog port.
Table 12: Insertion loss (United States)
Typical connections
Nominal loss
(dB) at 1 kHz
On-premises to on-premises station
6
On-premises to off-premises station
3
Off-premises to off-premises station
0
On-premises station to 4-wire trunk
3
Off-premises station to 4-wire trunk
2
Station-to-trunk
0
Trunk-to-trunk
0
Table 13: Overload and crosstalk
Overload level
+3 dBm0
Crosstalk loss
>70 dB
Table 14: Intermodulation distortion
Four-tone method
Distortion
Second-order tone products
>46 dB
Third-order tone products
>56 dB
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...