Avaya S8700 Series, Руководство по обслуживанию

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Maintenance Architecture
555-233-143 1-20 Issue 1 May 2002
Insertion Loss for Port-to-Port, Analog or Digital
Table 1-8 lists the insertion loss in the system for different connection types for the
United States. Table 1-9 shows the overload and cross-talk characteristics.
Intermodulation Distortion
Table 1-10 lists the intermodulation distortion in the system for analog-to-analog
and analog-to-digital, up to 9.6 kbps data.
Table 1-8. Insertion Loss for the 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 1-9. Overload and Crosstalk
Overload level +3 dBm0
Crosstalk loss >70 dB
Table 1-10. Intermodulation Distortion
Four-Tone Method Distortion
Second-order tone products >46 dB
Third-order tone products >56 dB