Service Codes
Issue 4 May 2002
1-23 555-233-123
Peak Noise Level
Echo Path Delay
Service Codes
Service codes (for the United States only) are issued by the Federal
Communications Commission (FCC) to equipment manufacturers and registrants.
These codes denote the type of registered terminal equipment and the protective
characteristics of the premises wiring of the terminal equipment ports.
Private line service codes are as follows:
■ 7.0Y — Totally protected private communications (microwave) systems
■ 7.0Z — Partially protected private communications (microwave) systems
■ 8.0X — Port for ancillary equipment
■ 9.0F — Fully protected terminal equipment
■ 9.0P — Partially protected terminal equipment
■ 9.0N — Unprotected terminal equipment
■ 9.0Y — Totally protected terminal equipment
The product line service code is 9.0F indicating it is terminal equipment with fully
protected premises wire at the private line ports.
DCP or BRI phones only decibels above reference noise with C-filter)
Analog to analog 20 dBrnC
Analog to digital 19 dBrnC
Digital to analog 13 dBrnC
DCP or BRI phones only
Analog port to analog port < 3 ms
Digital interface port to digital interface port <
2 ms
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