S.C. Code Regs. 103-663.3. Subscriber Loop-Transmission Objectives

The following standards are objectives to be used by the ORS staff during testing at the subscriber’s station protector. Acceptable measurements are: DC Line Current: greater than 20 mA Circuit Loss: less than 8.5 db Circuit Noise: less than 20 dBrnC Power Influence: less than 90 dBrnC Balance greater than 60 dB (Where Balance (dB) = Power Influence - Circuit Noise)