Blockwiring Clause Samples
Blockwiring. The specifications for the Blockwiring are:
(a) Physical Characteristics: two wire copper cable connection for voice grade application
(b) Bandwidth: 300 to 3400Hz (measured at 3dB below maximum signal response)
(c) Signal Attenuation: nominal 1.7dB per km at 1600Hz
(d) Typical Loop Resistance: 300Ω: maximum
(e) Insulation Resistance to Earth: 250K: minimum
(f) Circuit Random Noise: -45dBmp maximum
(g) DC continuity for supporting basic DC signaling required for operation of basic voice telephony
