A ____ multiplexes 24 input channels together onto one high-speed telephone line.
a. T-1 system c. SDH system
b. SONET system d. congruent system
Answer: A
A ____ multiplexes 24 input channels together onto one high-speed telephone line.
a. T-1 system c. SDH system
b. SONET system d. congruent system
Answer: A