December 1974 Telephone and Telegraph Company, Printed in Number 10 U.S.A.
The 39A oscillator was developed to meet the precise frequencycontrol requirements of the L5 jumbogroup frequency supply.
Verification of the transmission integrity of a complex, broadband network such as the L5 Coaxial-Carrier Transmission System requires many measurements at different locations and considerable proc
It is the goal of the Bell System to maintain frequency offset in any transcontinental circuit to within ±2 Hz.
While gross performance objectives for analog multiplex equipment are available, the detailed statement of design objectives is part of the development task.
The repeaters and equalizers in the L5 coaxial-carrier transmission system are spaced at approximately one-mile intervals along the cable system.
Vol. 53, No. 10, December 1974 Printed, in U.S.A. L5 SYSTEM: Line-Protection Switching By J. H. GREEN and R. W.
During the last 30 years, long-haul transmission facilities have been rapidly expanded to meet the increasing need for both voice and data transmission, and it is expected that rapid growth will co
Physical Design By R. J. WIRTZ and W. G.
The basic function of the L5 repeatered line is to provide a lossless transmission facility between any two L5 terminal stations, which may be located as far as 4000 miles (6400 kilometers) apart,
