This revised standard describes the electrical interfaces for the DS1, DS1c, DS2, and DS3 levels of the North American digital telecommunications hierarchy. Compliance with this standard is necessary to achieve satisfactory interworking of the telecommunications network.
More Standards PDF
AWWA C227-11
$70.00 $140.00
AWWA C206-11
$57.00 $115.00
AWWA D104-11
$70.00 $140.00
AWWA C219-11
$70.00 $140.00