What does SDH stand for?
SDH stands for "Synchronous Digital Heirachy"
How to abbreviate "Synchronous Digital Heirachy"?
"Synchronous Digital Heirachy" can be abbreviated as SDH
What is the meaning of SDH abbreviation?
The meaning of SDH abbreviation is "Synchronous Digital Heirachy"
What does SDH mean?
SDH as abbreviation means "Synchronous Digital Heirachy"
