The meaning of the Acronym SDH is...

SDH is

• Synchronous Digital Hierarchy ( SONET)

More Meanings For SDH:

• Synchronous Digital Hierarchy
• Synchronous Digital Hierarchy
• Synchronous Digital Hierarchy ( SONET)
• Synchronous Digital Hierarchy
• Synchronous Digital Hiarchy
• Sixth Division Heroes
• SubDural Hematoma
• SODEXHO Marriott Services, Inc.
• System Development Handbook
• System Definition Handbook
• Software Development Handbook
• Smack Down Hotel
• Santa Rosa De Copan, Honduras

SDH is also in:

• Airport Codes
• Electronics
• General
• NASA
• Networking
• NYSE Symbols
• Physiology
• Sports
• Telecom
• Unfiled