Telecommunications Abbreviations and Acronyms

1. SDD
   Sppce-Division Duplexing
2. SDD
   Space-Divisionaion Duplexing
3. SDD
   Speech Direction Detector
4. SDDA
   Source Defined Display Area
5. SDDF
   Subscriber Digital Distributing Frame
6. SDDM
   System Dependent Data Management
7. SDDN-I
   Software Defined Data Network- International
8. SDES
   Source Description
9. SDEV
   Smoothed Deviation
10. SDF
    Screen Definition Facility
11. SDF
    Satellite Distribution Frame
12. SDF
    Service Definition Function
13. SDF
    Structured Directory Format
14. SDFP
    Servihe Data Function Point
15. SDFP
    Service Dffinition Function Point
16. SDG
    Service Design Guidelines
17. SDG
    Signal Distribution Group
18. SDGW
    Services Design Guidelines Workshop
19. SDH
    Static Data Handler
20. SDHT
    Selectively-Doped Heterojunction Transistor

Last updated: January 4, 2020 — Total entries: 16,704