30B+D Hear it!

30B+D Telecom Definition

Synonymous with primary rate access (PRA). Referring to the ITU-T specification for an ISDN interface supporting 30 bearer (B) channels and one data (D) channel. 30B+D is compatible with E-1, and is used outside of North America and Japan. See also ISDN and PRA.

Browse dictionary entries near 30B+D

  1. ‹ 30-year paper
  2. ‹ 30/360
  3. ‹ 3-D
  4. ‹ 2Q
  5. ‹ 2G
  6. ‹ 2B1Q
  7. ‹ 2B+D
  8. ‹ 2b
  9. ‹ 2600 Hz
  10. ‹ 256-QAM
  1. 3b ›
  2. 3G ›
  3. 3G technology ›
  4. 3GPP ›
  5. 3Q ›
  6. 3rd Generation Partnership Project ›
  7. 3x ›
  8. 4 Binary 3 Ternary ›
  9. /4 Differential Quaternary Phase Shift Keying ›
  10. /4 DQPSK ›