Skip to content

Network Technologies: ISDN, ATM, PDH/SDH and DSL - TikZ Figures

ISDN reference configuration: functional groups TE1/TE2, TA, NT2, NT1 linked to the exchange through reference points R, S, T and U
Fig: ISDN reference configuration: functional groups TE1/TE2, TA, NT2, NT1 linked to the exchange through reference points R, S, T and U
ATM structure: (a) the 53-byte cell as a 5-byte header plus 48-byte payload; (b) a transmission path carrying virtual paths (VP), each carrying several virtual channels (VC)
Fig: ATM structure: (a) the 53-byte cell as a 5-byte header plus 48-byte payload; (b) a transmission path carrying virtual paths (VP), each carrying several virtual channels (VC)
SDH add/drop multiplexer (ADM) on a ring: it drops and inserts selected tributaries from the STM-N aggregate (STM-1 =155.52)
Fig: SDH add/drop multiplexer (ADM) on a ring: it drops and inserts selected tributaries from the STM-N aggregate (STM-1 =155.52)
ADSL (Annex A) frequency plan on the copper pair: POTS voice band, a guard, the upstream band and the wider downstream band up to 1.1 (FDM). Exact edges are annex/profile dependent
Fig: ADSL (Annex A) frequency plan on the copper pair: POTS voice band, a guard, the upstream band and the wider downstream band up to 1.1 (FDM). Exact edges are annex/profile dependent