V.35 Adapters  
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V.35 18-pin (F) / DB25 (F)
V.35 18-pin (F) / DB25 (M)
V.35 34-pin (F-F)
V.35 18-pin (M) / DB25 (F)
V.35 20-pin (M) / DB25 (M)
V.35 34-pin (M-M)
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Note(s):
  • V.35 is the interface standard used by most routers and DSUs that connect to T-1 carriers. V.35 is recognized by a blocky 34-pin (M-Block) connector that combines the bandwidth of numerous telephone circuits to provide a high-speed interface between DTE's (Data Terminal Equipment) or DCE's (Data Communication Equipment) over digital lines.