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  • Manual... 
  • 10BASE-T/100BASE-TX Hardened Ethernet Extender Switch
    (Version 1)
 
  • Manual... 
  • RS-232 Surge Protector, DB9 Manual
    Manual for SP361A-R2 (Version 1)
 

  • Manual... 
  • Hardened Gigabit Edge Switch (8-Port) User Manual
    User Manual for the LGH008A (Version 1)
 



Black Box Explains...DDS vs. T1.

DDS (Digital Data Service) is an AT&T® service that transmits data digitally over dedicated leased lines. DDS lines use four wires, and support speeds up to 56 kbps; however, DDS... more/see it nowis actually a 64-kbps circuit with 8 kbps being used for signaling. You can also get 64-kbps (ClearChannel™) service. Since the transmission is digital, no modems are needed. Dedicated digital lines are ideal for point-to-point links in wide-area networks.

T1 is a dedicated transmission line operating at 1.544 Mbps. It’s comprised of 24 DSOs, each supporting speeds of 64 kbps. The user sends data at N x 56 or N x 64 over T1 circuits. T1 operates over twisted-pair cable and is suitable for voice, data, and image transmissions on long-distance networks. collapse


Product Data Sheets (pdf)...Crossover Media Converters Economy Crossover Media Converters

  • Pdf Drawing... 
  • Ivory GigaBase2 CAT5e Jack with Universal Wiring
    Drawing for the FMT922-R2 and FMT922-R2-25PAK.
 
  • Manual... 
  • 19" Rackmount Power Strips and Surge Suppressors 48" 70" 77" Vertical Power strips and Surge Suppres
    Users Manual (Oct-00)
 
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