Loading


Categories (x) > Datacom > Modems and CSUs (x)

Results 21-30 of 39 < 1 2 3 4 > 

Product Data Sheets (pdf)...Modem 202 and Modem 202T



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)...T1 WAN Access Router


  • Manual... 
  • T1/FT1 CSU/DSU User Manual
    User Manual for the MT1500A (Version 1)
 


Product Data Sheets (pdf)...Industrial Modem 288


Product Data Sheets (pdf)...SmartNode 485


Product Data Sheets (pdf)...G.703 ClearChannel NTU G.703/G.704 NTU

Results 21-30 of 39 < 1 2 3 4 > 
Close

Support

Delivering superior technical support is our highest priority. Depending on the products or services we provide for you, please visit your appropriate support area.



 

You have added this item to your cart.

Print
Black Box 1-877-877-2269 Black Box Network Services