Loading


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

Results 1-10 of 38 1 2 3 4 > 


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)...SmartNode 485


Product Data Sheets (pdf)...U.S. Robotics Courier 56K Business Modem with V.92


Product Data Sheets (pdf)...T1 WAN Access Router


Product Data Sheets (pdf)...RackNest 2/14

  • Manual... 
  • Modem 3600 Rackmount Card
    Installation and User Guide (Feb-04)
 

Black Box Explains...How MicroRACK Cards fit together.

Slide a function card into the front of the rack. Then slide a connector card in from the back. The rest is simple. Just press the cards together firmly inside... more/see it nowthe rack to seat the connectors.

Changing systems? It’s easy to change to a different connector card. Just contact us, and we’ll find the right connection for you.

Add a hot-swappable power supply (AC for normal operation, VDC for battery-powered sites), and you’re up and running. collapse


Product Data Sheets (pdf)...U.S. Robotics 56K V.90 and V.92 Data Faxmodems


Product Data Sheets (pdf)...MicroRACK

Results 1-10 of 38 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.

Important message about your cart:

You requested more of "" than the currently available. The quantity has been changed to them maximum quantity available. View your cart.

Print
Black Box 1-800-316-7107 Black Box Network Services