User's Manual

Part # 34357-MNL Rev.03 SPEEDLAN 9200 User Guide
Glossary-4
Channel Service Unit/Data Service Unit (CSU/DSU)
A CSU/DSU is a pair of devices that adapts a dead pair (i.e., an unbiased line) to transmit
high-speed data signals. Of course, the pair is manageable and provides a status, but their
main function is be a dead-line modem. Latest versions use digital signals over the dead
line, but older models did not.
Channel Spacing
Channel spacing is the spectral space between RF channels; it may be in KHz or MHz, depending on the
band.
Class (IP Network)
There are three main classes are: Class A, Class B, and Class C.
• Class A: Net, Node, Node, Node 35.0.0.0 (last three octets are available for equipment)
• Class B: Net, Net, Node, Node 128.5.0.0 (last two octets are available for equipment)
• Class C: Net, Net, Net, Node 192.168.1.0 (last octet is available for equipment)
Coaxial Cable
A type of transmission line consisting of a center conductor wire surrounded by insulation that is in turn
surrounded by a conductive shield made of metal foil or wire braid. Often used to connect the RF unit and
modem unit of a wireless system.
Code Division Multiple Access (CDMA)
A system in which all users occupy the same bandwidth. Uncorrelated codes are used to allow for higher
bandwidth occupancy. This is also known as the spread spectrum system.
Common Management Information Protocol (CMIP)
A network management protocol that is consistent with an Open Systems Interconnection (OSI) network
communication model.
Company name
This is the name of the company that owns or maintains the radio given to the terminal.
Console
This device allows you to communicate through the Telnet client to access the configuration software.
Crimp
Crimp the connector to secure the conductors.