76 List of terms
Frame
A distributing frame. The structure on which all distribution and trunk
cables into a central office are terminated (attached).
Frequency Division Multiplexing (FDM)
Combining two or more information channels into a single transmission
channel by assigning each information channel an exclusive frequency band
within the transmission channel bandwidth. (See “Multiplex” and “Time
Division Multiplex.
“)
I/O
Input/Output; Refers to devices that communicate with customer
quipmcnt
The result equals a properly functioning communications channel or system.
I/O
Channel
Input/Output channel; A component in a computer system controlled by the
central processing unit that handles the transfer of data between main
‘-
storage and peripheral equipment.
I/O
Panel
A separation plane that prohibits RF (Radio Frequency) emissions from
passing through the cube and provides mounting for I/O cable connectors.
ISDN
IVD
Kbk
Line
Loop
MCDS
Integrated Services Digital Network.
Integrated Voice and Data.
Kilobits
per second.
A communications channel or circuit an electrical path.
A bidirectional path between network equipment and peripheral equipment.
Multi-Channel Data System.
System overview
563-3001-100
.
.