Glossary – CANOGA PERKINS 3240S SNMP Managed Fiber Optic Multiplexer User Manual
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3240S F I B E R O P T I C M U L T I P L E X E R
3240S Fiber Optic Multiplexer
Glossary
G-1
A
ALM
=
Alarm (as in the Alarm Signal Indicator)
AMI
=
Alternate Mark Inversion - line coding format in T1 transmission where successive ones (marks)
are alternately inverted
AUTO
=
Automatic (as in Automatic Mode of operation)
B
B8ZS
=
Binary 8 Zero Substitution - line coding scheme used to accommodate the ones density
requirement for digital t-carrier facilities
BNC
=
Bayonet-locking Connector (for coaxial cables)
BOOTP
=
Boot Protocol - A TCP/IP protocol which allows an internet node to discover certain start-up
information such as its IP Address
bps
=
bits per second
BULM
=
Backup Link Monitor
C
CFR
=
Confirmation to Receive Frame
CH GND
=
Chassis Ground
CHAN
=
Channel (Interface Port)
CLK
=
Clock
COM1
=
Communications Port 1 (usually refers to a PC communication port)
COM2
=
Communications Port 2 (usually refers to a PC communication port)
CPU
=
Central Processing Unit
CR
=
Carriage Return
Ctrl
=
Control (as in the ‘Ctrl’ key on a PC keyboard)
CTS
=
Clear To Send
D
DA-15
=
Connector, D-shell, A size,15-pin
dB
=
Decibel (strength of a measurement relative to an arbitrary measurement)
DB-25
=
Connector, D-shell, B size, 25-pin
DCD
=
Data Carrier Detect
DCE
=
Data Communications Equipment
DS0
=
Digital Signal, level Zero (64kbps - 24 DS0’s equal T1)
DS1
=
Digital Signal, level One (1.544Mbps - T1)
DSR
=
Data Set Ready
DTE
=
Data Terminal Equipment
DTR
=
Data Terminal Ready
E
E1
=
data transfer rate of 2.048Mbps (level one)
Esc
=
Escape (as in the 'Esc' key on a PC keyboard)
ESD
=
Electrostatic Discharge
EXT
=
External