7500 Series Instruction Manual
Glossary-3
Crosspoint (XPT)
An electronic switch that allows a signal to
pass from an input to an output when the
switch is closed.
DA
Distribution Amplifier. The Series 7000 uses
DAs to expand outputs.
Data Matrix
A signal processing matrix containing mod-
ules that route RS-422 or RS-485 data.
Default
The setup condition existing when a device
is first powered-up or after a system restart.
Destination (DEST or DST)
The point to which Source signals are rout-
ed. In Series 7000, a Destination may include
one or more outputs, across multiple Levels,
with any connector number offset (user-de-
fined in system configuration). (See Multi-
level Switching in Section 1.)
Destination Exclusion Set (DXS)
User-determined set of Destinations exclud-
ed from control by a particular panel. If used,
Destination Exclusion Sets are included in a
Panel Template before the template is down-
loaded to a particular control panel. A specif-
ic Destination Exclusion Set may be shared
by more than one panel template.
DGND
Digital Ground.
DST
See
DSVOM
Dual Sync Video Output Monitor. Part of the
DV Series.
Dumb Terminal
A conversational slave to a host computer.
EC I/F
External Control Interface.
EDP
Eight Destination Paging control panel.
EMI
Electromagnetic interference.
ENC
Enhanced Node Controller. Designed to re-
place the Node Controller it can be used in all
Classic and DV Series matrices. The ENC is
required for Dual Control of a matrix by the
Series 7000 Control System and an external
device such as a PC. The ENC does not sup-
port the Kscope Interface Mezzanine.
EPROM
Erasable Programmable Read Only Memory.
EPROMs are non-volatile memory chips.
They are commonly called Flash memory
chips.
ERR
Error. This is commonly found on the mod-
ules to identify the red error LED.
Ethernet
A local area network (LAN) technology ca-
pable of transmitting information between
computers at speeds of 10 and 100 Mbps.
Exclusion
User-determined Sources excluded from
routing to a particular Destination.
FC
Frame Controller.
FET
Field Effect Transistor.
First Come First Served (FCFS)
Tieline status where it is not necessary to cre-
ate a reservation to use the specified Tieline.
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