Grass Valley JEP-100 v.1.2.0 - Manual (Page 73)

JEP-100 Installation and Operating Manual 71
Glossary
exclusion
Lockout of selected inputs from selected out-
puts. Example: lockout of a test signal from
bus leading to transmitter.
F
file server
Computer dedicated to providing access to a
hard disk on a LAN. In Jupiter systems, the
PC that holds the Jupiter installation with the
active set.
follow switch
Switch made automatically on one level in
response to a switch made by the operator on
another level. See also AFV,
REVERSE SWITCH -
ING .
FPGA
Field Programmable Gate Array.
full-matrix control
Ability to select any source for any destina-
tion.
G
gateware
Configuration data downloaded to FPGA
device.
gateway
Device for connecting two dissimilar net-
works.
H
hardware address
Another name for the link level address, a
unique identifier required for every device
that operates on a network (for example,
08000090acf6 [hex]). Compare with
TCP / IP
ADDRESS .
I
interface bus
E SBUS term for the channel that connects
VTRs, control panels, bus controllers, etc.
Uses 9-pin D connectors (but Thomson ver-
sion uses only 5-conductor cable). See
SERIAL
BUS .
IP multicast
Protocol for sending messages to multiple re-
ceivers at the same time on TCP/IP net-
works, by use of a multicast address.
L
level
Historically, a switcher matrix that carries
one type of signal, as determined by DIP
switch settings on crosspoint boards. Exam-
ple: level 1 for video, levels 2 and 4 for left
and right audio, etc. However, in 3-stage
switching systems this switch-set level is re-
ferred to as the “physical” level; and large
systems may require more than one physical
level to provide enough hardware for an en-
tire “logical” level (such as video). The Jupi-
ter Physical Switching menu refers to a
“logical level” that is actually the logical lev-
el number, this being the row number on
which the level is identified on the Switcher
Level Descriptions table. The logical level
name also appears on this table.
LOS
Loss of Signal.
M
MAC address
See HARDWARE ADDRESS .
MADI
Multiplexed Audio Digital Interface. matrix
bus