Cadac R-Type - Manual (Page 123)

GLOSSARY-V
Revision R2005-2 R-Type
electronically balanced input An electronic amplifier stage used to amplify the
difference voltage between two input signals. In
the ideal case the output is entirely independent
of the individual signal levels - only the differ-
ence matters. This type of circuit is also known
as a differential amplifier. When the input signal
is fed from a balanced line, the common mode
rejection to interference signals is extremely
good. In other words, a good differential ampli-
fier has a high common mode rejection ratio
(CMRR).
electronically balanced output An electronic amplifier stage that produces two
identical output signals, except that one output
signal has the opposite polarity to the other.
EMC Electro-magnetic compatibility. A series of regu-
lations imposed by member countries of the
European Union on manufacturers of electrical
and electronic equipment, to control electro-
magnetic emissions and susceptibility. The par-
ticular standard for audio equipment and sys-
tems is: EN55103-1 (emissions) and EN 55103-
2 (immunity).
Enter End command of a computer operation.
Enter button Located either on the CCM or on a separate
keyboard, this button is used to execute the
command described previously.
EQ PRE INS Input channel feature allowing the equalizer to
be put in circuit before the Channel Insert.
equalizer Input channel stage allowing the frequency
response to be altered within ±18dB at four dif-
ferent frequencies.
error log Feature of the CCM that allows the storage of
fault information and the date/time when they
occurred.
Escape (ESC) Button on the CCM or keyboard function allow-
ing an operation to be interrupted and return to
the top of the menu tree.
Event A function controlled by the CCM, which can be
programmed as part of a cue. Each of the 8
events available per cue are associated with a
relay which can be programmed to switch ‘on’,
‘off’ or ‘pulse’.
EXT I/P A connector allowing an external signal to be
plugged into the Oscillator module.
external relay switched equipment See Event above.
Fader Control Module Located below the Central Control Module, this
module controls assignments of channels to DC
Masters and MUTE groups. It also has facilities
for motorized faders when these are imple-
mented.
fader display Alphanumeric display on the DC Master faders
showing the allocated number for each DC Mas-
ter.
fader panel Located below the input/output channel mod-
ules, the fader panel contains the fader itself and
LEDs for indicating DC or MG assignment. It