Crest Audio CC-IPE Manual de usuario
CC-IPE Basic Input with Priority Page
Product Information
The CC-IPE Module fits in the Input Processing bay located on
the rear panel of Crest Audio CKS, CKV & CKX Series Power
Processing amplifiers. It includes provision for external source
switching from the A & B program inputs to a line level page
input. A DC voltage ranging from +5 to +24 VDC (at 40mA) will
enable a relay that switches in the external paging signal.An inter-
nal jumper on the module can be used to set whether the page
input is enabled when voltage is applied, or enabled when voltage
is not applied to the relay allowing the use of normally open or
normally closed switches to activate the page function. An inter-
nal jumper selects between overall level gains of X20 (26 dB), X40
(32 dB), or constant sensitivity for full output at 0dBu (.775V) in.
The standard factory setting is for X40 (32dB). Individual program
level attenuators for channels A & B are provided on the panel
with removable knobs for security. The Page audio level can also
be controlled by independentA& B channel level attenuators that
are mounted internally and can be adjusted via access holes in the
module panel.
Features:
• Balanced input barrier strip connectors for channels A & B plus Page
• 5mm 2-pin Phoenix connector for Page-enable signal
• Removable attenuator knobs prevent tampering.
Internal Features:
• Jumper-selectable gain of X20 (26 dB), X40 (32 dB, factory
setting), or constant sensitivity for full output at 0dBu (.775V) in.
• Adjustable Page level trimmers for Channels A & B.
• Jumper-selectable normally open/normally closed relay.
INPUT MODULE
FOR CK FAMILY
POWER PROCESSING AMPLIFIERS
Page Signal
Signal A Signal B
Input Input
CC-IPE connections
Power
Processing
Modules
Architects and Engineers Specifications - CC-IPE.
The module shall plug in to CrestAudio CKS, CKV and CKX Power Processing amplifiers in
the Input Processing bay. Barrier strip input connections shall be provided which feed two
electronically balanced inputs.A page input barrier strip, balanced line level feed shall be acti-
vated by the page enable relay. This in turn shall be activated via the application of +5 to +24
VDC at the page enable connector.An internal jumper shall provide the option of inverting the
function of the relay so that normally open or normally closed switches can be used to activate
the page function. Two removable-knob gain pots shall be provided that control the level of
each input. An internal input sensitivity/voltage gain jumper shall be provided with selections
of 0dBu, X20 and X40. The module shall be designated the Crest Audio model CC-IPE.
Basic Input with Priority Page
Vosc Input for Load Monitor
CH A Power Amp
CH B Power Amp
Level
Page
Input
CH A
In
+
-
G
CH
B
In
+
-
G
Page
Enable Relay
Gain Jumper
Gain Jumper
BLOCK
DIAGRAM
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
TEL: 201.909.8700 FAX: 201.909.8744
http://www.crestaudio.com
Printed in USA
CC-IPE Input Processing Module
PRELIMINARY SPECIFICATIONS
Input impedance: 25kΩ
Signal-to-noise ratio: 105dB
Common mode rejection: 100dB typical
Frequency response: 20Hz-20kHz
Page input frequency response: TBD
Programmable gain range: 0 to -83dB
Voltage gain/input sensitivity: X20 (26 dB),
X40 (32 dB),
or constant sensitivity for full output at 0dBu (.775V)
Connectors:
Balanced inputs(Channel A, Channel B, and Page)
on barrier strip connectorwith 0.325" (8.3mm) screw center,
0.270" (6.9mm)
lug space, 5mm 2-pin Phoenix page
enable connector,Page relay switching requirement:
+5 to +24 VDC, 40ma (externally supplied).
Controls: 2 gain attenuators
(w/removable knobs),
2 page level attenuators
(trimmers adjustable via access holes in panel)
v. 1.1 5/21/98
Crest Audio reserves the right to make improvements in manufacturing or design which may affect specifications.
Crest Audio specification literature is available in downloadable PDF file format; visit our website at http://www.crestaudio.com.
A3300050
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