Crest audio CC-IPE DATASHEET

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. ADC voltage ranging from +5 to +24 VDC (at 40mA) will enable a relay that switches in the external paging signal. An inter­nal 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 inter­nal 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 independent A& 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 Crest Audio CKS, CKVand CKX Power Processing amplifiers in the Input Processing bay. Barrier strip input connections shall be provided which feed two electronically balanced inputs. Apage input barrier strip, balanced line level feed shall be acti­vated 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: 25k
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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