Crest audio CC-SIO DATASHEET

Power
Processing

POWER/OUTPUT MODULE

Modules

FOR CKS, CKV & CKX SERIES

POWER PROCESSING AMPLIFIERS

CC-SIO Sequential Turn-On/Off (STO); self powered prior to AC Mains closure

Product Information

The CC-SIO Module fits in the Power/Output bay located on the rear
panel of Crest Audio CKS, CKV & CKX Series Power Processing
amplifiers. It provides Sequential Turn-On/Off (STO) capability without
the need for an external VDC supply. It is similar in operation to the
CC-STL (offered as standard with all CKS, CKV & CKX Series ampli­fiers) but is self-powered prior to the AC mains closure and optically
isolated from other amplifiers in the turn-on chain. The feed thru turn-on
delay is fixed at approximately 200ms to reduce inrush current demands
to the AC mains source. Should any amplifier in the chain fitted with a
CC-SIO be turned off, or its circuit breaker tripped, it will not effect oth­ers during STO.

Although not NexSys
STO chain will accept turn-on commands generated from NexSys com­patible NC-STI, NC-SAC and NC-SLM Power/Output Modules
installed in other amplifiers.

A three-position front panel power switch is fitted to all CKS, CKV &
CKX amplifiers. This must be in the “Remote” position for the CC-SIO
to initiate an STO sequence.

Features

• Amplifier output terminals on barrier strip with 0.44" (11mm) screw spacing and 0.32" (8mm) lug spacing

• 5mm 6-pin Phoenix connector for sequential turn-on/off (STO) connection

• Signal chassis ground lift jumper

CC-SIO connections

®

compatible, CC-SIO equipped amplifiers in the

Sequential T urn-On/Off

connection to other

amplifiers

Off

Com

On

Sequential

Turn-On

In

On

On

Off

Com

Com
Off
On
Com
Off

Out

Model
CC-SIO

LISTED 8B42

COMMERCIAL

POWER

AMPLIFIER

120V~60 Hz 15A

USA-specification amplifier shown

Architects and Engineers Specifications - CC-SIO.

The module shall plug into a Crest Audio CKS or CKV Power Processing amplifier in the
Power/Output bay. The module shall provide non-NexSys initiated sequential turn-on/off
capability for the host CKS and/or CKV amplifier and others in the chain. A 5mm six pin
Phoenix connector shall be provided to receive and pass on the turn-on initiation signal.

-

-

CLASS 2

WIRING MAY

BE USED

Output

–

A

+

+

B

–

Signal
Ground
Lift
Jumper

+

-

-

+

Output Power

Output Power

Model

@70.7V

Name

CKV 100
CKV 200
CKV 400

CKV 800
CKV 1600
CKV 2400

50W
100W
200W
400W
800W

1200W

Designed & manufactured in the USA by:

Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

A closure across two of the Phoenix connector terminals on the first amplifier in the chain
shall initiate the turn-on/turn-off sequence. Disconnection of AC power to any number of
amplifiers in the chain shall not affect the turn-on sequence capability of all other amplifiers
in the chain. The module shall provide outputs for both amplifier channels on barrier strip
connectors and a signal ground lift jumper. The module shall be designated the Crest Audio
model CC-SIO.

Model
Name

CKS 100
CKS 200
CKS 400
CKS 800

CKS 800-2
CKS 1200-2
CKS 1600-2

@8Ω/Ch.

50W
100W
200W
400W
400W
600W
800W

Model
CC-BLK

BLOCK DIAGRAM

CC-SIO Power/Output Module

Sequential Turn-On/Off (STO); self powered prior to AC Mains closure

MAINS

To
Next
Amp

From
Amp
or
Toggle
or
Momentary

ON
COM
OFF

ON
COM
OFF

TO AMPLIFIER
POWER SUPPLY

OUT

Opto

SEQUENTIAL
TURN-ON

IN

SPECIFICATIONS

Pass-thru sequence time: 200ms
Connectors: 5mm, 6-pin Phoenix connector (STO)

Amplifier output barrier strip* with 0.44" (11mm) center and 0.32" (8mm) lug space

Controls: Signal chassis ground lift jumper

*See CKS / CKV power amplifier operator’s manual for power output specifications.

Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification. Crest Audio specification literature is available in electronic form to qualified users.

v. 2.1 4/7/97

Contact Crest Audio Inc. for more information. NexSys is a registered trademark of Crest Audio Inc. ©1996 Crest Audio Inc.

100 Eisenhower Dr., Paramus NJ 07652 USA

*A3300018*

Crest Audio Inc.

TEL: [phone] FAX: [phone]

http://www.crestaudio.com

Printed in USA