Load Monitoring, Sequential Turn-On/Off, NexSys power supply,
AC Voltage & Current Monitor, Audio Return
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
N C - S L M
P o w e r / O u t p u t M o d u l e
B L O C K D I A G R A M S
v. 2.1
4/7/97
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.
Contact Crest Audio Inc. for more information. NexSys is a registered trademark of Crest Audio Inc. ©1996 Crest Audio Inc.
AUDIO
RETURN
Load Monitor
ckt
FROM
POWER AMP A
V load
I load
Audio Return Enable
CH SEL/GAIN
CH A OUT
CH B OUT
FROM
POWER AMP B
AUDIO
RETURN
OUT
NexSys
Module Bus
OSC
OSC Out To
Amp Input
NexSys
Module
SEQUENTIAL
TURN-ON
AC Detect
TO AMPLIFIER
POWER SUPPLY
V line
I line
ON
COM
OFF
ON
COM
OFF
OUT
IN
NexSys Module Bus
MAINS
Opto
NexSys
Digital Supply
I/D
ckt
NexSys On/Off
S P E C I F I C AT I O N S
Pass-thru sequence time:
200ms
Connectors:
5mm 6-pin
Phoenix connector
(STO)
5mm 3-pin Phoenix audio return
connector (600
Ω
source impedance;
40dB of attenuation driven into 600
Ω
,
referenced from speaker terminals)
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.
*A3300032*
C O N T R O L O P T I O N S
The following NC-SLM parameters
can be controlled/monitored via
hard closure or NexSys software.
Hard closure:
Sequential Turn On/Off activation
NexSys computer control:
Sequential Turn On/Off initiation &
delay times, load monitor, monitor-
ing of audio return, AC mains volt-
age, current and wattage.
