Instruction manual

Manual or NexSys-Compatible Sequential Turn-On/Turn-Off.
CK family amplifiers fitted with a NexSys-compatible NC Power/Output Module (NC-STI, NC-
SAC, NC-SLM) may be powered up via NexSys OR with a manual switch closure. If NexSys is
employed, the STO delay time is also software-controllable.
Note: when using NexSys control, hard-wiring for manual switch closure between ampli-
fiers should be used cautiously. If the switch closure output is wired up, it WILL cause the
next amp to switch, regardless of which source (hardware switch or NexSys STO) has ini-
tiated the command.
The modules (and the non-NexSys compatible CC-SIO) feature a 6-pin connector providing a 3-
wire input from switch closures (or from a CK family amplifier) and an opto-isolated 3-wire output
to another CK amplifier. The 3-wire signals are: ON, OFF, and COM. To initiate either the ON or
OFF function manually, simply provide a closure from the proper signal line to COM; after a time
delay of approximately 200ms, the closure is echoed on the 3 isolated output signal pins to initiate
the turn-on function in ‘downstream’ amplifiers. The on/off closures can be either momentary or
constant contact.
Output
Com
On
Off
Com
On
Off
In
Out
Output
Com
On
Off
Com
On
Off
In
Out
PC
®
NC-NXS
NC-NXS
Off
On
Manually Initiated (hard-wired) Sequential
Turn-On/Off using NexSys-compatible
Power/Output Modules
NexSys-Initiated Sequential Turn-On/Off
using NexSys-compatible Power/ Output
Modules (unlimited # of amplifiers)