Toa NX-300, Installation Setup Manual

Page: 10 / 183

Chapter 1
SYSTEM SUMMARY
1-
[Rear]
1
2
E C H AUDIO OUTPUT E C H
AUDIO INPUT E C H E C H
GND
SIGNAL
LAN
AC ADAPTER DC INPUT
DC INPUT
10 9
CONTROL INPUT
CONTROL OUTPUT 1 2 3 4 5 8 C 6 7
1 2 3 4 5 8 C 6 7
ON
1 2 3 4 5 6 7 8
1 2 1 2
GND LIFT LINE
PAD MIC
NORMAL
12. Signal GND terminal
e sure this terminal is securely grounded.
Note: This terminal is not for protecti e ground.
13. DC power input terminal
A input.
14. AC adapter terminal
onnects to the optional A - A Adapter or
the e ui alent.
As for the usable adapter, consult your TOA
dealer.
15. Network connection terminal
onnects to 10 AS -T or 100 AS -TX net orks.
- thernet ack
16. Control output terminal (9, 10)
elay contact outputs ithstand oltage 30
, control current 0. A ma imum .
17. Control output terminal (1 – 8)
An open collector output ithstand oltage 30
, control current 0 mA ma imum .
18. Audio output terminal
0 d , under 00 , balanced type.
ro ide audio signals of line signal le el.
ot, old, arth shield
19. Cord clamp
inches and securely holds the A adapter cord
to pre ent its plug from detaching.
20. Control input terminal
No- oltage make contact input short-circuit
current under mA open-circuit oltage .
21. Audio input terminal
0 d for line signal le el, 0 d for microphone
signal le el, k , balanced unbalanced s itchable.
ecei e audio signals of microphone or line signal
le el.
ot, old, arth shield
22. DIP switch for equipment settings
sed hen performing audio input settings.
[Default DIP switch setting]
• it h
Ground lift selection switch
(NORMAL/GND LIFT)
A ground loop can potentially be created hen
the NX-300 is connected to other e uipment,
resulting in a hum noise. round loops can be
cut off by setting this s itch to N
T lo er
position . Settings are common to both Audio
nputs 1 and . This s itch is factory-preset to
NO A upper position .
• it hes
Not used.
These s itches are factory-preset to O lo er
position . Al ays keep them to the O lo er
position .
• it hes
Audio input pad setting switch (PAD)
nables or disables the audio input pad 1
d . hen the input le el is large, set the A
to ON upper position . These s itches are
factory-preset to O lo er position . S itch
A 1 corresponds to Audio nput 1 and
S itch A corresponds to Audio nput .
• it hes
Audio input level selection switch
(MIC/LINE)
Set these s itches to upper position hen
a microphone is connected, and to N lo er
position in other cases.
These s itches are factory-preset to
N
lo er position . S itch 1 corresponds to
Audio nput 1 and S itch corresponds
to Audio nput .
0 d 1
ON
1 2 3 4 5 6 7 8
GND LIFT LINE
PAD
1 2 1 2 MIC
NORMAL