Figure 13: Example of Class B, Style Y Audio NAC configuration.
N500-79-00
7
I56-1805-012
BASE ADDRESS
STATUS
INDICATORS
NAC
PS
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
TO
P
BOT
–
+
+
NA
C
–
–
+
–
PS
+
SLC
PS
—
+
+
—
+1
+2
+3
+4
+5
T1
1
T10
T0
+0
T12
T1
T2
T3
T4
T5
T13
T14
T15
T16
ENABLE POWER SUPPL
Y
MONIT
OR
DISABLE SHO
R
T
CIRCUIT
PROTECTION
—
+
+
—
A/B SELECT
DISABLE 1
DISABLE 2
DISABLE 3
0
1
2
3
4
5 6
7 8 9
0
7 8
6
5
4
3
2
1
9
10
11
12
13
14
15
HIGH-LEVEL RETURN
4-WIRE SUPERVISED
AUDIO
AMPLIFIER
TO NEXT
DEVICE
–
+
–
+
FROM PANEL OR
PREVIOUS DEVICE
–
+
–
+
SIGNAL LINE CIRCUIT 32 VDC MAX.
SEE PANEL INSTRUCTION MANUAL
FOR WIRE REQUIREMENTS.
(–)
(+)
POWER-LIMITED
AND SUPERVISED
TOP OF T0
SLC +
SLC –
SLC +
SLC –
(–)
(+)
+
–
+
–
A2143-10
47K
C0179-04
Figure 12: Example of Class A, Style Z NAC configuration with a single supply shared by 2 NACs.
BASE ADDRESS
STATUS
INDICATORS
NAC
PS
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
TO
P
BOT
– +
+
NA
C
–
– +
–
PS
+
SLC
PS
—
+
+
—
+1
+2
+3
+4
+5
T1
1
T10
T0
+0
T12
T1
T2
T3
T4
T5
T13
T14
T15
T16
ENABLE POWER SUPPL
Y
MONIT
OR
DISABLE SHOR
T
CIRCUIT
PROTECTION
—
+
+
—
A/B SELECT
DISABLE 1
DISABLE 2
DISABLE 3
0
1
2
3
4
5 6
7 8 9
0
7 8
6
5
4
3
2
1
9
10
11
12
13
14
15
REMOVE SHUNT FOR CLASS A.
TO NEXT
DEVICE
–
+
–
+
FROM PANEL OR
PREVIOUS DEVICE
–
+
–
+
SIGNAL LINE CIRCUIT (SLC) 32 VDC MAX.
SEE PANEL INSTRUCTION MANUAL
FOR WIRE REQUIREMENTS.
(–)
(+)
POWER-LIMITED
AND SUPERVISED
TOP OF T0
EOLR-1
(TYP)
RED
VIO
VIO
RED
BLK
BLK
(–)
(+)
EXTERNAL
POWER
SUPPLY
+
–
(–)
(+)
(–)
(+)
C0819-02
