K200-17-00
5
I56-2734-003
Figure 6: Example of Class B, Style Y NAC configuration with a single supply dedicated to a single NAC.
BASE ADDRESS
STATUS
INDICATORS
NAC
PS
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
PS
—
+
+
—
NAC
TO
P
BOT
–
+
+ N
AC
–
–
+
–
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
EXTERNAL
POWER
SUPPLY
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
A2143-10
RED
VIO
VIO
RED
BL
K
BL
K
(–)
(+)
+
–
47K
Figure 7: Example of Class B, Style Y 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
EXTERNAL
POWER
SUPPLY
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
+
–
(–)
(+)
VIO
VIO
RED
BLK
(–)
(+)
(–)
(+)
(–)
(+)
A2143-10
EOLR-1
A2143-10
47K
47K
*NOTE
1: EOL Relay Coil Connections must be made using
EOL Relay Connector Assemblies on T10–T16 in event that all
NACs on the PCB have dedicated supplies.
C0176-03
C0175-03
ply (figures 6–9 are typical). The EOL relay coil should
always be connected at the external power supply input
of the module which is connected to the ends of the wires
which are farthest from the power supply. The EOL relay
contacts should always be connected in series with the
NAC wiring of the same module. The EOL relay coil
should be connected across the PS+ (red wire) and PS-
(black wire) if it is connected at T0 – T5. The EOL relay
coil should be connected across adjacent pins (red – even
pin#, black – odd pin#), of the same connector, if T10
– T16 are used. If the supply is an audio amplifier then
the points, where the EOL relay coil would normally be
connected, should be connected to the amplifier supervi-
sion EOL device (figure 10 is typical).
All wiring must be in accordance with the NEC, NFPA
72 and all other applicable codes and standards. All exter-
nal power supplies must be voltage regulated with battery
back-up. All external power supplies, audio amplifiers,
EOL relays, and notification appliances must be UL
listed for fire protection signaling applications.