D250-02-00
3
I56-2814-003R
Figure 4. Wiring diagram:
Detector Activates Sounder Base(s) - (Complies with UL268)
UL has approved grouping for up to six B501BHT-2 base with
horn units. When wired as a group, any detector in the group
that has its LED’s latched on by the panel will cause other
B501BHT-2 units in the group to sound. This type of “local”
grouping is accomplished by wiring the grouped devices to-
U.L.
LISTED
EOL
RESISTOR
47K
U.L.
LISTED
EOL
RELAY
24V
5
4
1
2
3
5
4
1
2
3
5
4
1
2
3
(+) SLC
(–) SLC
(–) POWER
(+) POWER
U.L. LISTED COM
P
A
TIBLE
CONTROL
P
ANEL
EXTERNAL 24V SUPPL
Y
CLASS A OPTIONAL WIRING
CLASS A OPTIONAL WIRING
*GROUPING OF UP TO 6 MODEL B501BHT-2 TEMPORAL TONE SOUNDER BASES.
OPTIONAL SOUNDER INTERCONNECT
*
(+) SLC
(–) SLC
SUP
(–)
SUP
(+)
INTELLIGENT
MONITOR MODULE
gether using terminal 5, Sounder Base Interconnect, as shown
in the diagram.
NOTE:
Since a local grouping of horns is not supervised, the
groups can only be used as a supplementary evacuation system.
It is not acceptable to group horns for primary alarm signaling.
C0474-05
UL LISTED
COMPATIBLE
CONTROL
PANEL
INTELLIGENT
RELAY
MODULE
FIRST
SOUNDER
BASE
(+) POWER
(–) POWER
LAST
SOUNDER
BASE
(–) SLC
(+) SLC
UL
LISTED
EOL
RELAY
24V
UL LISTED
EOL
RESISTOR
47k
UL LISTED
24V SUPPLY
SLC
THIS IS A STANDARD RELAY
MODULE CONFIGURED TO
REVERSE THE POWER
OPTIONAL SOUNDER INTERCONNECT
*
†
†
(+) SLC
(–) SLC
SUP
(–)
SUP
(+)
INTELLIGENT
MONITOR MODULE
(+) SLC
NO 1
NO 2
NC 2
COMM 2
COMM 1
NC 1
(–) SLC
*
GROUPING OF UP TO 6 MODEL B501BHT-2 TEMPORAL TONE SOUNDER BASES.
Figure 5. Wiring diagram:
Detector Activates Sounder Base(s); Intelligent Relay Module Ac-
tivates All Sounder Bases - (Complies with UL 268 and UL 464)
UL has approved grouping for up to six B501BHT-2 base with
horn units. When wired as a group, any detector in the group
that has its LED’s latched on by the panel will cause other
B501BHT-2 units in the group to sound. This type of “local”
C0973-01
grouping is accomplished by wiring the grouped devices to-
gether using terminal 5, Sounder Base Interconnect, as shown
in the diagram.
NOTE:
Since local grouping of horns is not supervised, the
groups can only be used as a supplementary evacuation system.
It is not acceptable to group horns for primary alarm signaling.
