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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-
(+) SLC
4
(–) SLC
(–) POWER
(+) POWER
*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"
UL LISTED
COMPATIBLE
CONTROL
PANEL
(+) SLC
SLC
(–) SLC
(–) POWER
UL LISTED
24V SUPPLY
(+) POWER
†
THIS IS A STANDARD RELAY
MODULE CONFIGURED TO
*
GROUPING OF UP TO 6 MODEL B501BHT-2 TEMPORAL TONE SOUNDER BASES.
D250-02-00
CLASS A OPTIONAL WIRING
OPTIONAL SOUNDER INTERCONNECT
5
3
2
1
CLASS A OPTIONAL WIRING
†
INTELLIGENT
RELAY
MODULE
SOUNDER
COMM 2
(–) SLC
NC 2
(+) SLC
NO 2
COMM 1
NC 1
NO 1
REVERSE THE POWER
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.
*
4
5
3
2
1
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.
OPTIONAL SOUNDER INTERCONNECT
FIRST
SOUNDER
BASE
3
4
5
3
2
1
*
LAST
BASE
INTELLIGENT
MONITOR MODULE
(+) SLC
(–) SLC
U.L.
LISTED
EOL
RESISTOR
47K
U.L.
LISTED
EOL
RELAY
24V
C0474-05
INTELLIGENT
MONITOR MODULE
(+) SLC
(–) SLC
UL LISTED
EOL
RESISTOR
47k
UL
LISTED
EOL
RELAY
24V
C0973-01
I56-2814-003R
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