ESL Panels

ESL1500 Series Fire Alarm Control Panels
provide one (1501), three (1503) or five
(1505) conventional initiating circuits and
two alarm indicating circuits. All initiating
and indicating circuits supervise
conventional two- or four-wire, Class “A” or
Class “B” wiring loops. All zone inputs and
outputs are power limited.
The basic control panel, Model 1501,
includes the system enclosure with
removable door, and the Basic Master Board
(BMB). The BMB provides all functions
required for a single zone system including:
an integral power supply (24VDC), battery
charger, battery supervision circuitry, AC
brown-out circuitry, system control switches,
operating and diagnostic indicators, one man
walktest, alarm verification, and auxiliary
alarm and system trouble dry relay contacts.
The Models 1503 and 1505 include one or
two dual Zone Expander Modules
(1500-ZEM), respectively.
Model numbers:
1501, 1503, 1505.
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