Available in two versions, Loop Isolator only and Isolating
Detector Base for Intelligent Detector mounting, the
Intelligent Isolators offer superior SLC loop protection. The
Intelligent Isolating Bases sense and isolate short-circuit
faults associated with AxisAX Series SLC loop wiring.
Under normal operation, the SLC loop power and
communications are passed through the Isolators. If a
short-circuit or an abnormally low line impedance occurs,
the isolator senses the drop in voltage and isolates the
negative supply of the SLC loop, in the direction of the
fault. The short-circuit fault will be indicated on the AxisAX
Series Intelligent Fire Alarm Control Panel’s graphical
display and on the isolators via an illuminated yellow
LED. If an intelligent detector is associated with an active
short-circuited isolating base, the detector will continue to
function properly. During the isolated condition the isolating
base will continually test the circuit, and when the fault is
rectifi ed will automatically restore the isolated SLC loop to
normal.
If an installation requires that not a single intelligent device
be lost in the event of a single short-circuit to an SLC loop
(“true” NFPA Style 7 circuit), every device on the AxisAX
Series SLC loop should be protected by an isolator. In
applications requiring minimal short-circuit protection (not
necessary to provide a “true” NFPA Style 7), isolated
groups of devices can be created with one Isolator
protecting a maximum group of twenty intelligent detectors/
devices. Each AxisAX Series Intelligent Fire Alarm Control
Panel’s SLC’s have built-in isolators.
Isolating Detectors Bases are specifi cally designed to
enable “one-way only” intelligent detector insertion without
the need for force. Simply insert the detector and rotate
clockwise. Incorporating a high degree of protection
against unauthorized removal of detectors, each base can
be locked to it’s associated detector by a mini-hexagonal
screw.
Both the Loop Isolator and the Isolating Dectector Bases
have a wide interior diameter for ease of access for
wiring to in-out terminals. Though not required for proper
operation, each unit has a dedicated earth connection
Features:
• Low-Profi le Design
• Built-in short circuit yellow LED Indicator
• 3” or 4” Square or Octagonal Electrical Box Mount
• “One-Way-Only” Detector Insertion
• Base to Detector Locking Mechanism
Listings and Approvals:
• ETL ANSI/UL 864 Listed: 3118002NYM-001B
• UL fi le: UROX.S7003 / ML fi le: S24460
• CSFM Approved: 7300-1713:106
• NYC MEA: 294-95-E-4
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