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MEA DF-52389 • 07/14/04 — Page 1 of 2
GENERAL
The Fire•Lite Alarms I300(A) Fault Isolator Module is
used with the MS-9200, MS-9200UD, and MS-9600 to pro-
tect the system against wire-to-wire short circuits on the
SLC loop. The 1300(A) should be placed between each
device on the SLC loop, to isolate a short-circuit problem
between the modules. It is required for true Style 7 opera-
tion so that other devices can continue to operate normally
in the event of a short-circuit on the SLC.
FEATURES
• Powered by SLC loop directly, no external power required.
• Mounts in standard 4" (10.16 cm) square, 2.125" (5.3975
cm) deep junction boxes.
• Integral LED blinks to indicate normal condition. Illumi-
nates steady when short circuit condition is detected.
• High noise (EMF/RFI) immunity.
APPLICATIONS
The Fault Isolator Modules should be spaced between
groups of sensors in a loop to protect the rest of the loop.
Use to isolate short circuit problems within a section of a
loop so that other sections can continue to operate nor-
mally. The 1300(A) supports a maximum of 25 devices in-
between isolators, except when using relay bases.
NOTE ON LOADS PER RELAY BASE
AND ISOLATORS/ISOLATOR BASES:
The maximum number of addressable devices between isolators
(or B224BI isolator bases) is 25 devices.
B224 relay bases draw more current than other intelligent devices.
When calculating the 25-device maximum, B224RB represents
2.5 DEVICES. See example on page 2.
NOTE ON MAXIMUM NUMBER OF SLC DEVICES: Each isola-
tor module reduces the capacity of an SLC by two address posi-
tions. Requirements differ as applied to relay bases (see note
MEA
3-94-E
Face plate for I300(A)
6289face.wmf
2243isox.wmf
I300(A)
S2424
(non “A” suffix)
CS68
(“A” suffix only)
7300-0075:159
California
State Fire
Marshal
52389d1.wmf
I300(A)
I300(A)
I300(A)
I300(A)
I300(A)
Fault Isolator Module
Fault Isolator Module
Fault Isolator Module
Fault Isolator Module
Fault Isolator Module
DF-52389 • E-940
July 14, 2004
Section: Addressable Devices
www.firelite.com
Fire•Lite® Alarms is a Honeywell company.
This document is not intended to be used for installation purposes. We try to keep our product informa-
tion up-to-date and accurate. We cannot cover all specific applications or anticipate all requirements.
All specifications are subject to change without notice.
For more information, contact Fire•Lite Alarms, One Fire-Lite Place, Northford, Connecticut 06472. Phone:
(800) 627-3473, Toll-Free FAX: (877) 699-4105.
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25 DEVICES Page 2 of 2 — DF-52389 • 07/14/04
above).
SPECIFICATIONS
• Operating voltage: 15 – 28 VDC (peak).
• Maximum current upon activation due to short cir-
cuit: refer to the manual for the main FACP.
• Standby current: 450 µA maximum; 1300(A) is not iso-
lating – relay closed.
• Temperature range: 32°F to 120°F (0°C to 49°C).
• Relative humidity: 10% to 93%.
• Weight: 150 grams (5 oz.).
CONSTRUCTION
The face plate is made of off-white plastic. Includes yellow
LED indicator that pulses when normal and illuminates
steady when a short is detected.
OPERATION
Automatically opens circuit when the line voltage drops be-
low four volts. Fault Isolator Modules should be spaced be-
tween groups of addressable devices (maximum 25, see
notes on page 1) in a loop to protect the rest of the loop. If
a short occurs between any two isolators, then both isola-
tors immediately switch to an open circuit state and isolate
the groups of sensors between them. The remaining units
on the loop continue to fully operate.
In Style 4 loops, the 1300(A) is generally used at each T-
tap branch, to limit the effect of short circuits on a branch
to the devices on that branch. The LED indicator is on con-
tinuously during a short circuit condition.
The 1300(A) Fault Isolator Module automatically restores
the shorted portion of the communications loop to normal
condition when the short circuit condition is removed.
INSTALLATION
• Mount on a standard 4" (10.16 cm) mounting junction
box which is at least 2.125" (5.398 cm) deep.
• Terminal screws are provided for “in and out” wiring.
• Installation instructions are provided with each module.
• Surface-mount box is available as an option.
ARCHITECTURAL/
ENGINEERING SPECIFICATIONS
Fault Isolator Modules shall be provided to automatically
isolate wire-to-wire short circuits on an SLC loop. The Fault
Isolator Module shall limit the number of modules or detec-
tors that may be rendered inoperative by a short circuit
fault on the SLC Loop. If a wire-to-wire short occurs, the
Fault Isolator Module shall automatically open-circuit (dis-
connect) the SLC loop. When the short circuit condition is
corrected, the Fault Isolator Module shall automatically re-
connect the isolated section of the SLC loop. The Fault
Isolator Module shall not require any address-setting, and
its operations shall be totally automatic. It shall not be nec-
essary to replace or reset an Fault Isolator Module after its
normal operation. The Fault Isolator Module shall mount in
a standard 4" (10.16 cm) deep electrical box, in a surface-
mounted backbox, or in the Fire Alarm Control Panel. It
shall provide a single LED which shall flash to indicate that
the Isolator is operational and shall illuminate steadily to
indicate that a short circuit condition has been detected
and isolated.
PRODUCT LINE INFORMATION
1300
Isolator module.
I300A
Isolator module, ULC-Listed.
SMB500 Optional surface-mount backbox.
EXAMPLE OF DEVICE COUNT
(see notes under Applications on page 1)
52389d2.wmf
,$
0RGXOH
module
detector with
standard base
detector with
relay base
COUNTS AS ...




+
+
=
(less than 25 total)
STARTS
NEXT COUNT
,$
0RGXOH
(2.5 + 1)