Notifier N100-ISO - Manual

DN-6994:B • 01/05/2012 — Page 1 of 2
N100-ISO(A)
Fault Isolator Module
for FireWarden Series Panels
Addressable
DN-6994:B • A1-370
General
The NOTIFIER N100-ISO(A) Fault Isolator Module is used
with FireWarden Series panels to protect the system against
wire-to-wire short circuits on the SLC loop. The N100-ISO(A)
should be placed between each device on the SLC loop to iso-
late a short-circuit problem between the modules. It is required
for true Style 7 operation 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 junction boxes (4.0"/10.16 cm square,
2.125"/5.398 cm deep).
• Integral LED blinks to indicate normal condition. Illuminates
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 iso-
late short circuit problems within a section of a loop so that
other sections can continue to operate normally. The N100-
ISO(A) supports a maximum of 25 devices in-between isola-
tors, except when using relay bases.
NOTE: LOADS PER RELAY BASE AND ISOLATORS/ISOLATOR
BASES: The maximum number of addressable devices between
isolators (or B224BIA isolator bases) is 25 devices.
B224RB relay bases draw more current than other intelligent
devices. When calculating the 25-device maximum, B224RB rep-
resents 2.5 DEVICES; see example on page 2.
NOTE: ON MAXIMUM NUMBER OF DEVICES: See the SLC
Manual (52304) for information on loss of addresses due to current
limitations. Each module or base added reduces the capacity of
address positions in an
SLC. All SLC field devices must have been
purchased after February 1995 to meet the aforementioned
requirements. If the
SLC field devices were purchased prior to
February 1995, each isolator used reduces the capacity of an SLC
by two address positions. Requirements differ as applied to relay
bases; see note above.
Specifications
• Operating voltage: 15 – 32 VDC (peak).
• Maximum current upon activation due to short circuit:
refer to the manual for the main FACP.
• Standby current: 450 μA maximum; N100-ISO(A) is not
isolating – relay closed.
• Temperature range: 32°F to 120°F (0°C to 49°C).
• Relative humidity: 10% to 93%.
• Weight: 5 oz. (150 grams).
• Dimensions: 4.5”H x 4.5”W x 0.25” D (11.43 cm H x
11.43 cm W x 0.635 cm D).
Construction
The face plate is made of off-white plastic. Module 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 below
four volts. Fault Isolator Modules should be spaced between
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 isolators immedi-
ately switch to an open circuit state and isolate the groups of
sensors between them. The remaining units on the loop con-
tinue to fully operate.
In Style 4 loops, the N100-ISO(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 continuously
during a short circuit condition.
The N100-ISO(A) Fault Isolator Module automatically restores
the shorted portion of the communications loop to normal.
Installation
• Mount on a standard junction box (4.0"/10.16 cm square)
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.
2243devices.wmf
isolator
module
or base
isolator
module
or base
detector module
25 DEVICES
N100-ISO(A)