Notifier ISO-X - Manual (Page 2)

Page 2 of 2 — DN-7068 • 11/16/05
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 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 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 ISO-X 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 ISO-X 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.
SPECIFICATIONS
Operating voltage: 15 – 32 VDC (peak).
Current range: 5 mA for LED latched in alarm.
Standby current: 400 µA maximum, plus supervision current.
Pulsing current: 30 mA for 15 mS (CMX-1, CMX-2, FCM-1).
Temperature range: 32°F to 120°F (0°C to 49°C).
Relative humidity: 10% to 93%.
Weight: 150 grams (5 oz.).
PRODUCT LINE INFORMATION
ISO-X Isolator Module.
SMB500 Surface Mount Backbox.
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 detectors 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 auto-
matically open-circuit (disconnect) the SLC loop. When the short
circuit condition is corrected, the Fault Isolator Module shall
automatically reconnect 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 necessary
to replace or reset an Fault Isolator Module after its normal
operation. The Fault Isolator Module shall mount in a standard 4.0"
(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.
EXAMPLES OF DEVICE COUNTS
(see notes under Applications on page 1)
EXAMPLE 1
EXAMPLE 2
2243dia2.wmf
2243dia3.wmf
EXAMPLE 3
2243dia4.wmf