Notifier ISO-X User Manual

Fault isolator module

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DN-7068 • 11/16/05 — Page 1 of 2

Face
Plate

S635 (UOXX)

BP6480 (AMCX, APOU)

GENERAL

The NOTIFIER ISO-X Fault Isolator Module is used with the NFS-
3030, AM2020, AFP1010, NFS-640, AFP-400, AFP-300, AFP-200,
AFP-100 and System 5000 (equipped with an AIM-200 module) to
protect the system against wire-to-wire short circuits on the SLC
loops.

FEATURES

• Powered by SLC loop directly, no external power required.

• Mount in standard 4.0" (10.16 cm) square (2.125" [5.398 cm]

deep) junction boxes.

• Integral LED blinks to indicate normal condition. Illuminates

steady when short circuit condition is detected.

• High noise (EMF/RFI) immunity.

• Wide viewing angle of LED.
• SEMS screws with clamping plates for ease of wiring.

• Opens SLC loop automatically on detection of short, prevent-

ing the short from causing failure of the entire loop.

• Automatically resets on correction of short.

• Supports Style 4, 6, or 7 wiring.

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 normally. The ISO-X supports a
maximum of 25 devices in-between isolators, except when using
relay bases or IPX multisensors.

NOTE ON LOADS PER RELAY BASE AND MULTISENSOR
DETECTORS/ISOLATORS/ISOLATOR BASES:

The maximum number of addressable devices between isolators
(or B224BI isolator bases) is 25 devices.

B224RB relay bases and IPX-751 multisensor detectors draw
more current than all other intelligent devices.

When calculating

the 25-device maximum:

B224RB represents

2.5 DEVICES.

IPX-751 in a standard base represents

12 DEVICES.

IPX-751 in a relay base represents

14.5 DEVICES.

All other addressable devices represent

1 DEVICE.

See examples on page 2.

NOTE ON MAXIMUM NUMBER OF DEVICES: Up to 100 ISO-X
modules and/or bases can be used per Signaling Line Circuit (SLC)
without loss of additional module addresses due to current limita-
tions. Each module or base added beyond 100 units reduces the
capacity of an SLC by two address positions. All SLC field de-

ISO-X
Fault
Isolator
Module

ISO

ISO

ISO

ISO

ISO-----X

X

X

X

X

Fault Isolator Module

Fault Isolator Module

Fault Isolator Module

Fault Isolator Module

Fault Isolator Module

November 16, 2005

Section: Intelligent Addressable Devices

DN-7068

2243isox.wmf

6724face.wmf

vices must have been purchased after February 1995 to meet
the aforementioned requirements. If the SLC field devices were
purchased prior to February 1995, each ISO-X used reduces the
capacity of an SLC by two address positions. Requirements
differ as applied to relay bases

(see note above).

2243dia1.wmf

This document is not intended to be used for installation purposes. We try to keep our
product information 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 NOTIFIER. Phone: (203) 484-7161 FAX: (203) 484-7118

12 Clintonville Road, Northford, Connecticut 06472

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