Specifications

ManualsBrandsEnvoy ManualsFire Alarms1-4 Zone Conventional Fire Alarm Control Panels

Diagrams are for reference only.

Consult the appropriate installation sheet for wiring details.

SIGA-IM Fault Isolator Module

The SIGA-IM Isolator Module enables part of the Signature data loop to continue

operating should a short circuit occur. The module can be wired into a Class A data

loop at any point.

MODULE (TWO-GANG STANDARD MOUNT)MODULE (TWO-GANG STANDARD MOUNT)

MODULE (TWO-GANG STANDARD MOUNT)

SIGNATURE MODULES

Green LED

(normal - flashing)

TB1

DATA OUT (+)

DATA OUT (-)

DATA IN (+)

DATA IN (-)

From Signature Loop

Controller or Previous

Device

To Next Device or EOL

Resistor supplied with

UL/ULC Listed Control Panel

For maximum wire resistance,

refer to the appropriate

manufacturer’s documentation.

Max. #12 AWG (2.5mm²)wire.

Refer to Signature Loop

Controller Installation Sheet

for wiring specifications.

This module should be used

only with Class A wiring.

Maximum circuit resistance

between isolators is 6 ohms.

All wiring is power-limited

and supervised.

This part is removed

from circuit

SIGA-IMSIGA-IM

SHORT

CIRCUIT

Typical Class A Configuration

Data Return

Signature Loop Controller

Data Out