Autronica Autro Safe User Manual

Dual Safety Installation
Installation Handbook, AutroSafe Interactive Fire Detection System, Release 4, 116-P-ASAFE-INSTALL/DGB Rev. I, 2014-04-01,
Autronica Fire and Security AS
Page 53
11. Dual Safety Installation
11.1 Dual Safety System Overview
An AutroSafe system using the Dual Safety concept consists of a
Primary System and a Secondary System. The purpose of the
concept is to ensure that the Secondary System takes over the control
of the detection loops if the Primary System or parts of it is lost for any
reason.
To achieve this, the redundant loop control interface AutroKeeper
BN-180 is required.
An AutroMaster can communicate with both the Primary and
Secondary System via AutroCom.
The connections that are to be used between the Primary/Secondary
System and the detection loops depend on distances and the number
of Loop Driver Modules/detection loops used.
11.2 Rules of Thumb
Note that these rules of thumb goes for both systems in a Dual Safety
configuration:
 Up to 6 Loop Driver Modules can be connected to one I/O stack
 Up to 12 Loop Driver Modules can be connected to one panel
 Up to 6 Loop Driver Modules can be connected to one panel
directly (one I/O stack) if the cable length between the panel’s main
board AL_Com+ port and the I/O stack is less than 3 meters.
 Up to 12 Loop Driver Modules can be connected to one panel
through AutroFieldBus (up to 12 I/O stacks). This solution has to
be used if the cable length between the panel’s main board and the
I/O stack exceeds 3 meters, but can also be used for cable lengths
less than 3 meters.

Autronica Autro Safe Specifications

General

Brand	Autronica
Model	Autro Safe
Category	Smoke Alarm
Language	English