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Panasonic Electric Works Fire & Security Technology Europe AB 

 

Jungmansgatan 12, SE-211 19 Malmö, Sweden 

Tel: +46 (0)40 697 70 00 • Fax: +46 (0)40 697 70 99 

[email protected] • www.panasonic-fire-security.com 

 

Fire alarm systems 

Analog base 

with isolator 

4313 

 

Common base for the different analog detectors 

 

Built-in short circuit isolator 

 

Easy connections incl. output for external LED 

Common base 

The analog base 4313 is connected to a 
COM loop.  Any analog heat, smoke and 
multi detector types 33xx / 430x can be 
plugged in the base.  (For required type of 
base, see Product Leaflet for the detector 
type respectively.) 

Short circuit isolator 

The analog base 4313 has a built-in short 
circuit isolator with the same functions as 
the Addressable short circuit isolator 4370. 

The short circuit isolator will divide the 
COM loop into segments.  A segment is the 
part of a loop between two isolators or 
between one isolator and the c.i.e.  In case of 
a short circuit on a COM loop, only the 
affected segment will be disabled, i.e. the 
number of disabled loop units is minimised.  
All other loop units will continue to work 
normally.  Up to eight isolators (4313 and/or 
4370) can be connected on each COM loop. 

Easy connection 

The base has screw terminals for the COM 
loop (in/out) and an external indicator 
(LED), e.g. 2218. 

Label holder 

An optional label holder could be mounted 
in the base (in the label holder recess) and is 
intended for a label showing "zone-address" 
etc.  Can be read also when the detector is 
plugged in the base and is ceiling mounted. 

COM loop address 

The COM loop address for the isolator is set 
with an Address setting tool 3314, which is 
also used to set the mode: 

NORMAL mode

:  Short circuit isolator 

4313 in system 

EBL128

2330 mode

:  Short circuit isolator 4313 

(2370/4370 in Win512) in system 

EBL512

2312 mode

:  Not used for 4313. 

Miscellaneous 

The base has an address label (Al) where the 
detector's and isolator's COM loop addresses 
can be written. 

Individual fault signal is obtained if wrong 
type of detector (compared with the 
programming) is plugged in the base or if 
the detector is unplugged.  A short circuit or 
a single break (cut-off) on the loop will 
generate a fault and a fault message, e.g. 
short circuit or break, COM loop number 
and between which isolators. 

For more information regarding detector 
types, connections, etc. see Planning 
Instructions and connection diagrams for the 
system respectively. 

Product applications 

Used in the systems 

EBL512

 / 

128

 to 

increase the COM loop safety. 

The base is intended for indoor use and in 
dry premises. 

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