EST I
NTERNATIONAL
Issue 5
Literature Sheet #85001-0269
Page 3 of 4
Standard Detector Base, SIGA-SB, SIGA-SB4
Typical Wiring
The detector mounting bases accept #18 AWG (0.75mm
2
), #16 (1.0mm
2
), #14 AWG (1.5mm
2
), and #12 AWG (2.5mm²) wire sizes.
Note: Sizes #16 AWG (1.0mm
2
) and #18 AWG (0.75mm
2
) are preferred for ease of installation. See Signature Loop Controller catalog
sheet for detailed wiring requirement specifications.
Relay Detector Base, SIGA-RB, SIGA-RB4
Test Fire
Type of Detector
SIGA-IS Ion
SIGA-PS Photo
SIGA-HRS and
SIGA-HFS Rate-of
-Rise/Fixed Temp.
SIGA-PHS
Photo/Heat 3D
SIGA-IPHS
Ion/Photo/Heat 4D
Open Wood
optimum
unsuitable
optimum
very suitable
optimum
Wood Pyrolysis
suitable
optimum
unsuitable
optimum
optimum
Smouldering Cotton
very suitable
optimum
unsuitable
optimum
optimum
Poly Urethane Foam
very suitable
very suitable
suitable
very suitable
optimum
n-Heptane
optimum
very suitable
very suitable
optimum
optimum
Liquid Fire without
Smoke
unsuitable
unsuitable
optimum
very suitable
very suitable
Isolator Detector Base, SIGA-IB, SIGA-IB4
Application
Although photoelectric detectors have a wide range of fire sensing capabilities they are best suited for detecting slow, smoldering fires.
The table below shows six standard test fires used to rate the sensitivity of smoke and heat detectors. The table indicates that no single
sensing element is suited for all test fires.
EST recommends that this detector be installed according to latest recognized edition of national and local fire alarm codes.
From Power Supply
or Previous Sounder Base
DATA IN (-)
DATA OUT (-)
From Signature Controller
or Previous Device
To Next Sounder Base or
E-O-L Relay
To Next Signature Device
DATA IN (+)
24 VDC IN (+)
24 VDC OUT (+)
24 VDC IN (-)
24 VDC OUT (-)
DATA OUT (+)
DA
T
A
(+)
IN/OUT
DA
T
A
(-)
IN
DA
T
A
(-)
OUT
SIG
+
JW1
JW2
SIG
-
Jumper JW2
OUT = Steady Tone
IN = Temporal Tone
Jumper JW1
OUT = Low Volume
IN = High Volume
Audible Detector Base, SIGA-AB4
Term Description
1
Not Used
2
DATA IN/OUT (+)
3
Not Used
4
DATA IN (-)
4
Remote LED (-)
5
Remote LED (+)
6
Not Used
7
DATA OUT (-)
CONTACT RATING
1.0 Amp @ 30 VDC
(Pilot Duty)
Term Description
1
Normally Open
2
DATA IN/OUT (+)
3
Common
4
DATA IN (-)
4
Not Used
5
Normally-Closed
6
DATA OUT (-)
Term Description
1
Not Used
2
DATA IN/OUT (+)
3
DATA IN (-)
4
Not Used
5
Not Used
6
DATA OUT (-)
7
Not Used
