Optima
INSTALLATION MANUAL.
Approved Document No: GLT.MAN-109
PAGE 5
Issue : 1.2 Authorised: GH Date: 31/03/2004
END of
LINE
CAPACITOR
100uF, 25-100V
+
- -
+
CALL
POINT
+
- -
+
CALL
POINT
ZONE +
ZONE -
If ALL the call points are connected to the start of the zone, then
conventional bases can be used instead of diode bases.
L1I
N
L1O
UT
EA
RTH
L2
-R
L1I
N
L1O
UT
EA
RTH
L2
-R
L1I
N
L1O
UT
EA
RTH
L2
-R
-
-
-
-
L1I
N
L1O
UT
EA
RTH
L2
-R
An End of Line capacitor (provided in the Panel) must be connected across the terminals of the last
device on each circuit to allow the wiring to be monitored. It is polarity sensitive, and connected with
the “–“ arrows pointing to zone -ve
Using detector bases with continuity diodes fitted will allow all devices, including Manual Call Points
to remain operational if a detector is removed from its base.
Old Manual call points, which just cause a short circuit, are not directly compatible, as they would
cause a short circuit fault. Fitting a 470R resistor in line with the call point will allow it to work. (Wired
in a similar way to non-polarised bells shown at the foot of this page).
Other makes of detector will have different connections, but in general they are wired in one of 2
ways:
SPLIT NEGATIVE
+IN
&
+ OUT
to same terminal,
- IN
to stripe side of continuity diode,
-OUT
to non-stripe side of
continuity diode.
Or
SPLIT POSITIVE
+IN
to non-stripe side of continuity diode,
+ OUT
to stripe side of continuity diode,
- IN
&
-OUT
to
same terminal.
Some makes of detector will connect the +ve to a 470R load resistor, or a polarisation diode, to
enable the detector to work correctly with European Fire Alarm Panels.
For more specific device wiring information, please refer to the device manufacturers’ own
instructions.
The termination of each detection circuit must be as indicated on the main PCB (See page 15). The
Earthing of the cable screens should be as shown on page 9.
2.4 SOUNDER CIRCUIT WIRING DIAGRAM
+
- -
+
+
- -
+
SND+
SND-
SOUNDER
SOUNDER
+
- -
+
SOUNDER
+
- -
+
SOUNDER
10K
End of
Line Resistor
Note: If non-polarised alarm devices (eg some types of old mechanical bell, or a relay) are used, then
a diode will have to be placed in line with the device to enable fault monitoring. They may also need a
back EMF protection diode. (symptoms: Chattering sounder relays that don’t turn off).
+
- -
+
SND+
SND-
BELL
10K
End of
Line Resistor
+
- -
+
+
- -
+
BELL
BELL
CONNECTOR
BLOCK
POLARISING
DIODE
BACK EMF
DIODE
NC
NO
C M
RELAY
