GST GST102A, Инструкция по установке и эксплуатации

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GST102A/GST104A/GST108A/GST116A
Conventional Fire Alarm Control Panel
Installation and Operation Manual
Page
17
2.4
Zone Input Connection
Each zone can have maximum 32 fire detectors. The total number of detectors and call points in a
zone should not exceed 32. They can be connected in two ways.
2.4.1
Using end of line resistor
Connect all manual call points in front of the detectors and put a 4.7k
Ω
resistor at the end of the
loop, as shown in Fig. 2-4.
1k
Ω
Nominal
MCP Panel
Zone
Input
Terminal
4.7k
Ω
Resistor
Detector (No Diode)
1 2
3 4
Detector (No Diode)
1 2
3 4
+
-
Fig. 2-4
2.4.2
Using an Active End of Line Unit
If an active end of line unit (AEOL) is used at the end of the loop, then the detectors and manual
call points can be connected at any position. Ensure the detector base is fitted with a diode to keep
the cable continuity in case any detector is removed, as shown in Fig. 2-5.
1k
Ω
Nominal
MCP Panel
Zone
Input
Terminal
AEOL
Detector
1 2
3 4
Detector
1 2
3 4
+
-
Diode Diode
+
-
Fig. 2-5
2.5
Sounder/Fire Alarm Output Connections
All 24VDC sounders or remote devices are polarity-sensitive and need to be connected with the
correct polarity. A 4.7kΩ resistor shall be connected in parallel at the end of the wiring circuit. Fig.
2-6 shows the connection of Sounder Output.
Panel
Zone
Input
Terminal
4.7k
Ω
Resistor
+
-
+
-
+
-
Fig. 2-6