FireFinder
™
Installation Commissioning & Operation
Page 8
5.6 Operational
Parameters
Temperature:
-5ºC to + 55ºC
Humidity:
25% to 75%
IP Rating
IP51
Maximum Number of Devices per Loop:
126
Maximum Number of Devices per Conventional Zone:
40
Cable Loop Characteristics:
2 core. 1.5 to 2.5mm²
Power Supply Output Voltage:
27V ( Set to 27.2V )
Power Supply Output Current:
2Amp, 5.6Amp or 18Amp
Power Supply Input:
85 - 240V AC
Panel Current Draw:
450 mA (min)
Battery Type and Capacity:
2 x 12V sealed lead-acid
batteries (capacity is determined
by the installation configuration
and supplementary
documentation Power Supply
and Battery Calculation ).
Minimum Operating Voltage:
19.2 V
5.7 Cabling
Recommendations
Conventional Zones
Cabled in red Twin Plastic Sheath ( TPS ) or fire rated Radox or approved equivalent.
Analogue Loop
Two core cable. The minimum cable size is 0.75mm
2
, the maximum loop resistance is 50 ohms and the
maximum loop distance is 2km.
RS 422 Loop
Two twisted pair screened ( 4 core ) cable originating from FACP extending through the protected areas
and returning to the FACP.
Cable Specifications
Capacitance of 100 picofarads per metre or less
Resistance of 100 milliohms per metre or less
Impedance of loop typical 100 to 120 ohms
Maximum distances between modules 1.2km providing cable meets above specifications.
Recommended cable type
Belden 8132 or 9842 (non fire rated)
Radox FR Communication 0.75mm 1 pair (fire rated) x 2
LCD Repeater
Two by two twisted pair shielded cable (4 core) plus 2 core power, or local supply.
Maximum distance between LCD mimic panel and FACP. is 1.2km.
☞
Note:
If the LCD operates in a redundant path mode the total cores including power is 10. The preferred
cabling method in this case is 1 X 2 pair twisted shielded cable ( 4 core ) and 1 X two pair twisted
shielded cable (4 core) plus 2 core power
LED Mimic ( RS485 )
Two core twisted shielded cable (No return loop) plus 2 core power or local supply.
Maximum distance between each LED repeater card and
FACP. is 1.2km.
Recommended Cable Type
Hartland HC2335
Belden 9841
Radox FR Communication
Summary of Contents for SP Series
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