Advanced Electronics Mx-5100 Product Manual
Also see for Mx-5100: Manual
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Contents
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www.advancedco.com 655.2.2 Sounder Circuit LengthsThe voltage drop on each alarm circuit should be calculated to ensure that the minimum voltage at the end ofthe circuit exceeds the minimum required by each sounding device at the minimum alarm circuit output voltage.The voltage at the end of the circuit is given by:Minimum Alarm Voltage = VOUT(MIN) – (IALARM x RCABLE)Minimum Output Voltage (VOUT(MIN)) is VBAT(MIN) – 0.5V = 20.5VAlarm Current (IALARM) is the sum of the loads presented by the sounding devices in alarmCable Resistance (RCABLE) is the sum of the cable resistance in both cores x cable length.Cable Resistance (RCABLE) for 1.0mm2 is 0.036Ω / metreCable Resistance (RCABLE) for 1.5mm2 is 0.024Ω / metreCable Resistance (RCABLE) for 2.5mm2 is 0.015Ω / metreInsulation Resistance(Core-Core and Core-Screen)2M Ω5.2.3 Fire / Fault Routing Circuit LengthsThe voltage drop on each transmission circuit should be calculated to ensure that the minimum voltage at theend of the circuit exceeds the minimum required by the relay coil at the minimum circuit output voltage.Typically, relays will energise at 75% of their nominal drive voltage (i.e. 18V for a 24V coil)The voltage at the end of the circuit is given by:Minimum Coil Voltage = VOUT(MIN) – (ION x RCABLE)Minimum Output Voltage (VOUT(MIN)) is VAUX(MIN) – 0.8V = 19.7VMaximum On Current (ION) is 35mA.Cable Resistance (RCABLE) is as above.Insulation Resistance(Core-Core and Core-Screen)2M Ω5.2.4 Network CablesFor a list of recommended cables, refer to the AdNeT document 680-502.www.acornfiresecurity.comwww.acornfiresecurity.com |
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