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19

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security magnetic contacts

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GE 45115 Wireless Battery-Operated Magnetic Window Alarm, 2 Pack

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 31LbNuWZzPL. SL75 security magnetic contacts
GE 56789 SmartHome Wireless Window Alarm

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GE 45131 Choice-Alert Wireless Door/Window Sensor

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Recessed press fit contact (with wire leads, 3/8 inch d, closed loop)

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GE SECURITY 1078W-N Recessed Steel Door Contact w/Wire Leads

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Doberman SE-0109 Entry Defense. Silver/black

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Megatronix - MGT - Magnetic Reed Switch, Normally Open (N/O) And Normally Closed (N/C) - Ideal For Doors, Windows, Garages, Gates, Truck Beds, Etc

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Directed Electronics 8600 Micro Magnetic Switch (12 Volt Security/Starters / Security Accessories)

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Motorola On-Site RDU2020 2-Channel UHF Water-Resistant Two-Way Business Radio

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Installing Magnetic Contact for Response Wireless Alarms

security magnetic contacts Questions


What type of cable to be used for each following system?

I'm a fresh engineer in M&E consultant. Often I have to design various ELV and security system but I have not very sure what cable needed to used in the applications. Can anyone please help me to get clear what type of cable to be used in the following system?
a) CCTV
b) Door Access (EM Contact, card reader, push button)
c) Public Address System (Ceiling speaker)
d) Security alarm (Magnetic alarm contact, siren)

Thank you.

Normally we use fiber optic cables, it is more reliable , but normal electric wires can be used , all these considered low voltage

31uUn0RaelL. SL75 security magnetic contacts
Motorola On-Site RDV2020 2-Channel VHF Water-Resistant Two-Way Business Radio

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