... alarm.l Electric interface 4000V thunder-proof, 1.5A overcurrent protection, 600W surge protection. Industrial design, EMC test certificate.l DC9 ... 36V wide temperature redundancy dual power, reverse connection protection.l IP30 protection grade, wave pattern aluminum enhance case, adopt ... /s and 12MBit/s.Ø Have the protection function of 4000V anti-lightning,1.5A over-current and 600W surge-proof ...