Unverified88% confidenceDecision RuleTime unknown
断网备份必须确认主机支持双通道（WiFi+4G/GSM卡槽），纯WiFi主机在断网时无法推送报警，仅能本地声光；有防盗需求必选带SIM卡槽机型
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified报警套装的联网方式应选择「WiFi+4G双备份」机型，纯WiFi机型在断网或断电剪线后完全失效，无法防范专业入室盗窃86% similarUnverified主机需支持双路以上通信备份（如以太网+4G），当宽带被剪断或断电时可自动切换4G上报，纯WiFi单通信主机不适合安防用途85% similarUnverified无线报警套装优先选支持WiFi+4G双备份联网的型号，仅WiFi的在断网或被剪网线时会失效，安防价值大打折扣，4G备份卡是防拆防断网的核心保障84% similarUnverified断网后仍需报警的场景，必须选支持GSM/4G插卡的主机（电话+短信告警），纯WiFi/APP推送方案在断网或断电时完全失效，无法通知84% similarUnverified报警主机应支持双联网（4G+Wi-Fi/有线）双通道备份，仅Wi-Fi的主机在剪断网线或断电断网攻击下会失效，安防级别大幅下降83% similar
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