HDB-1型防爆電(dian)(dian)話機(ji)為本(ben)質安全(quan)型，具有(you)普通(tong)電(dian)(dian)話機(ji)功能外，還(huan)具有(you)全(quan)電(dian)(dian)子、無觸點(dian)感應(ying)功能，電(dian)(dian)路采用特種技術。話機(ji)與關聯設備BOH-1型防爆耦合器配套，與交換機(ji)連(lian)接(jie)，組成防爆通(tong)訊系統
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