用于 HDM3310總線(xiàn)消防電話(huà)總機(jī)間的網(wǎng)絡(luò)連接,，具有 A/B端,，可各連接 1臺(tái)消防電話(huà)總機(jī)的通訊總線(xiàn)，實(shí)現(xiàn)數(shù)
字通信和語(yǔ)音信號(hào)的路由傳輸,。 ★ 由通訊總線(xiàn)為網(wǎng)絡(luò)路由器進(jìn)行供電,，無(wú)需外接電源，工作電壓范圍為DC24V±4V,。 ★ A/B端在各自接入的通訊總線(xiàn)系統(tǒng)中各占 1位編碼地址,，有工作燈指示巡檢狀態(tài)。 ★ A/B端采用隔離電路設(shè)計(jì),，可減小通訊總線(xiàn)噪聲串?dāng)_,。 ★ A端適于連接中心控制消防電話(huà)總機(jī)，而 B端連接其他分區(qū)的消防電話(huà)總機(jī),。 ★ 金屬外殼,，不易損毀，抗干擾能力強(qiáng),。
★ Used for networking two or more HDM3310 addressable telehphone exchange, designed side A and B,
which connect bus-line of two exchanges respectively and realize bridging and networking voice and
digital signal. ★ Power supplied by exchange bus-line, no additional power source needed, rated voltage range: DC18-
DC26V ★ Isolated design between Side A and Side B, to minimizing crosstalk noise. ★ Side A is designed to connect to central control exchange, side B connects to other exchange. ★ Metal shell, not easy to broke, has strong shock resistance and anti-jam capability.
