★安裝于(yu)系統通訊(xun)總線上,用于(yu)通訊(xun)總線線路(lu)(lu)的短(duan)路(lu)(lu)故障隔離,一臺 HDM3310總線制消防電話總機最多可連接 30
部 HD374總(zong)(zong)線(xian)隔離模(mo)塊(kuai), 每部 HD374模(mo)塊(kuai)后的(de)通訊(xun)總(zong)(zong)線(xian)可連接 30部總(zong)(zong)線(xian)制(zhi)編碼(ma)消防電話分機或消防專用(yong)墻(qiang)孔(kong)。
★ HD374隔離(li)模塊所(suo)連接的輸出線路(lu)(lu)具有短路(lu)(lu)保(bao)護和(he)隔離(li)功能(neng),并可不影響其他通(tong)訊總線回(hui)路(lu)(lu)的正常工作。
★ 采用 86接(jie)線預(yu)埋盒安(an)裝結構(gou)。
★ Installs on system bus-line, is used to isolates bus-line failure, each HDM3310 exchange can connect up to 30 HD374 isolators, each isolator can support 1 to 30 fire telephone extension or wall socket. ★ HD374 isolator provides protection for following bus-line section from short-cut situation, and also keep rest section of bus-line working normally. ★ Suitable for ‘86’ type box installation.