方案說明：

ZMUX-1230T 用(yong)(yong)戶(hu)(hu)(hu)(hu)線(xian)路保護倒換(huan)(huan)設備(bei)(bei)能(neng)夠(gou)為采用(yong)(yong)雙冗余(yu)備(bei)(bei)份交(jiao)換(huan)(huan)機(ji)(ji)系統(tong)的(de)電(dian)(dian)話用(yong)(yong)戶(hu)(hu)(hu)(hu)切(qie)換(huan)(huan)用(yong)(yong)戶(hu)(hu)(hu)(hu)，簡單來說就是能(neng)夠(gou)實現主(zhu)備(bei)(bei)程控交(jiao)換(huan)(huan)機(ji)(ji)的(de)30路電(dian)(dian)話用(yong)(yong)戶(hu)(hu)(hu)(hu)線(xian)間切(qie)換(huan)(huan)，或者同(tong)一(yi)臺程控交(jiao)換(huan)(huan)機(ji)(ji)下(xia)面的(de)主(zhu)和備(bei)(bei)用(yong)(yong)30路電(dian)(dian)話用(yong)(yong)戶(hu)(hu)(hu)(hu)線(xian)間切(qie)換(huan)(huan)，滿足主(zhu)用(yong)(yong)30路重要電(dian)(dian)話的(de)用(yong)(yong)戶(hu)(hu)(hu)(hu)線(xian)路故(gu)障可以切(qie)換(huan)(huan)到(dao)備(bei)(bei)用(yong)(yong)30路重要電(dian)(dian)話用(yong)(yong)戶(hu)(hu)(hu)(hu)線(xian)，互為備(bei)(bei)份，保持一(yi)直正(zheng)常工(gong)作。ZMUX-1230T主(zhu)要功能(neng)是當主(zhu)用(yong)(yong)交(jiao)換(huan)(huan)機(ji)(ji)發生故(gu)障時，接收人工(gong)輸(shu)入切(qie)換(huan)(huan)命(ming)令(ling)后(hou)可一(yi)次性自動切(qie)換(huan)(huan)到(dao)備(bei)(bei)用(yong)(yong)交(jiao)換(huan)(huan)機(ji)(ji)線(xian)路，大大減(jian)少了(le)人工(gong)撥插(cha)線(xian)路的(de)時間，縮短了(le)故(gu)障搶(qiang)修時間。

1）可人工強制(zhi)倒換(huan)到主(zhu)用(yong)交(jiao)換(huan)機(ji)或(huo)備用(yong)交(jiao)換(huan)機(ji)，撥位開(kai)關(guan)一下可同(tong)時倒換(huan)30路(lu)用(yong)戶電話線。

2）使用軟件控制倒換時(shi)，可采用以太網，RS232或RS485之(zhi)中任(ren)一通訊方式。

3）使用軟(ruan)件控(kong)制倒換(huan)時，可電腦設(she)置倒換(huan)第幾路或一次倒換(huan)幾路。

4）支持(chi)256個(ge)RS485級聯。

5）一臺設備支持30路用戶(hu)電(dian)話(hua)線，級聯的設備總數達256個，總的容量達7680路用戶(hu)電(dian)話(hua)線。斷(duan)電(dian)直通主用交換機與用戶(hu)電(dian)話(hua)線。

ZMUX-1230T 設備后視圖(tu)