| 1756-OV16E |
| 1756-OV16E |
| 1756-OV16E |
光纖通道與繼電保護(hù)配合的幾種方式
目前，縱聯(lián)保護(hù)采用光纖通道的方式，得到了越來(lái)越廣泛的應(yīng)用，在現(xiàn)場(chǎng)運(yùn)行設(shè)備中，主要有以下幾種方式：
(1)專(zhuān)用光纖保護(hù)：
光纖與縱聯(lián)保護(hù)(如：WXB-11C、LFP-901A)配合構(gòu)成專(zhuān)用光纖縱聯(lián)保護(hù)。采用允許式，在光纖通道上傳輸允許信號(hào)和直跳信號(hào)。此種方式，需要專(zhuān)用光纖接口(如：FOX-40)，使用單獨(dú)的專(zhuān)用光芯。優(yōu)點(diǎn)是：避免了與其他裝置的聯(lián)系(包括通信專(zhuān)業(yè)的設(shè)備)，減少了信號(hào)的傳輸環(huán)節(jié)，增加了使用的可靠性。缺點(diǎn)是：光芯利用率降低(與復(fù)用比較)，保護(hù)人員維護(hù)通道設(shè)備沒(méi)有優(yōu)勢(shì)。而且，在帶路操作時(shí)，需進(jìn)行本路保護(hù)與帶路保護(hù)光芯的切換，操作不便，而且光接頭經(jīng)多次的拔插，易造成損壞。張亮 24小時(shí)移動(dòng)專(zhuān)線：18030028083 QQ：2314094943 傳真：0592-6890859
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