RT-SIC-2E1-F-H3，Ser口是down 状态

RT-SIC-2E1-F-H3，2端口的E1板卡，Ser口是down 状态，我想问一下，链接这个板卡的线是有4个BNC头的那种，那么他链接到运营商的设备上是有顺序的吗？应该怎么连weibo.com/ttarticle/p/show?id=2309405158068974649417weibo.com/ttarticle/p/show?id=2309405158069037301763weibo.com/ttarticle/p/show?id=2309405158069096284174weibo.com/ttarticle/p/show?id=2309405158069155004462weibo.com/ttarticle/p/show?id=2309405158069217656842weibo.com/ttarticle/p/show?id=2309405158069276639289weibo.com/ttarticle/p/show?id=2309405158069335097402weibo.com/ttarticle/p/show?id=2309405158069398011907weibo.com/ttarticle/p/show?id=2309405158069456994340weibo.com/ttarticle/p/show?id=2309405158069532491788weibo.com/ttarticle/p/show?id=2309405158069595406442weibo.com/ttarticle/p/show?id=2309405158069653864477weibo.com/ttarticle/p/show?id=2309405158069717041212weibo.com/ttarticle/p/show?id=2309405158069775761465weibo.com/ttarticle/p/show?id=2309405158069838413852weibo.com/ttarticle/p/show?id=2309405158069901590536weibo.com/ttarticle/p/show?id=2309405158069960048680weibo.com/ttarticle/p/show?id=2309405158070040002566weibo.com/ttarticle/p/show?id=2309405158070098722906weibo.com/ttarticle/p/show?id=2309405158070161637399weibo.com/ttarticle/p/show?id=2309405158070228746286weibo.com/ttarticle/p/show?id=2309405158070291660887weibo.com/ttarticle/p/show?id=2309405158070350118919weibo.com/ttarticle/p/show?id=2309405158070408839174weibo.com/ttarticle/p/show?id=2309405158070467821593weibo.com/ttarticle/p/show?id=2309405158070534668293weibo.com/ttarticle/p/show?id=2309405158070593388620weibo.com/ttarticle/p/show?id=2309405158070656565262weibo.com/ttarticle/p/show?id=2309405158070719217666weibo.com/ttarticle/p/show?id=2309405158070778200102weibo.com/ttarticle/p/show?id=2309405158070841114631weibo.com/ttarticle/p/show?id=2309405158070899834910weibo.com/ttarticle/p/show?id=2309405158070958555195weibo.com/ttarticle/p/show?id=2309405158071021207565weibo.com/ttarticle/p/show?id=2309405158071080190020weibo.com/ttarticle/p/show?id=2309405158071138910260weibo.com/ttarticle/p/show?id=2309405158071201824806weibo.com/ttarticle/p/show?id=2309405158071260545047weibo.com/ttarticle/p/show?id=2309405158071323459598weibo.com/ttarticle/p/show?id=2309405158071386112002