IC697ACC744

以下情況必須使用交叉線：
1、兩臺(tái)計(jì)算機(jī)通過(guò)網(wǎng)卡直接連接（即所謂的雙機(jī)直連）時(shí)；
2、以級(jí)聯(lián)方式將集線器或交換機(jī)的普通端口連接在一起時(shí)；

以下情況必須使用直通線：
1、計(jì)算機(jī)連接至集線器或交換機(jī)時(shí)；

【公　司】： 廈門泰尼電氣有限公司
【主　營(yíng)】： AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià)　格】： 電議
【發(fā)布人】： 張亮
【電  話】： 18030028083
【所在地】： 福建 - 廈門
【座　機(jī)】： 0592-6809819
【來(lái)　源】： 供應(yīng)信息 > 電工、電氣 > PLC
【Q　  Q】： 2314094943

2、一臺(tái)集線器或交換機(jī)以Up-Link端口連接至另一臺(tái)集線器或交換機(jī)的普通端口時(shí)；
3、集線器或交換機(jī)與路由器的LAN端口連接時(shí)；

以下情況既可以使用直通線，也可使用交叉線：
1、集線器或交換機(jī)的RJ-45端口擁有極性識(shí)別功能，可以自動(dòng)判斷所連接的另一端設(shè)備，并自動(dòng)實(shí)現(xiàn)MDI/MDI-II間的切換；
2、集線器或交換機(jī)的特定端口MDI/MDI-II開關(guān)，可通過(guò)撥動(dòng)該開關(guān)選擇使用直通線或交叉線與其他集線設(shè)備連接。

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