2.3.1.2 電源輸入/報(bào)警連接用的接線端
背板上備有12個(gè)接線端用于電源輸入和報(bào)警連接。對于每一個(gè)電源模件內(nèi)的電源備有單獨(dú)的加有標(biāo)號的端子。
#1電源端子 說明
L 火線（熱線）或DC+
N 中線或DC-
機(jī)架的地，保護(hù)接地
NO NO機(jī)架報(bào)警接點(diǎn)
C 公共報(bào)警接點(diǎn)
NC NC機(jī)架報(bào)警接點(diǎn)
#2電源端子 說明
L 火線（熱線）或DC+
N 中線或DC-
機(jī)架的地，保護(hù)接地
NO NO機(jī)架報(bào)警接點(diǎn)
C 公共報(bào)警接點(diǎn)
NC NC機(jī)架報(bào)警接點(diǎn)
電源輸入線每一電源為額定最小240瓦。Tricon機(jī)架的最小功耗在帶有三個(gè)主處理器和一個(gè)電源模件時(shí)為50瓦。其它的功耗用于安裝在機(jī)架內(nèi)的I/O和通訊模件。進(jìn)一步的資料見4.1.6節(jié)的“各種不同系統(tǒng)配置時(shí)的電源支持”。
警告！
不要在危險(xiǎn)區(qū)使用報(bào)警接點(diǎn)
2.3.1.3 狀態(tài)指示燈
每一電源模件前面的LED指示器標(biāo)明模件的狀態(tài)：
指示器 顏色 說明
PASS 綠 輸入電源OK
FAULT 紅 電源模件故障
ALARM 紅 有機(jī)架報(bào)警
TEMP 黃 超溫情況
BATT LOW 黃 電源電壓過低報(bào)警
2.3.1.4 報(bào)警用途的接線端
大的接線條上也具有一組三個(gè)螺釘接點(diǎn)，用于特定的報(bào)警：
—常開接點(diǎn)
—公共點(diǎn)
—常閉接點(diǎn)
標(biāo)有“NC”的接點(diǎn)在發(fā)生報(bào)警情況時(shí)閉合。標(biāo)有“NO”的接點(diǎn)在發(fā)生報(bào)警情況時(shí)斷開。進(jìn)一步的資料參閱本章后面所敘述的“報(bào)警說明”一節(jié)。
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