题目内容
(请给出正确答案)
[多选题]
The installation of a DWDM device involves ().
A.Fixing the rack
B.Preparing engineering marks
C.Installing the NMS computer
D.Cable laying
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A.Fixing the rack
B.Preparing engineering marks
C.Installing the NMS computer
D.Cable laying
B.The 1U equipment supports two installation modes: installation on the 19” standard rack (ETSI compatible) and desktop installation. The 6U equipment supports the installation on the 19” standard rack.
C.All optical interfaces on the ZXMP 600 are SC connectors.
D.The 6U CWE cabinet supports the -48V/-60V (1+1 hot backup and dual input) power input.
A.Check of rack and cabinet installation
B.Cable inspection
C.Label checking
D.Site cleaning
A.number
B.numbered
C.numbering
D.numbers