题目内容
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A ZXWM M900 or ZXMP M800 device should not be placed against a wall for fear of remov
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A.NCPF、APSF
B.APSF、OHPF
C.NCPF、OHPF
D.NCPF、OSCF
更多“A ZXWM M900 or ZXMP M800 devic…”相关的问题
第3题
The wrong description about the power line in engineering installation specification i
s: ()
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A. Both the power line and the grounding line use the 10mm2 multi-strand lead wire. You can also use the 16mm2 multi-strand lead wire.
B.The external power lines include two blue wire, two black lines, and one yellow and green line, which represent -48V, -48V GND, and PGND.
C.Wires of all kinds of colors can be used in a mixed way.
D.The ZXWM M900/ZXMP M800/ZXWM-32(V1.1) equipment use the -48 V DC power supply
第5题
Which one below is wrong？（)
A.ZXWM M900 supports the back-to-back installatio
B.ZXWM M900 supports the by-the-wall installatio
C.ZXWM M900 supports the wires connected on the top of the cabinet.
D.ZXWM M900 supports the wires connected to the back of the equipment.
第10题
ZXWM M900提供了多种有效的保护方式：基于光网络层的光通道1+1保护、光通道1:N保护、光复用段1+1保护。保护倒换时间为
A.小于20ms
B.小于30ms
C.小于40ms
D.小于50ms
