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BENTLY 136703-01
BENTLY 330101-00-16-10-02-00
BENTLY 330180-91-05
BENTLY 330180-51-00
BENTLY 330130-040-00-CN
BENTLY 330130-035-00-CN

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Description

可靠性不一样。我们假设输出断开为安全状态,那么图3的可靠性要比图2的高。这是因为SB1SB2都有发生故障的可能,而最常见的现象是输入电路开路。当采用图3电路时,不论SB1SB2开关本身开路还是接线开路,输出都为安全状态,保证了系统的安全和可靠。

NORTEL CCM MODULE NTUM25BA 03
AVAYA MESSAGING APPLICATION SERVER
MICROBOT TeachMover TCM
New Nortel NT8D09CAE5 RLSE 03 ANLG M/WLC

New Hunkeler LI4 Machine Control Unit for unwinder UW6