描述
外接触点接通，或图中的PNP型晶体管饱和导通时，电流经24V电源的正极(24V端子)、外部的触点或晶体管、X0等输入端子、内部电路和S/S端子，从0V端子流回24V电源的负极，使光耦合器中的发光二极管亮，光敏三极管饱和导通。
2GB (2X1GB) FOR INTEL NETSTRUCTURE ZT 5515 S845WDI-E
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INTEL NETSTRUCTURE 470F SWITCH
LOT OF 5 Intel NetStructure E-Commerce Accelerator
NEW Intel NetStructure ZT4807A Rear Transition Board
Intel NetStructure 10/100 Ethernet Switch Module ZT8101
1GB (2X512MB) FOR INTEL NETSTRUCTURE ZT 5515 S845WDI-E
Intel NetStructure 7140 Traffic Director
1GB FOR INTEL D845BG D875PBZ NETSTRUCTURE ZT 5515
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1GB RAM 4 Intel NetStructure Series MPCBL0001 DDR
LOT 2 Intel Netstructure 7110 E-Commerce Accelerator
Intel NetStructure 3110 VPN Gateway
