晶闸管输出型接口电路中,当输出锁存器的对应位为“1”时,其对应的光耦合器导通,把负载和电源连通起来,使得负载获得电流,发光二极管(LED)发光。当输出锁存器的对应位为“0”时,由于负载电源过零,其对应的光耦合器截止,把负载和电源隔断,使得负载不会获得电流,发光二极管(LED)不导通。 上述三种类型的输出接口电路中,继电器输出型较常用,它适用于交、直流负载,其特点是带负载能力强,但动作频率与相应速度慢。晶体管输出型适用于直流负载,其特点是动作频率高,相应速度块,但带负载能力小。晶闸管输出型适用于交流负载,相应速度快,带带负载能力不强。 1747-M3 EEPROM MEMORY,4K 1747-M4 EEPROM MEMORY,4K 1747-M5 ADAPTER SOCKET-PKG. 5 1747-NP1 WALL MOUNT PWR SUPPLY 120V AC INPUT 1747-NP2 GLOBAL DESK TOP PWR SUPPLY 85/285 V AC IN 1747-OCAPINT WINDOWS NT API FOR 1771-OC MODULE 1747-OCDPDE OC DOC SET/GERMAN 1747-OCDPES OC DOC SET/SPANISH 1747-OCDPFR OC DOC SET/FRENCH 1747-OCDPIT OC DOC SET/ITATIAN 1747-OCDR16 16 MB DRAM FOR 1747 OPEN CONTROLLER 1747-OCDR32 32 MB DRAM FOR 1747 OPEN CONTROLLER 1747-OCDR4 4 MB DRAM TO 1747 OPEN CONTROLLER 1747-OCENET ETHERNET(10/100 BASET)MODULE 1747-OCF 266 MHZ OPEN CONTROL PROCESSOR 1747-OCFAN1 FAN ASSEMBLY FOR 1747 OPEN CONTROLLER 1747-OCIDE1 ATA CARRIER CARD/IDE DRIVE EXPANDER MODULE 1747-OCIDE25 2.5 IDE DRIVE EXPANSION MODULE 1747-OCKTX SINGLE CHANNEL 1-B COMM OPTION MODULE 1747-OCKTXD DUAL CHANNEL A-B COMM OPTION MODULE 1747-OCP252 PARALLEL ADAPTER CABLE 1747-OCPCI2 2-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI3 3-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI4 4-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI5 5-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI6 6-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCM1 PCMCIA OPTION MODULE 1747-OCPCM2 PCMCIA OPTION MODULE WITH CARD & SOCKET 1747-OCS92 SERIAL ADAPTER CABLE 1747-OCSBC SERIAL BOOT CABLE 1747-OCSDCK FLASHDRIVE CABLE KIT FOR 1747 OPEN CONTROLLER 1747-OCTS OPEN CONTROLLER FAMILY SUPPORT CONTRACT 1747-OCUS OPEN CONTROLLER FAMILY UPDATE SERVICE 1747-OCVGA1 VGA OPTION MODULE FOR 1747 OPEN CONTROLLER PCI BUS 1747-OCVGAE COMBO OPTION MODULE 1747-PCIAA 1747 PCI BUS INTERFACE KIT 1747-PCIAB 1747 PCI BUS INTERFACE KIT 1747-PCIBA 1747 PCI BUS INTERFACE KIT 1747-PCIBB 1747 PCI BUS INTERFACE KIT