描述
I/O单元实际上是PLC与被控对象间传递输入输出信号的接口部件。I/O单元有良好的电隔离和滤波作用。接到PLC输入接口的输入器件是各种开关、按钮、传感器等。PLC的各输出控制器件往往是电磁阀、接触器、继电器，而继电器有交流和直流型，高电压型和低电压型，电压型和电流型。
Alcatel / NewBridge Card 90-2153-03
Expedited shipping available
90-4905-xx Alcatel Lucent Newbridge OC3-2M Card
90-6085-xx Alcatel Lucent Newbridge S-Hub Card
90-3346-xx Alcatel Lucent Newbridge Control2 Card
90-7282-xx Alcatel Lucent Newbridge DS3 CCE2 Card
90-5891-xx Alcatel Lucent Newbridge MultiShelf Hub Card
ALCATEL 622-8868-001 6228868001 23 MULDEM CARD
ALCATEL 622-9103-002 CONFIGURATION CARD 6229103002
