Keysight E1459A 64 通道隔离数字输入/中断是 C 型、1 插槽、使用寄存器的 VXI 模块。可用于检测高达 48 Vdc 的直流电平和边沿跳变。所有输入均进行了光隔离，可承受高达 125 V 有效值或 Vdc。此外，使用该模块的内置 5 V 电源和 9.4 kΩ 有效上拉电阻，您可以检测外部开关是断开还是闭合。
去抖动特性可由用户以 16 µs 至 1074 s 为周期（二进制递增）进行编程。通道组 1 至 32 和 33 至 64 各有其独特的编程去抖动周期。
每字（16 位/通道）选通输入，就绪接收数据，中断输出。选通输入线路可并联，以进行 32 位或 64 位转换。
Description
The Keysight E1459A 64-Channel Isolated Digital Input/ Interrupt is a C-size, 1-slot, register-based VXI module. It is used to sense dc levels and edge transitions up to 48 Vdc. All inputs are optically isolated to withstand up to 125 V rms or Vdc. Plus, using the module’s built-in 5 V supply with 9.4 kΩ effective pullup resistance, you can detect whether external switches are open or closed. The debounce feature is programmable for periods of 16 µs to 1074 s in binary increments. Channel groups 1 to 32 and 33 to 64 can each have a unique programmed debounce period. Each word (16-bit/channel) has strobe in, ready for data, and interrupt out. Strobe-in lines can be connected in parallel for 32- or 64-bit transfers.
Key Features
• 1-Slot, C-size, register-based
• 64 interrupts, maskable and edge-selectable
• Jumper-selectable input levels
• Time-programmable debounce
• On-board 5 V supply for pull-up capability
• Handshake lines for each word (16 channels)
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