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Semaphore Systems :: Industrial Communication :: Serial Communication :: ISA Cards

ISA Cards

PCL-740 RS-232/422/485 Current-loop Communication Card
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PCL-740 RS-232/422/485 Current-loop Communication Card
SKU: PCL-740
The PCL-740 offers a versatile range of high speed interfacing options. You can switch its single port between the popular RS-232, long distance RS-422, multi-drop RS-485, or noise-resistant current-loop. The card’s 16C550 UART has an on-chip 16-byte FIFO buffer for faster and more reliable communication, especially under Windows.




PCL-741 2-port RS-232 Current-loop Communication Card
See details
PCL-741 2-port RS-232 Current-loop Communication Card
SKU: PCL-741
The PCL-741 offers a versatile range of high speed interfacing options. You can switch its single port between the popular RS-232, long distance RS-422, multi-drop RS-485, or noise-resistant current-loop. The card’s 16C550 UART has an on-chip 16-byte FIFO buffer for faster and more reliable communication, especially under Windows.




PCL-743 2-port RS-422/485 Interface Cards
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PCL-743 2-port RS-422/485 Interface Cards
SKU: PCL-743
The PCL-743 series card provides two RS-422/485 serial ports. Each port utilizes a 16C550 UART with an on-chip 16-byte FIFO buffer for reliable, high-speed serial I/O. The UART buffer divides data into 16-byte packets before sending them onto the bus. This drastically reduces the CPU load and avoids data loss due to failure to respond to the interrupt request in time. The UART is especially useful for high speed serial I/O under Windows




PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection
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PCL-745 2-port RS-422/485 Cards with 3000 VDC Isolation and Surge Protection
SKU: PCL-745
The PCL-745 series card provides two RS-422/485 serial ports.Each port utilizes a 16C550 UART with an on-chip 16-byte FIFO buffer for reliable, high-speed serial I/O. The UART buffer divides data into 16-byte packets before sending them onto the bus. This drastically reduces the CPU load and avoids data loss due to failure to respond to the interrupt request in time.




PCL-746+ 4-port RS-232/422/485 Communication Card
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PCL-746+ 4-port RS-232/422/485 Communication Card
SKU: PCL-746+
The PCL-740 offers a versatile range of high speed interfacing options. You can switch its single port between the popular RS-232, long distance RS-422, multi-drop RS-485, or noise-resistant current-loop. The card’s 16C550 UART has an on-chip 16-byte FIFO buffer for faster and more reliable communication, especially under Windows.




PCL-846 4-port High-speed RS-422/485 Communication Card
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PCL-846 4-port High-speed RS-422/485 Communication Card
SKU: PCL-846
PCL-800 series communication card provides reliable, high-speed serial communication. The unique shared interrupt can be set to most common (extended) AT interrupts. This simplifies programming, speeds up interrupt processing and frees up interrupts for other devices. PCL-800 series cards also provide EFT surge or isolation protection to prevent your PC and equipment against damage from ground loops, increasing system reliability in harsh environments or abrupt high voltage surges such as tho...




PCL-849 4-port RS-232 Communication Card
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PCL-849 4-port RS-232 Communication Card
SKU: PCL-849
PCL-800 series communication card provides reliable, high-speed serial communication. The unique shared interrupt can be set to most common (extended) AT interrupts. This simplifies programming, speeds up interrupt processing and frees up interrupts for other devices. PCL-800 series cards also provide EFT surge or isolation protection to prevent your PC and equipment against damage from ground loops, increasing system reliability in harsh environments or abrupt high voltage surges such as tho...




PCL-858 8-port High-speed RS-232 Communication Card
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PCL-858 8-port High-speed RS-232 Communication Card
SKU: PCL-858
PCL-800 series communication card provides reliable, high-speed serial communication. The unique shared interrupt can be set to most common (extended) AT interrupts. This simplifies programming, speeds up interrupt processing and frees up interrupts for other devices. PCL-800 series cards also provide EFT surge or isolation protection to prevent your PC and equipment against damage from ground loops, increasing system reliability in harsh environments or abrupt high voltage surges such as tho...




 
 


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