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PCL-746plus
4-port RS-232/RS-422/RS-485 Interface Card |
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Larger image (24 Kb)
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Four independent RS-232/422/485 serial ports
Speeds up to 115.2 Kbps
Interrupts (jumper selectable): 3, 4, 5, 7, 9, 10, 11, 12 or 15
On-board interrupt status register for greater throughput
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The PCL-746+ is a four-port serial communication interface card. The main feature of this card is that each port can be configured individually to either RS-232, RS-422, or RS-485 using on-board jumpers. The card uses 16C550 UARTs and improved interrupt handling for reliable operation at transmission speeds of up to 115.2 kbps.
This PCL-746+ supports two operation modes: standard mode and enhanced mode. In standard mode each of the four ports can be set up as either the address or the IRQ channel individually. In enhanced mode all four ports can be set to share the same IRQ. When an on-board interrupt occurs, the interrupt status register indicates which port has generated it. The shared interrupt can be set to most common (extended) AT interrupts.
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- Four independent RS-232/422/485 serial ports
- Speeds up to 115.2 Kbps
- Interrupts (jumper selectable): 3, 4, 5, 7, 9, 10, 11, 12 or 15
- On-board interrupt status register for greater throughput
- Automatic data flow control in RS-485 mode
- Jumper selectable RS-422 driver always on
- Space reserved for optional surge protection on all port lines
(in RS-422/485 mode)
- Space reserved for termination resistors
- Compatible with Arnet 4-port cards supporting SCO UNIX/XENIX
- PC-ComLIB software included
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PCL-746+
: PCL-746+ 4-port serial interface cards. Includes user's manual, 30-cm DB-37 to DB-25 cable, PCLS-802 and PC-ComLIB software
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