Product Description:
description
The PCL-849 series cards provide four individually configurable RS-232
serial communication ports. The PCL-849A/849B/849L has a 16C554 UART
which makes serial I/O more reliable. The higher performance PCL-849+
has a 16C654 UART. By buffering data into 64-byte packets before
putting it on the bus, UARTs drastically reduce the CPU load. This
makes the PCL-849+ especially suitable for high speed serial I/O
applications under multitasking environments. The PCL-849 series cards
support two operating modes, standard mode and enhanced mode. In
enhanced mode, the address for all four ports can be set automatically.
The PCL-849 series cards also support either shared IRQ or independent
IRQ functions. When an on-board interrupt occurs, the interrupt status
register (vector address) indicates which port generated it. The 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.
Features:
| Four independent
RS-232 serial ports
Transmission speeds up to 921.6 kbps
(PCL-849A)
Independent I/O addresses,
independent/shared IRQ settings for each of 4 serial ports
Wide IRQ selection: 3, 4, 5, 6, 7, 9,
10, 11, 12 or 15
Supports standard DOS COM1, COM2,
COM3, COM4 (PCL-849A/849B/849+)
Supports surge protection: 3000 VDC
(PCL-849B/849+)
LED indicators on each port indicate
data flow
Onboard interrupt status register for
greater throughput
Complete RS-232 modem-control signals
Supports Windows® 98/2000/XP,
Linux®
Powerful and easy-to-use utility
(ICOM Tools)
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