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
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)
If you need accessory information for this product, please use our
Online Contact Us Form to reach us,
our industrial sales team is here to help
you find the accessories.
Verified by Visa is a new service that lets you shop online with added confidence.
Through a simple checkout process, Verified by Visa confirms your identity when you make purchases at participating online stores. It's convenient, and it works with your existing Visa card.
Plus, Verified by Visa is a snap to use. You register your card just once, and create your own password. Then, when you make purchases at participating online stores, a Verified by Visa window will appear. Simply enter your password and click submit. Your identity is verified and the purchase is secure.
To activate Verified by Visa in your Visa card, or to learn more, contact the financial institution that issued your Visa card or visit
visa.com/verified.