Advantech PCL-740 Spezifikationen PDF herunterladen (Seite 6)

2 PCL-741 User's Manual

Description

The PCL-741 card provides two isolated RS-232 or current-loop

serial ports for communication applications in difficult environ-

ments. You can configure each port individually to RS-232 or 4-20

mA current-loop using on-board jumpers.

The card has two 16C550 UARTs (on-chip 16-byte FIFO buffers)

making serial I/O more reliable. By buffering data into 16-byte

packets before putting it on the bus the UARTs drastically reduce the

CPU load. This makes the PCL-741 especially suitable for high

speed serial I/O applications and applications under MS Windows.

On-board optical isolators protect your PC and equipment against

damage from ground loops to increase system reliability in harsh

environments.

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Advantech PCL-740 Spezifikationen Seite 6