Multitech ISI608PC El manual del propietario descargar pdf (Pagina 7)

1 - Introduction and Description

Product Description

The ISI608 is a multiport serial port expansion card which

adds data buffering on each port for enhanced serial port

performance. The ISI608 features an on-board microprocessor

to coordinate the communications activity of your local and

remote terminals. Using an ISI608 to provide additional serial

connections enables your system's processor to perform more

efficiently. This is because the ISI608 handles all of the byte-

by-byte interrupts generated by asynchronous terminals and

stores the data in buffers. The processor, along with 256K

bytes of RAM work together to dynamically allocate resources

to the most active port. The ISI then generates one interrupt

for an entire block of information and transfers the block to the

system's microprocessor.

The ISI608 has one 78

pin (DB78S) connector which

interfaces with an eight

port fan

out, or “

octopus

”, cable

(supplied with the card), providing eight additional serial ports.

It is a "3/4 size" add-on card which supports a high-speed

interface up to 115.2K bps. The ISI608 features one bank of 8

DIP-Switches for I/O address selection and one jumper block

for IRQ selection.

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Multitech ISI608PC El manual del propietario Pagina 7