SOHARD SH ARC-66, Руководство пользователя

Страница: 3 / 14

SH ARC-66 Version 03.00
1. Introduction
The SH ARC-66 is a 16 bit ARCNET card for computers with an ISA
bus. The card is conceived for the use in computers for office
communications as well as in industrial computers. Both alternatively
available interfaces, coax and TWP, ensure a maximum of flexibility.
By means of the attached software drivers, the card can be integrated
into your application fast and at moderate costs.
For the implementation in office communication systems, the standard
ARCNET driver of the corresponding operating system can be used.
2. Compatibility
The card is software-compatible to 8 bit ARCNET cards (with COM
90xx). Thus the SH ARC-66 can easily be used as a substitute for an
older ARCNET card. Having connected the card, it behaves like its 8 bit
predecessor. The card can only be switched into the 16 bit modus (see
[1]) by setting a further bit specifically – usually, this is already effected
by the 16 bit driver.
By activating the internal termination, the SH ARC-66 behaves like a
"star card" (low-impedance bus interface).
Page 3