Data General AViiON 5000 Series, Клиентская документация

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Configuring VME Option Boards
2-4
014–001867
3. Use a nonmagnetic small-pointed device to carefully push the proper switch(es)
to the in or out position, as required.
Figure 2–2 shows a typical row of DIP switches.
1 2 3 4 5 6 7 8 9 10
= Switch down (in)
= Switch up (out)
DIP
switches
Printed-circuit board
Figure 2–2 DIP Switches on Printed-Circuit Boards
Configuring Asynchronous and Terminal
Controller Boards
This section describes how to configure VAC/16, VDA/128, VDA/255, and VTC boards
for use in a computer that will run the DG/UX system.
Configuring Models 7400 and 7411 VME Asynchronous
Controller (VAC/16) Boards
When you receive the VAC/16 board from Data General Corporation, it is factory
configured for board 0 default switch and jumper settings and for DG/UX revision
5.4.1 or earlier. If the board you are installing is not the first of its type, you must
reconfigure the board for the position that it is to occupy. Tables 2–1 through 2–4
provide switch settings and jumpering information. For example, to reconfigure a
VAC/16 board to board 1, locate the column for board 1 in Table 2–3 or 2–4 and
remove or install the jumpers as indicated in the rectangles. If your configuration
includes more than one board of the same type, make sure that no two boards have
the same board number.
NOTE: Since the DG/UX operating system recognizes VDA/128, VDA/255, VAC/16,
and VTC boards by the same device name, syac, no two asynchronous
controller and terminal controller boards can have the same board number.
For example, do not configure both a VDA/128 and a VAC/16 board to 0;
give them unique board numbers.
Figure 2–3 shows the location of the jumpers and the SW1 switch pack on the board.
For further information about the board, refer to HPS VMEbus Multiplexer
(HPS-6236/6237) Technical Manual.