Preparing a replacement system board
8-9
014–002250–01
7. Verify the position of the synchronous serial port jumpers (
P3
,
P4,
P5, P6
, and
P10
). These jumpers configure the
SYNC
port for your
release of the DG/UX operating system. Figure 8–10 illustrates
configuration options for the synchronous operation jumpers.
IMPORTANT:
For synchronous applications to work correctly with DG/UX 5.4
Release 3.00 or greater, you must change the default jumper
configuration.
By default, jumpers are installed on
P3
and
P6
. To use the
synchronous port with DG/UX 5.4 Release 3.00 or greater, install a
jumper on pin
P5
. You may use any stored jumper (one that is
attached to only one pin on a jumper location that should be empty).
Contact your Data General representative if an unused jumper is
not available.
P6
P5
P4
P3
P10
Before DG/UX 5.4R3.00
P6
P5
P4
P3
P10
DG/UX 5.4R3.0
or later
Figure 8–10 Configuring the synchronous operation jumpers
Summary of Contents for AViiON 550 Series
Page 2: ......
Page 6: ......
Page 12: ...Joining our users group x 014 002250 01 ...
Page 86: ...Opening and closing the computer unit 4 12 014 002250 01 ...
Page 96: ...Installing a drive assembly 5 10 014 002250 01 ...
Page 188: ......
Page 191: ......