
8
Serial Parallel Controller User’s Guide—February 1993
2
RS-423
This is the default RS-423 protocol setting. No changes to the jumpers are
required.
Figure 2-3
Default RS-423 Jumper Settings
RS-232
At the designated step in the card installation procedures, use a pair of
needlenose pliers to move the jumper blocks on your card from the RS-423
position to the RS-232 position, as shown in the following figure.
Figure 2-4
RS-232 Jumper Settings
Installing the Card
Go to Installing SBus Cards in Desktop SPARCstations or Installing SBus Cards in
Deskside and Data Center Cabinets to install the card. When you have finished
installing the card, return to this manual.
Pins
Jumper blocks
Card
Jumper blocks
Card
Pins
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