8-32 Chapter 8, Jumper Settings and Switch Settings

8.13ASYNCHRONOUS COMMUNICATIONS/PARALLEL PRINTER BOARD

Table 8-20. Asynchronous Communications/Parallel Printer Board (assy. no. 000570) Switch Settings

Switch

Function

Setting

 

 

1

Reserved

Always OFF

 

 

 

 

 

 

 

2

Asynchronous interface

2

= ON

ENABLED

 

 

2

= OFF

DISABLED

3, 4

Parallel Port Select/Disable

 

 

 

 

 

LPT1 SELECTED

3

= ON

4

= ON

 

LPT2 SELECTED

3

= OFF

4

= ON

 

LPT3 SELECTED

3

= ON

4

= OFF

 

LPT DISABLED

3

= OFF

4

= OFF

5, 6

Asynchronous interface

 

 

 

 

 

COM1 SELECTED

5

= ON

6

= ON

 

COM2 SELECTED

5

= OFF

6

= ON

Addendum 108431-001 (11-88) to Manual No. 108033-003

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Image 248
Compaq 386 manual Asynchronous COMMUNICATIONS/PARALLEL Printer Board