Table of Contents
Advertisement
Chapter
2
Interface Configuration
The datacomm interface is configured by use of two switch clusters located along one side of
the interface card. These switches must be set to their proper positions before the interface is
installed in the computer. This chapter discusses how to configure the interface for the various
available options.
This chapter explains how to configure the HP 98628A Option 100 (Async/Data Link protocol)
Datacomm Interface. If you are installing an HP 98691A Programmable Datacomm Interface
(interface firmware designed by a supplier other than Hewlett-Packard Company), configure
the select code and hardware interrupt level as described in this chapter, then configure the
protocol switches using instructions provided by the supplier of the firmware that is installed on
the interface card.
Configuration Switches
As shown in the following figure, the left-hand switch cluster is used to set the hardware
interrupt level and interface select code. The left-most switch in that cluster has a function that is
dependent on protocol and defined by interface firmware.
The function of the switches in the right-hand cluster is determined by protocol and the inter-
face program ROM. These switches are discussed later in this chapter. The following figure
shows the location of the configuration switches.
Always 11
!~SB
- , - ' - . -
LSB
o
,Interrupt
Select
Level
Code
Switches
Switches
MSB
LSB
7
0
I
DODD DODD
I
~
Protocol
Configuration
Switches
Switch 0 Only:
Data Link
Async
Interface Configuration Switches
1 This switch should always be set to 1 poisition on HP 98628 Datacomm Interface. If you are using an HP 98691 Programmable Datacomm
Interface, refer to firmware documentation supplied with the interface for the proper switch setting.
7
Advertisement
Table of Contents
