Specifications

SECTION VII
CUSTOMER INSTALLABLE OPTIONS
7.1 INTRODUCTION
The SA810/860 Can be modified by the user to function differently than the standard method outlined in Sections I
and II. These modifications can be implemented by adding or deleting connections and by use of the alternate I/O
pins. Some options are capable of being connected by use of a shorting plug, Shugart PIN 15648 or AMP PIN
53013-2. This section will discuss a few examples of modifications and how to install them. The modifications
discussed
in the following paragraphs are:
a. External Write Current Switch
b. Two-Sided Status
Output (SA860 only)
c. Disk
Change Option
d. Side Select Option Using Direction Select (SA860 only)
e. Side Select
Option Using Drive Select (SA860 only)
f. In Use Alternate Input
g. Motor
On Without Selecting Drive
h. Motor
On by Optional Motor On and Drive Select
i. Motor Off Delay
j. Radial Ready
k. Stepper Power Down
I. Write Protect Optional Use
Table 7-1 summarizes these options and the component designators indicating their PCB location in figure 7-1 and
7-2.
7-1