Section Ii Pre-Operating Instructions - HP 69731B Operating Manual

SECTION II
PRE-OPERATING INSTRUCTIONS
3-1 INTRODUCTION
3-2 The purpose of this section is to provide the User with
additional information that may be required for any of the
following reasons:
The User intends to control an AC Power Controller,
Mode! 14570A and wishes to know what special con-
siderations apply.
Definition of all card jumpers.
Card's External Edge Connector.
Output Data Line Driver Applications.
External I/O Control Signals.
AC Power Controller Considerations.
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3-4 CARD JUMPERS (See Figure 3-1)
3-5 As mentioned in Section il, the Digital Output card is
shipped with certain jumpers in place, When the User wishes
to change a jumper(s), the information in the following
paragraphs should be referenced to find the location of the ap-
plicable jumper{s) and also to see what jumper arrangements
are possible. The jumpers are described in the following order:
Bidirectional Data Transceivers
External I/O Control Signal Jumpers.
Output Data Line Jumpers.
Wake-Up Code Jumpers.
Breadboard Jumpers and Connection Pads.
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3-6 Bidirectional Data Transceivers
Jumper, W38
3-7 This jumper is installed at the factory and, normally, is
never removed. This jumper establishes pin 19 of tri-state in-
tegrated circuits U7 and U25 (see Figure 6-2) at ground. With
pin 19 grounded the open or isolated state of the transceivers
is not used. Jumper W38 is temporarily removed during fac-
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3-1