®
920i
Programmable HMI Indicator/Controller
Two-Card Expansion Board Installation Instructions
PNs 69782 and 71743
This document contains procedures for installing
two-card expansion boards in the wall and panel
mount models of
indicators. Procedures for each
920i
enclosure type are described separately below.
See the Installation Manual, PN 67887, for general
installation and configuration information, including
option card slot numbering and port assignments.
The slot/location jumper on the two-card
NOTE:
expansion board must be set to the 3–4 position for all
standard installations. The 9–10 position is used only
in special applications using both six- and two-card
expansion boards.
J1
ISP
1
+3.3V
+5V
–6V
J4
1
+6V
+6V
–6V
April 2007
For applications using both six- and two-card
expansion boards, connect the six-card board to the
two-card board using either cable PN 71799 (panel
mount units) or PN 71780 (wall mount units).
U3
GND
Figure 1. Two-Card Expansion Board
Disconnect power before opening indicator
enclosure.
Option
cards
are
Disconnect power to the expansion board
before installing option cards.
Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working with circuit
boards.
SLOT/LOCATION JUMPER
9–10
3–4
J2
not
hot-pluggable.
1
J3
71284
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