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Module
Installation
1260-37 ID Byte
Configuration
Jumpers
Installation Instructions 2-2
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Installation of the 1260-37 Switching Module into a VXIbus
mainframe, including the setting of DIP switches, is described in
the Installation Section of the 1260 Series VXIbus Switching Cards
Manual. Configuration of the motherboard PCB and setting DIP
switches S1-5 and S1-6 are described in the following sections.
There
are
two
configurations
Multiplexer/Scanner
circuit;
configuration responds to different sets of values for <channel
number>. The set of values the 1260-37 responds to is controlled
by switch 5 on DIP switch 51 on the main PCB. The switch settings
that correspond to the two configurations are as follows:
Configuration
S1 Switch 5
Four-wire
Two-wire
The 1260-37 Scanner/Multiplexer circuit is a user configurable
switching circuit. It may be configured to any one of eight different
configurations as shown below. The 1260-37 SPDT switch circuit
is not configurable.
1) Eight 1 x 6 two-wire scanner/multiplexers
2) Four 1 x 6 four-wire scanner/multiplexers
3) Four 1 x 12 two-wire scanner/multiplexers
4) Two 1 x 12 four-wire scanner/multiplexers
5) Two 1 x 24 two-wire scanner/multiplexers
6) One 1 x 24 four-wire scanner/multiplexers
7) One 1 x 48 two-wire scanner/multiplexers
8) One 1 x 96 one wire scanner/multiplexer
The 1260-37 Scanner/Multiplexer circuit is shipped from the factory
in the 1 x 48
two-wire configuration. Table 2-1 gives the
information necessary to configure the module into the other
possible configurations. Note that the Scanner/ Multiplexer circuit
front panel connections are at J200 and J202 while the SPDT
switch connections are at J201 and J203.
1260-37 User Manual
for
the
1260-37
two-wire
and
four-wire.
S1 Switch 6
Off
Off
On
Off
EADS North America Defense
Test and Services, Inc. © 1994
Signal
Each
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