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Model 1260-51 User Manual
Theory of
Operation
Syntax
OPEN|CLOSE
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The <module address> used here is not the VXIbus
defined Logical Address of the 1260 Series Master. It
is unique to the 1260 Series and describes the
switching module in relation to the Master.
address corresponds to the binary value of the switch
setting of SW1 on the switching module PCB. Refer
to the Installation Section of the 1260 Series VXI
Switching Cards Manual, Part Number 980673-999, for
more information.
The fundamental commands for the 1260-51 RF Matrix are the
OPEN and CLOSE commands. The commands for 1260-51 differ
in that users specify the input and output port rather than the
relays. Then a unique path for the input-output, permanently
stored in hardware, is established to make the path from input
port to output port.
If a new path requested is in conflict with the other paths already
made, all previous paths using that conflicting relay will be
opened to make a new path. Furthermore, relays that were part
of the previous paths will be opened to make them available for
future usage.
The Module Specific Syntax for the 1260-51 RF Multiplexer is as
follows:
<module address>.<4-digit I/O>[;<module address>.<4-digit I/O >]
Example:
OPEN <module#>.<starting I/O >-<ending I/O >
CLOSE <module#>.<starting I/O >-<ending I/O >
OPEN/CLOSE will make the path for given input -output pairs.
Often each path involves multiple relays and thus any previous
path which uses relays requested by the new path will be
destroyed to make the new path.
OPEN 1.0010
00: specify input channel
10: specify output channel
Multiple paths may be listed in a single line of instruction, but be
NOTE:
Module Operation 3-3
This
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