Racal Instruments 1260-100X, Руководство пользователя

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1260-100X User Manual
Racal Instruments
©
2005 Getting Started 2-5
Set these switches as follows:
Local Bus Daisy-
Chain Switches
Currently, the 1260-100X requires another carrier with an Option-
01T installed in the adjacent left slot.
If you are using a 1260-100X Carrier as the last carrier in the VXI
chassis with no switch modules or carriers to its right, set all
twelve local bus daisy-chain switches to the OPEN position. On
the other hand, if you install a 1260-Series switch module or
another 1260-100X Carrier to the immediate right, set all twelve
local bus daisy-chain switches (S1 positions 1-6 and S2 positions
1-6) to the CLOSE position. This allows the Option-01T in the
carrier of the adjacent left slot to control not only the plug-ins in
that carrier, but the switch modules installed to the right, as well.
Module Address
Switch
Although plug-ins and 1260-Series modules do not require logical
addresses (the Option-01T has one instead), they each have a
module address . The Option-01T uses module addresses to
distinguish between plug-ins, and between 1260-Series modules.
Each plug-in or module must have a unique module address from
one through twelve, inclusive. Models 1260-100X assigns
module addresses as follows:
1260-100X Module Address
The module address DIP switch S2 postion 7 (see figure 2-2)
sets the logical addresses for all plug-ins in the 1260-100X
Carrier. The switch has two settings:
•
1-6 (opened) When the switch is set to this position, the
module addresses of the plug-ins are from
1 through 6, with 1 being in the left slot of
the top row. The plug-ins are addressed in
the following pattern:
•
7-12 (closed) When the switch is set to this position, the
module addresses of the plug-ins are from
7 through 12, in the following pattern: