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connector and output on Row C of the P1 connector. When there is no VXlbus interface
installed in the 7064 module, the user must ensure that these signals are passed onto the next
slot. There are three ways this can be done, depending on the backplane installed in your
VXlbus chassis. You will need to consult the chassis manual to verify the type of backplane
you have.
SIGNAL
P3 or P101 SHORT
BGOIN* and BGOOUT*
Pin 4 Row B to Pin 5 Row B
BG ITN* and BGIOUT*
Pin 6 Row B to Pin 7 Row B
BG2IN* and BG2OUT*
Pin 8 Row B to Pin 9 Row B
BG3IN* and BG3OUT*
Pin 10 Row B to Pin 11 Row B
IACKIN* and IACKOUT*
Pin 21 Row A to Pin 22 Row A
1. V X l b u s Backplanes with Bus Grant and Interrupt Acknowledge DIP
Switches.
- The user must close the switches in the slot where the 7064 will
be installed.
2. V X l b u s Backplanes with Active Automatic Daisy-Chain. - The Bus Grant
and Interrupt Acknowledge signals will be automatically passed to the next
slot. The user does nothing.
1
3. V X l b u s Backplanes with Auto-Configuration P1 Connectors. - With this
style of connector, the BUSGRANT and IACK daisy-chains are broken as
soon as the module is installed in a slot. The user must reconnect the daisy-
chain in the 7064 module. This is done by shorting the pins on the P3 or J 101
connector as shown in Table 2.1 below.
Table 2.1 Signal Shorts For Chassis With Auto-Configuration P1 Connectors
Bus Granp (Part Number 401951-003) has been designed to perform this task and may be
ordered from the Racal Parts Department. The jumper should be located in P3 or J101, pins
1 through 22 as shown in Figure 2.1.
2-3
Содержание 7064
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