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Appendix A: Interfaces
A-24
K1297-G20 Monitor User Manual
Working With Two AP-4 / AP-4/256 Boards. Upon delivery, AP-4 boards are set
to ”0”. If you work with a second AP-4 board, make sure its VME bus
address (CPU number) is set correctly.
The VME bus addresses throughout the system must be unique. The AP-4
and Ethernet boards require an odd address number. In addition, the next
even address number must NOT be used in the system:
H A system with a second AP-4 board with VME address ”7” (and ”8”
implicitly) works fine if there are no other board conflicts with ”7” and
”8”.
H A system with a second AP-4 board with VME address ”3” (and ”4”
implicitly) plus an E1/DS1 Emulation board with VME address ”1”
works fine if there are no other board conflicts with ”3”, ”4”, and ”1”.
CAUTION. The PC board is set to address ”9” upon delivery (and ”10”
implicitly), and the first AP board is set to address 0. Never change the
addresses of the PC board and the first AP-4 board.
See the description on how to define CPU numbers of the Ethernet board
on page A-56 and proceed accordingly if you want to work with a second
AP-4 board.
The Status Window displays the VME addresses that are in use (however,
the implicitly used numbers for boards such as AP-4 and ETH-100 are not
displayed).
CAUTION. Only a qualified service technician should perform this
procedure at an ESD approved workplace. To avoid injury and to prevent
damage to the board or any products connected, review all safety
precautions in the User Manual when adapting CPU numbers.