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HP OpenVMS Systemsask the wizard |
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The Question is: I have a KA650 that is missing the bulkhead, where could I find the pinouts of the connectors that goto the bulkhead, (make my own bulkhead) technical scematics/pinout charts would be helpful, and I am currently doing with out manuals because they were lost in a fire 3 years ago... Any help is appreciated... ev en a url for the information... and I have already looked at the faq and vax1 and misc1 are useless since they tell the function with out the pinouts... Thank You The Answer is :
The Wizard does not recommend working directly with the CPU modules, the
connectors, or replacing components or bulkheads unless properly trained
and equiped -- these can be static-senstive and can easily be damaged.
Failure to correctly wire the components -- or any potential (pun intended)
errors that might be present in this message -- could lead to equipment
damage. Further, there are potentially hazardous or even lethal voltages
present inside system enclosures. The Wizard strongly recommends that all
service be refered to and performed only by qualified and appropriately
trained personnel.
The Wizard would strongly recommend acquiring a used MicroVAX II (KA630)
system, or a system with a non-functional KA650 or KA655 processor. These
systems all use compatible bulkheads.
The bulkhead pinout is documented in the KA630, KA650, and KA655 technical
manuals. EK-KA630-UG is one of the associated manuals.
Configuration and display connector pinout:
01, 02, 03: ground
04, 05: zero for arbiter CPU (default), non-zero for auxillary CPU
06: ground
07, 08, 09, 11: display register bits (10 is MSB, 07 is LSB)
10: battery voltage
12: ground
13, 14: boot-diagnostic code
15: halt enable
16: ground
17, 18, 19: baud rate selection (19 is MSB, 17 is LSB)
20: fused +5V
SLU connector pinout:
01: reserved
02: ground
03: output from CPU to SLU
04: ground
05: ground
06: key; no pin
07: +differential input to CPU from SLU
08: -differential input to CPU from SLU
09: ground
10: +12V fused (for DSR)
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