Difference between revisions of "RH780 Massbus Adapter"
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* M8278 - MASSBUS control paths | * M8278 - MASSBUS control paths | ||
| − | They mount in a custom 6-slot [[backplane]] ( | + | They mount in a custom 6-slot [[backplane]]; 1 slot is unused, and 1 slot (on the back of the backplane) is used to hold a hex M9041 paddle card, which carries the MASSBUS out on three BC06R [[flat cable]]s to what appears to be a standard MASSBUS connector, in an 'expansion I/O connector' on the side of the cabinet. |
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==External links== | ==External links== | ||
Revision as of 15:40, 3 January 2022
The RH780 Massbus Adapter was a MASSBUS device controller for the VAX-11/780's Synchronous Backplane Interconnect.
It was implemented on four hex cards:
- M8275 - SBI/MBA interface
- M8276 - internal registers
- M8277 - MASSBUS data paths
- M8278 - MASSBUS control paths
They mount in a custom 6-slot backplane; 1 slot is unused, and 1 slot (on the back of the backplane) is used to hold a hex M9041 paddle card, which carries the MASSBUS out on three BC06R flat cables to what appears to be a standard MASSBUS connector, in an 'expansion I/O connector' on the side of the cabinet.
External links
- RH780 Massbus Adapter Technical Description (EK-RH780-TD-001)
- RH780 Field Maintenance Print Set (MP-00499)
