Difference between revisions of "DR780 High-Performance Channel Interface"
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* [https://archive.org/details/digital_mast_1_10_5 Modular Approach to Systems Test] - contains a section on the DR780 (on pp. 3-20 of the PDF); includes detailed installation instructions | * [https://archive.org/details/digital_mast_1_10_5 Modular Approach to Systems Test] - contains a section on the DR780 (on pp. 3-20 of the PDF); includes detailed installation instructions | ||
| − | * [http://bitsavers.org/pdf/dec/vax/780/EK-SI780-IN-002_VAX-11_780_Installation_Manual_198201.pdf VAX-11/780 Installation Manual] (EK-SI780-IN-002) - contains a section on the DR780 (on pp. 53-62 of the PDF) | + | * [http://bitsavers.org/pdf/dec/vax/780/EK-SI780-IN-002_VAX-11_780_Installation_Manual_198201.pdf VAX-11/780 Installation Manual] (EK-SI780-IN-002) - contains a section on the DR780, Chapter 6 (on pp. 53-62 of the PDF) |
* [http://bitsavers.org/pdf/dec/vax/780/DEC_VAX-11_780_Dual_RK07_System_Config_198101.pdf Dual RK07 Disk-Based VAX-11/780 System Configuration] - contains a brief description of the DR780 | * [http://bitsavers.org/pdf/dec/vax/780/DEC_VAX-11_780_Dual_RK07_System_Config_198101.pdf Dual RK07 Disk-Based VAX-11/780 System Configuration] - contains a brief description of the DR780 | ||
* [http://bitsavers.org/pdf/dec/vax/780/DEC_VAX-11_780_RP06_TE16_TU77_System_Config_198004.pdf RP06/TE16 and RP06/TU77 Based VAX-11/780 System Configuration] - ditto | * [http://bitsavers.org/pdf/dec/vax/780/DEC_VAX-11_780_RP06_TE16_TU77_System_Config_198004.pdf RP06/TE16 and RP06/TU77 Based VAX-11/780 System Configuration] - ditto | ||
Latest revision as of 20:55, 15 May 2024
The DR780 High-Performance Channel Interface provided a high-performance parallel interface, the DR32 Device Interconnect (DDI), for the VAX-11/780, connected to its Synchronous Backplane Interconnect. The DR32 may be used to connect to high-speed customer equipment; alternatively, two may be used to connect two /780's to each other.
A maximum of one DR780 was supported per machine; it could not be installed in a machine which had a MA780 Multiport Memory Option. The DR780 was implemented on four extended hex cards, which mounted in a custom 6-slot backplane (DEC part number 70-16896-0-0); the backplane mounted in one 'Option Panel Space' in the CPU cabinet. The boards were:
| Slot | Board | Acronym | Function |
|---|---|---|---|
| 1 | M8296 | DSC | SBI Control Module |
| 2 | M8297 | DCB | Control Board |
| 3 | M8298 | DUP | Microprocessor |
| 4 | M8299 | DSM | Silo Module |
One slot (5) is unused, and one slot (6) is used (on the back of the backplane) to hold a hex M9046 DR780 Paddle Card, which carries the DR780 input/output on three BC06R flat cables to an 'External I/O Panel' in the back of the cabinet. From there, a BC06V cable connects to the user equipment.
See also
Further reading
- DR780 User's Guide (EK-DR780-UG) - not available online
- DR780 Technical Description (EK-DR780-TD) - ditto
- DR780 Field Maintenance Print Set (MP00835)
External links
- Modular Approach to Systems Test - contains a section on the DR780 (on pp. 3-20 of the PDF); includes detailed installation instructions
- VAX-11/780 Installation Manual (EK-SI780-IN-002) - contains a section on the DR780, Chapter 6 (on pp. 53-62 of the PDF)
- Dual RK07 Disk-Based VAX-11/780 System Configuration - contains a brief description of the DR780
- RP06/TE16 and RP06/TU77 Based VAX-11/780 System Configuration - ditto
