Digital ETHERNET Q-Bus Network Adapter: Difference between revisions
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[[Image:DEQNA.jpg|250px|right|thumb|DEQNA M7504 board]] | [[Image:DEQNA.jpg|250px|right|thumb|DEQNA M7504 board]] | ||
The '''DEQNA''' was [[Digital Equipment Corporation|DEC]]'s first [[QBUS]] to [[Ethernet]] [[network interface]]. It was a [[DEC card form factor|dual]] card, the M7504. | The '''Digital ETHERNET Q-Bus Network Adapter''' (short, and usual, name '''DEQNA''') was [[Digital Equipment Corporation|DEC]]'s first [[QBUS]] to [[Ethernet]] [[network interface]]. It was a [[DEC card form factor|dual]] card, the M7504. | ||
To pack all the functionality required onto a dual card (the early [[DEUNA]] takes two hex cards to hold the equivalent functionality), a number of complex [[integrated circuit|chips]] are used: | To pack all the functionality required onto a dual card (the early [[DEUNA]] takes two hex cards to hold the equivalent functionality), a number of complex [[integrated circuit|chips]] are used: | ||
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* Fujitsu MB8795A [[local area network|LAN]] Node Controller | * Fujitsu MB8795A [[local area network|LAN]] Node Controller | ||
* DEC DC336 QBUS Interface/[[Direct Memory Access|DMA]] Controller ([[DEC part number]] 21-21427-01) | * DEC DC336 QBUS Interface/[[Direct Memory Access|DMA]] Controller ([[DEC part number]] 21-21427-01) | ||
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==See also== | ==See also== | ||
* [[ | * [[DIGITAL Ethernet Local-Area-Network to Q-bus Adapter]], DELQA, the DEQNA's replacement | ||
==External links== | ==External links== | ||
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* [http://www.bitsavers.org/pdf/dec/qbus/MP01811_CKDEQNA_Qbus_Ethernet_Cable.pdf QBUS to Ethernet Cable Kit] (MP-01811) | * [http://www.bitsavers.org/pdf/dec/qbus/MP01811_CKDEQNA_Qbus_Ethernet_Cable.pdf QBUS to Ethernet Cable Kit] (MP-01811) | ||
[[Category: QBUS Network Interfaces]] | [[Category: QBUS Network Interfaces]] | ||
Revision as of 17:39, 5 November 2021
The Digital ETHERNET Q-Bus Network Adapter (short, and usual, name DEQNA) was DEC's first QBUS to Ethernet network interface. It was a dual card, the M7504.
To pack all the functionality required onto a dual card (the early DEUNA takes two hex cards to hold the equivalent functionality), a number of complex chips are used:
- Signetics SCN8051HCCN40 8-bit microcontroller
- Fujitsu MB8795A LAN Node Controller
- DEC DC336 QBUS Interface/DMA Controller (DEC part number 21-21427-01)
See also
- DIGITAL Ethernet Local-Area-Network to Q-bus Adapter, DELQA, the DEQNA's replacement
External links
- DEQNA ETHERNET User's Guide (EK-DEQNA-UG-001)
- QBUS to Ethernet Cable Kit (MP-01811)
