Difference between revisions of "Digital ETHERNET Q-Bus Network Adapter"

From Computer History Wiki
Jump to: navigation, search
m (error in name)
(→‎External links: "Category: DEC Network Interfaces" removed)
 
(9 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
[[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:
 +
 
 +
* Signetics SCN8051HCCN40 8-bit [[microcontroller]]
 +
* Fujitsu MB8795A [[local area network|LAN]] Node Controller
 +
* DEC DC336 QBUS Interface/[[Direct Memory Access|DMA]] Controller ([[DEC part number]] 21-21427-01)
 +
 
 +
{{semi-stub}}
  
 
==See also==
 
==See also==
  
−
* [[DELQA Ethernet QBUS Network Adapter]], the DEQNA's replacement
+
* [[DIGITAL Ethernet Local-Area-Network to Q-bus Adapter]], DELQA, the DEQNA's replacement
  
−
==Further reading==
+
==External links==
  
−
* DEQNA ETHERNET User's Guide (EK-DEQNA-UG-001)
+
* [http://www.bitsavers.org/pdf/dec/qbus/EK-DEQNA-UG-001.pdf DEQNA ETHERNET User's Guide] (EK-DEQNA-UG-001)
−
 
+
* [http://www.bitsavers.org/pdf/dec/qbus/MP01811_CKDEQNA_Qbus_Ethernet_Cable.pdf QBUS to Ethernet Cable Kit] (MP-01811)
−
{{semi-stub}}
 
  
−
[[Category: DEC Boards]]
 
 
[[Category: QBUS Network Interfaces]]
 
[[Category: QBUS Network Interfaces]]
 +
[[Category: Ethernet Interfaces]]

Latest revision as of 07:43, 16 October 2024

DEQNA M7504 board

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:

See also

External links

Retrieved from "https://gunkies.org/w/index.php?title=Digital_ETHERNET_Q-Bus_Network_Adapter&oldid=35358"