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Conference 7.286::fddi

Title:	FDDI - The Next Generation

Moderator:	NETCAD::STEFANI

Created:	Thu Apr 27 1989
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2259
Total number of notes:	8590

2251.0. "DEMFA ... -AA or -AB Variant?" by SCASS1::auodial1_port3.auo.dec.com::korns () Mon Apr 28 1997 12:13

I've searched for all DEMFA related notes and can't find a definative
statement on this so I'm going to ask. 

The DEMFA (FDDIcontroller 400) has two variants, the -AA and -AB. The
-AB notes that it is for the VAX-9000 series. Notes within this conf
state that the -AA is for the 6000 series and that the only difference
in the two modules is in the IO bulkhead connection arrangement. 

What do I sell a customer who wants DEMFAs for use in VAX 7000 series,
in particular VAX 7820 and 7620. Do the 7000's share IO bulkhead
particulars with the 6000 or the 9000? The customer was told by a 
reseller to use the -AB (which reads as the 9000 version) but that 
implies the 7000s share IO bulkhead arrangements with the 9000. That
seems unlikely to me. Which is right?

Here are the current DEMFA descriptions out of VTX PRICE.

------------------------------------------------------------------------
DEMFA-AA 
         XMI to FDDI (SAS) Adapter              slot and two I/O panel     
         o For use on both XMI-1 and            units (4-inch by 4-inch)   
           XMI-2 bussed CPUs                  o DEC FDDIcontroller 400     
         o Requires a single XMI-bus  

------------------------------------------------------------------------
DEMFA-AB
         XMI-TO-FDDI (SAS) Adapter            a single XMI-BUS slot and    
         For use on VAX-9000 series.          (1)-I/O panel units (3.5"X   
         Can be used on both XMI-1 and        3.5") DEC FDDIcontroller_400 
         XMI-2 bussed CPUs.  Requires 
------------------------------------------------------------------------

T.R	Title	User	Personal Name	Date	Lines
2251.1	Not much help but...	KEIKI::WHITE	MIN(2�,FWIW)	`Mon Apr 28 1997 18:03`	5
	Same cable 4 feet from XMI to Cab kit. But different cab kit. DEMFA-AA has H3063-A while DEMFA-AB has H3063-B. Bill
2251.2	I'd order -AA	AFW4::CLEMENCE		`Tue Apr 29 1997 10:56`	1
	The 7000 was developed as a replacement for the 6000. I'd order the -AA
2251.3	End-of-life'd. Order fast.	JULIET::HARRIS_MA	Networks Sales Exec	`Tue Apr 29 1997 15:13`	4
	And do it quickly since DEMFA's were announced as end-of-life quite awhile ago... stock is probably getting low... Mark