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- Newsgroups: comp.sys.dec
- Path: sparky!uunet!decwrl!pa.dec.com!granite.pa.dec.com!ajc
- From: ajc@pa.dec.com (AJ Casamento)
- Subject: Re: Turbochannel Adapter for 4000-60?
- In-Reply-To: tihor@acf3.NYU.EDU's message of 21 Aug 92 13:17:00 GMT
- Message-ID: <AJC.92Aug21153726@thendara.pa.dec.com>
- Sender: news@PA.dec.com (News)
- Organization: Digital Equipment Corporation
- References: <1992Aug20.115911.24684@engage.pko.dec.com> <59010006@acf3.NYU.EDU>
- Date: 21 Aug 92 15:37:26
- Lines: 50
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- In article <59010006@acf3.NYU.EDU> tihor@acf3.NYU.EDU (Stephen Tihor) writes:
-
-
- >> But DEC has already discussed and mayvbe even announced a TURBOchannel
- >> expansion option, one card in the main TC links to a three card expansion
- >> box. So why physically expand the small boxes to make room while there
- >> are people who only need 1?
-
-
- Stephen,
-
- Ummm, not exactly. The product you are referring to is not a TURBOchannel
- Expander. But rather, a TURBOchannel Extender. The difference is that you can
- still only put ONE logical TURBOchannel option in a TURBOchannel Extender. It
- just gives you the additional real estate and power. This was particularly set
- up for DECstation customers who wanted to use the PXG TURBO in conjunction with
- an FDDI option.
-
- Since we could not get OS support for a TURBOchannel Expander (which would
- take the slaved address space for a system TURBOchannel slot and divide it up
- into slaved addresses for additional logical TURBOchannel options in the
- external box) the Extender was the next best thing.
-
- The external box does allow you to add additional storage devices though. It
- will support two half height hard disks and one half height removable media.
- Not surprising since it is built off of the DS5000/1xx system box.
-
- I hope that this clears up the confusion.
-
- Related Question:
-
- How many people would like to have a VAX (VAXstation or VAXsystem) with more
- TURBOchannel slots (and how many slots make a "reasonable" configuration)?
-
-
- Thanx,
- AJ
-
-
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