[comp.sys.hp] HP Starlan 10 and 10BaseT

AMillar@cup.portal.com (Alan DI Millar) (03/14/91)

Hi-

    I have recently inherited some HP Starlan 10 equipment, with little
documentation.  I have 2 of the hubs, and a few of the PC cards.  The
hub installation manual says the hubs are compatible with the 10BaseT
drafts, but this is (I think) a year or two old.

    Does anyone have more information on the HP Starlan 10 equipment?  I'm
interested in knowing if this is the same as the older AT&T Starlan
hardware.  I remember reading somewhere that some early 10BaseT equipment
can work with the final standard, if it has the option to disable a
particular feature (link integrity?).  If so, how about this stuff?
Also, anyone know of a packet driver for these cards?

    I apologize for the vagueness of this posting, but I'll appreciate
any help.  Thanks.

- Alan Millar

cmilono@netcom.COM (Carlo Milono) (03/15/91)

In article <40106@cup.portal.com> AMillar@cup.portal.com (Alan DI Millar) writes:
>Hi-
>
>    I have recently inherited some HP Starlan 10 equipment, with little
>documentation. (stuff deleted)
>
>    Does anyone have more information on the HP Starlan 10 equipment?  I'm
>interested in knowing if this is the same as the older AT&T Starlan
>hardware.  I remember reading somewhere that some early 10BaseT equipment
>can work with the final standard, if it has the option to disable a
>particular feature (link integrity?).  If so, how about this stuff?
>Also, anyone know of a packet driver for these cards?
>
Thank god for standards.  Both H-P, whose Pat Thaler chaired the IEEE,
and AT&T waited until the 10BaseT standard was at least stable before
putting equipment on the market.  Early Synoptics and Cabletron stuff
won't work with anything else at the twisted-pair level...if you got
some, you can interconnect with the AUI port.  

Link Integrity was the final draft inclusion, it being the bone of 
contention.  I don't believe that H-P put out anything that wouldn't
interoperate with the Draft 9 standard (LI excluded)...and neither
did AT&T...so I am confident you can interconnect those two vendor's
stuff.

If I'm wrong...well, Pat will correct me!

-- 
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erics@hpindda.cup.hp.com (Dale McAtee) (03/16/91)

Alan,

The HP StarLAN-10 cards come in two flavors.  The first were (except for the
wiring drivers) equivalent to the 3Com 3C501 EtherLink card.  If you have 
drivers for the 3C501 cards (including Clarkson packet drivers) they will
work with the card.  The card is known as a D1802A or a HP27236A card.  You
will see the numbers 27236-xxxxx somewhere in the card.

The next generation of HP StarLAN-10 cards were a much improved design, with
32K of buffer memory (compared to 2K for the 3C501 design).  This card is 
known as the D1808A card, or as the HP27240A card.  It will have the 
numbers 27240-xxxxx somewhere on the card.  Recently there has been added a
HPLAN driver to the Clarkson Packet Driver Collection.  From a driver
perspective, the HP27240A cards are the same as the HP27245A EtherTwist 
10-Base-T card, so the HPLAN drivers should work for it.  

The HP EtherTwist 10-Base-T cards can be connected to the HP StarLAN-10 hub,
the only thing that needs to be done is to disable the "linkbeat" integrity
checking on the card, via a dip-switch.  

If you need NDIS drivers for the HP27236A cards, look in the 3Com forum on
CompuServe for 3C501 EtherLink drivers.  If you need NDIS drivers for the 
HP27245A StarLAN-10 PC Link II card, look for the NDIS drivers in the 
New Uploads or Vectra file section in the HP forum on CompuServe.  Again,
these will be called drivers for the HP2724X EtherTwist cards...

As always, these are personal comments, no warrenties, written or implied,
from the commisioner of baseball, Hewlett-Packard, etc....

-Dale McAtee