benderly@cs.columbia.edu (Dan Benderly) (09/15/90)
I have two computers to connect via Arcnet (long historical story as to how I got them). Basically, my question is whether a hub is needed. or whether I can simply connect the two Arcnet cards together with a coax cable of the right type. These Arcnet cads are the basic, Novell-type cards -- not high impedance, etc. If I need a hub, is a passive hub sufficient? The two computers will be very close to each other. Thanks! Dan benderly@cs.columbia.edu
lcz@dptspd.sat.datapoint.com (Lee Ziegenhals) (09/17/90)
benderly@cs.columbia.edu (Dan Benderly) writes: >I have two computers to connect via Arcnet (long historical story as to how I >got them). Basically, my question is whether a hub is needed. or whether I can simply connect the two Arcnet cards together with a coax cable of the right >type. These Arcnet cads are the basic, Novell-type cards -- not high >impedance, etc. Dan, no hub is needed for this. Since the physical configuration of an Arcnet is basically a star instead of a bus, each node is terminated in the proper (93 ohm) impedance. You can just string a piece of coax between the two computers. Lee Ziegenhals lcz@sat.datapoint.com
Tim.Radbourne@p5.f60.n140.z1.FIDONET.ORG (Tim Radbourne) (09/19/90)
> From: benderly@cs.columbia.edu (Dan Benderly) > Organization: Columbia University Department of > > I have two computers to connect via Arcnet (long > historical story as to how I > got them). Basically, my question is whether a hub is > needed. or whether I can simply connect the two Arcnet > cards together with a coax cable of the right > type. These Arcnet cads are the basic, Novell-type > cards -- not high > impedance, etc. > > If I need a hub, is a passive hub sufficient? The two > computers will be very > close to each other. Just hook them up direct. No hub is needed. Has worked fine for me. -- Tim Radbourne - via FidoNet node 1:140/22 UUCP: ...!alberta!herald!weyr!60.5!Tim.Radbourne Domain: Tim.Radbourne@p5.f60.n140.z1.FIDONET.ORG Standard Disclaimers Apply...
my@dtg.nsc.com (Michael Yip) (09/20/90)
For the normal Arcnet ... you can connect any two stations point-to-point. you can connect more than two stations using active/passive hubs to form a star/tree type of network. For the Hi-Z Arcnet ... you can connect up to 8 (I think) Hi-Z stations on a bus. you can connect the bus together via active hub or what they called active links. in general, you should not mix the Hi-Z and the normal Arcnet together on the same cable segment. But ... in some cases, it will work. -- Mike
kenh@techbook.com (Ken Haynes) (09/20/90)
You can connect the two workstations together without the need of any
hubs. If you decide to expand your LAN, you will need *at least* a
passive hub, depending on the number of nodes and the distances. A rule
of thumb when working with arcnet is passive hub to anything is max 100 ft.
Active hub to anything (including other active hubs) is max 2000 ft. A
workstation or server is considered an active hub for purposes of this
formula.
Ken
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