25 Aug
2016
25 Aug
'16
2:22 p.m.
You will need to terminate the coax.
(terminator)---------------<tap>------. . .
----<tap>----------------(terminator).
Typical installations would use "N" connectors.
For example http://tech.mattmillman.com/projects/10base5/
The cable segments on each end should be (at least about 3 feet) before the
first and last tap.
I say at least 3 feet, since I've forgotten the recommended length and the
whole transmission line reflection discussion of what a terminated
transmission like looks like was very heated at times. A "perfect' line vs.
a real line and all that.
Anyway, you need to terminate the line or your going to have so many issues
you may not even get a packet to make it from one end of the line to the
other.
On Thu, Aug 25, 2016 at 2:05 PM, Joseph Zatarski <jzatar2 at illinois.edu>
wrote:
Tuesday night, I got a small 2 node thicknet segment
going between my DEC
VXT2000 and my laptop. I took a quick demo video,
https://youtu.be/A5T2GlAN2N4
The hardware setup is as follows: I have a twisted pair (10BASET) to AUI
converter (a Lantronix LTX-C) (not to be confused with a 10BASET MAU) which
is connected to (and driving) a Cabletron coax MAU with 10BASE5 vampire
tap. This is connected to a small piece of 10BASE5 coax, which is
terminated with a 47 ohm resistor pushed into each end. This coax runs over
to an identical MAU with vampire tap, and an AUI cable connects it to my
DEC VXT2000.
Anyway, I hope to demo a larger 10BASE5 network at VCF MW, but I need
outside help since I only have two AUI capable devices (the LTX-C and my
VXT2000). So if you're going to be at VCF MW, and you've got some gear with
AUI on it, bring it along and I can hook you up. I have about 50m of cable
I think, and plenty of MAUs, but I'm short on AUI cables with both ends on
it, so bring along any you have if you'd like to connect.
Regards,
Joe Zatarski