Re: [foxboro] REPLACE DNBI WITH DNBT

You may have to set your transceiver type on the 3Com Ethernet Card.
I know I have had problems when it was set to auto. You have boot from
the
3Com utility diskette to change the transceiver type.

Good Luck !

Regards,
Patrick Gosselin, CTech
System Service
Invensys Foxboro


-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Pablo Lioi
Sent: Tuesday, November 21, 2006 5:42 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] REPLACE DNBI WITH DNBT

=20
Hi list,=20

I need to move an AW70 (very old one, Pentium 300 Mhz running I/A NT
Nodebus
6.5.1) from its current location (close to the I/A system cabinet) to a
room
some 60 m away. The AW connects to the nodebus through a DNBI interface.
As
Idon't have a thicknet (AUI) cable long enough, I will replace the DNBI
with
a DNBT.=20

I have a working set of DNBT+cables (tested in a separate system).
Before
moving the AW, I made a test to make sure the new configuration would
work.
BUT IT DIDN'T!!!!=20

This is how I proceeded:=20

1 - I configured the Nodebus NIC (3Com Etherlink III - ISA) with media
type
10Base T (It was previously configured with Thicknet-AUI). I have a
second
ethernet card, a 3Com Etherlink XL PCI, connected to the maintenance
ethernetnetwork.=20

2 - Rebooted the AW, with the new cables and DNBT (with proper
letterbug)
installed=20

After this, the nodbus never came up again. I rebooted the DNBT and the
AW a
couple of times with no result. As a bonus, the second card didn't link
to
the ethernet network either.=20

I made the same test with a second set of cables+DNBT, with the same
result.


The "Nodebus Activity" "TP Activity" and  "Link" leds of the DNBT were
off
all the time. The module helth green led was on and the red one was off.


I know that my cables are OK and my DNBT is OK. I know that I connected
the
DNBT to the correct NIC. I can only think I have a configuration problem
(should I recommit? I think not...., the DNBx's are level converters
only,
according to Foxboro)=20

So I changed my NIC configuration back to AUI, reinstalled the DNBI and
rebooted. After that the system was up and running again..... except for
the
second NIC, that never worked again....=20

I think maybe my second NIC was damaged in the process......=20

Has anybody had a similar problem?.....=20

Regards=20

Pablo Lioi=20

Systems Engineer=20

TOTAL AUSTRAL S.A.=20

Tierra del Fuego=20

Argentina=20

=20

------------------------------------------------------------------------
----
Express yourself instantly with MSN Messenger! MSN Messenger[1] Download
today it's FREE!=20

--- Links ---
   1 http://g.msn.com/8HMAEN/2737??PS=3D47575
=20
=20
_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
=20
foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         =
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin
to unsubscribe:      =
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave
=20


 
 
_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
 
foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave

Other related posts: