[foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO SWITCH
- From: "Johnson, Alex (Foxboro)" <ajohnson@xxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Mon, 24 Mar 2003 19:35:14 -0500
Equipment configuration and DNBIs
With regard to how to connect the equipment, this may help:
1. The CP-60 plugs into the standard I/A Series 1x8 enclosure or equivalent.
2. The two NCNIs plug into the same enclosure. Each NCNI attaches to exactly
one port on one switch.
3. The two Ethernet switches are not interlinked.
4. Each switch has a port that connects to the same RCNI, i.e., one RCNI
connect to each switch.
5. A given RCNI attaches exactly one Workstation to an Ethernet switch. The
workstation connection - as with the DNBI - requires an Ethernet port and a
serial port.
So, while it is true that you do not use DNBIs with the new workstations and
Ethernet switches, you do need to use an RCNI which is very, very similar in
function if not form factor.
I'm afraid that I have not investigated the situation with a non-redundant
Control Network in any detail.
Ethernet Switches:
We sell several switch models: some copper and some fiber. Our vendor is
Entrasys (a merger of Wellfleet and Cabletron). We will (or have) certify an
equivalent Cisco switch. We also allow the use of non-Invensys certified
switches.
So, you may use any standard High-Speed Ethernet switch, but please be aware
that we cannot offer the same degree of support for other switches.
Cost of Ethernet Switches:
I really can't comment on cost, but fiber switches from name brand vendors
are not cheap. On at least one occasion in the US, I saw the same switch as
our Fiber Optic Switch offered for 1000 USD more than our US list price. So,
on this topic at least, I believe we are competitive with the market (in the
US anyway).
I hope this helps.
Alex Johnson
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx
For the latest information on ArchestrA, go to
www.invensys.com/Archestra.html.
-----Original Message-----
From: Power Products [mailto:power_products@xxxxxxxxxxx]
Sent: Monday, March 24, 2003 6:06 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] RCNI, NCNI, FO SWITCH
Anybody know anything with NCNIs and RCNIs?
I want to do the following - CP60 connect to nodebus with 2 x NCNI, AW70
connected to nodebus with 1 x RCNI. My question is connecting the NCNI to
RCNI, I will use fiber optic switches, do these switches have to be anything
special? Do I have to get switches from Foxboro? They seem big price!
does somebody know some switch that is good?
Otto Aichinger
Power Production
Austria
_________________________________________________________________
The new MSN 8: advanced junk mail protection and 2 months FREE*
http://join.msn.com/?page=features/junkmail
_______________________________________________________________________
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: //www.freelists.org/list/foxboro
to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
_______________________________________________________________________
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: //www.freelists.org/list/foxboro
to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
Other related posts:
- » [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO SWITCH
