Yes, when we switched from a 927 to an A400 I used the setup with a transceiver and had a switch with a coax connection. Worked very well. Don't use DTCs anymore.

Tom Hula

VSB



-----Original Message-----

From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Donna Hofmeister

Sent: Thursday, April 16, 2015 12:57 PM

To: [log in to unmask]

Subject: Re: [HP3000-L] DTC woes...



DTC Configurations for A & N-Class Servers



DTC connectivity to the HP e3000 A and N-Class servers has changed from the HP e3000 900 Series.



The e3000 900 Series can be connected to the DTC via a ThinLan (802.3)

(BNC) connection and cable.



The HP e3000 A and N-Class servers *do not* have a BNC coaxial 802.3 connector on the MFIO card and so must be connected to a DTC via the

internal RJ45 10/100 connector or a 10/100 network card.   (NOTE: Core I/O

connection requires MPE/iX 7.0 Express 1.)



An Ethertwist Transceiver (28685B or equivalent) can be used to allow a DTC to have an RJ45 connector.  Each DTC requires an Ethertwist Transceiver to allow RJ-45 connectivity.



Each DTC will be connected to a hub or switch on the network via a CAT-5,

RJ45 cable.  One DTC can be connected directly to the A or N-Class Server using a crossover CAT-5 cable, available from third-party vendors.



Multiple DTC’s using Transceivers must be connected to a HUB along with the A or N-Class server using normal CAT-5, RJ45 cables.



Two other ways that multiple DTC’s can be connected to an HP e3000 A and N-Class are:



   - Connect the first DTC to a 10Base-T Hub which has a BNC coaxial 802.3

   connector.  Multiple DTC’s could be connected via the original ThinLan

   cable using t-connectors and a terminator.

   - Connect all DTC’s to a 10/100 Hub using Ethertwist Transceivers on

   each DTC.









      - d





On Thu, Apr 16, 2015 at 9:54 AM, Craig Lalley < [log in to unmask]> wrote:



> OK, I was never a really big fan of DTC's but I always seemed to be 

> able to make them work.

> This time I am at a loss, I think I must be missing something obvious.

> I am trying to connect a DTC16mx to an A-class.   I have the MAC address.

> I put the mac address into NMMGR and configure the DTC.   The DTC messages

> of download started and completes show on the console.

> So it looks like I have fully communication to the DTC from the A-class.

> Next I am trying to hook up a terminal to the first port (I tried them

> all) in the DTC and the message I am getting on the terminal is

> can't establish the connection   (DTC01)

> It is like host switching is enabled, but that is not possible (that I 

> know of) with NMMGR.

> Has anyone dealt with this one before?

> -Craig

>

>

> * To join/leave the list, search archives, change list settings, *

> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *

>







--

Donna Hofmeister

Allegro Consultants, Inc.

408-252-2330

Visit us on Linkedin

<https://www.linkedin.com/company/allegro-consultants-inc->



* To join/leave the list, search archives, change list settings, *

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