Re: Weirdo Twinax Address Problem

["Joe Frank" <jfrank@xxxxxxxxxxx>]

Jeff, 

Four posibilities, in the order of liklihood:

1. The new printer is terminating the cable 
causing the twinax to be doubly terminated. 
Look for a terminating switch or check the 
documentation regarding termination.

2. The cable you used to attach the new printer 
is defective.  Check it out with a tester and
carefully examine the pins for looseness.

3. The twinax controller in the AS/400 has a 
defective port.

Hope this helps.

Joe Frank
Synapse Communications, Inc.


Jeff Crosby wrote:
> 
> I guess one has never seen it all because I saw a new one yesterday and
> today. <g>
> 
> I got a new IBM 6400 printer yesterday.  My twinax port 0 cabling looks
> like this:
> 
>         Console (3180 display) at address 0
>         Printer (Anzac 5080) at address 1
>         Printer (Anzac 3017) at address 2
> 
> The above is also the _physical_ cabling device order.  I set this new
> printer to address 3 and tried to physically cable it in between the 2
> existing printers on port 0.  All 3 devices were powered off during
> these attempts.
> 
> It wouldn't work.  When I would power the console back on, there was no
> display.  Doing a WRKCFGSTS at another display showed the console as
> SIGNON DISPLAY, but the console screen was blank.  I didn't even try the
> 2 existing printers.  No print device was autoconfigured for the new
> printer.  It was as if the twinax card in the new printer was DOA or
> something.
> 
> This morning I tried something different.  I had an open port (port 7)
> on the AS/400 with no devices on it.  I ran a cable from this port on
> the AS/400 to the new printer and powered it on.  The AS/400
> autoconfigured it just as I expected, device type 4234 address 3.  I
> have not tried recabling it into the port 0 string where I really want
> it.
> 
> Has anyone seen this?  Is there some restriction on port 0 (other than
> address 0 for the console) that I evidently don't know about?  Is this
> new printer so new that it won't coexist on the same port with that
> ancient 3180 and Anzac printers? <g>  Will the AS/400 not autoconfigure
> on port 0?
> 
> Thanks for any help.
> 
> --
> -Jeff
> 
> jlcrosby@fwi.com
> +---
> | This is the Midrange System Mailing List!
> | To submit a new message, send your mail to MIDRANGE-L@midrange.com.
> | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
> | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator: david@midrange.com
> +---
+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---