RE: Question on Perle 494 Control Unit/Communications...

Chuck,

I seriously doubt that the Perl or any other x94 controller does what
you think it did.  As 5x94 controllers use SNA/LU6.2, they connect with
the AS/400 regardless of the status of it's attached devices.  Are you
100% certain that the Perl had power at this time?

BTW:

To test your theory try powering off all the local devices.  

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Chuck Lewis
Sent: Friday, June 11, 2004 2:59 PM
To: 'Midrange Systems Technical Discussion'
Subject: Question on Perle 494 Control Unit/Communications...


Hi Folks,

 

We had our largest distribution center down this morning for about 30
minutes - no power.

 

We use a frame relay network. Adtran DSU/CSU, Cisco Router, Perle Control
Unit w/Ethernet card, Netgear Switch and APC rack mount UPS.

 

While they were without power I could ping the Cisco Router, telnet into it,
etc. but I could not successfully ping the Perle Control unit. Get the
Controller Failed messages on QSYSOPR, etc.

 

So not being a communications guru by any stretch, but does the Perle "poll"
for responding devices to keep it's connection alive or something ? Reason I
ask is that the minute they got power back to the devices there were back up
and they touched absolutely nothing in the wiring closet.

 

Thanks !

 

Chuck

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