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Entry  Sun Dec 21 14:18:04 2008, Yoichi, Update, Computers, RFM network bypass box's power supply is dead  
    Reply  Mon Dec 22 13:48:22 2008, Yoichi, Update, Computers, RFM network bypass box's power supply is dead  
Message ID: 1200     Entry time: Sun Dec 21 14:18:04 2008     Reply to this: 1201
Author: Yoichi 
Type: Update 
Category: Computers 
Subject: RFM network bypass box's power supply is dead  
I restarted the front-end computers by power cycling them one-by-one.
After issuing startup commands, most of them started normally at least by looking
at the output from telnet/ssh.
However, the status monitors of the FE computers on the EPICS screen are still red.
I noticed that all the LEDs on the VMIC 5594 RFM network bypass box are off.
According to the labels, fb40m, c0daqctrl, c0dcu are connected to the box.
This means (I believe) c1dcuepics cannot access the RFM network. So we have no control over
the FE computers through EPICS.

I pushed the reset button on the box, power cycled it, but nothing changed.
I checked the fuse and it was OK. Then I found that the power supply was dead.
It is a small AC adapter supplying +5VDC with a 5-pin DIN like connector.
We have to find a replacement.
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