Ken,

If that part was damaged (and then removed on purpose) there could be damage to 
the Ethernet Transceiver itself or a few of the other parts that support the 
transceiver.  Obviously, send it back.  For grins, you might try setting your 
computer interface to 10Mbit just to see what it does

Paul

From: Af [mailto:af-bounces+paulm=pdmnet....@afmug.com] On Behalf Of Ken Hohhof 
via Af
Sent: Sunday, September 28, 2014 12:13 AM
To: af@afmug.com
Subject: Re: [AFMUG] missing part on Canopy SM

Could be, but it looks like it was cleanly desoldered.  Seeing up close is not 
one of my superpowers though, not for quite awhile now.

I was just trying to configure it at the office.  Ethernet bounces up and down, 
and LEDs don’t seem to go through the regular sequence.  I did once get into it 
at 192.168.1.1 which is strange because it was supposed to be defaulted, NAT 
was enabled.

Strange.


From: Paul McCall via Af<mailto:af@afmug.com>
Sent: Saturday, September 27, 2014 10:36 PM
To: af@afmug.com<mailto:af@afmug.com>
Subject: Re: [AFMUG] missing part on Canopy SM

Could be that when the part came off, a trace went with it

From: Af [mailto:af-bounces+paulm=pdmnet....@afmug.com] On Behalf Of Ken Hohhof 
via Af
Sent: Saturday, September 27, 2014 11:07 PM
To: af@afmug.com<mailto:af@afmug.com>
Subject: Re: [AFMUG] missing part on Canopy SM

So the missing part doesn’t explain why it doesn’t work.  It came with a 
guarantee, so I’ll send it back to the seller.

From: Paul McCall via Af<mailto:af@afmug.com>
Sent: Saturday, September 27, 2014 9:47 PM
To: af@afmug.com<mailto:af@afmug.com>
Subject: Re: [AFMUG] missing part on Canopy SM

Gerard is correct.  An SM will function without it, though it makes the 
Ethernet less than protected from basic transient surges (even little ones).

I would suggest replacing it

From: Af [mailto:af-bounces+paulm=pdmnet....@afmug.com] On Behalf Of Gerard 
Dupont III via Af
Sent: Saturday, September 27, 2014 10:28 PM
To: af@afmug.com<mailto:af@afmug.com>
Subject: Re: [AFMUG] missing part on Canopy SM

It's a Transient Voltage Suppressor. I haven't tested others, but I know 100 
will function just fine without it. In a pinch I remove them to fix ethernet 
errors. I think this is the right part number if you wanted to replace it. 
RCLAMP0504FCT

Gerard


On Sat, Sep 27, 2014 at 10:19 PM, Ken Hohhof via Af 
<af@afmug.com<mailto:af@afmug.com>> wrote:
Anybody know what that little 6-leaded SMD is between the RJ45 jack and the 
Ethernet transformer on the PCB of a Canopy SM?  We bought a used SM that 
doesn't work (it lights up and seems to be trying) and that part is missing. I 
don't think it's optional.  But is its absence causing the problems?  Or just 
an indication that a tech didn't finish repairing it and mistakenly marked it 
as tested and good?

If it's a surge protection component, it seems too small to do much good.

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