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I am going to try to buy two baluns that will have been tested to
communicate with each other to (eventually) eliminate the baluns as a
In the meantime...
Is it possible to verify that the 2720 card is working? I removed the card
and i'm pretty sure the front panel SRC output was the same in both "N" and
"M" settings. I may have to do this again to refresh my memory. I was
hoping the machine would display a result code that the twinax adapter was
missing from slot C08 when it was not in the pci slot. I wish there was a
way to rule out whether the 2720 is detected and operating, or not, when
installed in the server.
The machine came with a 2722 card with the DB25 connector, but I don't have
a 8-port block or cable to connect to the DB25.
I reached out to CLI about termination and the support team said the CLI
5476 was self-terminating. The terminal has a DB15 Y cable with 2 female
twinax sockets. I have a twinax terminator. I could try connecting the
terminator but perhaps my baluns are broken.
I have one RJ45 balun that ends in a 4 (45-4), and two that end in a 5
(45-5). I assume this is the polarity of pins 4 and 5. Is it possible to
use a crossover ethernet cable with one 45-4 and one 45-5 balun? Or, do I
just simply have to have two baluns that both end with the same digit (both
being 45-4 or 45-5)? Wondering if I could mix the baluns with a crossover
cable to identify if one of the 45-5 baluns is bad. Or, maybe I need to
use a crossover ethernet cable with two 45-5 baluns. Apologies if this is
documented somewhere - i've looked but the Enchiridion of Twinax Magics has
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This thread ...
Re: CLI 5476 with 2720 -9406 compatibility, (continued)
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