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Sun Blade 2500 Have an APC Smart UPS that won't talk to serial port. UPS is OK because it works on another Sun Blade 2500. I have compared the port setups on both machines and they are the same. This used to work. The only thing I can come up with is that the port is faulty.

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The port may be faulty, but you may also not have the software installed in the server to talk to the UPS.

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