[Nut-upsdev] Cyberpower CP550SL/AE550 Serial

Charles Lepple clepple at gmail.com
Wed Oct 19 14:34:56 UTC 2005

On 10/19/05, George McCollister <georgem at novatech-llc.com> wrote:
> I have an HP 4952A Serial Protocol Analyzer and a Cyberpower CP550SL.
> Once I get the CP550SL up and working in Windows over RS232 I'll hook up
> the 4952A and see whats going on. I'm not sure what it uses for default
> baud rate. The 4952A is limited to 38400.

Most UPSes use fairly low baud rates, so you should be OK.

To find out the baud rate, you could use portmon:


It would probably complement the HP analyzer nicely.

- Charles Lepple

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