Re: [Apcupsd-users] Using the SU-3000's ethernet interface

[Kern S. <ke...@si...>]

Hello,

The simple answer is that a serial/USB cable is
absolutely necessary.  

The more complete answer is that
none of the developers ever had a network interface so
we have no idea what it is, how it works, or how to program
it.

With apcupsd the master is normally physically connected to
the UPS via serial or USB the slaves can all be connected
by standard TCP/IP no special network cards needed.  

Best regards,

Kern

On Sat, 2003-02-22 at 21:58, Neal Murphy wrote:
> On Saturday 22 February 2003 12:38 pm, David Walser wrote:
> > --- Neal Murphy <nea...@al...> wrote:
> > > Yup. I could do that. But that still requires the
> > > 'master' to
> > > be connected to the UPS via serial cable.
> >
> > Well..yes.  Something has to...
> ...
> > > Or have I completely misunderstood the functionality
> > > of the APC UPS
> > > ethernet interface, in that the UPSen can only be
> > > operated/monitored/
> > > controlled using a serial cable interface? Which
> > > would make the ethernet
> > > interface rather pointless and worthless....
> >
> > It's not worthless.  It does power spike protection.
> > You hook your computer to the UPS, and the UPS to the
> > network.  Granted this functionality is much more
> > useful on RJ-11 phone cords than RJ-45 ethernet
> > cables, but could still be useful depending on the situation.
> 
> Ah, I think what we might have here, is a failure to communicate!
> Especially on my part. :(
> 
> I'm using an SU3000RM with a network interface card installed.
> The network interface doesn't provide protection for the
> network. It provides a TCP/IP interface to the UPS. It has telnet
> and web interfaces, and may even have an SNMP interface.
> 
> I can telnet to the UPS to monitor and control it. With the network
> interface, I should not need the serial cable interface. But APCUPSD
> does not appear to have the capability to connect to the UPS via TCP/IP;
> to my dismay, it appears only to connect via serial cable.
> 
> So, can the APCUPSD connect to the UPS via TCP/IP or is a serial cable
> absolutely necessary?
> 
> Neal
> 
> 
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