Super-duper straightforward poller for the APC AP7641 series of rack PDUs. I had some issues getting mine to expose any useful data via ethernet without buying expensive software from APC, so I scribbled this tool to observe the current output via the RS232 port. It is very simple and quite brittle - it works fine for me but it might not for you. You'll need a cable, too. The RJ12 at the PDU can be wired to a DB9 like this: APC PC pin 1 NC X pin 2 GND pin 5 pin 3 rx pin 2 pin 4 tx pin 3 pin 5 NC X pin 6 NC X
randomdude/ap7641poller
Simple, dirty, Python script to pull power use from APC AP7641 PDU via rs232
Python