First, not sure if this question belongs here or SU, so please advice accordingly before wildly down-voting or blasting me.
We have a UPS unit for which we recently configured to work on our network. The UPS unit uses an AP9606 network card, but also has what looks to be a serial port for terminal use (putty is awesome). I am NOT familiar with the latter. Long story short, I was able to configure network adapter using telnet. All was good.
For whatever reason, when we reboot our machine that we had configured for auto-shutdown with our UPS unit, the NIC on the UPS seemingly just dropped it's IP configuration (still trying to figure that one out). Ever since, any attempt trying to make contact with the NIC fails.
Steps attempted thus far:
- I did manual arp entry to reach out to as per these instructions.
- Hit the reset button, and the reattempted the previous step.
- Ran WireShark while attempting previous steps to see if the NIC's MAC or IP appeared anywhere for ARP requests.
The only thing that seperates me from the UPS unit is 48p switch, so there shouldn't be any network filtering within the same subnet. I don't have any way of telling if the card is just wnt bad, or if I really have to attempt the serial as these instructions. Because we inhereted the UPS unit, this smart-signalling cable is nowhere to be found. However, I have here in hand a Cisco YC Cable that looks like it could work, but I am having hard time trying to find the wire configuration to see if they would match up. OTOH, getting this APC cable would also mean I would have to find an antiquated computer that also has a serial port.