Yes, due to each RJ45 port of the ISW-511T / ISW-621T series supports auto negotiation and it can run at 10/100Mbps Half/Full-Duplex mode. Each Fiber port of the ISW-511T / ISW-621T series supports 100Mbps Full-Duplex mode.
Yes, it does. However, since the MGB-SX and other non wide temperature
SFP module cannot operate under -40 to 75 Degree C. Please pay attention
to this point.
Different operation temperature.
ISW-500 / 800: 0 to 60 Degree C
ISW-501T / 801T: -40 to 75 Degree C
With T model, it shall runs well in harsh environment.
The IGS-801M Managed Industrial Switch is implemented with "Rest" button. To reset the IP address to the default IP Address "192.168.0.100" or rest the password to default value. Press the hardware reset button at the bottom panel about 10 seconds. After the device is rebooted, you can login the management WEB interface within the same subnet of 192.168.0.xx.

Yes, it can. The IGS-10080MFT supports AC 24V power.
Yes, due to each RJ-45 port of ISW-511 / ISW-621 series support Auto negotiation and it can run at 10/100Mbps half / full-duplex mode, each Fiber port of ISW-511 / ISW-621 series support 100Mbps full-duplex mode.
We suggest you use the RS232 cable offered by PLANET because it may have compatibility issue.