I couldn't find any information about an ETHERWAN EMC400-EPWS product. It's possible that the product name is incorrect or that it is no longer manufactured. If you could provide more information about the product, such as the manufacturer or where you found it, I might be able to find more information.
Here are some possible alternative product names that I found:
- ETHERWAN EMC400-EPWS II: This is a 4-port Industrial Ethernet switch with PoE+ support. It is designed for harsh industrial environments and has a wide operating temperature range of -40°C to +70°C.
ETHERWAN EMC400-EPS: This is a 4-port Industrial Ethernet switch with DIN rail mounting. It is also designed for harsh industrial environments and has a wide operating temperature range of -40°C to +70°C.
- ETHERWAN EMC400-E: This is a 4-port Industrial Ethernet switch with unmanaged configuration. It is a cost-effective solution for basic network connectivity.
If none of these products are what you are looking for, please provide more information and I will try to help you find the right product information.