Weidmueller SDEH-HTX-IE-POF

Therefore, SDEH-HTX-IE-POF is probably a component used in industrial Ethernet networks that utilizes Plastic Optical Fiber. It could be a switch, media converter, network interface card, or some other device.  To find the exact product, you'll need to search online using the full designation "SDEH-HTX-IE-POF" and any relevant context (e.g., the industry it's used in).