BayLan     BCR3X111UC4D 

Media Converter 10/100Base-TX to 10/100Base-FX Singlemode Simplex (Pair)
1310nm (Transmitter) + 1550nm(Receiver)

Features:

• Fiber media allow: Single mode Simplex fiber 40KM using SC connector;
• Link Pass Through Function
• Auto negotiation of simplex mode on TX port
• Auto MDI/MDI-X for TX Port
• Full write-speed forwarding rate
• Front Panel status LEDs
• Used as a status-alone device or with a chassis