4 Fast Ethernet ports, Auto-negotiation speed, Auto Full/Half Duplex Mode, and Auto MDI/MDI-X connection 2*100BaseFX ports, SC connector default, Maximum 120km distance Wide range voltage 12 to 48V DC power input, Dual Supply Metal housing with IP40 protection, support high EMC level DIN-Rail Mounting and Wall Mounting supported Wide Operating Temperature (-40 to 85°C) to satisfy harsh industrial environment.
Ordering Model Code : IES 104-2F-XX00-YY-DC
IES 104 : Base Code for Unmanaged Switch with 4*10/100TX Copper Ports
2F : 2 * 100FX Fiber Ports
XX : Fiber type
MM for Multimode, SM for Singlemode. Singlemode is by default
00 : Fiber distance. 20Km by default for Singlemode
YY : Fiber Connector
SC for SC Connecter, ST for ST Connector
DC : Fixed for DC Supply
Datasheet 
