Low cost 4 E1/ T1 Fiber Optic Multiplexer - AC powered Operating Distance:Multimode 2km, 1310nm You can have the transponder

You can have the transponder installed in the small FRM220-CH02M casing with choice of AC

Operating Humidity: 10% to 90% (non-condensing)

3 miles) in a typical application

good electrical insulation

Housed in a deluxe metal casing

Low cost 4 E1/ T1 Fiber Optic Multiplexer - AC powered Operating Distance:Multimode 2km, 1310nm You can have the transponderThe FMUX04 model is perfect choice for small capacity, budget oriented applications. FMUX04 was developed with customer requests in mind: a very low cost solution, still with optional SNMP management support, desktop but also rack mountable, only 4T1 E1 and orderwire interfaces besides the fiber optic port. FMUX04 is already a huge success. Telephone companies, especially expanding mobile telephone companies are using FMUX04 to build their network