Fiber Optical Converter G.703-C37.94 E1 820nm Multimode
21-219 is an electro optical multiplexer between one G.703/704 E1 and two IEEE C37.94 (C3794) optical ports. The two IEEE ports are fully mapped into G.703 (G703) standard frame structure of the E1 port, allowing for further SDH/ PDH multiplexing and de-multiplexing. 21-219 derives it synchronization from the network port (E1) or from an internal 2048Kbps PDH compliant clock enabling it to...