Part Number CWM-4-D-1-4-B-L-B Fiber Optic Switches Multiplexers Demultiplexers in stock with ready to ship. Get an instant quote for Lightel Technologies Inc part number CWM-4-D-1-4-B-L-B by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for CWM-4-D-1-4-B-L-B. Our dedicated account manager will get back to you within 15 minutes.