The Light Source Hub is a handy tool and instrument to provide you with different wavelengths to test the fiber equipment in a optical network and FTTx construction. The Light Source Hub is ideal for field or laboratory testing of optical communication systems at 1310 nm / 1550 nm / CWDM 1270 nm ~ 1610 nm ( 20 nm spans ) for all CWDM testing. It will also test 1490 nm for FTTx testing by changing the interchangeable SFP module. The Light Source Hub features zero warm up, superb productivity and