... 1550nm, SC connector, operating distance 20/40/60km Dual single-mode fibers, single wavelength 1310 or 1550nm or CWDM wavelength, SC connector, ... , dual SC or LC, operating distance 275m Dual single-mode fiber, single wavelength 1310nm or 1550nm or CWDM wavelength, dual SC ... or LC, operating distance 20/40km Single single-mode fiber, dual wavelength 1310/1550nm, SC or LC, operating ...