Manufacturer series reference image for Keysight N7776C-013, showing an N7776C labeled 1450-1650 nm. The manufacturer lists N7776C-013 as 1250-1370 nm; the pictured wavelength configuration differs.
Third-party reference photo of the exact Agilent 86146B. Background removed with an alpha-only manual mask. Screen content and installed options do not establish the configuration of the offered unit.