Anritsu MS9710A Optical Spectrum Analyzer (OSA). Several options available but two units cannot be installed simultaneously. Only 06 option would work in conjunction with another one.
Specifications at a glance for the MS9710A: Specifications at a glance for the MS9710A:
* Wavelength Band: 600 nm - 1750 nm * Wavelength Accuracy: 0.3 nm * Dynamic Range: 70 db
* Polarization dependency: 0.05 dB (1.55 Microm band, resolution: 0.5 nm, 0.1 dB(1.3 Microm band, resolution: 0.5 nm)
* Anritsu Option List for Optical Spectrum Analyzers