Official Keysight 81613A manufacturer reference image. The exact 81613A label is visible on the fourth module from the left. The other return-loss modules are illustrative companion products.
Supplier reference photograph showing an Agilent J4233A SpectralBER DWDM 1310 nm transmitter module with four optical outputs, connector caps and cap chains. Confirm the offered connector option, supported rates, physical condition and included accessories.
Official 819xxA family reference for 81989A, pictured 81960A. The photographed model label and configuration differ from 81989A and must remain disclosed.
Official 81480A front-panel drawing from Figure 5 of the manufacturer manual. This is a manufacturer illustration; connector configuration and actual used-unit appearance must be confirmed.
Official N777-C tunable laser family reference showing N7776C. The same manufacturer data sheet explicitly covers N7778C value-line specifications. The pictured N7776C top-line accuracy and spontaneous-emission performance do not describe N7778C. Wavelength, power, and accuracy options remain unverified.
Official N7776C top-line tunable laser source reference from the N777-C family data sheet. Wavelength range, power, and connector options vary; the family-wide 1240–1650 nm span is not a single unit's tuning range.
Official 819xxA family reference for 81940A, pictured 81960A. The photographed model label and configuration differ from 81940A and must remain disclosed.
Official 8160xA family system reference for 81606A, showing an 8164B lightwave mainframe with a bottom-slot tunable source and other modules. This is a complete reference configuration; the mainframe and other modules are not established as included with the laser module.
