For example: Agilent E4440A or Anritsu 68369
Plug In / Part / Component / Module
Rohde and Schwarz NGMO1
PROGRAMMABLE ANALYZER DC POWER SUPPLY WITH EMULATION FUNCTION, 0-15V /0 TO 2.5(5)A

Manufacturer: Rohde and Schwarz
Rohde and Schwarz NRP-Z5
Sensor hub, for up to 4 R&S®NRP sensors, with trigger input and output, for connection to PC and R&S® equipment

Manufacturer: Rohde and Schwarz
Rohde and Schwarz NRT-Z2
30 meters extension cable for NRT-Z power sensors

Manufacturer: Rohde and Schwarz
Rohde and Schwarz NRT-Z5
USB Interface Adapter for NRT Power Sensors

Manufacturer: Rohde and Schwarz
Teseq (Schaffner) NSG203
NSG203 AC Variations and Interruptions Plug-In

Manufacturer: Teseq (Schaffner)
Fluke Networks OFTM-5731
SM OTDR MODULE WITH OPTIONAL POWER METER, EXTENDED RANGE

Manufacturer: Fluke Networks
Fluke Networks OFTM-5732
SM OTDR FIBER TEST MODULE WITH OPTIONAL LOSS/LENGTH CERTIFICATION

Manufacturer: Fluke Networks
Tektronix OM2210
Coherent Receiver Calibration Source; includes calibration software (requires choice of lasers)

Manufacturer: Tektronix
Tektronix OM4006D
23 GHz Coherent Lightwave Signal Analyzer (requires choice of lasers)

Manufacturer: Tektronix
Tektronix OM4106B
32GHz Coherent Lightwave Signal Analyzer (requires choice of lasers)

Manufacturer: Tektronix
Tektronix OM4106D
33GHz Coherent Lightwave Signal Analyzer (requires choice of lasers)

Manufacturer: Tektronix
Tektronix OMADDLSW
Additional seat of Coherent Lightwave Signal Analyzer Software (requires 4106 instrument serial number)

Manufacturer: Tektronix
Fluke Networks OPVS3-GIG/W
OPTIVIEW SERIES 3 GIGABIT WITH WIRELESS OPTION

Manufacturer: Fluke Networks
Rohde and Schwarz OSP120
Base unit OSP120 (without display) - Manual operation via USB keyboard and ext. monitor (DVI)

Manufacturer: Rohde and Schwarz
Rohde and Schwarz OSP130
Base unit OSP130 (with display): - Manual operation via display and control panel

Manufacturer: Rohde and Schwarz