The EXFO IQ-206 Expansion Unit with two IQ-3100 Variable Attenuator modules extends the capacity of the IQ-200 Optical Test System for high-performance fiber optic network testing. This modular expansion unit provides six slots for additional test modules and connects via EXFO interface cable or SCSI to the IQ-203 Control Unit, or directly to a standard PC through an expansion card. Up to four IQ-206 units can be cascaded with an IQ-203 Control Unit to achieve a total of 27 high-performance optical modules, making it suitable for manufacturing, research, and development environments requiring scalable test capacity.
Technical Specifications
The IQ-206 Expansion Unit houses six module slots and connects to the IQ-203 Control Unit (Pentium processor-based) via EXFO interface cable or SCSI. Each IQ-3100 Variable Attenuator module delivers programmable attenuation across the complete WDM spectrum with maximum attenuation of 100 dB and accuracy maintained within ±0.1 dB.
– Key Features
• Three attenuation modes: absolute, relative, and X+B
• Repeatable attenuation sequencing up to 100 steps per cycle
• Dwell time capability up to 1000 hours per step
• Maximum attenuation range of 100 dB
• Attenuation accuracy within ±0.1 dB across WDM spectrum
• Windows-compatible IQ-200 Software control (identical interface whether driven by IQ-203 Control Unit or expansion card)
• GPIB (IEEE-488.2) and RS-232 communication interfaces
• LabVIEW drivers and OLE/OCX controls available
• Supports automated testing for high-throughput component qualification
– Typical Applications
Optical component manufacturing and qualification. Fiber optic network testing in R&D environments. Wavelength-dependent optical characterization requiring repeatable, programmable attenuation sequences.
– Compatibility & Integration
Integrates with IQ-200 Optical Test System via IQ-203 Control Unit or PC expansion card (ISA or PCI formats). Supports daisy-chaining of up to four expansion units for scalable system growth.
















