The EXFO FTB-7200D-12CD-23B is a dual-wavelength optical time-domain reflectometer (OTDR) module engineered for comprehensive fiber network testing across LAN/WAN and access applications. This unit combines singlemode and multimode capabilities in a portable form factor compatible with EXFO platforms including the FTB-200, FTB-2/FTB-2 Pro, and FTB-500. The module delivers extended singlemode reach to 260 km paired with multimode coverage to 40 km, supporting rapid fault location and loss characterization with dead zones as low as 0.8 m to 1 m and acquisition times optimized for field efficiency.
## Technical Specifications
**Wavelengths & Dynamic Range**
• 850 nm ± 20 nm (Multimode): 27 dB typical
• 1300 nm ± 20 nm (Multimode): 26 dB typical
• 1310 nm ± 20 nm (Singlemode): 36–37 dB typical
• 1550 nm ± 20 nm (Singlemode): 34–35 dB typical
**Distance & Pulse Configuration**
• Singlemode range: 260 km maximum
• Multimode range: 40 km maximum
• Singlemode pulse width: 5 ns to 20,000 ns
• Multimode pulse width: 5 ns to 1,000 ns
**Resolution & Accuracy**
• Event dead zone: 0.8–1 m typical
• Attenuation dead zone: 1 m (multimode 850/1300 nm) to 5 m (singlemode)
• Sampling points: up to 256,000
• Sampling resolution: 0.04 m to 5 m (singlemode); 0.04 m to 2.5 m (multimode)
• Distance uncertainty: ±(0.75 + 0.0025% × distance + sampling resolution) m
• Loss threshold: 0.01 dB
• Loss resolution: 0.001 dB
• Linearity: ±0.03 dB/dB typical
**Source Output Power**
• 1300 nm (multimode): –1.5 dBm typical
• 1550 nm (singlemode): –7 dBm typical
## Key Features
• Controlled launch conditions for TIA-526-14-B and IEC 61280-4-1 Ed. 2.0 compliance
• EF-Ready compatibility with external launch mode conditioner (SPSB-EF-C-30)
• Multimode port fiber: 62.5/125 µm with 50/125 µm multimode support via launch conditioning
• sub-meter event detection capabilities
## Typical Applications
• Inside-plant and outside-plant fiber network commissioning and maintenance
• Rapid event location and loss quantification in access and LAN/WAN backhaul
• Multimode and singlemode fiber characterization in unified field deployments
## Compatibility & Integration
The FTB-7200D-12CD-23B integrates into EXFO’s modular FTB platform architecture, enabling portable, multi-function fiber test configurations without dedicated bench instrumentation.
