DEV 7251 & DEV 7333 DWDM L-Band RF over Fiber Link

DEV 7251 & DEV 7333 DWDM L-Band RF over Fiber Link 

The DEV 7251 and DEV 7333 DWDM L-Band RF over Fiber Link provides high-performance analog transmission of extended L-band signals over long-distance single-mode fiber. Supporting 49 DWDM wavelengths with 100 GHz spacing, the system allows numerous RF signals to share a single fiber for teleports, satellite ground stations and distant remote-plant connections.

Operating from 850 to 2450 MHz, the link combines adjustable transmitter and receiver gain, receiver slope compensation and continuous optical modulation index optimization. It supports a recommended optical loss of up to 25 dB, while the datasheet specifies a maximum optical budget of 32 dB at the nominal RF input level.

The DEV 7251 transmitter integrates LNB power and current monitoring. Both modules provide RF sensing, front-panel status LEDs, local push-button controls and dedicated SMA monitoring ports. Hot-swappable construction supports installation in compatible indoor and outdoor DEV Optribution chassis.

Product Type: DWDM analog L-band RF over fiber link
Transmitter: DEV 7251 DWDM Optribution Transmitter
Receiver: DEV 7333 Top Performance Optribution Receiver
Frequency Range: 850-2450 MHz
Minimum Optical-Link Attenuation: 8 dB
Recommended Optical Loss: Up to 25 dB
Maximum Optical Budget: 32 dB at -20 dBm nominal RF input
Maximum Link Gain: 41 ±3 dB
Transmitter Gain Adjustment: -32 to +31 dB in 1 dB steps
Receiver Gain Adjustment: 0-15 dB in 1 dB steps
Receiver Gain Accuracy: ±0.5 dB
Receiver Slope Adjustment: 0-4 dB in 1 dB steps
Full-Band Flatness: ±1.0 dB
36 MHz Flatness: ±0.25 dB
Return Loss: Greater than 16 dB; typ. 18 dB
Gain Stability: ±2 dB from 0°C to +45°C
Group Delay Distortion: Less than 2 ns within any 36 MHz
Nominal RF Input Level: -20 dBm aggregate
RF Input Dynamic Range: -100 to +15 dBm aggregate
Automatic OMI Optimization Range: -23 to +15 dBm aggregate
RF Input Damage Level: +15 dBm aggregate
Noise Figure: Less than 17 dB
Carrier-to-Noise Ratio: 66 dB
Output IP3: Greater than +30 dBm
Output P1dB: Greater than +4 dBm
Intermodulation Distortion: Greater than 43 dBc
Fiber Type: Single-mode 9/125 µm
Standard Optical Connector: SC/APC
Optional Optical Connectors: FC/APC or E2000/HRL
Module Dimensions: 20 mm W x 133 mm H x 100 mm D
Environmental Conditions: ETS 300019 Part 1-3 Class 3.1E

Key Features

• Extended L-band transmission from 850 to 2450 MHz

• 49 DWDM wavelength options

• 100 GHz DWDM channel spacing

• Multiple RF signals over a single dark fiber

• Recommended optical loss up to 25 dB

• Maximum specified optical budget of 32 dB

• Adjustable transmitter and receiver gain

• Receiver slope compensation

• Continuous automatic OMI optimization

• Wide -100 to +15 dBm RF input dynamic range

• High receiver output linearity

• Integrated LNB power and current monitoring

• RF sensing at both ends of the optical link

• Front-panel status LEDs and push-button controls

• Dedicated RF monitoring ports

• SC/APC, FC/APC and E2000/HRL interfaces

• Receiver compatible with supported optical LNBs

• Hot-swappable Optribution modules

• Compatible with indoor and outdoor Optribution chassis