DEV 7241 & DEV 7341 TWIN L-Band RF over Fiber Link

DEV 7241 & DEV 7341 TWIN L-Band RF over Fiber Link

The DEV 7241 and DEV 7341 Optribution Basic TWIN L-Band RF over Fiber Link provide two independent analog optical transmitters or receivers within each compact module. This dual-channel architecture delivers high-density extended L-band signal transport while reducing chassis space and overall system cost.

Operating from 850 to 2450 MHz, the link delivers fixed gain, high linearity and a recommended optical budget of up to 10 dB. It is designed for most intra-facility and interfacility applications in teleports, satellite ground stations, broadcast facilities and remote antenna systems.

Both modules incorporate RF sensing with front-panel and remote alarm reporting. The DEV 7241 transmitter also provides LNB power with selectable 13/18 VDC, 0/22 kHz tone and current monitoring. Hot-swappable construction allows the modules to operate in DEV indoor and outdoor Optribution chassis.

Product Type: Dual-channel analog L-band RF over fiber link
Transmitter: DEV 7241 Basic TWIN Optribution Transmitter
Receiver: DEV 7341 Basic TWIN Optribution Receiver
Channels per Module: Two
Frequency Range: 850-2450 MHz
Maximum Link Gain: 4 ±3 dB
Optional Receiver Gain Adjustment: 0-8 dB
Full-Band Flatness: ±1.5 dB
36 MHz Flatness: ±0.2 dB
Return Loss: Minimum 14 dB; typ. 16 dB
Gain Stability: ±2 dB from 0°C to +50°C
Group Delay Distortion: Less than 2 ns within any 36 MHz
Nominal RF Input Level: -10 dBm aggregate
RF Input Dynamic Range: -45 to -6 dBm aggregate
RF Input Damage Level: +12 dBm aggregate
Noise Figure: Less than 26 dB
Spurious-Free Dynamic Range: 103 dB/Hz⅔
Carrier-to-Noise Ratio: Greater than 56 dB
Output IP3: Greater than +7 dBm
Output P1dB: Greater than -1 dBm
Intermodulation Distortion: Greater than 40 dBc
Recommended Optical Budget: Up to 10 dB
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

DEV 7241 Transmitter Specifications

• Configuration: Two optical transmitters per module
• Laser Type: DFB
• Laser Classification: Class 1M
• Optical Output Power: 3 dBm
• Power Requirement: 12 VDC, 250 mA without LNB power
• Weight: Approximately 0.5 kg

DEV 7341 Receiver Specifications

• Configuration: Two optical receivers per module
• Optical Wavelength Range: 1100-1650 nm
• Optical Input Sensitivity: Greater than -15 dBm minimum input level
• Optical Input Damage Level: +10 dBm
• Optional Gain Adjustment: 0-8 dB with Option Plus
• Power Requirement: 12 VDC, 250 mA
• Weight: Approximately 0.3 kg

LNB Power and Current Monitoring

• LNB Power Capacity: Up to 350 mA
• Voltage Selection: 13 or 18 VDC
• Tone Selection: 0 or 22 kHz
• Current Monitoring: Integrated into the DEV 7241 transmitter
• Alarm Indication: Front-panel LED and remote communication

RF Sensing

• RF Sensing: Integrated into transmitter and receiver modules
• Threshold Range: Adjustable from -50 to 0 dBm
• Threshold Repeatability: Less than 0.1 dB
• Alarm Indication: Front-panel LED and remote communication

Available Options

• Option Plus: Adds 0-8 dB adjustable gain to the DEV 7341 receiver

• FC/APC Connector: Alternative optical interface

• E2000/HRL Connector: Alternative optical interface

• SC/APC Connector: Standard optical interface

• Chassis and Cabling Options: RF interfaces depend on the selected indoor or outdoor Optribution chassis configuration

Key Features

• Two transmitters or receivers in each module

• High-density dual-channel design

• Extended 850-2450 MHz L-band coverage

• Recommended optical budget up to 10 dB

• Fixed-gain, high-linearity signal transport

• Optional adjustable receiver gain

• Integrated RF sensing on both ends

• Front-panel RF-status LEDs

• Integrated LNB power and current monitoring

• Switchable 13/18 VDC and 0/22 kHz tone

• Single-mode optical transmission

• SC/APC, FC/APC and E2000/HRL connector options

• Receiver compatible with supported optical LNBs

• Hot-swappable module design

• Compatible with indoor and outdoor DEV Optribution chassis

• Space- and cost-saving architecture for high-density optical links