ETL Systems StingRay 173/174 GENUS 1U CWDM RF over Fiber System, 500–3150 MHz

ETL Systems StingRay 173/174 GENUS 1U CWDM RF over Fiber System, 500–3150 MHz

The ETL Systems StingRay CWDM system transports multiple RF signals over a single optical fiber for satellite communications and RF signal distribution. The system combines SRY-G1S-TxxS6-173 wavelength-specific transmitters, SRY-G1S-RS6-174 receivers, and SRY-G1S-OCM-08-YY-201 optical multiplexer/demultiplexer modules.

At the transmit end, an eight-channel CWDM multiplexer combines separate optical wavelengths onto one fiber. At the receive end, a demultiplexer separates the wavelengths for the receiver modules. The system supports links up to 50 km, subject to the 12 dB optical budget and total installed link losses. Configurations with up to 16 wavelengths are available subject to factory confirmation.

Each transmitter or receiver occupies one GENUS 1U chassis slot. Both offer manual, automatic, and fixed gain modes, with 60 dB manual adjustment in 0.5 dB steps. Transmitters include DFB lasers with optical isolation and support 13/18 V LNB power. Compatible chassis provide local touchscreen and remote monitoring and control through SNMPv3 and HTTPS.

Transmitter Model: SRY-G1S-TxxS6-173; wavelength-specific configuration
Receiver Model: SRY-G1S-RS6-174
Mux/Demux Model: SRY-G1S-OCM-08-YY-201; connector suffix specified when ordering
Frequency Range: 500–3150 MHz
CWDM Capacity: Eight wavelengths per fiber; up to 16 subject to factory confirmation
Link Distance / Optical Budget: Up to 50 km / 12 dB
Chassis Compatibility: GENUS 1U; one slot per TX/RX module; five slots per mux/demux module
Gain Control: Manual, automatic, and fixed gain; 60 dB manual range in 0.5 dB steps
Gain Flatness: ±2.0 dB across 500–3150 MHz; ±1.5 dB across 850–2150 MHz; ±0.25 dB over any 36 MHz, in fixed gain mode
OIP3: +20 dBm typ. across 500–3150 MHz; +23 dBm typ. across 850–2150 MHz
Noise Figure: 9 dB typ.; 12 dB worst case
Optical Wavelengths: TX: selected CWDM wavelength from 1471–1611 nm; RX: 1100–1650 nm
Connector Options: SMA 50Ω, BNC 50Ω, BNC 75Ω, or F-type 75Ω RF; FC/APC or SC/APC optical
LNB Power: Transmitter only; 13/18 V ±5%, 500 mA max.
Power Consumption: TX: 15 W typ., including 18 V/500 mA LNB power; RX: 4 W typ.; mux/demux: 0 W

CWDM Multiplexer/Demultiplexer

Channel Wavelengths: 1471, 1491, 1511, 1531, 1551, 1571, 1591, and 1611 nm
Insertion Loss: 2.0 dB
Channel Isolation: Greater than 30 dB
Return Loss: Greater than 45 dB
Maximum Optical Power: 300 mW

Key Features

• Transports eight RF channels over one single-mode fiber using CWDM.

• Extended RF coverage for L-band and S-band applications.

• Passive optical multiplexer/demultiplexer requires no electrical power.

• Optional chassis-based 10 MHz reference distribution.

• Hot-swappable TX/RX modules with MTBF greater than 200,000 hours.

• TX/RX module dimensions: 19 × 38 × 250 mm; weight: 0.2 kg each.

Transmitters, receivers, mux/demux modules, compatible GENUS chassis, and optional reference distribution are ordered separately unless included in the quoted configuration. Specify channel count, transmitter wavelengths, RF connectors, and optical connectors when requesting a quotation. Maximum distance depends on fiber attenuation, mux/demux losses, connector losses, and the available optical budget.