Ascent’s AST2500 series is a compact fiber satellite and DTT optical transmitter suitable for satellite optical distribution network systems. The device receives the signal from 4 optical LNBs and distributes it over a single optical fiber, to the different users, using the CWDM transmission wavelength.
• Designed for Satellite Optical Systems
• Wide operating frequency range: 47 MHz to 860 MHz / 950 MHz to 2150 MHz
• Excellent Linearity and flatness
• Single-mode fiber high return loss
• Build-in GaAs amplifier active devices
• Ultralow noise technology
• Build-in CWDM, using DFB coaxial small package laser
• Outputs 13/18V, 0/22 kHz to LNB working
• A LNB mode switch offers the possibility to use either Quattro or QUAD LNB
• Red LED for power indication
• Small size and easy installation
Description | Note | |
Customer Interface | ||
RF Connector | F‑female | |
Optical Connector | SC/APC | |
Power Supply | F‑female | |
Optical Parameter | ||
Optical Return Loss | ≥45 dB | |
Output Optical Wavelength | 1510 nm | LV‑TX |
1530 nm | LH‑TX | |
1550 nm | HV+Terr.‑TX | |
1570 nm | HH‑TX | |
Output Optical Power | 3 mW | ≥5dBm |
Optical Fiber Type | Single‑mode fiber | |
Terr.+SAT‑IF Parameter | ||
Input Impedance | 75 Ω | |
Terr. Frequency Range | 47 MHz to 860 MHz | |
Terr. Flatness | ±0.75 dB | |
Terr. Input Level | 75 dBµV ± 5 dBµV | |
Terr. Return Loss | ≥14 dB | |
CNR | ≥52 dB | |
CSO | ≥62 dB | |
CTB | ≥65 dB | |
SAT‑IF Frequency Range | 950 MHz to 2150 MHz | |
SAT‑IF Return Loss | ≥10 dB | |
SAT‑IF Flatness | ±1.5 dB | |
SAT‑IF Input Level | 70 dBµV ± 5 dBµV | |
LNB Power supply | 13 V / 18 V | |
LNB power supply current | 500 mA (max.) | |
22 kHz Accuracy | 22 kHz ± 4 kHz | |
Other Parameter | ||
Power Supply | 20 VDC | |
Power Consumption | <10 W | |
Dimensions | 195 mm × 128 mm × 40 mm |
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