Ascent Communication Technology

ASR2500 Fiber Satellite CWDM Optical Receiver

Ascent’s ASR2500 series is a compact fiber satellite and DTT optical receiver suitable for satellite optical network systems. The device receives the CWDM optical transmission signal from AST2500 transmitter, de-multiplexes them and distributes it to the end customer.

• 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 high linear PD

• Outputs connected to satellite multiswitch

• Built-in optical AGC function

• Red LED for power indication

• Small size and easy installation

Item	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‑RX
	1530 nm	LH‑RX
	1550 nm	HV+Terr.‑RX
	1570 nm	HH‑RX
Responsivity	≥0.9 A/W
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. Output Level	≥80 dBµV	AGC
Terr. Return Loss	≥14 dB
CNR	≥50 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 Output Level	75 dBµV ± 5 dBµV	AGC
AGC Stability	±1 dB
Other Parameter
Power Supply	20 V_DC
Power Consumption	<10 W
Dimensions	195 mm × 128 mm × 40 mm