High Performance OLT SFP Module , GPON SFP Transceiver RoHS6 Compliance

SFP Module Transceiver GPON class B+ / OLT SFP Module Transceiver

The transceiver is a high performance module for single fiber communications using a 1310nm burst-mode transmitter and a 1490nm continuous-mode receiver. It is used in the optical network terminal (ONT) for GPON ONT Class B+ applications.

The Transmitter is designed for single mode fiber and operates at a nominal wavelength of 1310nm. The transmitter module uses a DFB laser diode with full IEC825 and CDRH class 1 eye safety. It contains APC functions, a temperature compensation circuit to ensure compliance with G.984.2 requirement at operating temperature, LVPECL data inputs and DC coupling circuit.

The receiver section uses a hermetic packaged APD TIA (APD with trans-impedance amplifier) and a limiting amplifier. The APD converts optical power into electrical current and the current is transformed to voltage by the trans-impedance amplifier. The differential DATA and /DATA CML data signals are produced by the limiting amplifier. The APD TIA is AC coupled to the limiting amplifier through a low pass filter. As the optical input power decreases, the Signal Detect will switch from high to low (de-assert point). As the optical input power is increases, Signal Detect will switch back from low to high (assert point). The assert level is at least 0.5 dB higher than the de-assert level (Signal Detect Hysteresis).

Product Features

Support ITU-T G.984.2 GPON OLT B+ application
Single fiber bi-directional data links with symmetric 2.488Gbps Tx and 1.244Gbps Rx
1490nm continuous-mode transmitter with DFB LD
1310nm burst-mode receiver with APD-TIA
2-wire interface for integrated digital diagnostic Monitoring
Receiver RESET, Signal Detect, RSSI function indication (RESET, RX_SD, RSSI)
SFP package with SC/UPC receptacle optical interface
Single +3.3V power supply
Operation case temperature -40~85°C for industrial and 0~70°C for commercial
RoHS6 compliance

Applications:
Data services
Voice services
Video services
Monitoring service
FTTH

Operating Condition

Characteristics
All performance is specified at whole working temperature and conditions

Natywish was founded in 2006,  more than 10 years development and production experiences , our company has been concentrating on the fileds of Pon syestems and has been devoted to the R&D of relevant products solution .

Our main produce GPON/EPON OLT, ONU, advantage products also including media converter, POE switch, industrial switch. Production is base on the largest PON foundry factory in Shenzhen, which has 60000 square meters.

Natywish has become a leader and expert in security and fiber optical communication industry in China.