Passive Optical Networks GPON OLT SFP Module Class B+

Passive Optical Networks GPON OLT SFP Module Class B+

Product Features:

• Integrated Single fiber bi-directional optical subassembly
• 1310nm Burst-mode APD/TIA receiver and 1490nm
• Continuous DFB laser Transmitter (with WDM)
• -40 to 85 oC operating ambient temperature
• Fast settling time with immunity to long streams of CID
• Guard time squelched function
• Digitalized burst mode optical power monitoring
• LVPECL compatible data input and output interface
• LVTTL receiver reset control
• LVTTL receiver burst-power-detect indication
• Excellent EMI and EMC characteristics
• ESD protection functio

Applications:

Optical transceiver for Gigabit-capable Passive Optical Networks (GPON) Class B+ OLT side

Standards:

ITU-T G.984.2 Class B+
Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement July 5, 2000

Description:

1.The GEZHI GPON OLT SFP transceiver is the high performance module for single fiber by using 1490nm continuous-mode transmitter and 1310nm burst-mode receiver. It is optical line terminal(OLT) for ITU-T G984.2. The optical transceiver is compliant with the Small Form- Factor Pluggable (SFP) Multi-Source Agreement (MSA).

2.The transmitter section uses a 1490nm DFB LD with automatic power control (APC) function and temperature compensation circuitry to ensure stable extinction ratio over all operating temperature range. and is ClassⅠlaser compliant IEC825 and CDRH standards.The receiver has a hermetically packaged burst-mode APD-TIA (trans-impedance amplifier) pre-amplifier and a burst-mode limiting amplifier with LVPECL compatible differential outputs.

3.The receiver also includes the function of burst mode signal detect output and fast RSSI output which is enabled by a trigger. When the burst optical power is on, the receiver outputs high level; when the burst optical power is off, the receiver outputs low level. Fast RSSI function can satisfy more severe timing demand to monitor the power from any ONU.

Specification: