Cisco Compatible EPON ONU PX20+ SFP 1310nm TX/1490nm RX 1.25G 20km DDM SC SMF Transceiver Module

Features

• Single Fiber EPON ONU Transceiver
• 1310nm burst-mode 1.25 Gb/s transmitter with FP laser 1490nm continuous-mode 1.25Gb/s PIN-TIA receiver
• Compliant with IEEE802.3 ah™ - 2004
• Compliant with IEC60825 Class I
• Compliant with SFF-8472 v11.0
• Digital diagnostic monitoring interface (DDMI) with internal calibration
• Small Form-Factor Hot Pluggable (SFP) Metallic Package with SC/UPC receptacle optical interface
• Burst On/Off time is less than 16 bits
• +3.3V separated power supply
• LVTTL interface logic level for AC or DC coupled data input
• CML interface logic level for AC coupled data output
• LVTTL for burst signal input
• LVTTL for receiver loss of signal detect indication
• Compliant with RoHS-6
• Operating temperature range: 0℃~+70℃

Application

• Gigabit Ethernet P2MP application
• Gigabit-Ethernet Passive Optical Network (EPON) ONU side
• FTTx

Description

The transmitter is designed for single mode fiber and operates at wavelength of 1310nm. The transmitter module uses a FP laser diode and fully compliant with IEC60825 and CDRH class 1 eye safety. It contains APC functions, a temperature compensation circuit to ensure compliance with IEEE802.3 ah™ - 2004 requirement at operating temperature, data inputs and AC or DC coupling circuit.

The receiver section uses a hermetic packaged PIN-TIA (PIN with trans-impedance amplifier) and a limiting amplifier. The PIN 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 PIN-TIA is AC coupled to the limiting amplifier through a low pass filter.