EPON OLT OPTICAL SFP MODULE
The GEPON OLT transceiver is the high performance module for single fiber,1490nm continuous-mode transmitter and 1310nm burst-mode receiver.
INFORMATION
Description
The BD-4311S-E2CDA is the high performance GEPON SFP module for single fiber by using 1490nm continuous-mode transmitter and 1310nm burst-mode receiver. It is optical line terminal(OLT) for IEEE Std 802.3ah?-2004 1000BASE-PX20. The optical transceiver is compliant with the Small Form- Factor Pluggable (SFP) Multi-Source Agreement (MSA).
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 APD-TIA (trans-impedance amplifier) pre-amplifier and a limiting amplifier with LVPECL compatible differential outputs.
Features
Single Fiber Transceiver with single mode SC receptacle
1490nm continuous-mode 1.25G/s transmitter with DFB laser
1310nm burst-mode 1.25G/s receiver with APD-TIA
Single 3.3V power supply
LVPECL compatible data input /output
Support more than 24dB dynamic range
Continued mode received signal strength indication (RSSI) output
Complies with IEEE Std 802.3ah?-2004 1000BASE-PX20
Digital diagnostic interface compliant with SFF-8472 Rev 9.4 ,
Complies with RoHS directive (2002/95/EC)
Operating case temperature:
Standard : 0 to +70C
Applications
Gigabit Ethernet Passive Optical Network (GEPON) OLT
Optical and Electrical Characteristics
|
Parameter
|
Symbol
|
Min
|
Typical
|
Max
|
Unit
|
Notes
|
|
|
Transmitter
|
|||||||
|
Data Rate
|
1.25
|
Gb/S
|
|||||
|
Centre Wavelength
|
λc
|
1480
|
1500
|
nm
|
|||
|
Spectral Width
|
∆λ
|
0.4
|
1
|
nm
|
|||
|
Average Output Power(BOL)
|
Pout
|
3
|
7
|
dBm
|
1
|
||
|
Extinction Ratio
|
ER
|
9
|
dB
|
||||
|
Average Launch Power-OFF Transmitter
|
Poff
|
-40
|
dBm
|
||||
|
Optical Eye Diagram
|
Compliant with IEEE802.3ah-2004 PX20
|
||||||
|
Input Differential Impedance
|
ZIN
|
90
|
100
|
110
|
Ω
|
||
|
TX Disable
|
Disable
|
2.0
|
Vcc
|
V
|
|||
|
Enable
|
0
|
0.8
|
V
|
||||
|
TX Fault
|
Fault
|
2.0
|
Vcc
|
V
|
|||
|
Normal
|
0
|
0.8
|
V
|
||||
|
Receiver
|
|||||||
|
Data Rate
|
1.25
|
Gb/S
|
|||||
|
Centre Wavelength
|
λc
|
1260
|
1360
|
nm
|
|||
|
Receiver Sensitivity
|
Sen
|
-28
|
dBm
|
3
|
|||
|
Receiver Overload
|
Sat
|
-6
|
dBm
|
3
|
|||
|
Receiver Burst Dynamic Range
|
22
|
dB
|
|||||
|
Receiver Reflectance
|
-20
|
dB
|
|||||
|
LOS De-assert Level
|
LOS_D
|
-29
|
dBm
|
||||
|
LOS Assert Level
|
LOS_A
|
-45
|
dBm
|
||||
|
Reciever Power DDM (RSSI) Error
|
RXDDM
|
+/-3
|
dBm
|
||||
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