EPON OLT SFP PX20+ 1.25G 1310/1490nm Simplex SC Connector PON SFP
Transceiver
Description
1.25G EPON Transceiver Transceiver Module (SMF, 1490nmTx/1310nmRx,
20km, SC)
The transceiver with supports data rate of typical 1.25 Gbps for
GEPON OLT application up to 20km transmission distance, it’s
designed meeting with Telecom EPON equipment technical requirement.
The SFP transceivers are high performance, cost effective modules
supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km
transmission distance with SMF.The transceiver consists of three
sections: a FP laser transmitter, a PIN photodiode integrated with
a trans-impedance preamplifier (TIA) and MCU control unit. All
modules satisfy class I laser safety requirements.The transceivers
are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472.
Specification
1. Dual data-rate of 1.25Gbps/1.063Gbps operation
2. 1310nm FP laser and PIN photodetector for 10/20/40km
transmission
3. Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
4. Digital Diagnostic Monitoring:
5. Internal Calibration or External Calibration
6. Compatible with SONET OC-24-LR-1
7. Operating case temperature: Standard: 0 to +70°C, Industrial:
-40 to +85°C
8. Compatible with RoHS
9. +3.3V single power supply
Feature
1. Compatible IEEE 802.3ah 1000BASE-PX20 GEPON application
2. Applied to EPON OLT for a Single Fiber Bi-directional EPON
System
3. SFP, Single SC connector, Digital Diagnostic Interface Compliant
with SFF-8472
4. Burst Digital Receiving Signal Strength Indication (RSSI)
5. Single 3.3V power supply
6. Operation case temperature 0~70°C
7. RoHS-6 compliance
Recommended Operating Conditions
| Parameter | Symbol | Min. | Max. | Unit |
| Storage Temperature | TSTG | -40 | 85 | °C |
| Operating Case Temperature | TC | 0 | 70 | °C |
| Power Supply Voltage | VCC | 3.1 | 3.5 | V |
| Total Power Supply Current | ICC | - | 350 | mA |
Transmitter Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Units | Notes |
| Optical Transmitter Power | P0 | 2.5 | - | 7 | dBm |
1 |
| Optical Transmitter Power off | POFF | - | - | -39 | dBm |
| Output Center Wavelength | λ | 1480 | - | 1500 | nm |
| Output Spectrum Width | Δλ | - | - | 1.0 | nm |
| Side Mode Suppression Ratio | SMSR | 30 | - | - | dB |
| Extinction Ratio | ER | 9 | - | - | dB |
| Optical Rise Time | - | - | - | 260 | ps |
| Optical Fall Time | - | - | - | 260 | ps |
| Optical Eye Diagram | Compliant with IEEE Std 802.3ahTM-2004 |
| Tolerence to Tx Back Reflection | - | -15 | - | - | dB | |
| Data Rate | - | - | 1.25 | - | Gb/s | |
Single Ended Data Input Voltage Swing | VPP | 200 | - | 1200 | mV | |
| Differential Input Impedance | ZIN | 80 | 100 | 120 | ohm | |
| Tx_fault Output Voltage- High | VOH | 2.4 | - | - | V | |
| Tx_fault Output Voltage- Low | VOL | - | - | 0.4 | V | |
| Tx_Dis Input Voltage- High | VIH | 2.0 | - | - | V | |
| Tx_Dis Input Voltage- Low | VIL | - | - | 0.8 | V | |
Note 1: 1.25Gbps continuous-mode , PRBS27-1.
Receiver Characteristics
| Parameter | Symbol | Min. | Typ. | Max. | Units | Notes |
| Wavelength of Operation | - | 1260 | - | 1360 | nm | - |
| Data Rate | - | - | 1.25 | - | Gb/s | - |
| Sensitivity | Sen | - | - | -30 | dBm | 1 |
| Saturation Optical Power | Sat | -8 | - | - | dBm | 1 |
| LOS Assert Level | LOSA | -45 | - | - | dBm | 2 |
| LOS Deassert Level | LOSD | - | - | -31 | dBm | 2 |
| Reflectance of equipment | - | - | - | -20 | dB | |
Receiver Burst-mode Dynamic Range | - | 15 | - | - | dB | 3 |
| Data Output Voltage - High | VOH | VccR -1.05 | - | VccR -0.85 | V | - |
| Data Output Voltage - Low | VOL | VccR -1.84 | - | VccR -1.60 | V | - |
| RSSI accuracy | - | -3 | - | 3 | dB | 4 |
| LOS Output Voltage- High | VLOSH | 2 | - | - | V | |
| LOS Output Voltage- Low | VLOSL | - | - | 0.8 | V | |
| LOS Assert Time | TA | - | - | 500 | ns | |
| LOS Deassert Time | TD | - | - | 500 | ns | |
| RSSI Trigger-Low | - | 0 | - | 0.8 | V | |
| RSSI Trigger-High | - | 2.0 | - | Vcc | V | |
| RSSI Trigger Delay | TD | 975 | 1000 | 1025 | ns | 5 |
| RSSI Trigger Width | TW | 10 | - | - | us | |
| Optical Signal During Time | TONU EN_DUR | 1000 | - | - | ns | 6 |
Note 1: Measured with 1310nm, 1.25Gbps PRBS27-1 Single burst packet optical input, ER=10dB, BER=1x10-10.
Note 2: Measured at continuous mode.
Note 3: Input optical power level difference of adjacent burst
packets.
Note 4: Receiver optical power ranged from -8dBm to -30dBm,
measured with 1310nm, 1.25Gbps PRBS27-1 burst-mode optical input, ER=10dB, 50%duty cycle.
Note 5: Refer to first bit of the preamble
Note 6: 400ns CDR time and 600ns Data During Time.
Ordering Information
| Part No. | Wavelength | Connector | Temp. | (dBm) | Distance |
| PX20+ | 1310/1490nm | SC | 0℃-70℃ | 3-5db | 20km |
| PX20++ | 1310/1490nm | SC | 0℃-70℃ | 5-7db | 20km |
| PX20+++ | 1310/1490nm | SC | 0℃-70℃ | 7-7.5db | 20Km |
Applications
1.FTTH
2.CATV
3.Other networks
Product Pictures
Factory Image
Shipping
FAQ
Q1. Can I have a sample order for this product?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-6 days, mass production time needs 1-2 weeks for
order quantity more than
Q3. Do you have any MOQ limit for sample order?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5
days to arrive. Airline and sea shipping are also optional.
