Product Details
GEPON / EPON PX20++ OLT Optical SFP Module Tx1310nm Rx1490nm 20km ,
SC
single fiber singlemode for EPON OLT device.
PON Overview
- Ethernet Passive Optical Networks (GEPON or EPON) is the leading
technology being used in FTTx (FTTH) deployments. PON is different
than other optical network topologies in that it is a Point to
Multi-Point (P2MP) topology. From the Central Office’s (CO) Optical
Line Terminal (OLT, with SFP GEPON transceiver/module) a single
strand of fiber goes out to a passive optical splitter where its
signal is multiplied to 32(64) different lines. The Transmit and
Receive signals operate on different wavelengths allowing
bi-directional operation over a single fiber. Anything transmitted
from the OLT is transmitted to all 32 lines. It is up to the
customer’s system (Optical Network Unit - ONU) to determine what
packets are for that customer. All other packets are discarded. The
PON current standards have defined downstream data rates up to
1.25Gbps.
- IEEE 802.3ah. EPON or GEPON (Ethernet PON) is an IEEE/EFM standard
for using Ethernet for packet data.
Product Application
• Passive Opitacal Access Network
• Fiber to the Home
• Fiber to the Building
• Fiber to the Curb
Product Features
- Compatible IEEE 802.3ah 1000BASE-PX20++ GEPON application
- Applied to EPON OLT for a Single Fiber Bi-directional EPON System
- SFP, Single SC connector, Digital Diagnostic Interface Compliant
with SFF-8472
- Burst Digital Receiving Signal Strength Indication (RSSI)
- Single 3.3V power supply
- Operation case temperature -10~70°C for commercial
- RoHS-6 compliance
Optical Characteristics
Parameter | Unit | Min. | Typ. | Max. |
TX Central Wavelength | nm | 1480 | | 1500 |
Spectral Width (-20dB) | nm | | | 1 |
SMSR | dB | 30 | | |
Mean Launched Power | dBm | 5 | | 8 |
Mean Launched Power (TX Off) | dBm | | | -39 |
Extinction Ratio(Note 1) | dB | 9 | | |
TX Total Jitter | UI | | | 0.43 |
Rise/Fall Time (20%-80%) | ps | | | 260 |
RIN15OMA | dB/Hz | | | -115 |
Optical Return Loss Tolerance | dB | | | -12 |
Transmitter and dispersion Penalty(20km G.652) | dB | | | 2.3 |
TX Optical Eye Mask | Compliant With IEEE Std 802.3ah™-2004 |
Receive Wavelength | nm | 1260 | | 1360 |
Sensitivity (Note 2) | dBm | | | -33 |
Overload | dBm | -6 | | |
Dynamic Rang | dB | 25 | | |
Receiver Threshold Settling Time | ns | | | 250 |
RX Dynamic Range(Note 3) | dBm | -30 | | -6 |
LOS-Deassert | dBm | | | -34 |
LOS-Assert | dBm | -45 | | |
SD Hysteresis | dB | 0.5 | | 6 |
Receiver Reflectance | dB | | | -12 |
Note:
- Measured with PRBS 27-1 test pattern @1.25Gbps, Low Pass Filter is on.
- Measured with a PRBS 27-1 test pattern @1.25Gbps and ER=10dB, BER <10-12
3, RX Dynamic Range Definition
Electrical Characteristics
Parameter | Unit | Min. | Typical | Max. |
Power Supply Current | mA | | | 300 |
Data Input Differential Swing | mV | 200 | | 1600 |
Data Differential Impedance | Ω | 90 | 100 | 110 |
TTL Input -Low | V | 0 | | 0.8 |
TTL Input -High | V | 2.0 | | Vcc |
TTL Output -Low | V | 0 | | 0.4 |
TTL Output -High | V | 2.4 | | Vcc |
Data Output Differential Swing | mV | 400 | | 1600 |
Los Assert Time | ns | | | 500 |
Los Deassert Time | ns | | | 500 |
Ordering Information
Ordering P/Ns | Description |
NTW - GES20++AS | EPON OLT PX20++ Diplexer, 30km, Tx 1490nm 1.25G, Rx 1310nm 1.25G,
SFP form-factor, SC/UPC receptacle connector, Commercial
temperature. |
Company Profile
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.