EPON OLT Optical Transceivers – www.philisun.com https://www.philisun.com Optical transceivers support <strong>10G to 800G</strong> high-speed transmission Tue, 30 Jun 2026 04:47:15 +0000 en-US hourly 1 https://www.philisun.com/wp-content/uploads/2025/10/philisun斐立飒-logo彩色方形-1-100x100.png EPON OLT Optical Transceivers – www.philisun.com https://www.philisun.com 32 32 PX20+++ 7dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver https://www.philisun.com/products/epon-olt-px20-7dbm-1g-1490-1310nm-20km-sc-sx/ Mon, 11 May 2026 09:56:31 +0000 https://www.philisun.com/?post_type=product&p=9197 SFP-EPON-PX20+++1.25-1413-20-SCS

PX20+++ 7dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-EPON-PX20+++1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate1.25GbpsClassPX20+++
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power7~9dBmReceiver Sensitivity-32dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-8dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN EPON OLT PX20+++ 7dBm Transceiver is a high-performance 1.25G SFP module designed for Optical Line Terminal (OLT) applications, supporting 1490nm downstream transmission and 1310nm upstream reception over single-mode fiber (SMF) with a 20km reach. Featuring an SC connector interface and compliant with the premium PX20+++ class delivering a 7dBm optical budget, it incorporates 100 Ohm differential impedance for both transmitter inputs and receiver outputs. The module employs internal AC coupling on data lines, provides differential termination, and minimizes differential-to-common mode conversion to ensure superior signal integrity, robust termination quality, and reduced electromagnetic interference (EMI).

 

TRANSCEIVER SERIES PRODUCTS
epon olt px20 7dbm 1G 1490 1310nm 20km SC SX transceiver series products

 

PRODUCTION & TESTING EQUIPMENT
epon olt px20 7dbm 1G 1490 1310nm 20km SC SX transceiver production and testing equipment

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Power Supply Voltage VCC 0 3.6 V
Storage Temperature Tc -40 85 ℃
Operating Case Temperature Tc 0 70 ℃
TI -40 85
Relative Humidity RH 5 95 %
RX Input Average Power Pmax – -7 dBm
These  values  represent  the  damage  threshold  of the  module.  Stress  in  excess  of  any  of the  individual Absolute  maximum  ratings  can  cause  immediate  catastrophic  damage  to  the  module  even  if  all  other parameters are within recommended operating conditions.

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current Icc – – 350 mA
Operating Case
Temperature		 TC 0 25 70 ℃
TI -40 25 85
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

 

Optical Characteristics
Parameters Unit Values
Operating Reach m 2 – 20K
Transmitter
Center Wavelength nm 1490
Side Mode Suppression Ratio (min) dB 30
Launched power
– maximum (Average) dBm 9
– minimum (Average) dBm 7
Average Launch Power of OFF Transmitter (max) dBm -30
Extinction Ratio (min) dB 9
Optical Return Loss Tolerance (min) dB 12
Receiver
Center Wavelength (range) nm 1310
Receive Overload (max) in Average Power(note 1) dBm -8
Receive Sensitivity (min) in A Power(note 1) dBm -30
Receiver Reflectance (max) dB -12
Los Assert(min) dBm -33
Los Dessert(max) dBm -30
Los Hysteresis(min) dB 0.5
Receiver power (damage, Max) dBm -7
Notes:
1. Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
2. Power budget is defined as the different between the Rx sensitivity andthe Tx output power of the interface.

 

Electrical Characteristics
Parameter Symbol Min. Typical Max Unit Notes
Data Rate – – 1.25 – Gbps –
Power Consumption – – 800 1000 mW –
Transmitter
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Common Mode Voltage Tolerance – 15 – – mV –
Tx Input Diff Voltage VI 180 – 1200 mV –
Tx Fault VoL -0.3 – 0.4 V At 0.7mA
Data Dependent Input Jitter DDJ – – 0.1 UI –
Data Input Total Jitter TJ – – 0.28 UI –
Receiver
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Rx Output Diff Voltage  Vo 400 ‐ 2400 mV LOS Assert Time LOS De‐assert Time
LOS Assert Time TAssert ‐ ‐ 500 ns
LOS De‐assert Time TDeassert ‐ ‐ 500 ns
Receiver Threshold Settling Time TSETTLING ‐ ‐ 250 ns

 

OLT SFP MODULE PIN DEFINITION
PIN DEFINITION EPON OLT PX20+-3dBm-1.25G-1490-1310nm-20km SC SX

 

PIN Logic Symbol Name / Description Note
1 – VeeT Module Transmitter Ground 1
2 LVTTL-O TX_Fault Module Transmitter Fault –
3 LVTTL-I TX_Dis Transmitter  Disable; Turns off Transmitter Laser Output –
4 LVTTL-I/O SDA 2-Wire Serial Interface Data Line 2
5 LVTTL-I SCL 2-Wire Serial Interface Clock 2
6 – MOD_DEF0 Module Definition, Grounded in the Module –
7 LVTTL-I RS0 Receiver Rate Select –
8 LVTTL-O RX_LOS Receiver Loss of Signal Indication Active LOW –
9 LVTTL-I RS1 Transmitter Rate Select (not used) –
10 – VeeR Module Receiver Ground 1
11 – VeeR Module Receiver Ground 1
12 LVPECL-O RD- Receiver Inverted Data Output –
13 LVPECL-O RD+ Receiver Data Output –
14 – VeeR Module Receiver Ground 1
15 – VccR
Module Receiver 3.3 V Supply
 –
16 – VccT Module Receiver 3.3 V Supply –
17 – VeeT Module Transmitter Ground 1
18 CML-I TD+ Transmitter Non-Inverted Data Input –
19 CML-I TD- Transmitter Inverted Data Input –
20 – VeeT Module Transmitter Ground 1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

 

PRODUCT CERTIFICATION
certification and compliance module

 

QUALITY ADVANTAGE
PHILISUN quality advantage graphic

 

COMPATIBLE BRANDS
Compatible optical transceiver brands graphic
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

PX20+++ 7dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]> PX20++ 5dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver https://www.philisun.com/products/epon-olt-px20-5dbm-1g-1490-1310nm-20km-sc-sx/ Mon, 11 May 2026 09:24:29 +0000 https://www.philisun.com/?post_type=product&p=9186 SFP-EPON-PX20++1.25-1413-20-SCS

PX20++ 5dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-EPON-PX20++1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate1.25GbpsClassPX20++
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power4.5~9.0dBmReceiver Sensitivity-30dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-8dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN EPON OLT PX20++ 5dBm Transceiver is a 1.25G SFP module designed for Optical Line Terminal (OLT) equipment, operating at 1490nm downstream and 1310nm upstream wavelengths over single-mode fiber (SMF) for distances up to 20km. Featuring an SC connector interface and compliant with the enhanced PX20++ class offering a 5dBm optical budget, it provides differential 100 Ohm termination for both transmitter input and receiver output data lines. Internal AC coupling ensures robust signal termination, while the module’s design minimizes differential-to-common mode conversion for superior signal integrity and low electromagnetic interference (EMI).

 

TRANSCEIVER SERIES PRODUCTS
epon olt px20 5dbm 1G 1490 1310nm 20km SC SX transceiver series products

 

PRODUCTION & TESTING EQUIPMENT
epon olt px20 5dbm 1G 1490 1310nm 20km SC SX transceiver production and testing equipment

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Power Supply Voltage VCC 0 3.6 V
Storage Temperature Tc -40 85 ℃
Operating Case Temperature Tc 0 70 ℃
TI -40 85
Relative Humidity RH 5 95 %
RX Input Average Power Pmax – -7 dBm
These  values  represent  the  damage  threshold  of the  module.  Stress  in  excess  of  any  of the  individual Absolute  maximum  ratings  can  cause  immediate  catastrophic  damage  to  the  module  even  if  all  other parameters are within recommended operating conditions.

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current Icc – – 300 mA
Operating Case
Temperature		 TC 0 25 70 ℃
TI -40 25 85
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

 

Optical Characteristics
Parameters Unit Values
Operating Reach m 2 – 20K
Transmitter
Center Wavelength nm 1490
Side Mode Suppression Ratio (min) dB 30
Launched power
– maximum (Average) dBm 9
– minimum (Average) dBm 4.5
Average Launch Power of OFF Transmitter (max) dBm -30
Extinction Ratio (min) dB 9
Optical Return Loss Tolerance (min) dB 12
Receiver
Center Wavelength (range) nm 1310
Receive Overload (max) in Average Power(note 1) dBm -8
Receive Sensitivity (min) in A Power(note 1) dBm -30
Receiver Reflectance (max) dB -12
Los Assert(min) dBm -33
Los Dessert(max) dBm -30
Los Hysteresis(min) dB 0.5
Receiver power (damage, Max) dBm -7
Notes:
1. Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
2. Power budget is defined as the different between the Rx sensitivity andthe Tx output power of the interface.

 

Electrical Characteristics
Parameter Symbol Min. Typical Max Unit Notes
Data Rate – – 1.25 – Gbps –
Power Consumption – – 800 1000 mW –
Transmitter
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Common Mode Voltage Tolerance – 15 – – mV –
Tx Input Diff Voltage VI 180 – 1200 mV –
Tx Fault VoL -0.3 – 0.4 V At 0.7mA
Data Dependent Input Jitter DDJ – – 0.1 UI –
Data Input Total Jitter TJ – – 0.28 UI –
Receiver
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Rx Output Diff Voltage  Vo 300 ‐ 1000 mV LOS Assert Time LOS De‐assert Time
LOS Assert Time TAssert ‐ ‐ 500 ns
LOS De‐assert Time TDeassert ‐ ‐ 500 ns
Receiver Threshold Settling Time TSETTLING ‐ ‐ 250 ns

 

OLT SFP MODULE PIN DEFINITION
PIN DEFINITION EPON OLT PX20+-3dBm-1.25G-1490-1310nm-20km SC SX

 

PIN Logic Symbol Name / Description Note
1 – VeeT Module Transmitter Ground 1
2 LVTTL-O TX_Fault Module Transmitter Fault –
3 LVTTL-I TX_Dis Transmitter  Disable; Turns off Transmitter Laser Output –
4 LVTTL-I/O SDA 2-Wire Serial Interface Data Line 2
5 LVTTL-I SCL 2-Wire Serial Interface Clock 2
6 – MOD_DEF0 Module Definition, Grounded in the Module –
7 – NC Not Connect –
8 LVTTL-O RX_LOS Receiver Loss of Signal Indication Active LOW –
9 – VeeR Module Receiver Ground –
10 – VeeR Module Receiver Ground 1
11 – VeeR Module Receiver Ground 1
12 LVPECL-O RD- Receiver Inverted Data Output –
13 LVPECL-O RD+ Receiver Data Output –
14 – VeeR Module Receiver Ground 1
15 – VccR
Module Receiver 3.3 V Supply
 –
16 – VccT Module Receiver 3.3 V Supply –
17 – VeeT Module Transmitter Ground 1
18 CML-I TD+ Transmitter Non-Inverted Data Input –
19 CML-I TD- Transmitter Inverted Data Input –
20 – VeeT Module Transmitter Ground 1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

 

PRODUCT CERTIFICATION
certification and compliance module

 

QUALITY ADVANTAGE
PHILISUN quality advantage graphic

 

COMPATIBLE BRANDS
Compatible optical transceiver brands graphic
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

PX20++ 5dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]> PX20+++ 9dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver https://www.philisun.com/products/epon-olt-px20-9dbm-1g-1490-1310nm-20km-sc-sx/ Mon, 11 May 2026 09:05:18 +0000 https://www.philisun.com/?post_type=product&p=9180 SFP-EPON-PX20+++9dBm-1.25-1413-20-SCS

PX20+++ 9dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-EPON-PX20+++9dBm-1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate1.25GbpsClassPX20+++
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power8~11dBmReceiver Sensitivity-32dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-8dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN EPON OLT PX20+++ 9dBm Transceiver represents the industry-leading 1.25G SFP solution for Optical Line Terminals, enabling 1490nm downstream transmission and 1310nm upstream reception over single-mode fiber (SMF) with 20km reach. Featuring an SC connector and delivering the highest available 9dBm optical budget in the PX20+++ class, this transceiver incorporates 100 Ohm differential impedance on both transmitter inputs and receiver outputs. Its architecture employs internal AC coupling on data lines, provides precision differential termination, and minimizes differential-to-common mode conversion to ensure uncompromising signal integrity, premium termination quality, and ultra-low electromagnetic interference (EMI) performance.

 

TRANSCEIVER SERIES PRODUCTS
epon olt px20 9dbm 1G 1490 1310nm 20km SC SX transceiver series products

 

PRODUCTION & TESTING EQUIPMENT
epon olt px20 9dbm 1G 1490 1310nm 20km SC SX transceiver production and testing equipment

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Power Supply Voltage VCC 0 3.6 V
Storage Temperature Tc -40 85 ℃
Operating Case Temperature Tc 0 70 ℃
TI -40 85
Relative Humidity RH 5 95 %
RX Input Average Power Pmax – -7 dBm
These  values  represent  the  damage  threshold  of the  module.  Stress  in  excess  of  any  of the  individual Absolute  maximum  ratings  can  cause  immediate  catastrophic  damage  to  the  module  even  if  all  other parameters are within recommended operating conditions.

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current Icc – – 350 mA
Operating Case
Temperature		 TC 0 25 70 ℃
TI -40 25 85
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

 

Optical Characteristics
Parameters Unit Values
Operating Reach m 2 – 20K
Transmitter
Center Wavelength nm 1490
Side Mode Suppression Ratio (min) dB 30
Launched power
– maximum (Average) dBm 11
– typical (Average) dBm 9
– minimum (Average) dBm 8
Average Launch Power of OFF Transmitter (max) dBm -30
Extinction Ratio (min) dB 9
Optical Return Loss Tolerance (min) dB 12
Receiver
Center Wavelength (range) nm 1310
Receive Overload (max) in Average Power(note 1) dBm -8
Receive Sensitivity (min) in A Power(note 1) dBm -32
Receiver Reflectance (max) dB -12
Los Assert(min) dBm -33
Los Dessert(max) dBm -30
Los Hysteresis(min) dB 0.5
Receiver power (damage, Max) dBm -7
Notes:
1. Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
2. Power budget is defined as the different between the Rx sensitivity andthe Tx output power of the interface.

 

Electrical Characteristics
Parameter Symbol Min. Typical Max Unit Notes
Data Rate – – 1.25 – Gbps –
Power Consumption – – 800 1000 mW –
Transmitter
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Common Mode Voltage Tolerance – 15 – – mV –
Tx Input Diff Voltage VI 180 – 1200 mV –
Tx Fault VoL -0.3 – 0.4 V At 0.7mA
Data Dependent Input Jitter DDJ – – 0.1 UI –
Data Input Total Jitter TJ – – 0.28 UI –
Receiver
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Rx Output Diff Voltage  Vo 400 ‐ 2400 mV LOS Assert Time LOS De‐assert Time
LOS Assert Time TAssert ‐ ‐ 500 ns
LOS De‐assert Time TDeassert ‐ ‐ 500 ns
Receiver Threshold Settling Time TSETTLING ‐ ‐ 250 ns

 

OLT SFP MODULE PIN DEFINITION
PIN DEFINITION EPON OLT PX20+-3dBm-1.25G-1490-1310nm-20km SC SX

 

PIN Logic Symbol Name / Description Note
1 – VeeT Module Transmitter Ground 1
2 LVTTL-O TX_Fault Module Transmitter Fault –
3 LVTTL-I TX_Dis Transmitter  Disable; Turns off Transmitter Laser Output –
4 LVTTL-I/O SDA 2-Wire Serial Interface Data Line 2
5 LVTTL-I SCL 2-Wire Serial Interface Clock 2
6 – MOD_DEF0 Module Definition, Grounded in the Module –
7 – NC Not Connect –
8 LVTTL-O RX_LOS Receiver Loss of Signal Indication Active LOW –
9 – VeeR Module Receiver Ground –
10 – VeeR Module Receiver Ground 1
11 – VeeR Module Receiver Ground 1
12 LVPECL-O RD- Receiver Inverted Data Output –
13 LVPECL-O RD+ Receiver Data Output –
14 – VeeR Module Receiver Ground 1
15 – VccR
Module Receiver 3.3 V Supply
 –
16 – VccT Module Receiver 3.3 V Supply –
17 – VeeT Module Transmitter Ground 1
18 CML-I TD+ Transmitter Non-Inverted Data Input –
19 CML-I TD- Transmitter Inverted Data Input –
20 – VeeT Module Transmitter Ground 1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

 

PRODUCT CERTIFICATION
certification and compliance module

 

QUALITY ADVANTAGE
PHILISUN quality advantage graphic

 

COMPATIBLE BRANDS
Compatible optical transceiver brands graphic
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

PX20+++ 9dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]> PX20+++ 8dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver https://www.philisun.com/products/epon-olt-px20-8dbm-1g-1490-1310nm-20km-sc-sx/ Mon, 11 May 2026 08:24:39 +0000 https://www.philisun.com/?post_type=product&p=9172 SFP-EPON-PX20+++8dBm-1.25-1413-20-SCS

PX20+++ 8dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]>
SPECIFICATIONS
Product ModelSFP-EPON-PX20+++8dBm-1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate1.25GbpsClassPX20+++
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power7~11dBmReceiver Sensitivity-32dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-8dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN EPON OLT PX20+++ 8dBm Transceiver is a premium-grade 1.25G SFP module engineered for Optical Line Terminal (OLT) deployments, delivering 1490nm downstream transmission and 1310nm upstream reception over single-mode fiber (SMF) with a 20km reach. Featuring an SC connector interface and compliant with the highest-performance PX20+++ class offering an 8dBm optical budget, it incorporates 100 Ohm differential impedance for both transmitter inputs and receiver outputs. The module utilizes internal AC coupling on data lines, provides optimized differential termination, and significantly reduces differential-to-common mode conversion to ensure exceptional signal integrity, reliable termination quality, and minimized electromagnetic interference (EMI).

 

TRANSCEIVER SERIES PRODUCTS
epon olt px20 8dbm 1G 1490 1310nm 20km SC SX transceiver series products

 

PRODUCTION & TESTING EQUIPMENT
epon olt px20 8dbm 1G 1490 1310nm 20km SC SX transceiver production and testing equipment

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Power Supply Voltage VCC 0 3.6 V
Storage Temperature Tc -40 85 ℃
Operating Case Temperature Tc 0 70 ℃
TI -40 85
Relative Humidity RH 5 95 %
RX Input Average Power Pmax – -7 dBm
These  values  represent  the  damage  threshold  of the  module.  Stress  in  excess  of  any  of the  individual Absolute  maximum  ratings  can  cause  immediate  catastrophic  damage  to  the  module  even  if  all  other parameters are within recommended operating conditions.

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current Icc – – 350 mA
Operating Case
Temperature		 TC 0 25 70 ℃
TI -40 25 85
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

 

Optical Characteristics
Parameters Unit Values
Operating Reach m 2 – 20K
Transmitter
Center Wavelength nm 1490
Side Mode Suppression Ratio (min) dB 30
Launched power
– maximum (Average) dBm 11
– typical (Average) dBm 8
– minimum (Average) dBm 7
Average Launch Power of OFF Transmitter (max) dBm -30
Extinction Ratio (min) dB 9
Optical Return Loss Tolerance (min) dB 12
Receiver
Center Wavelength (range) nm 1310
Receive Overload (max) in Average Power(note 1) dBm -8
Receive Sensitivity (min) in A Power(note 1) dBm -32
Receiver Reflectance (max) dB -12
Los Assert(min) dBm -33
Los Dessert(max) dBm -30
Los Hysteresis(min) dB 0.5
Receiver power (damage, Max) dBm -7
Notes:
1. Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
2. Power budget is defined as the different between the Rx sensitivity andthe Tx output power of the interface.

 

Electrical Characteristics
Parameter Symbol Min. Typical Max Unit Notes
Data Rate – – 1.25 – Gbps –
Power Consumption – – 800 1000 mW –
Transmitter
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Common Mode Voltage Tolerance – 15 – – mV –
Tx Input Diff Voltage VI 180 – 1200 mV –
Tx Fault VoL -0.3 – 0.4 V At 0.7mA
Data Dependent Input Jitter DDJ – – 0.1 UI –
Data Input Total Jitter TJ – – 0.28 UI –
Receiver
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Rx Output Diff Voltage  Vo 400 ‐ 2400 mV LOS Assert Time LOS De‐assert Time
LOS Assert Time TAssert ‐ ‐ 500 ns
LOS De‐assert Time TDeassert ‐ ‐ 500 ns
Receiver Threshold Settling Time TSETTLING ‐ ‐ 250 ns

 

OLT SFP MODULE PIN DEFINITION
PIN DEFINITION EPON OLT PX20+-3dBm-1.25G-1490-1310nm-20km SC SX

 

PIN Logic Symbol Name / Description Note
1 – VeeT Module Transmitter Ground 1
2 LVTTL-O TX_Fault Module Transmitter Fault –
3 LVTTL-I TX_Dis Transmitter  Disable; Turns off Transmitter Laser Output –
4 LVTTL-I/O SDA 2-Wire Serial Interface Data Line 2
5 LVTTL-I SCL 2-Wire Serial Interface Clock 2
6 – MOD_DEF0 Module Definition, Grounded in the Module –
7 – NC Not Connect –
8 LVTTL-O RX_LOS Receiver Loss of Signal Indication Active LOW –
9 – VeeR Module Receiver Ground –
10 – VeeR Module Receiver Ground 1
11 – VeeR Module Receiver Ground 1
12 LVPECL-O RD- Receiver Inverted Data Output –
13 LVPECL-O RD+ Receiver Data Output –
14 – VeeR Module Receiver Ground 1
15 – VccR
Module Receiver 3.3 V Supply
 –
16 – VccT Module Receiver 3.3 V Supply –
17 – VeeT Module Transmitter Ground 1
18 CML-I TD+ Transmitter Non-Inverted Data Input –
19 CML-I TD- Transmitter Inverted Data Input –
20 – VeeT Module Transmitter Ground 1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

 

PRODUCT CERTIFICATION
certification and compliance module

 

QUALITY ADVANTAGE
PHILISUN quality advantage graphic

 

COMPATIBLE BRANDS
Compatible optical transceiver brands graphic
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

PX20+++ 8dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

]]> PX20+ 3dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver https://www.philisun.com/products/epon-olt-px20-3dbm-1g-1490-1310nm-20km-sc-sx/ Wed, 12 Nov 2025 08:46:57 +0000 https://www.philisun.com/?post_type=product&p=2740 SFP-EPON-PX20+1.25-1413-20-SCS

PX20+ 3dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

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SPECIFICATIONS
Product ModelSFP-EPON-PX20+1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate1.25GbpsClassPX20+
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power2.5~7.0dBmReceiver Sensitivity-30dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload-8dBm
Power Consumption<1WProtocolsSFP MSA SFF-8472
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN EPON OLT PX20+ 3dBm Transceiver is a bidirectional 1.25G SFP module designed for OLT equipment, operating at 1490nm downstream / 1310nm upstream wavelengths over single-mode fiber (SMF) for distances up to 20km. Featuring an SC connector interface and compliant with the PX20+ class with a 3dBm optical budget, it provides differential 100 Ohm termination for both transmitter input and receiver output data lines. Internal AC coupling ensures quality signal termination, while its design minimizes differential-to-common mode conversion for enhanced signal integrity and reduced EMI.

 

TRANSCEIVER SERIES PRODUCTS
epon olt px20 3dbm 1G 1490 1310nm 20km SC SX transceiver series products

 

PRODUCTION & TESTING EQUIPMENT
epon olt px20 3dbm 1G 1490 1310nm 20km SC SX transceiver production and testing equipment

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Power Supply Voltage VCC 0 3.6 V
Storage Temperature Tc -40 85 ℃
Operating Case Temperature Tc 0 70 ℃
TI -40 85
Relative Humidity RH 5 95 %
RX Input Average Power Pmax – -7 dBm
These  values  represent  the  damage  threshold  of the  module.  Stress  in  excess  of  any  of the  individual Absolute  maximum  ratings  can  cause  immediate  catastrophic  damage  to  the  module  even  if  all  other parameters are within recommended operating conditions.

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current Icc – – 300 mA
Operating Case
Temperature		 TC 0 25 70 ℃
TI -40 25 85
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.

 

Optical Characteristics
Parameters Unit Values
Operating Reach m 2 – 20K
Transmitter
Center Wavelength nm 1490
Side Mode Suppression Ratio (min) dB 30
Launched power
– maximum (Average) dBm 7
– minimum (Average) dBm 2.5
Average Launch Power of OFF Transmitter (max) dBm -30
Extinction Ratio (min) dB 9
Optical Return Loss Tolerance (min) dB 12
Receiver
Center Wavelength (range) nm 1310
Receive Overload (max) in Average Power(note 1) dBm -8
Receive Sensitivity (min) in A Power(note 1) dBm -30
Receiver Reflectance (max) dB -12
Los Assert(min) dBm -33
Los Dessert(max) dBm -30
Los Hysteresis(min) dB 0.5
Receiver power (damage, Max) dBm -7
Notes:
1. Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
2. Power budget is defined as the different between the Rx sensitivity andthe Tx output power of the interface.

 

Electrical Characteristics
Parameter Symbol Min. Typical Max Unit Notes
Data Rate – – 1.25 – Gbps –
Power Consumption – – 800 1000 mW –
Transmitter
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Common Mode Voltage Tolerance – 15 – – mV –
Tx Input Diff Voltage VI 180 – 1200 mV –
Tx Fault VoL -0.3 – 0.4 V At 0.7mA
Data Dependent Input Jitter DDJ – – 0.1 UI –
Data Input Total Jitter TJ – – 0.28 UI –
Receiver
Single Ended Output Voltage Tolerance – -0.3 – 4 V –
Rx Output Diff Voltage  Vo 300 ‐ 1000 mV LOS Assert Time LOS De‐assert Time
LOS Assert Time TAssert ‐ ‐ 500 ns
LOS De‐assert Time TDeassert ‐ ‐ 500 ns
Receiver Threshold Settling Time TSETTLING ‐ ‐ 250 ns

 

OLT SFP MODULE PIN DEFINITION
PIN DEFINITION EPON OLT PX20+-3dBm-1.25G-1490-1310nm-20km SC SX

 

PIN Logic Symbol Name / Description Note
1 – VeeT Module Transmitter Ground 1
2 LVTTL-O TX_Fault Module Transmitter Fault –
3 LVTTL-I TX_Dis Transmitter  Disable; Turns off Transmitter Laser Output –
4 LVTTL-I/O SDA 2-Wire Serial Interface Data Line 2
5 LVTTL-I SCL 2-Wire Serial Interface Clock 2
6 – MOD_DEF0 Module Definition, Grounded in the Module –
7 LVTTL-I RS0 Receiver Rate Select –
8 LVTTL-O RX_LOS Receiver Loss of Signal Indication Active LOW –
9 LVTTL-I RS1 Transmitter Rate Select (not used) –
10 – VeeR Module Receiver Ground 1
11 – VeeR Module Receiver Ground 1
12 LVPECL-O RD- Receiver Inverted Data Output –
13 LVPECL-O RD+ Receiver Data Output –
14 – VeeR Module Receiver Ground 1
15 – VccR
Module Receiver 3.3 V Supply
 –
16 – VccT Module Receiver 3.3 V Supply –
17 – VeeT Module Transmitter Ground 1
18 CML-I TD+ Transmitter Non-Inverted Data Input –
19 CML-I TD- Transmitter Inverted Data Input –
20 – VeeT Module Transmitter Ground 1
Note:
1. Module ground pins GND are isolated from the module case.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

 

PRODUCT CERTIFICATION
certification and compliance module

 

QUALITY ADVANTAGE
PHILISUN quality advantage graphic

 

COMPATIBLE BRANDS
Compatible optical transceiver brands graphic
CONFIGURATION INFORMATION
The form can be filled in the actual website url.

 

PX20+ 3dBm EPON OLT 1.25G 1490/1310nm 20km Simplex SC SMF DOM Transceiver最先出现在www.philisun.com。

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