Generic Compatible C++ 7dBm GPON OLT 2.5/1.25G 1490/1310nm 20km Simplex SC SMF DOM Optical Transceiver Module

SFP-GPON-C++2.5/1.25-1413-20-SCS

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SPECIFICATIONS
Product ModelSFP-GPON-C++2.5/1.25-1413-20-SCSManufacturer BrandPHILISUN
Package TypeSFPOptical ConnectorSC
Max Data Rate2.5/1.25GbpsClassC++
Effective transmission distance20KM
Wavelength1310nm/1490nm
1490nm/1310nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFBReceiver TypeAPD
TX Power4.5~10dBmReceiver Sensitivity-31dBm
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 GPON OLT C++ 7dBm Transceiver is a premium-grade SFP module engineered for Optical Line Terminal applications, delivering high-speed asymmetric data transmission at 2.488Gbps downstream (1490nm) and 1.244Gbps upstream (1310nm) over single-mode fiber with 20km reach. Featuring an SC/UPC connector interface and compliant with the enhanced GPON C++ class offering a 7dBm optical budget, this transceiver enables bidirectional communication on a single fiber while supporting Digital Diagnostic Monitoring (DDM) per SFF-8472 for real-time performance tracking. It fully meets ITU-T G.984.2 standards and RoHS compliance requirements.

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Storage Temperature TS -40 +85 ℃
Operating Temperature Top 0 +70 ℃
Supply Voltage VCC -0.5 +3.6 V
Power Supply Current ICC – 400 mA
Voltage at Any Input Pin VIN 0 Vcc V

 

Recommended Operating Environment
Parameter Symbol Min. Typical Max. Unit
Operating Temperature Top 0 – +70 ℃
Supply Voltage VCC 3.1 3.3 3.5 V
Tx Data Rate – – 2488 – Mb/s
Rx Data Rate – – 1244 – Mb/s

 

Electrical
Parameter Symbol Min. Typ. Max. Unit
Transmitter（T=0 to +70℃, VCC =3.1~3.5V)
Central Wavelength λC 1480  1490  1500  nm
Spectral Width Δλ – – 1  nm
Side Mode Suppression Ratio SMSR 30  – – dB
Output Power Po 4.5  – 10  dBm
Extinction Ratio ER 8.2  – – dB
Output Power at Transmit Off – – – -40  dBm
Differential Input Voltage VIH- VIL 200  – 1600  mV
TX Disable Input Voltage Low TX_DISABLEL 0  – 0.8  V
TX Disable Input Voltage High TX_DISABLEH 2.0  – Vcc V
TX Fault Output Voltage Low TX_FAULTL 0  – 0.8  V
TX Fault Output Voltage High TX_FAULTH 2.0  – VCC+0.3 V
Eye Diagram Compliance with ITU-T G.984.2
Receiver（T=0 to +70℃, VCC =3.1~3.5V)
Wavelength Range λ 1260  – 1360  nm
MIN. Input Power (Sensitivity) PMIN – – -31  dBm
MAX. Input Power (Saturation) PMAX -12  – – dBm
Signal Detect-Asserted PA – – -30  dBm
Signal Detect-Deasserted PD -45  – – dBm
Signal Detect Hysteresis PHYS 0.5  – 6  dB
Return Loss ORL 12  – – dB
RX Loss of Signal Output Voltage Low RX_LOSL 0  – 0.8  V
RX Loss of Signal Output Voltage High RX_LOSH 2.0  – VCC+0.3 V
LOS Assert Time TAssert – – 100  ns
LOS De-assert Time TDeassert – – 12.8  ns

 

Digital RSSI Timing Specification
Parameter Minimum Typical Maximum Unit Notes
RSSI Trigger Delay 25 – – ns –
RSSI Sampling Time 300 – – ns –
Internal I2C Delay – – 500 us –
Receiver Power DDM(RSSI) Error – – +/-3 dB –
a) RSSI_ACQ input signal rising edge will trigger RSSI sampling, and falling edge will trigger internal digital RSSI information written to I2C. It is recommended that host shall not trigger RSSI_ACQ input again until RSSI data is valid inI2C from previous RSSI trigger.

b) RSSI DDM working range is between -8 to -28dBm. RSSI DDM accuracy is better than +/-3dB for input power level between -10 to -28dBm, the accuracy reduces to +/-5dBm to -10 dBm. If the data pattern is at least 2^7-1 or longer, a minimum average of 8 times is strongly recommended to maintain the RSSI reading accuracy.

 

EEPROM Serial ID Memory Contents (A0h)
Address Size(Bytes) Name of Field Hex Description of Field
0 1 Identifier 03 SFP
1 1 Ext. Identifier 04 MOD4
2 1 Connector 01 SC
3—10 8 Transceiver 00 00 00 00 00 00 00 00 Transceiver Code Field,not applicable
11 1 Encoding 03 NRZ encoding
12 1 BR, nominal 19 2488.32Mbps
13 1 Reserved 00 Reserved
14 1 Length(9um)-km 14 20(Units of km)
15 1 Length (9um) C8 200(Units of 100 m)
16 1 Length (50um) 00 Not Support MMF
17 1 Length (62.5um) 00 Not Support MMF
18 1 Length (copper) 00 Not Support Copper
19 1 Reserved 00 –
20—35 16 Vendor name XXXXX “ODI”
36 1 Reserved 00 –
37—39 3 Vendor OUI 000000 –
40—55 16 Vendor PN XXXXX “PART NUMBER ” (ASCⅡ)
56—59 4 Vendor rev xxxx xxxx ASCⅡ (“31 2E 31 20” means 1. 1 revision)
60-61 2 Wavelength 05 D2 1490nm Laser wavelength
62 1 Reserved 00 –
63 1 CC BASE xx Checksum of bytes 0 – 62
64—65 2 Options 00 1A LOS, TX_FAULT and TX_DISABLE
66 1 BR, max 00 –
67 1 BR, min 00 –
68—83 16 Vendor SN xxxx xxxx xxxx xxxx
xxxx xxxx xxxx xxxx		 SN ：xxxxxxxxx    (ASCⅡ)
84—91 8 Vendor date code xxxx xxxx xxxx 20 20 Year (2 bytes), Month (2 bytes), Day (2bytes) (ASCⅡ)
92 1 Diagnostic type 58 Externally Calibrated
93 1 Enhanced option B0 Diagnostic(Optional Alarm/warning flags)
Soft TX_FAULT monitoring implemented
Soft RX_LOS monitoring implemented
94 1 SFF-8472 01 Includes functionality described in Rev 9. 4 SFF-8472
95 1 CC_EXT xx Checksum of bytes 64 – 94
96—127 32 Vendor specific – Vendor Specific EEPROM
128-255 128 Reserved – Reserved for future use.
Note：
1.The“ xx” byte should be filled in according to practical case.
2. Note that, A0H is readable and writeable , A2H is readable and write-protected.

 

Pins Assignment

 

Function Definition
Pin No. Name Function Plug Seq. Notes
1 VeeT Tx Ground 1 –
2 TX Fault Transmitter Fault Indication,LVTTL Output Active High 3 Note 1
3 TX Disable Transmitter Disable,LVTTL input. 3 Note 2
4 MOD-DEF2 2-Write Serial Data I/O Pin. 3 Note 3
5 MOD-DEF1 2-Write Serial Data I/O Pin. 3 Note 3
6 MOD-DEF0 Internally Grounded 3 Note 3
7 Reset CMOS input.Assert “Reset”high at the end of previous burst,2 byte in duration 3 –
8 BRST_Det LVTTL output.BRST_Det assert low  when  module  receives“reset”signal,  assert  high  when  incoming burst is present. 3 Note 4
9 RSSI_ACQ RSSI   acquire/hold LVTTL input. Digital RSSI output through I2C 1 –
10 VeeR Receiver Ground 1 –
11 VeeR Receiver Ground 1 –
12 RD- Inv. Received Data Out 3 Note 5
13 RD+ Received Data Out 3 Note 5
14 VeeR Receiver Ground 1 –
15 VccR Receiver Power 2 –
16 VccT Transmitter Power 2 –
17 VeeT Transmitter Ground 1 –
18 TD+ Transmit Data In 3 Note 6
19 TD- Inv Transmit Data In 3 Note 6
20 VeeT Transmitter Ground 1 –
Notes:
1. TX Fault is an open collector output, which should be pulled up with a 4.7K~10KΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.2. TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7K~10KΩ resistor. Its states are:
Low (0~0.8V): Transmitter on
(>0.8V, <2.0V): Undefined
High (2.0~3.465V): Transmitter Disabled
Open:Transmitter Disabled.3. MOD-DEF 0,1,2 are the module definition pins. They should be pulled up with a 4.7K~10KΩ resistor on the host board. The pull-up voltage shall be VccT or VccR.
MOD-DEF 0 is grounded by the module to indicate that the module is present.
MOD-DEF 1 isthe clock line of two wire serial interface for serial ID.
MOD-DEF 2 isthe data line of two wire serial interface for serial ID.4. LOS is an open collector output, which should be pulled up with a 4.7K~10KΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. In the low state, the output will be pulled to less than 0.8V.5. These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) atthe user SERDES.6. These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

 

PRODUCT CERTIFICATION

 

QUALITY ADVANTAGE

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
光模块产品详情订购信息---EPON

 

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