2.5g/1.25g Tx1490nm/Rx1310nm Gpon Olt SFP C++

• Usage: Telephone, Computer, Workstation, Server, Mobile phone, Data Center
• Type: Both Wired and Wireless
• Support Network: Ethernet, GPRS, Data, Voice
• Information content: Data, Voice, Message
• Certification: CE, ISO, RoHS, FCC
• Condition: New
• Model NO.: LAGU-T31S-20B
• Transport Package: Blister Pack
• Trademark: Linksall
• Origin: China
• HS Code: 8517706000
• Production Capacity: 100, 000 Per Year

Product Description

GPON ONU SFP Module


Product Features

• • Support ITU-T 984.2/984.5 GPON Networks application
  • Single fiber bi-directional data links with asymmetric 1.244Gbps Tx and 2.488Gbps Rx
  • 1310nm burst-mode transmitter with DFB laser
  • 1490nm continuous-mode receiver with APD-TIA
  • 2-wire interface for integrated digital diagnostic Monitoring
  • Transmitter state indication (TX_SD)
  • SFP package with SC/UPC receptacle optical interface
  • Single +3.3V power supply
  • Operation case temperature -40~85°C for industrial and -10~70°C for commercial
  • RoHS6 compliance

Operating Condition

Parameter	Unit	Min.	Typical	Max.
Storage Temperature	°C	-40		85
Operating Case Temp for C-temp	°C	0		70
Operating Case Temp for I-temp	°C	-40		85
Power Supply Voltage	V	3.15	3.3	3.45
Supply Current	mA		200	400
Bit Rate for Tx	Gbps	1.244
Bit Rate for Rx	Gbps	2.488

Characteristics
All performance is specified at whole working temperature and conditions

Parameter	Unit	Min.	Typical	Max.
Transmitter
TX Central Wavelength	nm	1290	1310	1330
Spectral Width (-20dB)	nm			1
Side Mode Suppression Ratio (SMSR)	dB	30
Mean Launched Power	dBm	0.5		5
Mean Launched Power (TX Off)	dBm			-45
Extinction Ratio	dB	10
Optical Return Loss Tolerance	dB	-15
Transmitter and dispersion Penalty	dB			1
Transmitter Mask (PRBS2^23[email protected])	Compliant With ITU-T G984.2
Receiver
Receive Wavelength	nm	1480	1490	1500
Sensitivity (PRBS2^23[email protected], ER=8.2, BER<10^-10)	dBm			-28
Overload (PRBS2^23[email protected], ER=8.2, BER<10^-10)	dBm	-8
Loss of signal De-assert Level	dBm			-29
Loss of signal assert Level	dBm	-39
LOS Hysteresis	dB	0.5		6
WDM Filter isolation to 1441 nm ~1450 nm,1530 nm ~1539 nm	dB	25
WDM Filter isolation to 1250 nm ~1441 nm,1539 nm~ 1625 nm	dB	36
Electrical Interface Characteristics
Data Input Swing Differential/TX	mV	200	-	2000
Data Output Swing Differential/RX	mV	400		1600
Date Differential Impedance	Ω	90	100	110
LVTTL Output High	V	2.4		Vcc
LVTTL Output Low	V	0		0.4
LVTTL Input High	V	2.0		Vcc+0.3
LVTTL Input Low	V	0		0.8
Timing Characteristics
Turn On Time at Burst mode (TON)	ns			12.8
Turn Off Time at Burst mode (TOFF)	ns			12.8
TX-SD Assert Time (TTXSD_ON)	ns			100
TX-SD De-assert Time (TTXSD_OFF)	ns			100
LOS Assert Time (TLOSA)	us			100
LOS De-assert Time (TLOSD)	us			100

Burst Mode Transmitter Timing (D23446-SSCA, TX_Burst signal low active transmitter on)

PIN Definition

Pin No.	Symbol	Level / Logic	Description
1	VeeT		Module Transmitter Ground
2	Tx_Fault	LVTTL-O	Module Transmitter Fault
3	Tx_Burst	LVTTL-I	Transmitter Burst Control, D23446-SSC(H)A active low for transmitter on D23446-SSC(H)B active high for transmitter on
4	SDA	LVTTL-I	2-Wire Serial Interface Data Line
5	SCL	LVTTL-I/O	2-Wire Serial Interface Clock
6	MOD_ABS	LVTTL-O	Module Absent, connected to ground in the module
7	TX_SD	LVTTL-O	Tx Signal Detect, active high when transmitter on
8	RX_LOS	LVTTL-O	Loss of Receiver Signal Indication
9	NC
10	VeeR		Module Receiver Ground
11	VeeR		Module Receiver Ground
12	RD-	CML-O	Receiver Inverted Data Output, AC-coupled
13	RD+	CML-O	Receiver Non-Inverted Data Output, AC-coupled
14	VeeR		Module Receiver Ground
15	VccR		Module Receiver 3.3V Supply
16	VccT		Module Transmitter 3.3V Supply
17	VeeT		Module Transmitter Ground
18	TD+	LVPECL-I	Transmitter Non-Inverted Data Input, DC-coupled
19	TD-	LVPECL-I	Transmitter Inverted Data Input, DC-coupled
20	VeeT		Module Transmitter Ground

Ordering Information

Ordering P/Ns	Description
L LAGU-T31S-20B+(C)	GPON SFP ONU, B+,1.244Gbps Tx 1310nm, 2.488Gbps Rx 1490nm, TX_Burst signal high active transmitter on, SFP form-factor, SC/UPC receptacle connector, Commercial temperature
L LAGU-T31S-20B+(I)	GPON SFP ONU, B+,1.244Gbps Tx 1310nm, 2.488Gbps Rx 1490nm, TX_Burst signal high active transmitter on, SFP form-factor, SC/UPC receptacle connector, Industrial temperature