Audited Supplier
LAGU-T31S-20B
Telephone, Computer, Workstation, Server, Mobile phone, Data Center
Both Wired and Wireless
Ethernet, GPRS, Data, Voice
Data, Voice, Message
CE, ISO, RoHS, FCC
New
Linksall
Blister Pack
China
8517706000
Product Description
GPON ONU SFP Module
Product Features
Operating Condition
Characteristics
All performance is specified at whole working temperature and conditions
Burst Mode Transmitter Timing (D23446-SSCA, TX_Burst signal low active transmitter on)
PIN Definition
Ordering Information
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 (PRBS223-1@1.244G) | Compliant With ITU-T G984.2 | |||
| Receiver | ||||
| Receive Wavelength | nm | 1480 | 1490 | 1500 |
| Sensitivity (PRBS223-1@2.488G, ER=8.2, BER<10-10) | dBm | -28 | ||
| Overload (PRBS223-1@2.488G, 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 |
