Description
Key Features
- 3ah Gigabit Ethernet compliant
- Bi-directional 1.25Gbps Upstream/1.25Gbps Downstream
- 4 Miles (20Km) transmission distance
- 2×10 pin SFF package with SC Receptacle
- 1310nm Burst Mode 1.25Gbps transmitter
- 1490nm Continuous Mode 1.25Gbps Receiver
- RoHS compliant and lead-free
- LVTTL Bias Control input and Rx Signal Detect output
- Laser Class 1 Product which complies with the requirements of IEC 60825-1 and IEC 60825-2
- Single +3.3V power supply
Technical Specifications
| Protocol | 2-wire serial communication |
| Working Range | Up to 12.4miles (20km) |
| Standards | IEEE802.3ah Gigabit Ethernet
Laser Class 1 Product with the Requirements of IEC 60825-1 and IEC 60825-2 IEC/EN 61000-4-2 IEC/EN 60950 ROHS 2002/95/EC |
| Data rate | 1.25 Gb/s |
| Wavelength | 1490nm |
| Connector Type | SC/UPC Connector |
| Transmitter Extinction Ratio | 9dB |
| Transmitter OFF Output Power | -45dBM |
| Transmitter Differential Line Input Impedance | 80-120 Ω |
| Receiver Sensitivity | -27 dBm |
| Receiver Input Saturation Power | -3 dBm |
| Dimensions | 1.90in x 0.52in x0.38in( 48.4×13.4×9.8 mm) |
| Supply Voltage | -0.3 to 4V |
| Storage Temperature | -40 °F to 185 °F (-40°C to 85°C) |
| Storage Ambient Humidity | 5% to 95% |
| Case Operating Temperature | 32°F to 158°F (0°C to 70°C) |
PIN Descriptions:
Electrical Interface Characteristics
Note(1): Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer.
Ordering Information
| GAO Product ID | Data Rate (Mbps) | Wavelength(nm)
Tx (Rx) |
Temperature Range(°F） (Tcase) | BEN(Enable Signal) |
| GAO-GEPONU-102-A | 1250 | 1310(1490) | -40°F to 158°F (0°C to 70°C) | High |
| GAO-GEPONU-102-B | 1250 | 1310(1490) | -40°F to 158°F (0°C to 70°C) | Low |
| GAO-GEPONU-102-C | 1250 | 1310(1490) | -40°F to 185°F (-40°C to 85°C) | High |
| GAO-GEPONU-102-D | 1250 | 1310(1490) | -40°F to 185°F (-40°C to 85°C) | Low |
Transmitter Burst Mode Timing Characteristic(BEN=Low level)
Burst Mode Digital Diagnostic Monitor Interface (DDMI) Description
The DDMI can detect TX power, RX power, Bias current, Temperature and VCC.
| Monitor Scope | Monitor Error | |
| TX power | -3dBm ~8 dBm | ±3dBm |
| RX power | -3dBm~27dBm | ±3dBm |
| Bias | 0mA~90mA | ±10% |
| Temperature | -40°F to 185°F | ±41°F |
| Vcc | 2.8V~3.8V | ±5% |
Recommended Interface Circuit
Regulatory Compliance
Outline Dimensions
| Parameter | Unit | Description | Note |
| Mechanical Dimensions | Inches(mm) | 1.90 x0.52 x0.38 ( 48.4×13.4×9.8) | |
| Connector Type | – | SC/UPC Connector | IEC-61754-4 |
Applications:
- IEEE 802.3ah 1000BASE-PX10/20-U
- GE-PON ONU
- Burst Mode Application
- FTTx WDM Broadband Access