| Model Number | TGLS-4121-D0IS | Type | Optical Transceiver |
| Place of Origin | Guangdong, China | Brand Name | Tometek/OEM/ODM |
| Use | Gigabit-capable Passive Optical Networks (GPON) | Warranty Time | 1 Year |
| Supported media | Single-mode fiber | Connector type | SC/UPC |
| TX wavelength | 1490 nm | RX wavelength | 1310 nm |
| TX PWR | +6 ~ +10 dBm | RX Sensitivity | u2264-33 dBm |
| Data rate (TX/RX) | 2.5Gbps/1.25Gbps | 2.488Gbps/1.244Gbps | 20 KM |
| Power supply | Single +3.3V | Operating case temperature | -40u2103~+85u2103 |
D501, 5th Floor, Office Building, Jinpeng Digital Industrial Park, Xinxue Community, Bantian Street, Shenzhen, Guangdong, China