| Wavelength | BIDI (single fiber bi-directional) Tx 1310nm / Rx 1550nm |
| Fiber type | Single mode |
| Connector type | LC |
| Maximum distance | 20 km |
| Data Link | Up to 1Gb/s |
| Ethernet | 1000Base-LX |
| Operating temperature | -40° C ~ 85° C |
| Installation | For a fiber link, the RG-NIS-GE-SFP-20KM-SM1310-BIDI model should be used at one end and the RG-NIS-GE-SFP-20KM-SM1550-BIDI model at the other end. |