| Parameter | Value |
| Basic functions | PFL1 can Process 8xE1 optical signals. |
| Service processing | Receives/Transmits and processes 8 x E1 optical signals. |
| Supports transparent transmission in compliance with IEEE C37.94 to meet the transmission requirements of relay protection equipment in the electric power industry. |
| Optical port specifications | Supports I-2M optical ports, which comply with standards defined by Huawei. |
| Optical module specifications | Supports the detection and query of information about an optical module. |
| Allows setting the on/off state of a laser and supports the automatic laser shutdown (ALS) function. |
| Supports the usage and monitoring of eSFP optical modules, facilitating optical module maintenance. |
| Overhead processing | Processes path overheads at the VC-12 level, such as J2 bytes. |
| Alarms and performance events | Provides various alarms and performance events, facilitating equipment management and maintenance. |
| Maintenance features | Supports inloops and outloops at optical ports. |
| Supports warm resets and cold resets. Warm resets do not affect ongoing services. |
| Supports the query of board manufacturer information. |
| Supports in-service FPGA loading. |
| Supports board software upgrades without affecting ongoing services. |
| Supports the PRBS function. |
| Hot board swapping. |
| Protection scheme | TPS protection is not supported. |
| Parameters of the E1 optical interfaces of the OptiX OSN equipment |
| Nominal bit rate | 2048 kbit/s |
| Code type | NRZ |
| Type of optical interface | I-2M |
| Transmission distance (km) | 0 to 2 |
| Operating wavelength range (nm) | Single-mode: 1260 to 1360 |
| Multi-mode: 850 |
| Type of fiber | Single-mode LC/Multi-mode LC |
| Launched optical power (dBm) | -15 to -8 |
| Optical receiver sensitivity (dBm) | -23 |
| Minimum overload (dBm) | -8 |
| Minimum extinction ratio (dB) | 8.2 |
| Maximum -20 dB spectral width (nm) | - |
| Side mode suppression ratio (dB) | - |
