The SF16 receives and transmits 1xSTM-16 optical signals (2.666 Gbit/s with the out-band FEC function) and processes overhead bytes.
Table 1 provides the functions and features of the SF16.
Table 1 Functions and features of the SF16
| Function and Feature | Description |
| Basic functions | - Receives and transmits 1xSTM-16 optical signals (2.666 Gbit/s with the out-band FEC function).
- Supports the enabling or disabling of the FEC function.
|
| Specifications of the optical interface | - Supports different types of standard optical interfaces, namely, the Ue-16.2c, Ue-16.2d, and Ue-16.2f. The characteristics of the optical interfaces comply with the standards defined by .
- Supports the output of the standard wavelengths that comply with ITU-T G.692 and can be directly connected to the DWDM equipment.
- Supports the DWDM colored optical interfaces. The optical interface uses the LC connector. The DWDM optical interface supports the transmission distance of 640 km.
|
| Specifications of the optical module | - Supports the detection and query of the information about the optical module.
- Provides the ALS function. The optical interface supports the setting of the on/off state of a laser.
|
| Service processing | - Supports the VC-12 services, VC-3 services, VC-4 services, VC-4-4c concatenation services, VC-4-8c concatenation services, and VC-4-16c concatenation services.
- Encapsulates and encodes the signals with the FEC function, and processes overhead bytes, which comply with ITU-T G.709.
|
| Overhead processing | - Processes the section overheads of the STM-16 signals.
- Supports the transparent transmission and termination of the path overheads.
- Supports the setting and query of the J0, J1, and C2 bytes.
- Supports one channel of ECC communication.
|
| Alarms and performance events | Reports various alarms and performance events. |
| Specifications of the REG | Does not support the REG. |
| Protection schemes | - Supports the Two-fiber ring MSP, Four-fiber ring MSP, Linear MSP, SNCP, SNCTP, and SNCMP.
- Supports the fiber-shared MSP and SNCP and processes two sets of K bytes. One SF16 supports a maximum of two MSP protection rings.
|
| Maintenance features | - Supports inloops and outloops at optical interfaces.
- Supports inloops on VC-4 paths.
- Supports warm resets and cold resets. The warm reset does not affect services.
- Supports the query of the manufacturing information of the board.
- Supports the in-service loading of the FPGA.
- Supports the upgrade of the board software without affecting services.
- Supports the press-to-collect function in fault data collection.
|
The technical specifications of the SF16 include the parameters specified for optical interfaces, laser safety class, mechanical specifications, and power consumption.
Parameters Specified for Interfaces
Table 1 lists the parameters specified for the optical interfaces of the SF16.
Table 1 Specifications of the ports
| Port type | Description |
| Ue-16.2c | Ue-16.2c two-fiber bidirectional optical interfaces |
| Ue-16.2d | Ue-16.2d two-fiber bidirectional optical interfaces |
| Ue-16.2f | Ue-16.2f two-fiber bidirectional optical interfaces |
| 640 km DWDM | 640 km DWDM STM-16 optical interfaces (FEC) |
Laser Safety Class
The safety class of the laser on the board is Class 1. The maximum launched optical power of the optical interfaces is less than 10 dBm (10 mW).
Mechanical Specifications
The mechanical specifications of the SF16 are as follows:
- Dimensions (mm): 25.4 (W) x 235.2 (D) x 261.4 (H)
- Weight (kg): 1.1
Power Consumption
The maximum power consumption of the SF16 at room temperature (25°C) is 26 W.
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