The SL16 receives and transmits 1xSTM-16 optical signals and
processes overhead bytes.
Table 1 provides the functions and features of the SL16.
Table 1 Functions and features of the SL16
| Function and Feature | Description |
|---|
| Basic functions | Transmits and receives 1xSTM-16 optical signals. |
| Specifications of the optical interface | - Supports different types of standard optical interfaces, namely,
the L-16.2, L-16.2Je, V-16.2Je (with the booster amplifier (BA)),
and U-16.2Je (with the BA and pre-amplifier (PA)). The
characteristics of the optical interface of the L-16.2 type comply
with ITU-T G.957 and ITU-T G.692. The characteristics of the
optical interfaces of the L-16.2Je, V-16.2Je (with the BA), and
U-16.2Je (with the BA and PA) types comply with the standards
defined by . U-16.2Je is compatible with U-16.2.
- Supports the output of the standard wavelengths that comply with
ITU-T G.692. The U-16.2Je optical interface can be directly
connected to the dense wavelength division multiplexing (DWDM)
equipment.
- The N3SL16 supports DWDM colored optical interfaces, which use LC
connectors and support the transmission distances of 170 km and 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.
- The N2SL16 supports the AU-3 services.
|
| 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, which facilitates
the management and maintenance of the equipment. |
| Specifications of the REG | - The N2SL16/N3SL16 board supports the setting and query of the REG
working mode.
- With the REG function enabled, the board is in RS loopback mode and
processes only the regeneration section overhead.
|
| Protection schemes | - Supports the Two-fiber ring MSP, Four-fiber ring MSP, Linear MSP,
SNCP, SNCMP, and SNCTP.
- Supports the fiber-shared MSP and SNCP and processes two sets of K
bytes. One SL16 supports a maximum of two MSP protection rings.
|
| Maintenance features | - Supports inloops and outloops at optical interfaces.
- The N1SL16 supports inloops on VC-4 paths. The N3SL16 board
supports inloops and outloops on 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.
- The N2SL16 and N3SL16 support the TCM function.
- Supports the upgrade of the board software without affecting
services.
- The N2SL16/N3SL16 board supports the TCM function.
- Supports the PRBS function. For details, see Availability.
- Supports the press-to-collect function in fault data collection.
|
Relationship between the feature code of the SL16 and the type of
optical interface
The technical specifications of the SL16 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 SL16.
Table 1 Specifications of the ports of the SL16
| Port type | Description |
|---|
| L-16.2 | 80 km STM-16 two-fiber bidirectional optical interfaces |
| L-16.2Je | 100 km STM-16 two-fiber bidirectional optical interfaces |
| V-16.2Je (BA) | 140 km STM-16 two-fiber bidirectional optical interfaces |
| U-16.2Je (BA+PA) | 170 km STM-16 two-fiber bidirectional optical interfaces |
Table 2 lists the parameters specified for the colored optical
interfaces of the N3SL16.
Table 2 Parameters specified for the colored optical interfaces of the
N3SL16
| Port type | Description |
|---|
| 170 km DWDM | 170 km DWDM STM-16 optical interfaces |
| 640 km DWDM | 640 km DWDM STM-16 optical interfaces |
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 SL16 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 N1SL16 and N2SL16 at room
temperature (25°C) is 20 W.
The maximum power consumption of the N3SL16 at room temperature
(25°C) is 22 W.
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