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Description
SSQ2CXL1612 Version Description
The CXL16 is available in several functional versions. The functions provided by the functional versions are different.
| Item | Description |
|---|---|
| Functional versions | The CXL16 is available in two functional versions, namely, Q2 and Q3. The Q3CXL16 is discontinued. |
| Differences |
|
| Substitution | The Q5CXLLN can substitute for the Q2CXL16 that operates at the same line rate by using the board version replacement function, but active and standby boards must be the same, Q5CXLLN boards or Q2CXL16 boards. |
SSQ2CXL1612 Application
The CXL16 provides service processing, service grooming, clock input/output, and communication control functions in the OptiX OSN system.
The CXL provides the other boards in the system with the timing information, processes the SDH signals, grooms the services between line boards or tributary boards, communicates with the other boards in the system, and performs the configuration and management functions for the other boards in the system.
SSQ2CXL1612 Functions and Features
The CXL16 processes SDH signals, controls communication, grooms services, and inputs/outputs clock signals.
SDH Processing Unit
| Function and Feature | CXL16 |
|---|---|
| Basic functions | Transmits and receives 1xSTM-16 optical signals. |
| Specifications of the optical interface | Supports different types of standard optical interfaces, namely, the I-16, S-16.1, L-16.1, and L-16.2.
The Q2CXL16 supports the CWDM colored optical interface, which supports the transmission distance of 80 km. The Q2CXL16 supports the DWDM colored optical interface, which supports the transmission distance of 120 km. |
| Specifications of the optical module |
|
| 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-4-16 concatenation services. |
| Overhead processing |
|
| Alarms and performance events | Reports various alarms and performance events, which facilitates the management and maintenance of the equipment. |
| Protection schemes | Supports the following protection schemes:
|
| Maintenance features |
|
SCC Unit
| Function and Feature | CXL16 |
|---|---|
| Basic functions | Configures and monitors services, monitors the service performance, and collects the information about the performance events and alarms. |
| Specifications of the interfaces |
|
| Maintenance features | The Q3CXL16 supports the CF card, simulation package loading, and diffused loading. The CF card is hot swappable. The capacity of a standard CF card is 512 MB and can be expanded to 1 GB. |
| DCC processing capability | Supports channel types of D1-D1, D1-D3, and D4-D12. For details, see OAM Information Interworking. |
| Fan alarm management | Manages fan alarms. |
| PIU management | Supports the in-service check function for the PIU and supports the failure check function for the lightning protection module of the PIU. |
| Protection schemes | Supports the 1+1 Hot Backup for the Cross-Connect, Timing and SCC Units. |
Cross-Connect Unit
| Function and Feature | CXL16 |
|---|---|
| Basic functions |
|
| Fast emergency channel | Provides two 4 Mbit/s HDLC fast emergency channels, which are used for the MSP switching, SNCP switching, TPS, or other functions. |
| Service processing |
|
| Protection schemes | Supports the 1+1 Hot Backup for the Cross-Connect, Timing and SCC Units (non-revertive, by default). |
Clock Unit
| Function and Feature | CXL16 |
|---|---|
| Basic functions | Provides the standard system synchronization clock. |
| Other functions |
|
| Input and output |
|
SSQ2CXL1612 Valid Slots
The CXL16 must be installed in a valid slot in the subrack. Otherwise, the CXL16 cannot work normally.
The CXL16 can be installed in slots 4 and 5 in the subrack.
By default, slot 4 houses the active board and slot 5 houses the standby board.
SSQ2CXL1612 Feature Code
The number code that follows the board name in the bar code is the feature code of the board. The feature code of the CXL16 indicates the type of optical interface.
| Board | Feature Code | Type of Optical Interface |
|---|---|---|
| SSQ3CXL1601 and SSQ2CXL1601 | 01 | I-16 |
| SSQ3CXL1602 and SSQ2CXL1602 | 02 | S-16.1 |
| SSQ3CXL1603 and SSQ2CXL1603 | 03 | L-16.1 |
| SSQ3CXL1604 and SSQ2CXL1604 | 04 | L-16.2 |
SSQ2CXL1612 Parameter Settings
The physical slot that houses the CXL16 is different from the logical slot displayed on the U2000. You can set parameters for the CXL16 by using the U2000.
SSQ2CXL1612 Displayed Slots
The CXL16 occupies one slot in the subrack.
The logical boards for the CXL16 are the Q1SL16, EXCL, and GSCC.
| Board | Logical Board | Logical Slot |
|---|---|---|
| CXL16 | Q1SL16 | Slot 4 or slot 5 |
| ECXL | Slot 80 or slot 81 | |
| GSCC | Slot 82 or slot 83 |
SSQ2CXL1612 Board Parameters
You can set the following main parameters for the CXL16 by using the U2000:
- J0 byte
- J1 byte
- C2 byte
- Clock parameters
SSQ2CXL1612 Technical Specifications
The technical specifications of the CXL16 include the parameters specified for optical interfaces, laser safety class, mechanical specifications, and power consumption.
Parameters Specified for Optical Interfaces
| Parameter | Value | |||
|---|---|---|---|---|
| Nominal bit rate | 2488320 kbit/s | |||
| Line code pattern | NRZ | |||
| Application code | I-16 | S-16.1 | L-16.1 | L-16.2 |
| Transmission distance (km) | 0 to 2 | 2 to 15 | 15 to 40 | 40 to 80 |
| Operating wavelength range (nm) | 1266 to 1360 | 1260 to 1360 | 1280 to 1335 | 1500 to 1580 |
| Type of fiber | Single-mode LC | Single-mode LC | Single-mode LC | Single-mode LC |
| Mean launched optical power (dBm) | -10 to -3 | -5 to 0 | -2 to +3 | -2 to +3 |
| Receiver sensitivity (dBm) | -18 | -18 | -27 | -28 |
| Minimum overload (dBm) | -3 | 0 | -9 | -9 |
| Dispersion tolerance (ps/nm) | 12 | – | – | 1600 |
| Minimum extinction ratio (dB) | 8.2 | 8.2 | 8.2 | 8.2 |
| Maximum -20 dB spectral width (nm) | – | 1 | 1 | 1 |
| Minimum side mode suppression ratio (dB) | – | 30 | 30 | 30 |
| Parameter | Value |
|---|---|
| CWDM | |
| Nominal bit rate | 2488320 kbit/s |
| Type of fiber | Single-mode LC |
| Transmission distance (km) | 80 |
| Launched optical power range (dBm) | 0 to 5 |
| Operating wavelength range (nm) | 1471 to 1611, in steps of 20 |
| Receiver sensitivity (dBm) | -28 |
| Minimum overload (dBm) | -9 |
| Maximum allowed dispersion (ps/nm) | 1600 |
| Minimum extinction ratio (dB) | 8.2 |
| Maximum -20 dB spectral width (nm) | 1 |
| Minimum side mode suppression ratio (dB) | 30 |
| Parameter | Value |
|---|---|
| DWDM | |
| Nominal bit rate | 2488320 kbit/s |
| Type of fiber | Single-mode LC |
| Transmission distance (km) | 120 |
| Launched optical power range (dBm) | 0 to 4 |
| Central frequency (THz) | 192.10 to 196.00 |
| Central frequency deviation (GHz) | ±10 |
| Receiver sensitivity (dBm) | -28 |
| Minimum overload (dBm) | -9 |
| Maximum allowed dispersion (ps/nm) | 2400 |
| Minimum extinction ratio (dB) | 8.2 |
| Maximum -20 dB spectral width (nm) | 0.3 |
| Minimum side mode suppression ratio (dB) | 30 |
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