SDH processing unit
Table 1 Functions and features of SDH processing unit of SSQ5CXLL16 single boards
| Functions and Features |
Description |
| Basic Functions |
Receives and transmits 1 channel of STM-16 optical signals. |
| Optical Interface Specifications |
I-16, S-16.1, L-16.1 and L-16.2 standard optical modules.
Q2CXL16 single board supports CWDM color optical interface, CWDM color optical interface supports 80km transmission distance.
Q2CXL16 single board supports DWDM color optical interface, DWDM color optical interface supports 120km transmission distance.
|
| Optical Module Specifications |
- Support optical module information detection and query.
- Supports laser on and off setting and laser auto shutdown function.
- Q2CXL16 supports single-fiber bi-directional optical modules, and single-fiber bi-directional optical modules do not support the use of pigtails for optical interface loopback.
|
| Service Processing |
Supports VC-12/VC-3/VC-4 services and VC-4-4c, VC-4-8c, VC-4-16c cascade services. |
| Overhead processing |
- Supports segment overhead processing for STM-16 signals.
- Supports processing of channel overhead (transparent transmission and termination).
- Supports setting and querying of J0/J1/C2 bytes.
- Supports 1 channel ECC communication.
|
| Alarm and Performance |
Provides rich alarm and performance events for easy device management and maintenance. |
| Protection Mode |
The following protection methods are supported:
- Dual-fiber multiplexing segment ring protection
- Quad-fiber multiplexing segment ring protection
- Linear multiplexed segment protection
- SNCP protection
- SNCMP protection
- SNCTP protection
- Shared Fiber Virtual Path Protection
|
| Maintenance Features |
- Supports inner loopback and outer loopback functions at the optical port level.
- Supports soft reset and hard reset, soft reset does not affect service.
- Support query function of single board manufacturing information.
- Support FPGA online loading function.
- Support smooth upgrade of veneer software.
|
SSQ2CXL16/SSQ5CXL16/SSQDCXLL16 System Control and Communication Units
Table 2 Functions and Features of System Control and Communication Units of 2CXL16 Single Boards
| Functions and Features |
Description |
| Basic Functions |
Realizes the configuration and scheduling functions of equipment services, monitors service performance, and collects performance events and alarm information. |
| Interface Specifications |
- Provides one 10M/100M compatible Ethernet network management interface, which is led out through the SAP board.
- Provide RS232 mode interface OAM port for connecting with PC or workstation, support RS232 DCE Modem for remote maintenance, and lead out through SEI board.
- Provides 1 official telephone interface and 2 outgoing subnet telephone interfaces, leading out through the SEI board.
- Provide 4-way broadcast data port Serial 1 to 4, leading out through SEI board.
|
| Maintenance Features |
The Q3CXL16 supports CF card with analog packet loading and diffusion loading functions. The standard configuration of CF card capacity is 512M, which can be expanded to 1G. |
| DCC Processing Capability |
Supports D1-D1, D1-D3, and D4-D12 channel types, see Network Management Information Interoperability. |
| Fan Alarm Management |
Provides fan alarm management function. |
| PIU Management |
Provide the presence detection function of the PIU of the power access board and the failure detection function of the lightning protection module in the PIU. |
| Protection Mode |
Supports 1+1 hot backup of cross, clock and master control unit. |
SSQ2CXL16/SSQ5CXL16/SSQDCXLL16 Cross-connect Unit
Table 3 Functions and features of the cross-connect unit of the CXL16 single board
|
Functions and Characteristics
|
Description |
| Basic Functions |
- High-order crossover capability: 20Gbit/s
- Low-order crossover capacity: 20Gbit/s
- Access capacity: 18.75Gbit/s
|
| Fast emergency channels |
Provides two 4Mbit/s HDLC fast emergency channels for realizing MSP, SNCP, TPS inversion and other functions. |
| Service Processing |
- Realize flexible scheduling of services.
- Adding or deleting this service does not affect other services.
- Supports SNCP protection at VC-4, VC-3, and VC-12 levels.
- Supports cascading services VC-4-4c, VC-4-8c, and VC-4-16c.
- Supports up to 12 linear multiplexing segment protection groups.
- Supports up to 12 ring multiplexing segment protection groups.
- Supports up to 1184 SNCP protection pairs.
- Supports up to 592 SNCMP protection pairs.
- Supports up to 512 SNCTP protection pairs.
|
| Protection Mode |
Supports 1+1 hot backup of crossover, clock and master units, and the protection mode is non-recoverable inversion by default. |
Clock unit
Table 4 Functions and features of clock unit of CXL16 single board
| Functions and Characteristics |
Description |
| Basic Functions |
Provides a standard system synchronization clock. |
| Other Functions |
- Support SSM information, clock ID extraction, insertion and processing functions.
- Q3CXL16 supports two external clock ports to pass through DCC overhead information.
|
| Input/Output |
- Supports the input of two 2048kHz or 2048kbit/s timing signals, and provides the function of selecting external timing sources.
- Supports outputting 2-channel 2048kHz or 2048kbit/s timing signals.
|
SSQ2CXL16/SSQ5CXL16/SSQDCXLL16 Specifications
Optical Interface Specifications
Table 1 Optical interface specifications for CXL16 single boards
| Item |
Indicator Value |
| Nominal bit rate |
2488320 kbit/s |
| Line code type |
NRZ coded signal |
| Optical interface type |
I-16 |
S-16.1 |
L-16.1 |
L-16.2 |
| Transmission distance (km) |
0～2 |
2～15 |
15～40 |
40～80 |
| Operating wavelength range (nm) |
1266～1360 |
1260～1360 |
1280～1335 |
1500～1580 |
| Fiber Type |
Single-mode LC |
Singlemode LC |
Singlemode LC |
Single-mode LC |
| Transmit optical power range (dBm) |
-10 to -3 |
-5 to 0 |
-2 to 3 |
-2 to 3 |
| Optical receive sensitivity (dBm) |
-18 |
-18 |
-27 |
-28 |
| Minimum overload point (dBm) |
-3 |
0 |
-9 |
-9 |
| Dispersion tolerance (ps/nm) |
12 |
-Dispersion Tolerance (ps) |
-8 -9 -9 Dispersion tolerance (ps nm) |
1600 |
| Minimum extinction ratio (dB) |
8.2 |
8.2 |
8.2 |
8.2 |
| Maximum -20dB spectral width (nm) |
- |
1 |
1 |
1 |
| Minimum Side Mode Rejection Ratio (dB) |
- - - - - - - - - - - - - - - - - - - - - - - |
30 |
30 |
30 |
Table 2Q2CXL16 single-board color optical interface index (CWDM)
| Item |
Indicator Value |
| CWDM |
| Nominal bit rate |
2488320kbit/s |
| Optical interface type |
Single-mode LC |
| Transmission distance (km) |
80 |
| Transmit optical power range (dBm) |
0～5 |
| Operating wavelength range (nm) |
1471～1611 (Step: 20) |
| Optical reception sensitivity (dBm) |
-28 |
| Minimum overload point (dBm) |
-9 |
| Maximum allowable channel dispersion (ps/nm) |
1600 |
| Minimum extinction ratio (dB) |
8.2 |
| Maximum -20dB spectral width (nm) |
1 |
| Minimum Side Mode Rejection Ratio (dB) |
30 |
Table 3 Color optical interface metrics for Q2CXL16 single board (DWDM)
| Item |
Metric Value |
| DWDM |
| Nominal bit rate |
2488320kbit/s |
| Fiber Type |
Single-mode LC |
| Transmission distance (km) |
120 |
| Transmit optical power range (dBm) |
0～4 |
| Center frequency (THz) |
192.10～196.00 |
| Center frequency offset (GHz) |
±10 |
| Optical reception sensitivity (dBm) |
-28 |
| Minimum overload point (dBm) |
-9 |
| Maximum Allowable Channel Dispersion (ps/nm) |
2400 |
| Minimum extinction ratio (dB) |
8.2 |
| Maximum -20dB spectral width (nm) |
0.3 |
| Minimum Side Mode Rejection Ratio (dB) |
30 |
Laser Safety Class
Mechanical Specifications
- Veneer size: 25.4mm (W) x 235.2mm (D) x 261.4mm (H)
Power Consumption
The functions and characteristics of the SDH processing unit of the SSQ2CXL16/SSQ5CXL16/SSQDCXLL16 single board are shown in Table 1.
Chinese
English
