Cisco Systems Cisco ONS 15454 SDH manual Unframed , FAS , FAS + CAS

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Chapter 4 Turn Up Node

DLP-D69 Set Up External or Line Timing

•E1, 2.048 MHz, 64 KHz—Choose E1, 2.048 MHz, or 64 KHz depending on the signal supported in your market. For example, 64 KHz is used in Japan. E1, 2.048 MHz, and 64 KHz are physical signal modes used to transmit the external clock (from a global positioning satellite [GPS], for example) to BITS.

•BITS In State—If Timing Mode is set to External or Mixed, set the BITS In State for BITS-1 and/or BITS-2 to IS (in service) depending whether one or both BITS input pin pairs on the backplane are connected to the external timing source. If Timing Mode is set to Line, set the BITS In State to OOS (out of service).

•BITS Out State—If equipment is connected to the node’s BITS output pins on the backplane and you want to time the equipment from a node reference, set the BITS Out State for BITS-1 and/or BITS-2 to IS, depending on which BITS Out pins are used for the external equipment. If equipment is not attached to the BITS output pins, set the BITS Out State to OOS.

Step 4 If the BITS In State for BITS-1 and BITS-2 is set to OOS, continue with Step 5. If the BITS In State is set to IS for either BITS-1 or BITS-2, complete the following information:

•

Coding—Choose the coding used by your BITS reference, either

HDB3 or AMI (alternate mark

 

inversion). If you selected 2.048 MHz or 64 KHz, the coding option is disabled.

•

Framing—Choose the framing used by your BITS reference, either

unframed, FAS, FAS + CAS,

 

FAS + CRC, or FAS + CAS + CRC. If you selected 2.048 MHz or 64 KHz, the framing option is

 

disabled.

 

•Sync Messaging—Select the check box to enable synchronization status messaging (SSM). SSM is used to deliver clock quality. The SSM supported in SDH is G811, STU, G812T, G812L, SETS, DUS (ordered from high quality to low quality). If you selected 2.048 MHz or 64 KHz, the SSM option is disabled.

•AIS Threshold— Sets the quality level at which a node sends an alarm indication signal (AIS) from the BITS-1 Out and BITS-2 Out FMEC connectors. When a node times at or below the AIS threshold quality, an AIS is raised. (The AIS threshold is used when SSM is disabled or framing is set to unframed, FAS, or FAS + CAS.)

•LBO—Choose a BITS cable length. Line build out (LBO) relates to the BITS cable length.

•Sa bit—Choose one of 5 Sa bits ( Sa4, Sa5, Sa6, Sa7, or Sa8). The Sa bit transmits the SSM message. If you selected 2.048 MHz or 64 KHz, the Sa bit option is disabled.

Step 5 In the Reference Lists area, complete the information:

Note Reference lists define up to three timing references for the node and up to six BITS Out references. BITS Out references define the timing references used by equipment attached to the node’s MIC-C/T/P FMEC Timing A and Timing B Out connectors. If you attach equipment to the Timing A Out or Timing B Out connector, you normally attach it to a node with line mode because equipment near the external timing reference can be directly wired to the reference.

•NE Reference—Allows you to define three timing references (Ref 1, Ref 2, Ref 3). The node uses Reference 1 unless a failure occurs to that reference, in which case the node uses Reference 2. If Reference 2 fails the node uses Reference 3, which is typically set to Internal Clock. The internal clock is the Stratum 3 clock provided on the TCC2. The options displayed depend on the Timing Mode setting.

–Timing Mode set to External—Your options are BITS-1, BITS-2, and Internal Clock.

 

Cisco ONS 15454 SDH Procedure Guide, R4.6

4-24

January 2004

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Contents Turn Up Node Before You BeginNTP-D24 Verify Card Installation Install Cards and Fiber-Optic CableStop. You have completed this procedure NTP-D30 Create Users and Assign Security DLP-D74 Create a New User-Single NodeDLP-D75 Create a New User-Multiple Nodes Purpose Required/As NeededClick the Provisioning General tabs Confirmation dialog box, click Yes NTP-D279 Set Power Monitor Thresholds Node view, click the Provisioning General Power Monitor tabsNTP-D169 Set Up CTC Network Access DLP-D249 Provision IP Settings Click the Provisioning Network tabsCisco ONS 15454 SDH Procedure Guide, R4.6 Reboot Activity Active TCC2 LEDs Standby TCC2 LEDs Slot-0 Status=IpAddress Next Done Mod DLP-D65 Create a Static Route Cisco ONS 15454 SDH Reference ManualDLP-D250 Set Up or Change Open Shortest Path First Protocol Click the No Authentication buttonType- Choose Simple Password January DLP-D251 Set Up or Change Routing Information Protocol NTP-D27 Set Up the ONS 15454 SDH for Firewall Access Iiop port Port Function NTP-D28 Set Up Timing DLP-D68 Provision the Iiop Listener Port on the CTC ComputerDLP-D69 Set Up External or Line Timing Stop . You have completed this procedureUnframed , FAS , FAS + CAS DLP-D70 Set Up Internal Timing NTP-D170 Create Protection Groups Type Cards Description and Installation Requirements DLP-D71 Create a 11 Protection Group DLP-D72 Create a 1N Protection Group Click the Provisioning Protection tabsDLP-D73 Create a 1+1 Protection Group DLP-D252 Create a Y-Cable Protection Group Creating a Y-Cable Protection GroupNTP-D34 Set Up Snmp Box FigureCreating an Snmp Trap Without Proxy January

Cisco ONS 15454 SDH specifications

Cisco Systems has long been a leader in networking and telecommunications, and one of its notable products is the Cisco ONS 15454 SDH (Synchronous Digital Hierarchy) system. Designed to support a wide range of networking applications, this platform is particularly suited for the transportation of voice, data, and video across metropolitan and wide area networks.

One of the main features of the Cisco ONS 15454 is its modular architecture, allowing for flexible configurations to meet varying demands. This flexibility enables service providers and enterprises to scale their networks as needed, easily adding or removing modules without significant downtime. The system can accommodate multiple technologies, including SONET, SDH, and wavelength-division multiplexing (WDM), making it an excellent solution for diverse environments.

Another critical characteristic of the ONS 15454 is its high-capacity transport capabilities. It can handle up to 400 Gbps in a single chassis, enabling operators to manage larger amounts of data traffic efficiently. This scaling is crucial for meeting the ever-increasing requirements for bandwidth in modern networks, especially with the rise of cloud services and video streaming.

Furthermore, the Cisco ONS 15454 supports various interface options, including Ethernet, TDM, and fiber channel, enabling operators to adapt the system to their existing infrastructures. This compatibility simplifies integration with legacy systems, allowing for a smoother transition to more advanced technologies.

Cisco has also placed a strong emphasis on network management and operational efficiency with the ONS 15454. Integrated management tools provide real-time monitoring and diagnostics, facilitating proactive maintenance and reducing operational costs. The system is designed for high reliability, featuring built-in redundancy and failover capabilities to ensure continuous service availability.

The ONS 15454's versatility extends to its support for various service types, ranging from basic voice services to complex data applications. It can effectively create service level agreements (SLAs) and prioritize traffic, enhancing the quality of service for critical applications.

In conclusion, the Cisco ONS 15454 SDH platform stands out for its modular design, high capacity, adaptability to different technologies, and robust management capabilities. It serves as a reliable backbone for network operators seeking to future-proof their infrastructures while addressing the dynamic demands of modern communication services. With Cisco's reputation for quality and innovation, the ONS 15454 remains a preferred choice for service providers looking to enhance their network capabilities.
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