Chapter 2 Alarm Troubleshooting

Alarm Procedures

Procedure: Clear the FAN Alarm

Step 1 Verify whether the air filter needs replacement. Complete the “Inspect, Clean, and Replace the Reusable Air Filter” procedure on page 3-3.

Step 2 If the filter is clean, complete the “Remove and Reinsert Fan-Tray Assembly” procedure on page 2-130.

Note The fan-tray assembly should run immediately when correctly inserted.

Step 3 If the fan does not run or the alarm persists, complete the “Replace the Fan-Tray Assembly” procedure on page 3-1.

Step 4 If the replacement fan-tray assembly does not operate correctly, log onto http://www.cisco.com/tac for more information or call TAC to report a service-affecting problem (1-800-553-2447).

2.6.63FANDEGRADE

Major (MJ), Non-Service Affecting (NSA)

The Partial Fan Failure Speed Control Degradation (FANDEGRADE) alarm occurs if fan speed for one of the fans in the fan-tray assembly falls under 500 RPM when read by a tachometry counter.

Procedure: Clear the FANDEGRADE Alarm

Step 1 Complete the “Clear the FAN Alarm” procedure on page 2-60.

Step 2 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).

2.6.64 FE-AIS

Not Alarmed (NA), Non-Service Affecting (NSA)

The Far-End AIS condition occurs when an AIS has occurred at the far-end node. FE-AIS usually occurs in conjunction with an LOS (OC-N) alarm (see page 2-84)downstream.

Procedure: Clear the FE-AIS Condition

Step 1 Complete the “Clear the AIS Condition” procedure on page 2-16.

Step 2 If the condition does not clear, log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447).

Cisco ONS 15327 Troubleshooting Guide, R3.4

2-60

March 2004

 

 

Page 166
Image 166
Cisco Systems ONS 15327 manual Fe-Ais, Procedure Clear the FAN Alarm, Procedure Clear the Fandegrade Alarm

ONS 15327 specifications

Cisco Systems ONS 15327 is a high-performance optical networking solution tailored for service providers and enterprises looking to enhance their optical communication infrastructure. This versatile platform is recognized for its robust performance, scalability, and flexibility, making it suitable for a wide array of applications ranging from broadband access to metropolitan area networking.

One of the standout features of the ONS 15327 is its ability to handle multiple data types over a single platform. It supports a rich array of protocols, including Ethernet and SONET/SDH, allowing service providers to deliver a diverse portfolio of services to their customers. This multiservice capability simplifies the network architecture, reducing operational complexity and costs.

The ONS 15327 is designed with a modular architecture, which enables operators to customize and scale their network as demand grows. It supports a variety of card options for different media types, wavelengths, and capacity requirements. This modularity not only facilitates straightforward upgrades but also allows for efficient network management.

In terms of technology, the ONS 15327 leverages dense wavelength division multiplexing (DWDM) capabilities to maximize the utilization of available fiber bandwidth. This allows for an impressive increase in transmission capacity without the need for additional fiber installations, making it a cost-effective solution for expanding networks.

Another significant characteristic of the Cisco ONS 15327 is its advanced performance monitoring and management features. Built-in diagnostic tools provide real-time visibility into network performance, enabling prompt identification and troubleshooting of potential issues. This proactive approach to network management enhances service reliability and customer satisfaction.

Security is also paramount in the ONS 15327. The platform integrates various security features and protocols to protect the data traversing the network, ensuring compliance with industry standards and safeguarding sensitive information.

Furthermore, the equipment is designed for easy integration into existing infrastructures. Its compatibility with Cisco’s broader networking solutions allows for seamless interconnection with routers, switches, and other devices, facilitating comprehensive network solutions.

In conclusion, Cisco Systems ONS 15327 stands out as a powerful optical networking platform that combines versatility, scalability, and advanced management features. Its ability to support various protocols and harness optical technologies makes it an essential tool for organizations aiming to optimize their telecommunications infrastructure while minimizing costs and complexity.