Chapter 1 General Troubleshooting

Power and LED Tests

1.9 Power and LED Tests

This section provides symptoms and solutions for power supply problems, power consumption, and LED indicators.

1.9.1 Power Supply Problems

Symptom Loss of power or low voltage, resulting in a loss of traffic and causing the LCD clock to reset to the default date and time.

Table 1-41describes the potential cause(s) of the symptom and the solution(s).

Table 1-41 Power Supply Problems

Possible Problem

Solution

 

 

Loss of power or low

The ONS 15327 requires a constant source of DC power to properly

voltage

function. Input power is –48 VDC. Power requirements range from –42 VDC

 

to –57 VDC.

Improperly connected

 

power supply

A newly installed ONS 15327 that is not properly connected to its power

 

supply does not operate. Power problems can be confined to a specific

 

ONS 15327 or can affect several pieces of equipment on the site.

 

Note A loss of power or low voltage can result in a loss of traffic and

 

causes the LCD clock on the ONS 15327 to default to January 1,

 

1970, 00:04:15. To reset the clock, in node view click the

 

Provisioning > General tabs and change the Date and Time fields.

 

See the “Isolate the Cause of Power Supply Problems” procedure on

 

page 1-79.

 

 

Warning When working with live power, always use proper tools and eye protection.

Warning Always use the supplied electrostatic discharge (ESD) wristband when working with a powered ONS 15327. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.

Caution Operations that interrupt power supply or short the power connections to the ONS 15327 are service-affecting.

Cisco ONS 15327 Troubleshooting Guide, R3.4

1-78

April 2003

 

 

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Cisco Systems ONS 15327 manual Power and LED Tests, Power Supply Problems
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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.
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