Installing Modems

Figure 2-6 LightStream 2020 Power-up Sequence

Turn on

LS2020 power

Green LED on power

supply lights up

Blowers start running

TCS powers up; LEDs on

each card light up

Switch cards arbitrate

~5 seconds

to select master

TCS slaves enable power on cards; VCC LEDs light up to indicate local power on each card

POST executes;

yellow FLT LED lights up; green RDY LEDs blink on each card while POST runs

Yellow FLT LED goes out; green RDY LED lights up

Switch card master

runs shell;

NP boots itself

Yes POST No passes ?

Yellow FLT LED lights up; green RDY LED goes out

H3692

Installing Modems

You should install a modem for each switch card in the LS2020 chassis. In the event that an operational problem causes a node to be isolated from the rest of the network, the modem may be the only means available for communicating with that node.

The modem connects to the modem port on the modem/console assembly bulkhead at the back of the LS2020 chassis, using the modem cable described in the LightStream 2020 Site Planning and Cabling Guide.

Hardware Installation 2-13

Page 13
Image 13
Cisco Systems manual Installing Modems, LightStream 2020 Power-up Sequence

2020 specifications

Cisco Systems, a global leader in networking and cybersecurity solutions, experienced a transformative year in 2020, marked by its commitment to innovation and adaptation in the face of unprecedented global challenges. As the COVID-19 pandemic reshaped the way businesses operated, Cisco responded by enhancing its offerings and focusing on remote work solutions, robust security measures, and the expansion of its cloud capabilities.

One of the main features of Cisco's 2020 portfolio was the enhancement of its Webex platform. With remote work becoming the norm, Cisco Webex proved invaluable for businesses and educational institutions, providing a comprehensive suite of tools for video conferencing, online collaboration, and virtual events. The platform saw significant upgrades, including enhanced security features and improvements in user experience, ensuring seamless communication in a distributed work environment.

In the realm of cybersecurity, Cisco reinforced its dedication with the launch of several new security solutions. The Cisco SecureX platform was introduced as a cloud-native security platform that integrated the company's extensive security portfolio, allowing organizations to have a unified view of their security postures. This move highlighted Cisco's focus on simplifying security management and improving incident response times, recognizing the growing need for comprehensive cybersecurity as remote work became prevalent.

Furthermore, 2020 saw advancements in Cisco's cloud strategy. The company focused on multi-cloud environments, allowing customers to manage their applications seamlessly across various platforms. The integration of technologies such as Application Centric Infrastructure (ACI) and Cisco Intersight provided improved automation, visibility, and control over network resources, essential for businesses navigating hybrid cloud setups.

Cisco also placed a strong emphasis on digital transformation, empowering organizations to transition to a more agile and responsive IT infrastructure. The company introduced innovative solutions to support enterprises in their journeys toward digital transformation, leveraging technologies such as artificial intelligence and machine learning to enhance network performance and operational efficiency.

In addition to its focus on technology and innovation, Cisco was recognized for its commitment to corporate social responsibility. The company actively engaged in initiatives aimed at bridging the digital divide, providing resources and support to underserved communities to promote access to technology and education.

Overall, 2020 was a pivotal year for Cisco Systems, characterized by resilience, innovation, and a profound understanding of the evolving needs of businesses worldwide. Through its comprehensive portfolio of solutions, Cisco not only adapted to the changing landscape but also paved the way for a more connected and secure future.