Cabletron Systems 24, STHI-44, STH-22, 42 manual Adding the STH to a Stack

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Adding the STH to a Stack

3.2.2Adding the STH to a Stack

STH hubs are star-wired to the intelligent hub. To add STH hubs to a stack, refer to Figure 3-1 and perform the following steps:

1.Attach an STH HubSTACK Interconnect cable to the "STACK" port on the rear panel of an STH.

2.Attach the other end of the cable to one of the numbered STACK ports on the back panel of the intelligent hub.

The port’s number determines the relative position of the STH hub in the network’s ring sequence and is used by the intelligent hub’s management system to identify the STH to the user.

3.Repeat steps 1 and 2 to attach up to four STH hubs in the stack.

STH-24TOKEN RING HUB with LANVIEW®

SN

RESERVED STACK

STH-24TOKEN RING HUB with LANVIEW®

SN

RESERVED STACK

STH-24TOKEN RING HUB with LANVIEW®

SN

RESERVED STACK

STH-24TOKEN RING HUB with LANVIEW®

SN

RESERVED STACK

MicroMMAC-24TTOKEN RING HUB WITH LANVIEW®

STACK 1

STACK 2

STACK 3

STACK 4

 

 

 

 

 

 

 

 

 

 

 

 

Figure 3-1. Stacking the STH

To disconnect an STH hub from the stack, simply unplug its HubSTACK Interconnect cable from the intelligent hub.

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Contents Stackable Token Ring HUB USER’S Guide Page DOC Notice FCC NoticeCabletron Software Program License Cabletron SYSTEMS, INC Program License AgreementExclusion of Warranty Disclaimer of Liability United States Government Restricted Rights Contents Troubleshooting InstallationUsing This Manual IntroductionSTH Overview HubSTACK STH OverviewLanview LEDs Lobe Port and Multiple Ring Out Port ConfigurationsRing Speed Fault Protection Lanview LEDsActive Circuitry Automatic Beacon Recovery ProcessDaughter Board Upgrade Kit Automatic Beacon Recovery ProcessNo Connection Redundancy Related ManualsRelated Manuals Improved Protection from BeaconingDAISY-CHAIN MAU Configuration Getting Help Getting HelpCrosstalk Requirements & SpecificationsGeneral Considerations Maximum Number of Stations on a RingTemperature Installation RecommendationsGeneral Considerations UTP Cable Categories Cable SpecificationsUTP Cabling Specifications Cable SpecificationsNext UTP Cable CategoriesSTP Cabling Specifications UTP Lobe LengthsUTP Lobe Lengths STP Cable Categories STP Cable CategoriesSTP Lobe Lengths TCU Specifications TCU SpecificationsOperating Specifications Operating SpecificationsRing Speed Power Supply Requirements Ring SequenceRing Sequence Physical SafetyEnvironmental Requirements Environmental RequirementsRack Mount or Wall Mount Hardware InstallationInstalling the STH Unpacking the STHAdding the STH to a Stack Adding the STH to a StackAttaching the Strain Relief Bracket Attaching the Strain Relief BracketRack-Mounting the STH Wall-Mounting the STH Wall-Mounting the STHWall-Mounting the STH Free-Standing Installation Free-Standing InstallationConnecting the STH to the Power Source Connecting the STH to the Power SourceAttaching Network Cabling to TCU Ports Finishing the Installation Finishing the InstallationTroubleshooting Lanview LED SignalsTrouble Resolution Ring Speed Fault Trouble ResolutionLoss Of Power Failure to Link on Enabled Port

42, 24, STHI-44, STH-22 specifications

Cabletron Systems was a pioneer in networking technology, and its STH series, particularly the STH-22 and STHI-44, 24, and 42 models, stand out in the history of networking equipment. These devices were designed for high-performance network management and offered a multitude of features that helped organizations manage their networking resources efficiently.

The STH-22 was a compact and efficient network switch, primarily developed to serve small to medium-sized businesses. One of its main features was its ability to support multiple user connections while offering low latency and high throughput. The STH-22 utilized advanced packet-switching technology to ensure data could move rapidly across the network, enhancing overall communication and productivity.

On the other hand, the STHI-44 model addressed the needs of larger enterprises. It featured advanced routing protocols and could handle a greater number of simultaneous connections, making it ideal for environments with high data traffic. The STHI-44 also incorporated redundancy features to minimize downtime, a vital requirement for businesses that relied heavily on continuous network availability.

The STH-24 and STH-42 models focused on versatility and scalability, catering to a broad range of networking needs. Both models provided extensive support for various networking protocols and featured robust hardware for enhanced durability. The STH-24 was designed for offices requiring mid-range capabilities, while the STH-42 targeted enterprises with more demanding networking requirements.

All STH series devices were built with ease of management in mind. They included user-friendly interfaces that allowed IT personnel to monitor traffic, configure network settings, and troubleshoot issues in real-time. Additionally, the devices supported SNMP (Simple Network Management Protocol) for seamless integration into existing network management systems.

Another defining characteristic of the Cabletron STH series was its commitment to security. These devices came equipped with features that permitted administrators to set access controls and monitor network activity, thereby safeguarding against unauthorized access and potential threats.

In summary, Cabletron Systems' STH-22, STHI-44, STH-24, and STH-42 models represent a significant advancement in networking technology. With their diverse features, high-performance capabilities, and user-centric design, they have served a critical role in optimizing network resources, ensuring businesses were equipped to handle increasing connectivity demands.