Powering Up and Stacking the SEHI

4.5POWERING UP AND STACKING THE SEHI

The following section details the procedures that must be followed to power up and interconnect stacked hubs.

Failure to follow this procedure may result in damage to the

!equipment.

CAUTION

If you are using an intelligent hub (SEHI) to manage the stack,

!you must locate the SEHI at the bottom of the stack.

CAUTION

The SEHI must be completely powered up and initialized before powering up and interconnecting the rest of the stack.

NOTE

The SEH and the SEHI have universal power supplies that allow connection to power sources from 100 Vac to 125 Vac @ 4.0 A or 200 Vac to 250 Vac @ 2.0 A, 50/60 Hz.

1.Power up the SEHI by plugging the power cord into the back panel of the SEHI and plugging the other end into a grounded receptacle.

NOTE

Locate the SEHI at the bottom of the stack.

For management purposes, stacked hubs are always numbered from 1 to 5 starting at the bottom.

2.Verify that the PWR LED is on, indicating that the SEHI is receiving power. After the SEHI runs a self test and completes the boot process successfully, the CPU LED blinks green indicating normal operation. If the LED remains red, the processor is faulty; contact Cabletron Systems Technical Support. Do not proceed with the following steps until the CPU LED is a steady blinking green.

Do NOT power up or interconnect any other hubs in the stack

!until the SEHI has successfully completed the boot process.

CAUTION

SEHI100TX User’s Guide

4-7

Page 32 Page 34
Page 33
Image 33
Cabletron Systems SEHI100TX-22 manual Powering UP and Stacking the Sehi
Page 32 Page 34

SEHI100TX-22 specifications

Cabletron Systems SEHI100TX-22 is a high-performance network interface card that has been designed for reliable data transfer in various networking environments. Ideal for both enterprise and small business applications, the SEHI100TX-22 delivers exceptional performance at a competitive price point.

One of the standout features of the SEHI100TX-22 is its support for 100Base-TX Ethernet standards, which enables high-speed data transmission at rates of up to 100 Mbps. This high throughput capacity makes it an excellent choice for organizations that require swift and efficient data handling, particularly in environments with heavy network traffic.

The card is equipped with two RJ-45 connectors, allowing it to support dual-port configurations. This dual-port setup enhances networking capabilities by enabling fault tolerance and load balancing, ensuring that the network remains operational even in the event of a failure. Moreover, it supports full-duplex operation, allowing for simultaneous bi-directional data transmission, further improving overall network efficiency and performance.

Another significant advantage of the SEHI100TX-22 is its compatibility with a wide range of operating systems and platforms, including Windows, Linux, and various UNIX variants. This versatility ensures that it can be seamlessly integrated into existing network infrastructures without the need for extensive configuration or modification.

In terms of installation and maintenance, the SEHI100TX-22 is user-friendly, thanks to its Plug and Play capability. This feature allows for easy installation; users can simply insert the card into an available PCI slot, and the operating system will automatically recognize and configure the device, minimizing downtime and simplifying the setup process.

Additionally, the SEHI100TX-22 incorporates advanced technologies like Auto-Negotiation, which automatically detects the speed and duplex capabilities of the connected device, thus optimizing the network performance. The card also features various onboard diagnostic LEDs, providing real-time feedback on connection status and data activity, which aids in troubleshooting and performance monitoring.

In summary, the Cabletron Systems SEHI100TX-22 offers a robust set of features that cater to the demands of modern network environments. With its high-speed capabilities, dual-port support, compatibility across multiple operating systems, and user-friendly installation process, it remains a solid choice for organizations looking to enhance their networking performance and reliability.
Top Page Image Contents