Notes:

1.Within 2 minutes after power has been connected to the BladeCenter T unit, the management module applies power to the I/O modules.

2.If a power failure occurs, the BladeCenter T unit restarts automatically when power is restored.

3.The blade-server power button turns on or turns off the blade server if local power control has not been disabled through the management module.

4.The blade-server power button turns on the blade server only if the green power light on the blade server is flashing slowly. If the light flashes rapidly, the blade server has not yet synchronized with the management module, and pressing the power button will have no effect. See “Media tray” on page 11 for more information about the controls and indicators on the BladeCenter T unit modules.

See the Installation and User’s Guide for your blade server on the IBM Documentation CD that comes with the blade server for the location of the blade server LEDs.

Shutting down the BladeCenter T unit

You can shut down the BladeCenter T unit by turning off the blade servers and disconnecting the BladeCenter T unit from the power source.

Complete the following steps to shut down the BladeCenter T unit.

1.See your blade server operating-system documentation for the procedure to shut down the operating system in the blade servers; then, shut down each operating system.

2.Press the power-control button on the front of each blade server. Wait until the solid green power LED on the blade server goes to a slow flash indicating that the blade server drives have stopped spinning.

Statement 5:

CAUTION:

The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

1

2

Note: The BladeCenter T Type 8720 and 8730 units do not have a power switch. The units also have more than one connection to power. To remove all electrical current from the unit, make sure that all connections to input power are disconnected at the power input terminals or connectors.

3.If you have a BladeCenter T Type 8720 (dc-power) unit, disconnect the unit from the input power at the dc power distribution panel by switching the circuit

Chapter 1. General information 21

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IBM Type 8720, Type 8730 manual Shutting down the BladeCenter T unit

Type 8730, Type 8720 specifications

The IBM Type 8720 and Type 8730, part of IBM's extensive line of printers, stand out as reliable and technologically advanced devices designed for both small and large-scale industries. These printers, which were introduced in the early 1990s, catered to the evolving needs of businesses by delivering high-quality output combined with versatility and efficiency.

One of the main features of the IBM Type 8720 is its innovative line printer technology. Unlike traditional printers that utilized a single print head, the 8720 employs a unique printing mechanism that utilizes multiple print wires, ensuring faster print speeds and more precise character formations. This multi-wire technology enables the printer to achieve a print speed of up to 1,500 lines per minute, making it ideal for high-volume printing environments.

The IBM Type 8730, on the other hand, builds upon the foundation set by the 8720 by introducing more advanced features aimed at enhancing user experience. Among its key characteristics is its advanced processing capability, which allows for more complex document handling and high-quality graphics outputs. The 8730's capability to support a range of media types, including labels, envelopes, and fanfold paper, further enhances its versatility, enabling businesses to print various documents without needing multiple machines.

Both printers are designed with user-friendly interfaces that simplify operations and maintenance. Their modular design allows for easy upgrades, ensuring that companies can keep pace with changing printing demands and technological advancements. Additionally, their robust build quality guarantees long-lasting performance even in demanding environments.

In terms of connectivity, the IBM Type 8720 and 8730 support a variety of communication protocols, including parallel and serial interfaces, which facilitate easy integration into existing network environments. This connectivity ensures that businesses can seamlessly connect the printers to their mainframes or personal computers, streamlining the printing process.

Overall, the IBM Type 8720 and Type 8730 are exemplary allies for businesses seeking efficient, high-speed printing solutions. With their advanced technologies, extensive features, and reliable performance, these printers have maintained a loyal following and continue to be relevant in the realms of business printing, showcasing IBM's commitment to innovation and quality in the field of printing technology.