Electrical safety

CAUTION:

Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the server/workstation covers, unless instructed otherwise in the installation and configuration procedures.

Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.

Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

vFind the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

vDo not work alone under hazardous conditions or near equipment that has hazardous voltages.

vDisconnect all power before:

–Performing a mechanical inspection

–Working near power supplies

–Removing or installing main units

vBefore you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.

vIf you need to work on a machine that has exposed electrical circuits, observe the following precautions:

–Ensure that another person, familiar with the power-off controls, is near you.

Remember: Another person must be there to switch off the power, if necessary.

–Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.

Remember: There must be a complete circuit to cause electrical shock. By observing the above rule, you may prevent a current from passing through your body.

–When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.

–Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.

208Hardware Maintenance Manual

6339, 6337, 6342, 6341, 6336 specifications

IBM's 6348, 6346, 6347, 2254, and 2257 models are part of the company's extensive portfolio of enterprise-level computing solutions, designed to enhance performance and efficiency for businesses.

The IBM 6348 and 6346 are terminals that cater to large-scale enterprises, providing a reliable interface for interaction with mainframe systems. The 6348 model offers a versatile display with options for wide and standard formats, making it ideal for applications that require enhanced visibility. With its durable build, the 6348 is well-suited for high-demand environments. In contrast, the 6346 is designed for more specific tasks, featuring a streamlined interface that promotes ease of use. Both models leverage IBM's longstanding expertise in robust technology, ensuring low latency and high throughput.

The IBM 6347 terminal takes functionality a step further by incorporating advanced display technologies. It supports various connectivity options, allowing it to integrate seamlessly into existing networks. Its user-friendly interface and customizable features mean that organizations can tailor the device to meet specific operational needs. The 6347 also emphasizes security, with encryption features that protect sensitive data transmitted over the network.

Turning to the IBM 2254 and 2257, these models represent IBM's commitment to providing flexible and scalable solutions for businesses. The 2254 is engineered as a technical workstation with a focus on graphics performance, making it an excellent choice for engineering and design applications. By utilizing cutting-edge graphics technologies, it facilitates complex visual tasks and improves productivity in creative fields.

The IBM 2257, on the other hand, is known for its powerful processing capabilities, targeting users requiring intensive computational tasks. With advanced CPU options and extensive memory support, the 2257 is ideal for data analysis, software development, and other resource-heavy operations. Both models leverage IBM's proprietary technologies designed to enhance system reliability and user experience.

Collectively, the IBM 6348, 6346, 6347, 2254, and 2257 models demonstrate IBM's ability to innovate while remaining focused on the needs of enterprises. With a strategic combination of durability, advanced features, and secure communications, these devices ensure that organizations can operate effectively in today’s fast-paced business environment. The integration of these models into enterprise workflows can enhance productivity, streamline processes, and facilitate secure communication, making them valuable assets for any organization.

IBM 6337, 6348, 6342, 6339, 6346, 6341, 2257, 2256, 2254, 6347, 6336 manual Electrical safety

Models: 6339 6337 6342 6341 6336 2256 2257 2254 6347 6346 6348