Preparing to set up your 5074 or 5079 Expansion Unit

Chapter 1. Preparing to set up your 5074 or 5079 Expansion Unit

This chapter explains what you need to do before you set up your 5074 or 5079 Expansion Unit. This includes the following tasks:

1.Unpack your expansion unit (refer to the instructions for unpacking that came with your expansion unit).

2.Plan layouts for your cables.

3.Power down your system unit.

Before you begin the installation process, carefully plan where you will install your new expansion unit. You should consider several factors that include size, security, and environmental factors. Before you set up your new expansion unit, refer to the iSeries Information Center Web site

http://www.ibm.com/eserver/iseries/infocenter

and select Plan for hardware and software

Hardware requirements

If you are installing your new expansion unit directly to your system unit, you should remember these rules:

vYou need to have an available or unused high speed link (HSL) connector.

vYou need to have an unused or available system power control network (SPCN) connector.

Site planning considerations for the 5079

Weight and Size of the 5079

Table 1 shows the weight and dimensions of the 5079 Expansion Unit.

Table 1. 5079 Weight and Size descriptions

Weight (fully configured)	1600 lb (725 kg)

Width	25.5 in (650 mm)

Depth	40 in (1020 mm)

Height	71 in (1800 mm)

The 5079 has a floor loading of 86 lb/ft2 (420 kg/m2). Because of the size and weight of the 5079, you should do the following:

CAUTION:

Overlapping the clearance defined below with adjacent equipment results in a significant increase in the amount of floor loading.

vContact your facility or structural engineer to determine a safe site for your 5079.

vLeave 30 in. (762 mm) of clearance to the front and back of the 5079.

vLeave 5 in. (127 mm) of clearance to the left and right of the 5079.

5078, 5079, 578, 5074 specifications

The IBM 5074, 578, 5079, and 5078 are part of IBM's influential line of midrange computer systems that emerged during the late 1970s and early 1980s. These models were pivotal in the evolution of business computing at a time when companies were increasingly adopting automated systems for data processing tasks.

The IBM 5074, also known as the IBM 5100 Series, was particularly notable for being one of the first portable computers, offering a versatile computing environment for both technical and business applications. It featured an impressive combination of hardware and software capabilities, including a built-in keyboard, a screen, and the ability to run various programming languages. Both APL and BASIC were readily available, making it a popular choice for developers and mathematicians alike.

The 578 model was an advanced variant of the 5074, emphasizing enhanced performance and expanded memory capacity. The 578 integrated more sophisticated I/O capabilities, which included diverse connection options for external devices. This system was geared toward small and medium enterprises requiring robust computing power without the complexities of mainframe management.

The IBM 5079, on the other hand, distinguished itself with its unique multi-user capabilities, allowing for simultaneous access by multiple users. This built-in support for multitasking made it a formidable tool in office environments where collaboration and efficient resource sharing were paramount. Its operating system was designed to optimize performance across various applications, facilitating smoother operations in busy work environments.

Lastly, the IBM 5078 served as a bridge between traditional minicomputers and the growing demand for microcomputing solutions. It included critical innovations in processing speed and data handling capabilities, allowing businesses to better manage their operations. With a focus on reliability and uptime, the 5078 was engineered for critical business functions that demanded robust performance in a pragmatic package.

Together, these models underscored IBM's commitment to innovation and adaptability in the computing landscape of the late 20th century. They set the groundwork for future advancements in personal computing and enterprise systems, influencing generations of technology that followed. Their legacy is a testament to the evolution of computing technology, showcasing concrete advancements in capability, efficiency, and user accessibility.

IBM 578, 5078 manual Preparing to set up your 5074 or 5079 Expansion Unit, Hardware requirements

Models: 5078 5079 578 5074