Appendix A. Connector pin assignments

Appendix A. Connector pin assignments

The following figures show the pin assignments for various system board connectors.

Monitor connector

51

10 6

15 11

Figure

18. Monitor port connector pin assignments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

 

Signal

 

 

 

I/O

 

Pin

Signal

 

I/O

 

 

 

 

 

 

 

 

 

 

 

 

1

 

Red

 

 

 

O

 

2

Green

 

O

 

 

 

 

 

 

 

 

 

 

 

3

 

Blue

 

 

 

O

 

4

Monitor ID 2 - Not

I

 

 

 

 

 

 

 

 

 

used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

Ground

 

 

 

NA

 

6

Red

ground

NA

 

 

 

 

 

 

 

 

 

 

 

7

 

Green

ground

 

NA

 

8

Blue

ground

NA

 

 

 

 

 

 

 

 

 

 

 

9

 

+5 V,

used

by

DDC2BNA

 

10

Ground

 

NA

 

 

 

 

 

 

 

 

 

 

 

 

11

 

Monitor

ID

0

-

Not I

 

12

DDC2B

serial data

I/O

 

 

used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

Horizontal

sync

O

 

14

Vertical sync

O

 

 

 

 

 

 

 

 

 

 

 

 

15

 

DDC2B

clock

 

 

I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory connectors

85

 

 

168

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

184

Figure 19

(Page 1 of

3). System Memory Connector Pin Assignments

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

x64

Non-Parity

 

x72

ECC

Pin

x64

Non-Parity

x72

ECC

 

 

 

 

 

 

 

 

 

 

 

1

VSS

 

 

VSS

 

85

VSS

 

VSS

 

 

 

 

 

 

 

 

 

 

2

DQ0

 

 

DQ0

 

86

DQ32

DQ32

 

 

 

 

 

 

 

3

DQ1

 

DQ1

87

DQ33

DQ33

 

 

 

 

 

 

 

4

DQ2

 

DQ2

88

DQ34

DQ34

 

 

 

 

 

 

 

 

 

5

DQ3

 

DQ3

89

DQ35

 

DQ35

 

 

 

 

 

 

 

 

 

 

 

 

6

VCC

 

 

VCC

 

90

VCC

 

VCC

 

 

 

 

 

 

 

 

7

DQ4

 

DQ4

91

DQ36

DQ36

 

 

 

 

 

 

 

 

 

8

DQ5

 

 

DQ5

 

92

DQ37

DQ37

 

 

 

 

 

 

 

9

DQ6

 

DQ6

93

DQ38

DQ38

 

 

 

 

 

 

 

10

DQ7

 

DQ7

94

DQ39

DQ39

 

 

 

 

 

 

 

 

 

11

DQ8

 

DQ8

95

DQ40

 

DQ40

 

 

 

 

 

 

 

 

 

 

 

 

12

VSS

 

 

VSS

 

96

VSS

 

VSS

 

 

 

 

 

 

 

 

 

 

 

 

Copyright IBM Corp. September 1999

25

Page 33
Image 33
IBM 6288, 6268, 6278 manual Appendix A. Connector pin assignments, Monitor connector, Memory connectors

6278, 6268, 6288 specifications

The IBM 6278, 6288, and 6268 are part of IBM's extensive lineup of mid-range computers, specifically tailored for business environments in the late 1980s and early 1990s. These systems were designed to handle substantial data processing tasks, facilitating efficient business operations with robust performance and reliability.

The IBM 6278 was notable for its high-performance capabilities, making it suitable for a variety of applications ranging from transaction processing to complex computations. One of the main features of the 6278 was its multiprocessing capability, which allowed it to run multiple tasks concurrently. This was achieved through a combination of advanced hardware and software that optimized performance and resource allocation.

Similarly, the IBM 6288 was recognized for its versatility and scalability. This system incorporated enhanced memory management and was capable of handling larger workloads than its predecessors. The 6288 was designed with user-friendly interfaces and supported various input/output devices, making it easier for organizations to integrate into existing IT infrastructures. Additionally, it provided improved connectivity options, essential for modern networking needs at the time.

The IBM 6268, on the other hand, offered a balance between cost and performance, appealing to smaller businesses or those with less intensive data processing requirements. Despite being less powerful than the 6278 and 6288, the 6268 still managed to include essential features such as reliable data storage, effective processing speed, and compatibility with IBM's extensive software ecosystem.

All three models utilized IBM's proprietary operating systems, which were well-known for their robustness and security features. They were built with technologies such as error detection and correction, ensuring the integrity of data processing tasks. The architecture of these systems also allowed for easy upgrades, enabling businesses to expand their capabilities without a complete overhaul of their IT infrastructure.

In summary, the IBM 6278, 6288, and 6268 represented a significant advancement in mid-range computing technology during their era. Their main features encompassed multiprocessing, scalability, and user-friendly interfaces, making them valuable assets for businesses seeking reliable and efficient computing solutions. These systems laid the groundwork for future innovations in business computing, and despite their age, they remain a significant part of IBM's legacy in the computing industry.