IBM 220 manual Keyboard port, Auxiliary-device pointing device port, USB-port connectors

Models: 220

1 148
Download 148 pages 12.73 Kb
Page 75
Image 75
USB-port connectors

USB technology provides up to 12 megabits-per-second (Mbps) speed with a maximum of 127 external devices and a maximum signal distance of five meters (16 ft) per segment.

USB-port connectors

Each USB port has an external connector on the rear of the server for attaching USB- compatible devices.

The following table shows the pin-number assignments for the USB-port connectors on the rear of the server.

Pin

Signal

 

 

1

+5 V dc

 

 

2

-Data

 

 

3

+Data

 

 

4

Ground

 

 

Table 6. USB-port connector pin-number assignments

Keyboard port

There is one keyboard port on the rear of the server.

Note: If you attach a standard (non-USB) keyboard to the keyboard connector, the USB ports and devices will be disabled during the power-on self-test (POST).

The following table shows the pin-number assignments for the keyboard connector on the rear of the server.

65

43

2 1

Pin

I/O

Signal

 

 

 

1

I/O

Data

 

 

 

2

N/A

Reserved

 

 

 

3

N/A

Ground

 

 

 

4

N/A

+5 V dc

 

 

 

5

I/O

Clock

 

 

 

6

N/A

Reserved

 

 

 

Table 7. Keyboard connector pin-number assignments

Auxiliary-device (pointing device) port

The rear of the server has one auxiliary-device port that supports a mouse or other pointing device.

Chapter 5. Installing options 65

Page 75
Image 75
IBM 220 manual Keyboard port, Auxiliary-device pointing device port, USB-port connectors