IBM 100/10, PCM-9575 COM port connector CN19, Audio connector CN4, CD audio input connector CN2

2.17.1 Audio connector (CN4)

The PCM-9575 provides all major audio signals on a 16-pin flat-cable connector, CN4. These audio signals include Microphone in (mono), Line in (stereo), Line out (stereo), and Speaker out (stereo). If you use tradi- tional telephone jack connectors for these audio signals, you will need an adapter cable.

2.17.2 CD audio input connector (CN2)

Any CD-ROM drive can provide analog audio signal output when used as a music CD player. The CN2 on PCM-9575 is a connector to input CD audio signals into the audio controller. The audio cable of your CD-ROM drive will be used to connect to CN2.

2.18 COM port connector (CN19)

The PCM-9575 provides four serial ports (COM1, 3, 4: RS-232; COM2: RS-232/422/485) in one COM port connector. The COM port connector is a 40-pin, dual-inline, male header. It provides connections for serial devices (a mouse, etc.) or a communication network. You can find the pin assignments for the COM port connector in Appendix C.

2.18.1 COM2 RS-232/422/485 setting (JP6)

COM2 can be configured to operate in RS-232, RS-422, or RS-485 mode. This is done via JP6

JP6: COM2 RS-232/422/485 select

PINS	RS-232*	RS-422	RS-485
1-2	Open	Open	Closed
3-4	Open	Closed	Open
5-6	Closed	Open	Open
7-9	Closed	Open	Open
8-10	Closed	Open	Open
9-11	Open	Closed	Closed
10-12	Open	Closed	Closed
13-15	Closed	Open	Open
14-16	Closed	Open	Open
15-17	Open	Closed	Closed
16-18	Open	Closed	Closed

19 Chapter 2 Installation