IBM 100/10 - Manual (Page 29)

19 Chapter 2 Installation
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