Appendix A. Connector Pinouts

Appendix A. Connector Pinouts
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This Appendix contains port pinout information for the following Silicon Graphics 230 Visual Workstation ports:

Keyboard Port

The Silicon Graphics 230 Visual Workstation uses a standard PS/2 keyboard port, as shown in Figure A-1.

Figure A-1. Keyboard Port Pinout

Table A-1 shows the cable pinout assignments for the keyboard port.

Table A-1. Keyboard Port Pinout

Pin	Assignment
1	Keyboard Data
2	(Reserved)
3	Ground
4	Keyboard Power (+5V)
5	Keyboard Clock
6	(Reserved)

Mouse Port

The Silicon Graphics 230 Visual Workstation uses a standard PS/2 mouse port, as shown in Figure A-2.

Figure A-2. Mouse Port Pinout

Table A-2 shows the cable pinout assignments for the mouse port.

Table A-2. Mouse Port Pinout

Pin	Assignment
1	Mouse Data
2	(Reserved)
3	Ground
4	Mouse Power (+5V)
5	Mouse Clock
6	(Reserved)

Video-Out Ports

The Silicon Graphics 230 Visual Workstation comes with an DB15 HD video port, an S-Video port and a DVI-D port.

DB15 HD Port

Figure A-3 shows the DB15 HD port.

Figure A-3. DB15 HD Port Pinout

Table A-3 shows the port pinout assignments for the DB15 HD port.

Table A-3. DB15 HD Port Pinout

Pin	Assignment	Pin	Assignment
1	Red	9	No Connect
2	Green	10	Ground
3	Blue	11	Ground
4	Ground	12	IIC Data
5	Ground	13	Horizontal Sync
6	Red Return	14	Vertical Sync
7	Green Return	15	IIC Clock
8	Blue Return

Serial Ports

The Silicon Graphics 230 Visual Workstation serial ports use a standard PC-compatible pinout. The serial port supports data rates from 300 bits per second (bps) to 115.2 Kbps. Figure A-4 shows the serial port.

Figure A-4. Serial Port Pinout

Table A-4 shows cable pinout assignments for the serial ports.

Table A-4. Serial Port Pinout

Pin	Assignment	Description
1	DCD	Data Carrier Detect
2	RD	Receive Data
3	TD	Transmit Data
4	DTR	Data Terminal Ready
5	SG	Signal Ground
6	DSR	Data Set Ready
7	RTS	Request to Send
8	CTS	Clear to Send
9	RI	Ring Indicator

Parallel Port

The Silicon Graphics 230 Visual Workstation uses a standard DB25 1284 EPC parallel port, as shown in Figure A-5.

Figure A-5. Parallel Port Pinout

Table A-5 shows the cable pinout assignments for the parallel port.

Table A-5. Parallel Port Pinout

Pin	Assignment	Pin	Assignment	Pin	Assignment
1	Strobe	10	Ack	19	Ground
2	Data 0	11	Busy	20	Ground
3	Data 1	12	Error	21	Ground
4	Data 2	13	Select	22	Ground
5	Data 3	14	AutoFd	23	Ground
6	Data 4	15	Fault	24	Ground
7	Data 5	16	Init	25	Ground
8	Data 6	17	SelectIn
9	Data 7	18	Ground

USB Ports

The Silicon Graphics 230 Visual Workstation has two 4-pin USB connectors. Figure A-6 shows a USB port.

Figure A-6. USB Port Pinout

Table A-6 shows the cable pinout assignments for the USB

Table A-6. USB Port Pinout

Pin	Assignment	Color	Comment
1	VCC	Red	Cable power
2	-Data	White
3	+Data	Green
4	Ground	Black	Cable ground

Ethernet Port

The Silicon Graphics 230 Visual Workstation has an RJ45 port for 10-Base-T or 100-Base-TX twisted-pair Ethernet. The port autoselects the speed (10 Mbps or 100 Mbps) and type (half duplex or full duplex) at bootup, based on what it is connected to. Figure A-7 shows the Ethernet port.

Figure A-7. Ethernet Port Pinouts

Table A-7 shows the cable pinout assignments for the Ethernet port.

Table A-7. Ethernet Port Pinout

Pin	Assignment
1	Transmit+
2	Transmit–
3	Receive+
4	(Reserved)
5	(Reserved)
6	Receive–
7	(Reserved)
8	(Reserved)

Audio Ports

The Silicon Graphics 230 Visual Workstation uses a 3.5 mm mini jack stereo microphone port, an analog line-level audio input port and an analog line-level audio output port.

Table A-8 shows the port pinout information for the mic-in, line-in, and line-Out ports.

Table A-8. Mic-in, Line-in, Line-Out Port Pinouts

Connector	Tip	Ring	Sleeve
Mic-in	L	R	Ground
Line-in	L	R	Ground
Line-out	L	R	Ground

Mic-In Port

Figure A-8 shows the mic-In port.

Figure A-8. Mic-In Port Pinout

Line-In and Line-Out Ports

Figure A-9 shows the line level port.

Figure A-9. Line Level Port

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Chapter 4. Setup Utility		Appendix B. Physical Environment Specifications