Appendix C. Port Pinouts

Appendix C. Port Pinouts
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This Appendix contains port pinout information for the following ports:

PS/2 Keyboard Port

The SGI 1100 server uses a standard PS/2 keyboard port.

Figure C-1 shows the PS/2 keyboard port.

Figure C-1. Keyboard Port Pinout

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

Table C-1. Keyboard Port Pinout

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

PS/2 Mouse Port

The SGI 1100 server uses a standard PS/2 mouse port.

Figure C-2 shows the PS/2 mouse port.

Figure C-2. Mouse Port Pinout

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

Table C-2. Mouse Port Pinout

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

VGA Port (DB15 HD)

The SGI 1100 server comes with a DB15 HD video port.

Figure C-3 shows the DB15 HD video port.

Figure C-3. DB15 HD Port Pinout

Table C-3 shows the cable pinout assignments for the DB15 HD video port.

Table C-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 SGI 1100 server has two PC-compatible serial ports. The serial port supports data rates from 300 bits per second (bps) to 115.2 Kbps.

Figure C-4 shows the serial port.

Figure C-4. Serial Port Pinout

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

Table C-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

USB Ports

The SGI 1100 server has two 4-pin USB ports.

Figure C-5 shows the USB port.

Figure C-5. USB Port Pinout

Table C-5 shows the cable pinout assignments for the USB ports.

Table C-5. USB Port Pinout

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

Ethernet Ports (RJ45)

The SGI 1100 server has two RJ45 ports for 10-Base-T or 100-Base-TX twisted-pair Ethernet. The ports autoselect the speed (10 Mbps or 100 Mbps) and type (half duplex or full duplex) at bootup, based on what they are connected to.

Figure C-6 shows the Ethernet port.

Figure C-6. Ethernet Port Pinout

Table C-6 shows the cable pinout assignments for the Ethernet port.

Table C-6. Ethernet Port Pinout

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

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