Sun Enterprise 250 Server Owner's Guide

Appendix A Connector Pinouts

This appendix gives you reference information about the pins, signals, and ports built into the Sun Enterprise 250 server.

Topics covered in this appendix include:

"Reference for the Serial Port A and B Connectors"

"Reference for the Parallel Connector"

"Reference for the SCSI Connector"

"Reference for the Keyboard/Mouse Connector"

"Reference for the Twisted-Pair Ethernet (TPE) Connector"

"Reference for the Media Independent Interface (MII) Ethernet Connector"

"Reference for the 13W3 Video Connector"

"Reference for the RSC/SSP Serial Port Connector"

"Reference for the RSC/SSP Twisted-Pair Ethernet (TPE) Connector"

Reference for the Serial Port A and B Connectors

Both serial ports conform to RS-423/RS-232 specifications.

Figure A-1

Table A-1 Serial Port Signals


Pin Number	Function	I/O	Signal Description
1	none	none	N.C. [N.C. means "No Connection."]
2	TXD	O	Transmit Data
3	RXD	I	Receive Data
4	RTS	O	Ready To Send
5	CTS	I	Clear To Send
6	DSR	I	Data Set Ready
7	GND		Signal Ground
8	DCD	I	Data Carrier Detect
9	none	none	N.C.
10	none	none	N.C.
11	none	none	N.C.
12	none	none	N.C.
13	none	none	N.C.
14	none	none	N.C.
15	TRXC	I	Transmit Clock
16	none	none	N.C.
17	RXC	I	Receive Clock
18	none	none	N.C.
19	none	none	N.C.
20	DTR	O	Data Terminal Ready
21	none	none	N.C.
22	none	none	N.C.
23	none	none	N.C.
24	TXC	O	Transmit Clock
25	none	none	N.C.

Reference for the Parallel Connector

Figure A-2

Signal names ending in "L" indicate that the signal is active low.

Table A-2 Parallel Port Signals


Pin	Description	Pin	Description
1	STROBE_L	14	AUTO_FEED_L
2	DAT0	15	ERROR_L
3	DAT1	16	INIT_L
4	DAT2	17	SLIN_L
5	DAT3	18	GND
6	DAT4	19	GND
7	DAT5	20	GND
8	DAT6	21	GND
9	DAT7	22	GND
10	ACK_L	23	GND
11	BUSY	24	GND
12	PERROR	25	GND
13	SELECT_L

Reference for the SCSI Connector

Figure A-3

Signal names ending in "L" indicate that the signal is active low.

Table A-3 SCSI Connector Signals


Pin	Signal	Pin	Signal
1	SCSI_GND	35	SCSI_CONN_DAT<12>
2	SCSI_GND	36	SCSI_CONN_DAT<13>
3	SCSI_GND	37	SCSI_CONN_DAT<14>
4	SCSI_GND	38	SCSI_CONN_DAT<15>
5	SCSI_GND	39	SCSI_CONN_PAR<1>
6	SCSI_GND	40	SCSI_CONN_DAT<0>
7	SCSI_GND	41	SCSI_CONN_DAT<1>
8	SCSI_GND	42	SCSI_CONN_DAT<2>
9	SCSI_GND	43	SCSI_CONN_DAT<3>
10	SCSI_GND	44	SCSI_CONN_DAT<4>
11	SCSI_GND	45	SCSI_CONN_DAT<5>
12	SCSI_GND	46	SCSI_CONN_DAT<6>
13	SCSI_GND	47	SCSI_CONN_DAT<7>
14	SCSI_GND	48	SCSI_CONN_PAR<0>
15	SCSI-GND	49	SCSI_GND
16	SCSI_GND	50	SCSI_TERMDIS_L<0>
17	SCSI_CONN_TERMPWR	51	SCSI_CONN_TERMPWR
18	SCSI_CONN_TERMPWR	52	SCSI_CONN_TERMPWR
19	N.C. [N.C. means "No Connection."]	53	N.C.
20	SCSI_GND	54	SCSI_CONN_GND
21	SCSI_GND	55	SCSI_CONN_ATN
22	SCSI_GND	56	SCSI_GND
23	SCSI_GND	57	SCSI_CONN_BSY_L
24	SCSI_GND	58	SCSI_CONN_ACK_L
25	SCSI_GND	59	SCSI_CONN_RST_L
26	SCSI_GND	60	SCSI_CONN_MSG_L
27	SCSI_GND	61	SCSI_CONN_SEL_L
28	SCSI_GND	62	SCSI_CONN_CD_L
29	SCSI_GND	63	SCSI_CONN_REQ_L
30	SCSI_GND	64	SCSI_CONN_IO_L
31	SCSI_GND	65	SCSI_CONN_DAT<8>
32	SCSI_GND	66	SCSI_CONN_DAT<9>
33	SCSI_GND	67	SCSI_CONN_DAT<10>
34	SCSI_GND	68	SCSI_CONN_DAT<11>

Reference for the Keyboard/Mouse Connector

Figure A-4

Signal names ending in "L" indicate that the signal is active low.

Table A-4 Keyboard/Mouse Connector Signals


Pin	Description	Pin	Description
1	GND	5	KYBD_OUT_L
2	GND	6	KYBD_IN_L
3	+5 VDC	7	POWERON_L
4	MOUSE_IN_L	8	+5 VDC

Reference for the Twisted-Pair Ethernet (TPE) Connector

Figure A-5

Table A-5 TPE Connector Signals


Pin	Description	Pin	Description
1	Transmit Data +	5	Common Mode Termination
2	Transmit Data -	6	Receive Data -
3	Receive Data +	7	Common Mode Termination
4	Common Mode Termination	8	Common Mode Termination

Reference for the Media Independent Interface (MII) Ethernet Connector

Figure A-6

Table A-6 MII Connector Signals


Pin	Function	Pin	Function
1	+5 VDC	21	+5 VDC
2	MDIO	22	GND
3	MDC	23	GND
4	RXD<3>	24	GND
5	RXD<2>	25	GND
6	RXD<1>	26	GND
7	RXD<0>	27	GND
8	RX_DV	28	GND
9	RX_CLK	29	GND
10	RX_ER	30	GND
11	TX_ER	31	GND
12	TX_CLK	32	GND
13	TX_EN	33	GND
14	TXD<0>	34	GND
15	TXD<1>	35	GND
16	TXD<2>	36	GND
17	TXD<3>	37	GND
18	COL	38	GND
19	CRS	39	GND
20	+5 VDC	40	+5 VDC

Note -

The +5V supply is fuse-protected with a fuse that automatically resets.

Reference for the 13W3 Video Connector

The optional PGX Graphics Frame Buffer is a PCI-based frame buffer card with a 13W3 video connector.

Figure A-7

Table A-7 13W3 Connector Signals


Pin	Function	I/O	Level
A1	Red	O	Analog
A2	Green	O	Analog
A3	Blue	O	Analog
1	Serial Read		TTL
2	Vert Sync	O	TTL
3	Sense <0>	I	TTL
4	GND		Ground
5	Comp Sync	O	TTL
6	Horiz Sync	O	TTL
7	Serial Write		TTL
8	Sense <1>	I	TTL
9	Sense <2>	I	TTL
10	GND		Ground

Reference for the RSC/SSP Serial Port Connector

Figure A-8

Table A-8 RSC/SSP Serial Port Signals


Pin Number	Function	I/O	Signal Description
1	none	none	N.C. [N.C. means "No Connection."]
2	TXD	O	Transmit Data
3	RXD	I	Receive Data
4	RTS	O	Ready To Send
5	CTS	I	Clear To Send
6	DSR	I	Data Set Ready
7	GND		Signal Ground
8	DCD	I	Data Carrier Detect
9	none	none	N.C.
10	none	none	N.C.
11	none	none	N.C.
12	none	none	N.C.
13	none	none	N.C.
14	none	none	N.C.
15	none	none	N.C.
16	none	none	N.C.
17	none	none	N.C.
18	none	none	N.C.
19	none	none	N.C.
20	DTR	O	Data Terminal Ready
21	none	none	N.C.
22	none	none	N.C.
23	none	none	N.C.
24	none	none	N.C.
25	none	none	N.C.

Reference for the RSC/SSP Twisted-Pair Ethernet (TPE) Connector

Figure A-9

Table A-9 TSC/SSP TPE Connector Signals


Pin	Description	Pin	Description
1	Transmit Data +	5	Common Mode Termination
2	Transmit Data -	6	Receive Data -
3	Receive Data +	7	Common Mode Termination
4	Common Mode Termination	8	Common Mode Termination