Appendix B. Connector Pinouts

Appendix B. Connector Pinouts
Prev		Next

This appendix provides pin assignment information for non-proprietary connectors on the components discussed in the following sections:

SGI Onyx 300 Compute Module

Table B-1 lists the non-proprietary connectors that are located on the rear panel of the Onyx 300 compute module (refer to Figure B-1). The third column of the table indicates where you can find the pin assignments for these connectors.

Table B-1. Onyx 300 Compute Module Connectors

Port(s)	Connector	Pin Assignments
Serial ports 1 and 2	DB9	Refer to Figure B-6
L1 console port	DB9	Refer to Figure B-6
Ethernet port	RJ-45	Refer to Figure B-7
External SCSI port	SCSI 68-pin VHDCI	Refer to Figure B-8 and Table B-4
RT interrupt input and output ports	Stereo jack	Refer to Figure B-9 and Table B-5
USB ports 1 and 2	USB type A	Refer to Figure B-10 and Table B-6
USB L1 port	USB type B	Refer to Figure B-11 and Table B-7

Figure B-1. Rear Panel of Onyx 300 Compute Module

L2 Controller

Table B-2 lists the non-proprietary connectors that are located on the rear panel of the L2 controller (refer to Figure B-2). The third column of the table indicates where you can find the pin assignments for these connectors.

Table B-2. L2 Controller Connectors

Port(s)	Connector	Pin Assignments
Console (serial port)	DB9	Refer to Figure B-6
Modem (serial port)	DB9	Refer to Figure B-6
Ethernet port	RJ-45	Refer to Figure B-7
L1 ports (four ports)	USB type A	Refer to Figure B-10 and Table B-6

Figure B-2. Rear Panel of L2 Controller

NUMAlink Module

Figure B-3 shows the L1 port (USB type B connector) that is located on the rear panel of the NUMAlink module. For more information about this connector, refer to:

Figure B-11 for pin number locations
Table B-7 for pin assignments

Note: This information is valid for both the AC- and DC-powered NUMAlink modules.

Figure B-3. Rear Panel of DC-powered NUMAlink Module

SGI Total Performance 900 (TP900) Storage Module

Figure B-4 shows the two SCSI port connectors that are located on the rear panel of the TP900 storage module. For more information about this connector, refer to:

Figure B-8 for pin number locations
Table B-4 for pin assignments

Figure B-4. Rear Panel of TP900 Storage Module

USB Hub

Table B-3 lists the connectors that are located on the USB hub (refer to Figure B-5).

Table B-3. USB Hub Connectors

Connectors	Pin Number Locations	Pin Assignments
USB type A	Refer to Figure B-10	Refer to Table B-6
USB type B	Refer to Figure B-11	Refer to Table B-7

Connectors

Pin Number Locations

Pin Assignments

USB type A

Refer to Figure B-10

Refer to Table B-6

USB type B

Refer to Figure B-11

Refer to Table B-7

Note: The USB hub might look different from the one shown in Figure B-5.

Figure B-5. USB Hub Connectors

DB9 Connector

Figure B-6 shows the DB9 connector pin assignments. This connector is used for the L1 console port and serial ports 1 and 2 of the Onyx 300 compute module. It is also used for the console and modem ports of the L2 controller.

Figure B-6. DB9 Pin Assignments

RJ-45 Connector

Figure B-7 shows the pin assignments for the RJ-45 connector that is located on the rear panel of the Onyx 300 compute module and L2 controller.

Figure B-7. RJ-45 Connector Pin Assignments

External SCSI Port Connector

Figure B-8 shows the external SCSI VHDCI connector pin locations for the external SCSI connector. This connector is used on the Onyx 300 compute module and TP900 storage module. Table B-4 lists the pin assignments for this SCSI connector.

Figure B-8. External SCSI Port Pin Number Locations

Table B-4. SCSI VHDCI Pin Assignments

Pin Number	Signal Name	Pin Number	Signal Name
1	+DB (12)	35	-DB (12)
2	+DB (13)	36	-DB (13)
3	+DB (14)	37	-DB (14)
4	+DB (15)	38	-DB (15)
5	+DB (P1)	39	-DB (P1)
6	+DB (0)	40	-DB (0)
7	+DB (1)	41	-DB (1)
8	+DB (2)	42	-DB (2)
9	+DB (3)	43	-DB (3)
10	+DB (4)	44	-DB (4)
11	+DB (5)	45	-DB (5)
12	+DB (6)	46	-DB (6)
13	+DB (7)	47	-DB (7)
14	+DB (P0)	48	-DB (P0)
15	Ground	49	Ground
16	DIFFSENS	50	Ground
17	TERMPWR	51	TERMPWR
18	TERMPWR	52	TERMPWR
19	Reserved	53	Reserved
20	Ground	54	Ground
21	+ATN	55	-ATN
22	Ground	56	Ground
23	+BSY	57	–BSY
24	+ACK	58	–ACK
25	+RST	59	–RST
26	+MSG	60	–MSG
27	+SEL	61	–SEL
28	+CD	62	–CD
29	+REQ	63	–REQ
30	+IO	64	–IO
31	+DB (8)	65	-DB (8)
32	+DB (9)	66	-DB (9)
33	+DB (10)	67	-DB(10)
34	+DB (11)	68	-DB (11)

Stereo Jack Connector Conductor

Figure B-9 shows the stereo jack connector that is used for the RT interrupt input and RT interrupt output ports of the Onyx 300 compute module. Table B-5 lists the conductor assignments for the stereo jack connector.

Figure B-9. Stereo Jack Connector Conductors

Table B-5. Stereo Jack Connector Conductor Assignments

Conductor	Function
Tip	Interrupt (active low)
Ring	+5 V
Sleeve	Chassis ground and cable shield

USB Type A Connector

Figure B-10 shows the USB type A connector that is used for USB ports 1 and 2 of the Onyx 300 compute module and the four USB ports on the USB hub that connect to the Onyx 300 compute module. Table B-6 lists the pin assignments.

Figure B-10. USB Type A Connector Pin Number Locations

Table B-6. USB Type A Connector Pin Assignments

Signal	Color	Pin Number
VCC	Red	1
-Data	White	2
+Data	Green	3
Ground	Black	4

USB Type B Connector

Figure B-11 shows the USB type B connector that is used for the USB L1 port of the Onyx 300 compute module, the L1 port on the NUMAlink module, and the port connector on the USB hub that connects to the L2 controller. Table B-7 lists the pin assignments.

Figure B-11. USB Type B Connector Pin Number Locations

Table B-7. USB Type B Connector Pin Assignments

Signal	Color	Pin Number
VCC	Red	1
-Data	White	2
+Data	Green	3
Ground	Black	4

Prev	Table of Contents	Next
Appendix A. Technical Specifications		Appendix C. Regulatory Specifications