Appendix B. Cable Descriptions
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Appendix B. Cable Descriptions

This appendix describes cables that can be used with an Origin200 system, including

Serial Cables

The following sections contain descriptions of various types of serial cables that you can use to attach devices to Origin200 systems.

Printer/Character (ASCII) Terminal Cable

The cable described in this section attaches a printer or a character (ASCII) terminal to the Origin200 server. The server ships with a cable of this type, and you can purchase an additional or replacement cable from SGI or your local service provider.

Table B-1 shows the cable connector pin assignments.

Table B-1. Connector Pin Assignments for Printer/Character (ASCII) Terminal Serial Cable

Pin Number
(DB9 Female)

Pin Number
(DB25)

Signal

1

N/C (not connected)

N/C

2

2

Receive Data (RXD)

3

3

Transmit Data (TXD)

4

N/C

N/C

5

7

Ground (GND)

6

N/C

N/C

7

N/C

N/C

8

N/C

N/C

9

N/C

N/C


Modem Cable (Full-Handshake)

This modem cable provides request-to-send (RTS) and clear-to-send (CTS) connections, and is appropriate for a modem with RTS/CTS flow control. This cable also works with other serial devices (except printers and terminals) that do not need RTS/CTS flow control, and you can use it with a null modem adapter to attach printers and character terminals. You can purchase this full-handshake serial cable from SGI or from your local service provider.

Table B-2 shows the cable connector pin assignments.

Table B-2. Connector Pin Assignments for a Modem Cable

Pin Number
(DB9 Female)

Pin Number
(DB25)

Signal

1

8

Data Carrier Detect (DCD)

2

3

Receive Data (RXD)

3

2

Transmit Data (TXD)

4

20

Data Terminal Ready (DTR)

5

7

Ground (GND)

6

6

Data Set Ready (DSR)

7

4

Request To Send (RTS)

8

5

Clear To Send (CTS)

9

N/C

N/C


Origin200 to Indy and Indigo2 Cable (DB9 to DIN-8)

This serial cable connects Silicon Graphics Indy and Indigo2 workstations to an Origin200 system.

Table B-3 shows the cable connector pin assignments.

Table B-3. Connector Pin Assignments for an Origin200 to Indy and Indigo2 Serial Cable

Pin Number
(DB9 Female)

Signal

Pin Number
(DIN-8 Male)

Signal

1

Data Carrier Detect (DCD)

1

DTR

2

Receive Data (RXD)

3

TXD

3

Transmit Data (TXD)

5

RXD

4

Data Terminal Ready (DTR)

7

DCD

5

Ground (GND)

4

GND

6

Data Set Ready (DSR)

N/C

N/C

7

Request To Send (RTS)

2

CTS

8

Clear To Send (CTS)

6

RTS

9

N/C

N/C

N/C


Origin200 to O2, Onyx2, and IBM Compatible (DB9 to DB9)

This serial cable connects an Origin200 server to Silicon Graphics O2 and Onyx2 workstations, and IBM compatibles with a DB9 serial port.

Table B-4 shows the cable connector pin assignments.

Table B-4. Connector Pin Assignments for an Origin200 to O2, Onyx2, and IBM Compatible Serial Cable

Pin Number
(DB9 Female)

Signal

Pin Number
(DB9 Female)

Signal

1

Data Carrier Detect (DCD)

4

DTR

2

Receive Data (RXD)

3

TXD

3

Transmit Data (TXD)

2

RXD

4

Data Terminal Ready (DTR)

1

DCD

5

Ground (GND)

5

GND

6

Data Set Ready (DSR)

N/C

N/C

7

Request To Send (RTS)

8

CTS

8

Clear To Send (CTS)

7

RTS

9

N/C

N/C

N/C


Origin200 to Onyx (DB9 to DB9)

This serial cable connects an Onyx workstation to the Origin200 server. Notice that the Onyx DB9 pin assignments are different from the Origin200 DB9 pin assignments.

Table B-5 shows the cable connector pin assignments.

Table B-5. Connector Pin Assignments for an Origin200 to Onyx Serial Cable

Pin Number
(DB9 Female)

Signal

Pin Number
(DB9 Male)

Signal

1

Data Carrier Detect (DCD)

9

DTR

2

Receive Data (RXD)

2

TXD

3

Transmit Data (TXD)

3

RXD

4

Data Terminal Ready (DTR)

8

DCD

5

Ground (GND)

7

GND

6

Data Set Ready (DSR)

N/C

N/C

7

Request To Send (RTS)

5

CTS

8

Clear To Send (CTS)

4

RTS

9

(Not Connected)

N/C

N/C


Origin200 to Macintosh Cable (DB9 to DIN-8)

This cable connects any Macintosh computer to an Origin200 system.

Table B-6 shows the cable connector pin assignments.

Table B-6. Connector Pin Assignments for an Origin200 to Macintosh Serial Cable

Pin Number
(DB9 Female)

Signal

Pin Number
(DIN-8 Male)

Signal

1

Data Carrier Detect (DCD)

8

RXD+

2

Receive Data (RXD)

3

TXD–

3

Transmit Data (TXD)

5
7

RXD–
GPi

4

Data Terminal Ready (DTR)

6

TXD+

5

Ground (GND)

4

GND

6

Data Set Ready (DSR)

N/C

N/C

7

Request To Send (RTS)

2

HSKi

8

Clear To Send (CTS)

1

HSKo

9

(Not Connected)

N/C

N/C


AUX Port Cables

The Origin200 AUX port is an 8-pin mini-DIN connector that uses the standard RS-232 serial protocol. The next sections describe cables you can use to connect a terminal or modem to the AUX port. Table B-7 summarizes the part numbers of the SGI cables described in this section.

Table B-7. SGI AUX Port Cables for Origin200 System

Cable

Connector Type

Part Number

Terminal cable

DIN-8 male to DB25 male

018-8114-001

Modem cable

DIN-8 male to DB25 male

018-8109-001

Silicon Graphics workstation/server cable

DIN-8 to DIN-8

018-8223-001


AUX Port Terminal Cable

The cable described in this section connects the Origin200 AUX port to a terminal. Note that this cable is identical to the one used to attach a terminal to a Silicon Graphics Indy, Indigo, or Indigo2 workstation and CHALLENGE S server. The cable is available as SGI part number 018-8114-001.

Table B-8 shows the cable connector pin assignments.

Table B-8. Connector Pin Assignments for an AUX Port Terminal Cable

Pin Number
(DIN-8 Male)

Pin Number
(DB25 Male)

Signal

1

N/C

N/C

2

N/C

N/C

3

3

Transmit Data (TXD)

4

7

Ground (GND)

5

2

Receive Data (RXD)

6

N/C

N/C

7

N/C

N/C

8

7

Ground (GND)


AUX Port Modem Cable

The cable described in this section connects the Origin200 AUX port to a modem. Note that this cable is identical to the one use to attach a modem to a Silicon Graphics Indy, Indigo, or Indigo2 workstation and CHALLENGE S server. The cable is available as SGI part number 018-8109-001.

Table B-9 shows the cable connector pin assignments.

Table B-9. Connector Pin Assignments for an AUX Port Modem Cable

Pin Number
(DIN-8 Male)

Pin Number
(DB25 Male)

Signal

1

20

Data Terminal Ready (DTR)

2

5

Clear To Send (CTS)

3

2

Transmit Data (TXD)

4

7

Ground (GND)

5

3

Receive Data (RXD)

6

4

Request To Send (RTS)

7

8

Data Carrier Detect (DCD)

8

7

Ground (GND)

N/C

1

N/C

N/C

6

N/C


Silicon Graphics Indy, Indigo2, and CHALLENGE S Cable

Use this cable to connect a Silicon Graphics workstation or server with a DIN-8 serial port (such as an Indy or Indigo2 workstation or CHALLENGE S server) to the AUX port of an Origin200 server. This cable is available as SGI part number 018-8223-001.

Table B-10. Connector Pin Assignments for an SGI Workstation/Server DIN-8 Serial Port to the Origin200 AUX Port

Pin Number
(DIN-8 Male)

Pin Number
(DIN-8 Male)

Signal

1

7

Data Carrier Detect (DCD)

2

6

Request To Send (RTS)

3

5

Receive (RXD)

4

4

Ground (GND)

5

3

Transmit (TXD)

6

2

Clear To Send (CTS)

7

1

Data Terminal Ready (DTR)

8

8

Ground (GND)


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Appendix A. Connector Pinout Assignments  Appendix C. Supported Terminals