Appendix B. Cable Descriptions

This appendix describes various 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.

Printer/Character (ASCII) Terminal Cable

Use this cable to attach a printer or a character (ASCII) terminal to Origin200. The server ships with a cable of this type, and you can purchase an additional or replacement cable from Silicon Graphics or your local service provider.

Table B-1 shows the cable connector pin assignments.

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

Pin Number
(DB-9 Female)

Pin Number
(DB-25)

Signal

1

N/C

 

2

2

Receive Data (RXD)

3

3

Transmit Data (TXD)

4

 

 

5

7

Ground (GND)

6

N/C

 

7

N/C

 

8

N/C

 

9

N/C

(Not Connected)


Modem Cable (Full-Handshake)

This 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 will also work 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 Silicon Graphics or from your local service provider.

Table B-2 shows the cable connector pin assignments.

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

Pin Number
(DB-9 Female)

Pin Number
(DB-25)

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

 

(Not Connected)


Origin200 to Indy and Indigo2 Cable (DB-9 to DIN-8)

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

Table B-3 shows the cable connector pin assignments.

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

Pin Number
(DB-9 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

(Not Connected)

 

 


Origin200 to O2, Onyx2, and IBM-Compatible (DB-9 to DB-9)

This connects an Origin200 to Silicon Graphics O2 and Onyx2 workstations, and IBM-compatibles with a DB-9 serial port.

Table B-4 shows the cable connector pin assignments.

Table B-4. Cable Connector Pin Assignments for an Origin200 To O2, Onyx2, andIBM-Compatible Serial Cable

Pin Number
(DB-9 Female)

Signal

Pin Number
(DB-9 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

7

Request To Send (RTS)

8

CTS

8

Clear To Send (CTS)

7

RTS

9

(Not Connected)

 

 


Origin200 to Onyx (DB-9 to DB-9)

This connects an Onyx to the Origin200. Notice that the Onyx DB-9 pin assignments are different from the Origin200 DB-9 pin assignments.

Table B-5 shows the cable connector pin assignments.

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

Pin Number
(DB-9 Female)

Signal

Pin Number
(DB-9 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 (DB-9 to DIN-8)

This cable connects any Macintosh to the Origin200.

Table B-6 shows the cable connector pin assignments.

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

Pin Number
(DB-9 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)

 

 


AUX Port Cables

The Origin200 AUX port is an 8-pin, mini-DIN connector and 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.

AUX Port Terminal Cable

Use this cable to connect 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 Silicon Graphics part number 018-8114-001.

Table B-7 shows the cable connector pin assignments.

Table B-7. Connector Pin Assignments for an AUX Port Terminal Cable

Pin Number
DIN-8 Connector
(Male)

Pin Number DB-25 Connector (Male)

Signal

1

N/C

 

2

N/C

 

3

3

Transmit Data (TXD)

4

7

Ground (GND)

5

2

Receive Data (RXD)

6

N/C

 

7

N/C

 

8

7

Ground (GND)


AUX Port Modem Cable

Use this cable to connect 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 Silicon Graphics part number 018-8109-001.

Table B-8 shows the cable connector pin assignments.

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

Pin Number
DIN-8 Connector
(Male)

Pin Number DB-25 Connector (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

6