C System Board Connector Pinouts





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Connector Locations page C-1 Parallel Connector page C-2 Audio/AUI Connector page C-3 AUI Connector page C-4 Keyboard and Mouse Connector page C-5 ISDN Connectors page C-5 Serial Ports A and B Connector page C-6 Twisted Pair Ethernet Connector page C-7 SCSI Connector page C-7 13W3 Connector page C-9 Audio Ports and Audio Module - S10BSX Service Code Systems page C-10 -----------------------------------------------------------------------

C.1 Connector Locations

Chapter 1, "Product Description" shows the back panel of the system illustrating the connector locations.

The following sections describe each connector on the back panel. Table C-1 through Table C-12 show the pin assignments, signal descriptions, and an illustration of each connector.

C.2 Parallel Connector

    Table C-1 Parallel Connector Pin Assignments

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Pin Function Signal Description I/O Level -------------------------------------------------------------------
                                                            
1                     DataStrobe*  Data valid Strobe   I/O  24 ma OC
                                                            
2                     Data Bit 0   Data Bit 0          I/O  24 ma OC
                                                            
3                     Data Bit 1   Data Bit 1          I/O  24 ma OC
                                                            
4                     Data Bit 2   Data Bit 2          I/O  24 ma OC
                                                            
5                     Data Bit 3   Data Bit 3          I/O  24 ma OC
                                                            
6                     Data Bit 4   Data Bit 4          I/O  24 ma OC
                                                            
7                     Data Bit 5   Data Bit 5          I/O  24 ma OC
                                                            
8                     Data Bit 6   Data Bit 6          I/O  24 ma OC
                                                            
9                     Data Bit 7   Data Bit 7          I/O  24 ma OC
                                                            
10                    Ack*         Data Acknowledge    I    TTL
                                                            
11                    Busy         Busy                I    TTL
                                                            
12                    PE           Paper Error         I    TTL
                                                            
13                    Select       Select              I    TTL
                                                            
14                    AutoFeed*    AutoFeed            O    24 ma TTL
                                                            
15                    Error*       Error               I    TTL
                                                            
16                    Reset*       Initialize          O    24 ma TTL
                                                            
17                    SlctIn*      Select In           O    24 ma TTL
                                                            
18                    Shield                                GND
                                                            
19                    Shield                                GND
                                                            
20                    Shield                                GND
                                                            
21                    Shield                                GND
                                                            
22                    Shield                                GND
                                                            
23                    Shield                                GND
                                                            
24                    Shield                                GND
                                                            
25                    Shield                                GND
                                                            
26                    Shield                                GND
                                                            
*  Active low signal                                        

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C.3

Audio/AUI Connector

    Table C-2 Audio/AUI Connector Pin Assignments

-----------------------------------------------------------
Pin Function I/O Level Signal Description -----------------------------------------------------------
                              
1    AUI_DO-     O    Analog  Data Out Positive/Negative
                              
2    AUI_DI+     I    Analog  Data Out Positive/Negative
                              
3    AUI_CI-     I    Analog  AUI Collision Positive/Negative
                              
4    +12 VDC     O    DC      
                              
5    EMCTL       I&O   TTL     External Mode Control
                              
6    CHI_DX      I&O   TTL     Digital Audio Data Transmit
                              
7    CHI_CLK     I&O   TTL     Digital Audio Clock
                              
8    CHI_DFSYNC  I&O   TTL     Digital Audio Frame Sync
                              
9    N.C.                     
                              
10   +5 VDC      O    DC      
                              
11   +5VDC       O    DC      
                              
12   ExtPwrDn    I    TTL     
                              
13   +5 VDC      O    DC      
                              
14   AUI_DO+     O    Analog  Data Out Positive/Negative
                              
15   AUI_DI_     I    Analog  Data Out Positive/Negative
                              
16   AUI_CI+     I    Analog  AUI Collision Positive/Negative
                              
17   Ground           GND     
                              
18   CHI_ResetS  I&O   TTL     Digital Audio Reset
                              
19   CHI_DR      I&O   TTL     Digital Audio Data Receive
                              
20   CHI_FS      I&O   TTL     
                              
21   D/C         I&O   TTL     Data/Control Select
                              
22   N.C.                     
                              
23   Ground           GND     
                              
24   Ground      O    GND     
                              
25   N.C.                     
                              
26   Ground           GND     

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The Audio/AUI connector is installed only on the S10 service code model.

C.4 AUI Connector

The AUI connector is installed only on the SPARCstation 10 system with the S10BSX service code.

    Table C-3 AUI Connector Pin Assignments

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Pin Function I/O Level Signal Description ---------------------------------------------------------
                            
1    AUI_DO-   O    Analog  Data Out Positive/Negative
                            
2    AUI_DI+   I    Analog  Data Out Positive/Negative
                            
3    AUI_CI-   I    Analog  AUI Collision Positive/Negative
                            
4    +12 VDC   O    DC      
                            
5    N.C .                  
                            
6    N.C .                  
                            
7    N.C .                  
                            
8    N.C .                  
                            
9    N.C .                  
                            
10   N.C .                  
                            
11   N.C .                  
                            
12   N.C .                  
                            
13   N.C .                  
                            
14   AUI_DO+   O    Analog  Data Out Positive/Negative
                            
15   AUI_DI_   I    Analog  Data Out Positive/Negative
                            
16   AUI_CI+   I    Analog  AUI Collision Positive/Negative
                            
17   Ground         GND     
                            
18   N.C .                  
                            
19   N.C .                  
                            
20   N.C .                  
                            
21   N.C .                  
                            
22   N.C.                   
                            
23   N.C .                  
                            
24   N.C .                  
                            
25   N.C.                   
                            
26   Ground         GND     

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C.5 Keyboard and Mouse Connector

    Table C-4 Keyboard/Mouse Connector Pin Assignments and Signal Descriptions

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Pin Function I/O Level Signal Description --------------------------------------------------------------
                                             
1                     Ground     O    GND    
                                             
2                     Ground     O    GND    
                                             
3                     +5 VDC     O    VCC    
                                             
4                     Mouse In   I    TTL    Input From Mouse
                                             
5                     KeyBd Out  O    TTL    Output to Keyboard
                                             
6                     KeyBd In   I    TTL    Input from Keyboard
                                             
7                     PowerOn*   I    TTL    Power on key
                                             
8                     +5VDC      O    VCC    
                                             
*  Active low signal                         

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C.6 ISDN Connectors

ISDN connectors are on specific models of the S10 service code only.

    Table C-5 ISDN Connectors Signal Descriptions

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Signal Description -------------------------------------------------------------
             
OUT_NT3 +/-  Differential External Power Supply Source (NC)
             
NT_In +/-    Differential Network Terminator Data Input
             
NT_Out +/-   Differential Network Terminator Data Output
             
OUT_Nt@ +/-  Differential Internal Power Supply Source 
             
OUT_TE3 +/-  Differential Internal Power Supply Source  (NC)
             
TE_OUT +/-   Differential Terminal Equipment Data Output
             
TE_In +/-    Differential Terminal Equipment Data Input
             
OUT_TE2 +/-  Differential External Power Supply Source 

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C.7 Serial Ports A and B Connector

    Table C-6 Serial Port A/B Pin Assignments

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Pin Function I/O Level Signal Description ------------------------------------------------------------------
                                    
1      N.C.                         
                                    
2      Xmit Data A  O    RS232/423  Xmit Data A/Transmit Data Port A
                                    
3      Rec Data A   I    RS232/423  Receive Data Port A
                                    
4      RTS A        O    RS232/423  Request to Send Port A
                                    
5      CTS A        I    RS232/423  Clear to Send Port A
                                    
6      DSR A        I    RS232/423  Data Set Ready Port A
                                    
7      Ground            GND        
                                    
8      DCD A        I/O  RS232/423  Data Carrier Detect Port A
                                    
9      N.C.                         
                                    
10     N.C.                         
                                    
11     DTR B        I    RS232/423  Data Terminal Ready Port B
                                    
12     DCD B        I    RS232/423  Data Carrier Detect Port B
                                    
13     CTS B        I    RS232/423  Clear To Send Port B
                                    
14     Xmit Data B  O    RS232/423  Transmit Data Port B
                                    
15     TRxC A       I    RS232/423  Receive/Transmit Clock Port A 
                                    (Pullup)
                                    
16     Rec Data B   I    RS232/423  Receive Data Port B
                                    
17     RTxC A       I    RS232/423  Secondary/Transmit Clock 
                                    (Receive) Port
                                    
18     TRxC B       I    RS232/423  Receive/Transmit Clock Port B 
                                    (Pullup)
                                    
19     RTS B        O    RS232/423  Request to Send Port B
                                    
20     DTR A        O    RS232/423  Data Terminal Ready Port A
                                    
21-23  N.C.                         
                                    
24     TxC A        O    RS232/423  Transmit Clock Port A
                                    
25     TxC B        O    RS232/423  Transmit Clock Port B

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Note - TRxC A and TxC A are connected to the same bidirectional pin.

C.8 Twisted Pair Ethernet Connector

    Table C-7 Twisted Pair Ethernet Pin Assignments

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Pin Function I/O Level Signal Description ------------------------------------------------------------
                            
1    TPO+      O    Analog  Differential Twisted Pair 
                            Transmit Data
                            
2    TPO-      O    Analog  Differential Twisted Pair 
                            Transmit Data
                            
3    TPI+      I    Analog  Differential Twisted Pair Receive 
                            Data
                            
4    N.C.                   
                            
5    N.C.                   
                            
6    TPI-      I    Analog  Differential Twisted Pair Receive 
                            Data
                            
7    N.C.                   
                            
8    N.C.                   

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C.9 SCSI Connector

Table C-8 shows the pin assignments, signal description, and an illustration of the SCSI connector on the back panel of the system.

    Table C-8 SCSI Pin Assignments

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Pin Function Level Pin Function I/O Level Description --------------------------------------------------------------------------------
                                                                  
1                    Ground    GND    26   sd0*       I&O   TTL    SCSI Data Bit 0
                                                                  
2                    Ground    GND    27   sd1*       I&O   TTL    SCSI Data Bit1
                                                                  
3                    Ground    GND    28   sd2*       I&O   TTL    SCSI Data Bit 2
                                                                  
4                    Ground    GND    29   sd3*       I&O   TTL    SCSI Data Bit 3
                                                                  
5                    Ground    GND    30   sd4*       I&O   TTL    SCSI Data Bit 4
                                                                  
6                    Ground    GND    31   sd5*       I&O   TTL    SCSI Data Bit 5
                                                                  
7                    Ground    GND    32   sd6*       I&O   TTL    SCSI Data Bit 6
                                                                  
8                    Ground    GND    33   sd7*       I&O   TTL    SCSI Data Bit 7
                                                                  
9                    Ground    GND    34   sdp*       I&O   TTL    SCSI Data Parity
                                                                  
10                   Ground    GND    35   Ground          GND    
                                                                  
11                   Ground    GND    36   Ground          GND    
                                                                  
12                   Ground    GND    37   Ground          GND    
                                                                  
13                   Ground    GND    38   Termpower  I&O   TTL    Termination Voltage
                                                                  
14                   Ground    GND    39   Ground          GND    
                                                                  
15                   Ground    GND    40   Ground          GND    
                                                                  
16                   Ground    GND    41   atn*       O    TTL    Attention
                                                                  
17                   Ground    GND    42   Ground          GND    
                                                                  
18                   Ground    GND    43   bsy*       O    TTL    Busy
                                                                  
19                   Ground    GND    44   ack*       O    TTL    Acknowledge
                                                                  
20                   Ground    GND    45   rst*       O    TTL    Reset
                                                                  
21                   Ground    GND    46   msg*       O    TTL    Message
                                                                  
22                   Ground    GND    47   sel*       O    TTL    Select
                                                                  
23                   Ground    GND    48   cd*        O    TTL    Control/Data
                                                                  
24                   Ground    GND    49   req*       O    TTL    Request
                                                                  
25                   Ground    GND    50   io*        O    TTL    Input/Output
                                                                  
* Active low signal                                               

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C.10 13W3 Connector

Table C-9 shows the pin assignments, function, and a picture of the 13W3 connector. This connector is built into the S10BSX service code (as noted on the system board). For the S10 service code, you must insert a video frame buffer card with a 13W3 connector on it into one of the SBus slots to drive the monitor.

    Table C-9 13W3 Connector Pin Assignments

-----------------------------
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    Ground             GND
                        
5    Comp Sync     O    TTL
                        
6    Hort Sync     O    TTL
                        
7    Serial Write       TTL
                        
8    Sense <1'>     I    TTL
                        
9    Sense <2'>     I    TTL
                        
10   Ground             GND

-----------------------------

C.11 Audio Ports and Audio Module - S10BSX Service Code Systems

C.11.1 Audio Ports

The audio ports are on the model with the S10BSX service code on the system board. Table C-10 gives the signals for the audio ports.

    Table C-10 Signals for the Audio Ports

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Headphone Microphone Microphone Line-Out Line-In (new) (old) -----------------------------------------------------------------------------------
                                                                         
Tip            Left Channel   Mono In      Left Channel   Left Channel   Left Channel
                                                                         
Ring (Center)  Right Channel  Microphone   Right Channel  Right Channel  Right Channel
                              power                                                     
                                                                                        
                                                                         
Shield         Return         Ground       Return         Return         Return

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C.11.2 Headphone Connector

This connector is for connecting a set of stereophonic headphones to the system for private listening of audio output.

C.11.3 Microphone Connector

This connector is used to connect the Sun Microphone to the system to provide it with voice input.

C.11.4 Audio Line-Out Connector

This connector is to connect the system audio output to a stereophonic amplifier and external loudspeakers.

C.11.5 Audio Line-In Connector

This connector is to connect external sound sources such as a compact disc player or cassette tape player to the system.

C.11.6 Audio Module Signals

The audio module has two connectors, a digital connector and an audio connector. Table C-11 and Table C-12 list the signals for the two audio module connectors.

    Table C-11 Pinout of Audio Module Digital Connector

----------------------------------------------
Pin Signal Pin Signal ----------------------------------------------
                               
1    Speaker Negative     16   Speaker Positive
                               
2    Ground               17   Ground
                               
3    Active low           18   NC
                               
4    SBI Reset            19   SBI Alternate 
                               Power Down
                               
5    NC                   20   +12V
                               
6    SBI Used Power Down  21   +12V
                               
7    SBI Data/Control     22   +12V
                               
8    +5V                  23   +5V
                               
9    NC                   24   +5V
                               
10   SBI Time Slot Out    25   +5V
                               
11   Ground               26   Ground
                               
12   Ground               27   Ground
                               
13   SBI Frame Sync       28   Ground
                               
14   SBI Data Transmit    29   SBI Time Slot In
                               
15   SBI Clock            30   SBI Data Receive

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    Table C-12 Pinout of Audio Module Analog Connector

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Pin Signal Pin Signal ---------------------------------------------------
                                   
1    Headphone Ring (Center)  16   Headphone Tip
                                   
2    Headphone Shield         17   Headphone Shield
                                   
3    Chassis Ground           18   Chassis Ground
                                   
4    Chassis Ground           19   Chassis Ground
                                   
5    Microphone Tip           20   Microphone Ring 
                                   (Center)
                                   
6    Microphone Shield        21   Microphone Shield
                                   
7    Chassis Ground           22   Chassis Ground
                                   
8    Chassis Ground           23   Chassis Ground
                                   
9    Line Out Ring (Center)   24   Line Out Tip
                                   
10   Line Out Shield          25   Line Out Shield
                                   
11   Chassis Ground           26   Chassis Ground
                                   
12   Chassis Ground           27   Chassis Ground
                                   
13   Line In Tip              28   Line In Ring 
                                   (Center)
                                   
14   Line In Shield           29   Line In Shield
                                   
15   Chassis Ground           30   Chassis Ground

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