Dave's Pinouts Page

Last modified: Mon 25 Jan 2010

What's this?

This is a collection of pinouts that I've gathered over the years and umpteen hours of buzzing out cables.

RS-232 connections
SGI serial pinouts
Annex 2 specification
Annex 3 specification
Micro Annex specification
SGI "Etherlite" terminal servers
- ... to Origin systems
- ... to Challenge systems
SGI cables using RJ45 adaptors
Miscellaneous pinouts

In general, holding the connector in your hand, tab side down, open end towards you, and insert the stripped cable with the *blue* wire on the left, except for RJ11 4-wire connectors, which has *yellow* on the left.

. RS-232 connection table

   Source	Destination	          Signal      Colour
   ------	-----------		  ------      -----
   TXD		RXD			   TXD        Orange
   RXD		TXD			   RXD	      Black
   RTS		CTS 			   RTS	      Red
   CTS		RTS			   CTS	      Green
   GND		GND			   GND	      Brown
   DCD	        DTR			   DCD	      Blue
   DTR		DCD			   DTR	      White

Standard SGI pinouts from the serial(7) manual page:

DB-9 Female connector. Found on Challenge, Onyx, Personal IRIS, and Power Series systems:

          -------------------
          \  5  4  3  2  1  /
           \   9  8  7  6  /
            ---------------

        Pin | Name | Description
        --------------------------------
Orange   2  | TD   | Transmit Data
Black    3  | RD   | Receive Data
Red      4  | RTS  | Request To Send
Green    5  | CTS  | Clear To Send
Brown    7  | SG   | Signal Ground
White    8  | DCD  | Data Carrier Detect
Blue     9  | DTR  | Data Terminal Ready

DB-9 Male Connector. Found on O2, Octane, and Origin systems, have the following IBM(R) PC/AT(tm) compatible pin assignments:

          -------------------
          \  1  2  3  4  5  /
           \   6  7  8  9  /
            ---------------

     Pin | Name | Description
     --------------------------------
Blue  1  | DCD  | Data Carrier Detect
Black 2  | RD   | Receive Data
Orange3  | TD   | Transmit Data
White 4  | DTR  | Data Terminal Ready
Brown 5  | GND  | Signal Ground
Red   7  | RTS  | Request To Send
Green 8  | CTS  | Clear To Send

Mini-DIN-8 serial port connectors are found on the Personal IRIS 4D/30, 4D/35, Indigo, Indy, and Indigo2. They are also found on the Origin 200 and Origin 2000 systems, used for the MMSC/System controller ("Aux") port. The pin assignments are:

                   ---------
                  / 8  7  6 \
                 (  5  4  3  )
                  \  2   1  /
                   ---------

    Pin   | Name    | Description
   -----------------------------------------
     1    | DTR     | Data Terminal Ready
     2    | CTS     | Clear To Send
     3    | TD      | Transmit Data
     4    | SG      | Signal Ground
     5    | RD      | Receive Data
     6    | RTS     | Request To Send
     7    | DCD     | Data Carrier Detect
     8    | SG      | Signal Ground

Since there is no such thing as a RJ-MiniDIN-8 adaptor, an SGI P/N X5-9to8 pigtail is used to give a female DB9 on systems with Mini-DIN-8 connectors.

Mini-DIN-6 P/S2 keyboard connectors are found on Indigo, Indigo2, Indy, O2, Octane, and Onyx systems. Note that Indigo systems use the same connector but a different pinout -- see below for that pinout. The pin assignments for the system keyboard connector are shown in the following table:

                         ------
                        / 5 3  \
                       | ---  1 |
                       | ---  2 |
                        \ 6 4  /
                         ------

                     Pin Assignments
                   ___________________
                   Pin_|_Description__
                    1  | Data
                    2  | Reserved
                    3  | Signal Ground
                    4  | Power +5V
                    5  | Clock
                    6  | Reserved

Mini-DIN-6 keyboard connectors are found on Indigo, Indigo2, Indy, O2, Octane, and Onyx systems. This pinout is for Indigo systems which _is not_ P/S2 compatible. The pin assignments for the Indigo keyboard connector are shown in the following table:

                         ------
                        / 5 3  \
                       | ---  1 |
                       | ---  2 |
                        \ 6 4  /
                         ------

                     Pin Assignments
                   ___________________
                   Pin_|_Description__
                    1  | KRCD	Keyboard Receive
                    2  | MRCD	Mouse Receive
                    3  | GND	Ground
                    4  | Power  +8V
                    5  | KTXD	Keyboard Transmit
                    6  | Power	-8v

Older SGI systems used a DB15 connector for the keyboard and mouse, with either a DIN6 or DB9 connector at the keyboard end. Here's the pinouts for the DB15-DIN6 cable:

	DB15 Male	DIN 6		Signal/Signal
	---------	-----		-------------
	2		3		Gnd/Gnd
	4		1		K_TXD/K_RXD
	5		5		K_RXD/K_TXD
	9		4		+12/+8
	10		2		M_TXD/M_RXD
	15		6		???/???

And here's the pinouts for the DB15-DB9 keyboard cable:

	DB15 Male	DB-9		Signal/Signal
	---------	-----		-------------
	1		-		Ground
	2		6		Ground
	3		9		Ground
	4		2		K_TXD/K_RXD
	5		8		K_RXD/K_TXD
	7		7		+12
	8		-		+12
	9		-		+12
	10		5		M_TXD/M_RXD
	15		4		-12

SGI P/S2 Keyboard and Mouse to RJ45 plug, using (2) mini-din6 connectors to (1) RJ45 plug.
Use to extend mouse & keyboard connections with RJ45 cable. ONLY for SGI systems that have P/S 2 compatible ports (Indy, Indigo2, O2, etc).

This is a "Y" cable; two mini-din6 connectors are wired to one RJ45 plug. A pair of adaptors is needed, one mini-din6 female set, and one mini-din6 male set. Custom made by Anixter 408/435-1212

  Mini-Din6 #1		RJ45 plug
(male or female)
  ------------		---------
      5			1
      4			2
      3			3
      1			4
   Mini-Din6 #2
  -------------
      5			5
      4			6
      3			7
      1			8

SGI Dialbox to O2/Octane/etc Female DB9 to Female DB9.

o2 (female)    Dial Box (female)
---------     ----------
    1 (DCD) ---------->8 (DCD)
    2 (RD)  ---------->3  (RD)
    3 (TD)  ---------->2  (TD)
    5 (SG)  ---------->7 (GND)
    7 (RTS) ---------->4 (RTS)
    8 (CTS) ---------->5 (CTS)

Most Challenge L and XL systems have a front panel System Controller DB9 available. However, early systems were not shipped with the front plate to present a female DB9. There may be a small ribbon cable with an IDC end (edge row connector) available behind the access panel; if not, you'll have to take the back skins and panel off (where the power cord plugs in) to get access to the IDC socket off the backplane. Anyway, here are the pinouts for the IDC connector:

idc 8x2		db9
2  (td)		3	rd
10 (rd)		2	td
13 (gd)		7	gnd

Annex 2 Connectors

An Annex 2 uses standard telco (PBX) 50 pin connectors. (Centronics 50 pin connector). Each connector holds eight (8) terminal lines, like so:

   PBX #      Signal
   -----      ------
   1           DTR
   2           GND
   3           N/C
   26          TXD
   27          RXD
   28          CTS

      ------------------------
     /26 27 28 29 30  .... 50 \
    / 1  2  3  4  5   .... 25  \=======
    ----------------------------=======

Groupings of colours, suitable for punching down to an RJ45 8pin
crossconnect panel:

1.             2.        3.       4.
   W / Bl    W / Br    R / O     R / Gy
  Bl / W    Br / W     O / R    Gy / R
   ----     ------     ----     ------
   G / W    Bl / R    Br / R     O / K
   W / O     W / Gy    R / Gr    K / Bl
   O / W    Gy / W    Gr / R    Bl / K
   W / G     R / Bl    R / Br    K / O
   -----    ------     -----    ------

5.             6.        7.       8.
   K / Gr    Y / Bl    Y / Br    P / O
  Gr / K    Bl / Y    Br / Y     O / P
   ----     ------     ----     ------
  Gy / K    Gr / Y    Bl / P    Br / P
   K / Br    Y / O     Y / Gy    P / Gr
  Br / K     O / Y    Gy / Y    Gr / P
   K / Gy    Y / Gr    P / Bl    P / Br
   -----    ------     -----    ------

Modular adapters (Ortronics' P/N OR-8120M25-8/6) are used to adapt the 50pin PBX connector to eight (8) six pin RJ45 plugs. Each 6 pin RJ45 plug has the following pinout:

   RJ45		PBX #       Signal
   -----	-----       ------
   1		28          CTS
   2		27          RXD
   3		1           DTR
   4		26          TXD
   5		2           GND
   6		3           N/C

Connecting a 6 conductor straight through RJ45 data cable from this plug to a standard RJ45 to DB-style connector (see above) yields the following colour / signal table. THIS IS THE IMPORTANT TABLE!

   RJ45 #	DB Colour	Signal
   ------       -----           ------
   1		Blue		USED FOR 8 PIN CONNECTIONS ONLY
   2		Orange		CTS
   3		Black		RXD
   4		Red		DTR
   5		Green		TXD
   6		Yellow		GND
   7		Brown		N/C
   8	        White		USED FOR 8 PIN CONNECTION ONLY

The console connection for an Annex 2 is on port 1. Use one of the below connectors to hook it up to the desired gadget.

Annex 2 Pinouts

SGI DB-9 Male to Annex 2, using standard RJ45->DB-9 male adaptor.
(Challenge, Onyx, PI, Power Series; with mini din-8 to db9 female pigtail adaptor: Indigo, Indy, Indigo^2)

   DB Pin       RJ colour
   --------     -------
   2	TXD	Black
   3	RXD	Green
   5	CTS	Red
   7	SG	Yellow
   9	DTR	Brown

SGI DB-9 Female to Annex 2, using standard RJ45->DB-9 female adaptor.
(O2, Octane, Origin series)

UNKNOWN

Cisco RJ45 Console to Annex 2, using RJ connectors only:

	Annex RJ45-6pin:  Standard Data cable crimp (see above)

	Cisco RJ45-8pin:
             3  G
	     5  Y
	     6  K
     	    clip all other wires

Cisco DB25 Male Console to Annex 2, using standard RJ45-DB25 adaptor:

     DB Pin	RJ Colour
     ------	--------
	2	Green
	3	Black
	7	Yellow

Cisco (Crescendo) FDDI Concentrator to Annex 2, using 6-pin RJ45 cable.

     (standard pinout)
	RJ End 1	RJ End 2
	--------	--------
	1  Blue		1 White
	2  Yellow	2 Green
        3  Green	3 Black
	4  Red		4 Red
        5  Black	5 Yellow
        6  White	6 Blue

Terminal DB25 Male or Female to Annex 2:

     DB Pin	RJ Colour
     ------	--------
	2	Black
	3	Green
	7	Yellow

SGI Challenge L/XL system controller DB9 Male to Annex 2, using standard RJ45-DB9 Male adaptor:

     DB Pin	RJ Colour
     ------	--------
	2	Black
	3	Green
	7	Yellow
	4,5,8	tie together

Cabletron IRM Console DB9 Male to Annex 2, using standard RJ45-DB9 Male adaptor:

     DB Pin	RJ Colour
     ------	--------
	2	Black
	3	Green
	5	Yellow
	7	Brown
	8	Red

Mips box DB9 Female to Annex2, using standard RJ45-DB9 Female adaptor:

     DB Pin	RJ Colour
     ------	--------
	2	Green
	3	Black
	5	Yellow

SGI Indigo, Indy, Challenge S Mini-Din 8 to Annex 2, using a chopped up SGI cable (P/N 018-8114-001) to RJ45 6-wire jack:

	(rj45 jack metal-side up)

	rj45	colour
	2	w/r	(gnd)
	3	w/k	(rd)
	5	k/w	(td)

Annex 3 Connectors

An Annex 3 uses standard telco (PBX) 50 pin connectors. (Centronics 50 pin connector). Each connector holds six (6) terminal lines, like so:

   PBX #       Signal
   -----       ------
   1           DCD
   2           GND
   3           DSR
   4	       RTS
   26          RXD
   27          TXD
   28          DTR
   29          CTS

      ------------------------
     /26 27 28 29 30  .... 50 \
    / 1  2  3  4  5   .... 25  \=======
    ----------------------------=======

Modular adapters (Ortronics' P/N OR-???????????) are used to adapt the 50pin PBX connector to six (6) eight pin RJ45 plugs. Each 8 pin RJ45 plug has the following pinout:

   RJ45	   DB Colour  	PBX #       Signal
   -----   --------	-----       ------
   1        Blue        27	    TXD
   2	    Orange	2	    GND
   3	    Black	28	    DTR
   4	    Red		1	    DCD
   5	    Green	26	    RXD
   6	    Yellow	3	    DSR
   7	    Brown	29	    CTS
   8	    White	4	    RTS

The console connection on an Annex 3 is on a seperate RJ45 plug on the back of the system. Use a standard RJ45-DB25 adaptor with the following pinout to connect it to a terminal:

   RJ45 #	DB Colour	Signal
   ------       -----           ------
     2		Green
     3		Black
     4		White
     5		Blue
     6		connect to pin 9
     7		Orange
     8		Yellow
     20		Red

Annex 3 Pinouts

SGI DB-9 Male to Annex 3, using standard RJ45->DB-9 male adaptor.
(Challenge, Onyx, PI, Power Series; with mini din-8 to db9 female pigtail adaptor: Indigo, Indy, Indigo^2)

   DB Pin       RJ colour
   --------     -------
   1		White
   2		Green
   3		Blue
   6		Brown
   7		Orange

SGI or MIPS DB-9 Female to Annex 3, using standard RJ45->DB-9 female adaptor.
(O2, Octane, Origin series)

   DB Pin       RJ colour
   --------     -------
   2		Blue
   3		Green
   5		Orange

Cisco (Crescendo) FDDI Concentrator to Annex 3, using 8-pin RJ45 cable.

     (standard pinout)
	RJ End 1	RJ End 2
	--------	--------
	1 Blue		1 Black
	2 Orange	2 Red
	3 Black		3 Blue
	4 Red		4 Orange
	5 Green		5 Yellow
	6 Yellow	6 Green
	7 Brown		7 Brown
	8 White		8 White

Cisco Catalyst 5000 to Annex 3, using standard RJ45->DB25 Male adaptor.

	DB Pin		RJ Colour
	--------	--------
	2		Blue
	3		Green
	7		Orange

Micro Annex Connectors

A MicroAnnex has RJ45 connectors with the following pinout:

   RJ Pin	Signal     DB/RJ Colour
   ------	------     -----------
    1		RTS	   Blue
    2		DTR        Orange
    3		TXD	   Black
    4		DCD	   Red
    5		RXD	   Green
    6		GND	   Yellow
    7		DSR	   Brown
    8		CTS	   White

Note that some ports on MicroAnnexen may not support full modem control. These ports are missing RTS, DCD, and DSR.

Micro Annex Pinouts

SGI DB-9 Male to MicroAnnex, using standard RJ45-DB9 male adaptor.
(Challenge, Onyx, PI, Power Series; with mini din-8 to db9 female pigtail adaptor: Indigo, Indy, Indigo^2)

   DB Pin   DB Signal     RJ colour
   ------   ---------     -------
   2	      TD          Green
   3	      RD          Black
   7	      GND         Yellow

Short 4,5,8 together if you need to spoof flow control. Challenge System Controller Ports need this.

SGI DB-9 Female to MicroAnnex, using standard RJ45-DB9 female adaptor.
(O2, Octane, Origin series)

   DB Pin       RJ colour
   --------     -------
   2		Black
   3		Green
   7		Yellow
   4,5,8	tie together

Terminal DB25 Male to MicroAnnex:

   DB Pin       RJ colour
   --------     -------
   2		Green
   3		Black
   7		Yellow

Cisco Console DB25 Male to MicroAnnex:

   DB Pin       RJ colour
   --------     -------
   2		Black
   3		Green
   7		Yellow

Cisco Console RJ45 to MicroAnnex:

    Cisco RJ45-8pin: Standard Data cable crimp (see above)

    Annex RJ45-8pin:

     3    Yellow  or Gr/Wh
     5    Black   or Wh/Gr
     6    Red     or Bl/Wh

1-2,4,7-8 can be connected as usual with no harm.

The ends are sensitive; you *must* plug the Cisco end into the Cisco,
and the Annex end into the Annex.

SGI "Etherlite" terminal servers are remarketed products from Central Data Systems. They are 8, 16, or 32 port ethernet based serial ports, connected "directly" to the SGI host system via a kernel driver and some system daemons -- they give normal looking devices as /dev/tty[mdf][\d][\d+]. You need the 'el_serial' inst package installed to use these servers. Good additional information on the drivers is at

http://www.digi.com.

         .---.                +--------------------------+
        _|   |_               | pin | signal | direction |
       |       |              |--------------------------|
 .-----~       ~-----.        |  1  |  RTS   |    out    |
 |                   |        |  2  |  DSR   |    in     |
 |                   |        |  3  |  DCD   |    in     |
 |                   |        |  4  |  RxD   |    in     |
 |                   |        |  5  |  TxD   |    out    |
 |                   |        |  6  |  GND   |    n/a    |
 |                   |        |  7  |  DTR   |    out    |
 +__|_|_|_|_|_|_|_|__+        |  8  |  CTS   |    in     |
    8 7 6 5 4 3 2 1           +--------------------------+
						          
RJ45 shown above 		DB9 on Origin:
1  |  RTS		     	Blue  	7
2  |  DSR 			Orange	N/A
3  |  DCD			Black 	1
4  |  RxD 			Red   	3
5  |  TxD			Green 	2
6  |  GND			Yellow	5
7  |  DTR 			Brown	4
8  |  CTS 			White 	8
						          
RJ45 shown above		DB9 on Challenge
1  |  RTS 			Blue 	4
2  |  DSR  			Orange	N/A
3  |  DCD			Black	8
4  |  RxD 			Red	2
5  |  TxD			Green	3
6  |  GND 			Yellow	7
7  |  DTR			Brown	9
8  |  CTS			White	5

SGI cables, using rj45 connectors.

Using straight-through 8-pin RJ45 cables and the various pinouts listed in this section, it is possible to mix-and-match the connectors to what is needed. Connect two "modem" adaptors (one DB25 Male for the modem, one DB9 Male for the SGI) for a modem cable, or exchange one "modem" adaptor for a "null" adaptor to create a null modem cable to connect a terminal to an SGI, or two SGI systems back-to-back. Since there is no such thing as a RJ-MiniDIN-8 adaptor, an SGI P/N X5-9to8 pigtail is used to give a female DB9 on systems with Mini-DIN-8 connectors.

SGI Modem cable, using rj45 connectors. Use one of each:

     Male                      Female   Male
   DB25 Pin	RJ Colour       DB9 Pin  DB9 Pin		RJ Colour
   --------	--------       -------  -------         --------
        2       Orange         1  Blue    1    N/C      Yellow
        3       Black          2  Black   2    TD       Orange
        4       Red            3  Orange  3    RD       Black
        5       Green          4  White   4    RTS      Red
        6       Yellow         5  Brown   5    CTS      Green
        7       Brown          6  Yellow  7    SG       Brown
        8       White          7  Red     8    DCD      White
        20      Blue           8  Green   9    DTR      Blue

SGI Null Modem cable, using rj45 adaptors. Use ONE of these, and ONE of the modem adaptors, above:

     Male		      Female    Male
   DB25 Pin	RJ Colour      DB9 Pin   DB9 Pin		RJ Colour
   --------	--------      -------   -------         --------
	2	Black	      1  White    1		Yellow
	3	Orange	      2  Orange   2		Black
	4	Green	      3  Black    3		Orange
	5	Red   	      4  Blue     4		Green
	6	Yellow	      5  Brown    5		Red
	7	Brown	      6  Yellow   7		Brown
	8	Blue 	      7  Green    8		Blue
	20	White	      8  Red      9		White

MIPS Null modem adaptor, using RJ45 adaptors. Use in conjunction with one of the above two adaptors.

     Male
   DB9 Pin	RJ Colour
   --------	--------
      2		Black
      3		Orange
      5		Brown

Miscellaneous Pinouts

-------------------- --> Crescendo / Cisco FDDI Concentrator RJ45 to DB25 Male:

	DB25	RJ45
	----    ----
	 1       5
	 2	 3
	 3	 6
	 4	 1
	 5	 8
	 6	 7
	 7	 4
        20	 2

Null Ethernet, using standard RJ ethernet cable.
This allows back-to-back twisted pair tranceivers to work. (ie, to connect two systems to each other.)

	Signal	Pin	Pin	Signal
	-----   ---     ---     ------
	 TX +    1      3	RX +
	 TX -    2      6	RX -
	 RX +    3      1	TX +
	 N/C     4	4	N/C
	 N/C	 5	5	N/C
	 RX -	 6	2	TX -
         br	 7	7	br

Another way, counting with tab side down, teeth side up:

    1       Gr      -> O
    2       W/Gr    -> O/W
    3       O       -> G
    6       O/W     -> Gr/W
    7       Br      -> Br

or, more like:

	1	Bl	-> K
	2	O	-> Y
	3	K	-> Bl
	6	Y	-> O

RS232 Loopback connector:

	Pins	Signal
	------  --------
	2 -> 3	td->rd
	3 -> 2	rd->td
	4 -> 6	rts->dsr
	6 -> 4	dsr->rts
	6 -> 20	dsr->dtr
	7 -> 7	sg->sg
	20 -> 6	dtr->dsr

Cisco 4500 DB15 ISDN PRI to RJ45 Male DB15 to RJ45 plug

RJ		DB15
------          -----
Green		2
Yellow		7
Blue		8
Red		9
Black		10
Orange		15

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

citoh connectors (fem db25)
2	o
3	k
7	br
----

PC ATX Power connector:
	+3.3v 1 11 +3.3v and +3.3v Sense +3.3v 2 12 -12v GND 3 13 GND +5v 4 14 PWR_ON GND 5 15 GND +5v 6 16 GND GND 7 17 GND PW_OK 8 18 -5v +5v standby 9 19 +5v +12v 10 20 +5v

PC AT power connector:
	PW_OK 1 +5v 2 +12v 3 -12v 4 GND 5 GND 6 GND 1 GND 2 -5v 3 +5v 4 +5v 5 +5v 6

The Artecon Lynxswitch, aka "IRIS Failsafe" power control box, has two rj45 serial connectors and four rj11 power-relay control connectors. MicroAnnex to Artecon Lynxswitch requires an RJ45 to RJ45 cable. Cross 3 and 5, with 6 straight through:

uAnnex	    Lynxswitch
----------------------
3 TXD		5 RXD
5 RXD		3 TXD
6 GND		6 GND


LynxSwitch Command Syntax

Command	  Port    Response				Acknowledgment 
----------------------------------------------------------------------
^XP^Y	  N/A	  No ports affected			^HG^Y 
^XC0^Y    0	  Power off port 0 from port A,		^RC0 
		  Power off port 4 from port B 
^XC9^Y	  0	  Power off port 0 for 9 sec. - port A	^RC0 
		  Power off port 4 for 9 sec. - port B 
^XC00^Y   0	  Power off port 0		        ^RC0 
^XC01^Y	  1	  Power off port 1			^RC0 
^XC02^Y   0	  Power off port 2			^RC0 
^XC03^Y	  0	  Power off port 3			^RC0 
^XC04^Y   0	  Power off port 4			^RC0 
^XC50^Y	  0	  Power off port 0 for 5 seconds	^RC0 
^XC51^Y   0	  Power off port 1 for 5 seconds	^RC0 
^XC52^Y   0	  Power off port 2 for 5 seconds	^RC0 
^XC93^Y   0	  Power off port 3 for 9 seconds	^RC0 
^XC94^Y   0	  Power off port 4 for 9 seconds	^RC0

Power Cycle Commands: 
^XC [delay in seconds (1 digit only)] [port number 0-4 (optional)] ^Y

Roland 13 Pin Din GKpickup to GRsynth

DIN-13 PINOUT

Pin 1 = String 1
Pin 2 = String 2
Pin 3 = String 3
Pin 4 = String 4
Pin 5 = String 5
Pin 6 = String 6
Pin 7 = mono guitar signal
Pin 8 = synth volume
Pin 9 = no connection
Pin 10 = switch 1
Pin 11 = switch 2
Pin 12 = +7VDC power
Pin 13 = -7VDC power
Sleeve = Ground

FRONT VIEW OF JACK (FEMALE CONECTOR)

4 3 2 1

8 7 6 5

12 11 10 9

13

The shell (sleeve) connection is Ground.

Roland 24-pin socket & cable

The original Roland guitar synths used an extremely proprietary connector for the cable.

And here's the pinout and colour codes for the C24-D cable:

C24-D pin	Signal	Wire colour	GK-2a pin
1	+15V	brown & stripe	12 (+7V)
2	-15V	brown	13 (-7V)
3	GND	orange
4	GND	red & stripe
5	GND	red
6	GND	yellow & stripe
7	n.c.	yellow	9
8	M. VOL	orange & stripe
9	S. VOL	dark green & stripe	8
10	G. VOL	dark green
11	CV1	dark blue & stripe
12	CV2	dark blue
13	CV3	gray
14	CV4	purple & stripe
15	SW1	purple	10
16	SW2	pink & stripe	11
17	n.u. (grounded)	pink
18	G. SIG	gray & stripe	7
19	#1	light green	1
20	#2	black & stripe	2
21	#3	black	3
22	#4	light blue & stripe	4
23	#5	light blue	5
24	#6	light green & stripe

=============================================== --->

MIDI Interface Bus; [Musical Instrument Digital Interface]: defines the electrical and physical interface over a 5-pin
MIDI also defines the protocol used over the interface.

The MIDI interface uses three different pinouts which are all defined on a 5-pin DIN connector; MIDI In, MIDI Out, and MIDI Thru.

5 pin male connector

5-pin DIN connector

**MIDI Pin Out**
Pin No.	IN Signal Name	THRU Signal Name	Out Signal Name
1	No Connect	No Connect	No Connect
2	No Connect	Shield	Shield
3	No Connect	No Connect	No Connect
4	IN+	+5v	+5v
5	IN-	IN	IN