General

Sound Cable Connectors
3-pin XLR - Microphones

PIN	FUNCTION
1	Ground
2	In Phase/Positive signal
3	Out of Phase/Negative signal

5-pin DIN - MIDI

PIN	FUNCTION
1	Not Connected
2	Ground
3	Not Connected
4	Positive - non-inverting
5	Negative - inverting

Jack Plug Stereo
Stereo 0.25" Jack Plug - balanced mono

CONTACT	FUNCTION
Tip	In Phase/Positive signal (hot)
Ring	Out of Phase/Negative signal (cold)
Screen	Ground

Stereo 0.25" Jack Plug - unbalanced mono

CONTACT	FUNCTION
Tip	In Phase/Positive signal (hot)
Ring	Ground
Screen	Ground

Stereo 0.25" Jack Plug - stereo headphones

CONTACT	FUNCTION
Tip	Left
Ring	Right
Screen	Ground

Stereo Insert Jack
Stereo 0.25" Insert Jack Plug

CONTACT	FUNCTION
Tip	Send
Ring	Return
Screen	Ground

EDAC 56-pin 16 channel

CHANNEL	EARTH	COLD	HOT
1	A	E	F
2	L	R	S
3	W	a	b
4	H	B	C
5	T	M	N
6	D	K	J
7	P	V	U
8	Z	d	c
9	p	k	l
10	z	u	v
11	KK	DD	EE
12	w	AA	BB
13	FF	LL	MM
14	t	n	m
15	CC	y	x
16	NN	JJ	HH

EDAC 90-pin 24 channel

CHANNEL	EARTH	COLD	HOT
1	A	B	C
2	H	J	K
3	R	S	T
4	X	Y	Z
5	AE	AF	AH
6	AM	AN	AP
7	BJ	BK	BL
8	BS	BT	BJ
9	BY	BZ	CA
10	CF	CH	CJ
11	CN	CP	CR
12	CW	CX	CY
13	D	E	F
14	M	N	P
15	J	V	W
16	AB	AC	AD
17	AJ	AK	AL
18	AS	AT	AU
19	BN	BP	BR
20	BV	BW	BX
21	CC	CD	CE
22	CK	CL	CM
23	CT	CU	CV
24	CZ	DA	DB

Harting 108-pin 32 channel

CHANNEL	EARTH	COLD	HOT
1	3	2	1
2	21	20	19
3	39	38	37
4	57	56	55
5	75	74	73
6	93	92	91
7	6	5	4
8	24	23	22
9	42	41	40
10	60	59	58
11	78	77	76
12	96	95	94
13	9	8	7
14	27	26	24
15	45	44	43
16	63	62	61
17	81	80	79
18	99	98	97
19	12	11	10
20	30	29	28
21	48	47	46
22	66	65	64
23	84	83	82
24	102	101	100
25	15	14	13
26	33	32	31
27	51	50	49
28	69	68	67
29	87	86	85
30	105	104	103
31	18	17	16
32	36	35	34

Audio cable information
Winning the Wiring Wars

Use balanced connections and good quality cable whenever possible.
Transformer isolate all unbalanced connections from balanced connections.
Use special cable assemblies when unbalanced lines cannot be transformer isolated.
Any unbalanced cable must be kept under ten feet (three meters) in length. Lengths longer than this will amplify all the nasty side effects of unbalanced circuitry's ground loops.
When all else fails, digitize everything with fiber optics and enter a whole new realm of problems.

Multicore colour codes

PAIR	IEC STANDARD		BELDEN STANDARD
PAIR	A-core	B-core	A-core	B-core
1	White	Blue	Black	Red
2	White	Orange	Black	White
3	White	Green	Black	Green
4	White	Brown	Black	Blue
5	White	Grey	Black	Yellow
6	Red	Blue	Black	Brown
7	Red	Orange	Black	Orange
8	Red	Green	Red	White
9	Red	Brown	Red	Green
10	Red	Grey	Red	Blue
11	Black	Blue	Red	Yellow
12	Black	Orange	Red	Brown
13	Black	Green	Red	Orange
14	Black	Brown	Green	White
15	Black	Grey	Green	Blue
16	Yellow	Blue	Green	Yellow
17	Yellow	Orange	Green	Brown
18	Yellow	Green	Green	Orange
19	Yellow	Brown	White	Blue
20	Yellow	Grey	White	Yellow
21	White/Blue	Blue	White	Brown
22	White/Blue	Orange	White	Orange
23	White/Blue	Green	Blue	Yellow
24	White/Blue	Brown	Blue	Brown
25	White/Blue	Grey	Blue	Orange
26	Red/Blue	Blue	Brown	Yellow
27	Red/Blue	Orange	Brown	Orange
28	Red/Blue	Green	Orange	Yellow
29	Red/Blue	Brown	Violet	Orange
30	Red/Blue	Grey	Violet	Red
31	Black/Blue	Blue	Violet	White
32	Black/Blue	Orange	Violet	Dark Green
33	Black/Blue	Green	Violet	Light Blue
34	Black/Blue	Brown	Violet	Yellow
35	Black/Blue	Grey	Violet	Brown
36	Yellow/Blue	Blue	Violet	Black

Adaptor Cable Wiring

Interconnect chart for locating the following correct cable assemblies.