Netmux audio wiring

Information on this page may be out of date or apply to old equipment. Use with caution.

This page aims to track the wiring of various cables within the breakout.

Mux Connection Leads

These are all made up using 8-core screened lead. The screen is connected to ground in all the leads, and carries no signal because all the audio is balanced. There will be a total of two Group 1 cables, two group 2 cables and two output cables needed, one of each for the top (Net) and bottom (Stream) audio muxes. The two right-hand side connectors (seen from the back of the mux) are unused because the system is mono.

Input Group 1

Mux Channel	Source	Pin	Colour
1	Sound Desk +	13	Brown
1	Sound Desk -	12	Yellow
2	??? +	24	Black
2	??? -	23	White
3	OB Input +	10	Purple
3	OB Input -	9	Green
4	??? +	21	Red
4	??? -	20	Blue

For some reason I can't remember what channels 2 and 4 were for, and why it's those numbers which are blank.

Input Group 2

Mux Channel	Source	Pin	Colour
12	Digital +	21	Yellow
12	Digital -	20	Brown
13	Analogue +	7	Green
13	Analogue -	6	Purple
14	Vidserv +	18	White
14	Vidserv -	17	Black
15	Inform +	4	Red
15	Inform -	3	Blue
16	Silence +	15	Wire link
16	Silence -	14	Wire link

Channel 16 is associated with clock and puts silence on air. It has a wire link across the pins inside the D connector and no connection to the outside world.

Output Cable

Mux Output		Pin	Colour
1	+	4	Purple
1	-	3	Green
2	+	15	Red
2	-	14	Blue

Outputs 1 and 2 are the same signal from independent line drivers in the NetMux unit.