Smproaudio jackaroo, Jackaroo pin configurations, Xlr 3-pin – SM Pro Audio Jackaroo: The-Test-Everything-Unit User Manual
Page 7: Midi connector, Speakon connector

JACKAROO PIN CONfigurations
Below is a general guide to common pin configurations, which you may find useful
when testing cables.
SMPROAUDIO
JACKAROO
Application
1
2
3
Notes
Canford Talkback backbone
earth/screen
+24V DC
audio
D54
screen
no
connection
analogue
multiplex
DMX
screen
data -
data +
this is not an official standard: see esp.
Martin!!!
High End Systems intelligent
fixtures control
ground
data -
data +
Loudspeakers
Martin intelligent fixtures control
(old)
screen
data +
data -
this is not the same as 3-pin DMX!
Martin intelligent fixtures control
(new)
screen
data -
data +
Martin have now changed to be pin
compatible with 3-pin DMX
Martin smoke machine control
Microphones (Europe standard)
screen
signal +
signal -
Microphones (US standard)
Microplex
common
+15 VDC
data
XLR 3-Pin
MIDI Connector
Only pins 4 and 5 are normally used.
1+ Positive Carries the positive Channel 1 signal from the amp to the speaker
1- Negitive Carries the negative Channel 1 from the amplifier to the speaker
2+ Positive Carries the second positive (Ch. 2) signal from the amp to the speaker
2- Negative Carries the second negative (Ch. 2) signal from the speaker to the amp
SPEAKON Connector