30
H
U
I R E F E R E N C E G U I D E
DC voltage
resistor
XLR
jack
TRS
jack
balanced
input
mix stage
(on) LED switch (off)
potentiometer
switch
controller
software control
Trim
Insert
Bal/Unbal Out
Mic Input
+48V
Phantom
Stand-alone
Mic Preamp (1 of 2)
Phones Out
L
R
L
R
L
R
Output 1
Output 2
Output 3/Phones
Dim
Level
Master Volume
(DCA)
Level 1
Level 2
Level 3
Mono
1:1 Discrete
—1—
—2—
—3—
R
L/Mono
L/Mono
L/Mono
R
R
+48V
Phantom
External Talkback
Mic Input
Internal Mic
Trim
External/
Internal
Talkback
Talkback
Assign
Bal/Unbal
Monitor Inputs
Mackie Designs
Human User
Interface (HUI™)
for Digital Audio
Workstations
Block Diagram
Audio Section
v1.0 — 10/97
Input 1
Input 2
Input 3
Bal/Unbal
Monitor Outputs
Trim
Dim
1
2
3
1
2
3
1
2
3
—1—
—2—
—3—
Dim
Assign
Mute
To TB ASG 1
TB ASG 3
TB ASG 2
TB ASG 1
To TB ASG 2
To TB ASG 3
To DIM ASG 1
To DIM ASG 2
To DIM ASG 3
Mute
Assign
To MUTE ASG 1
To MUTE ASG 2
To MUTE ASG 3
MUTE ASG 1
Remote
Talkbk
Trigger
+5V
Right Bus
Left Bus
Mono
Bus
DIM ASG 1
MUTE ASG 2
DIM ASG 2
MUTE ASG 3
DIM ASG 3
HUI BLOCK DIAGRAM
Audio Section
SPECIFICATIONS
