ALLEN & HEATH ML4000 User manual

Publication AP4373 issue 2
USER GUIDE
Expander Sidecar

2ML4000 Sidecar User Guide
Introduction
The Allen & Heath ML4000-24SC Sidecar is the 24 mono input channel expander for the
ML4000 console. It is free standing and does not need to be mechanically fixed to the
main console. Interconnection is by means of multiway cables to link the audio signals
and control logic. It is supplied with its own power supply unit independent of the
console. The input channel strip is identical to the main console with all functions
available. The groups and snapshots are controlled from the main console. Up to two
gooseneck lamps (part AL4061) may be plugged into the rear of the meterbridge.
Note: This sidecar may be used with the ML4000 only. It is not suitable for use with
other consoles or as a stand alone console. One or two sidecars may be connected
allowing a maximum 96 input channels. Do not connect more than two sidecars.
Before Starting
Check that the following items have been supplied with each sidecar:
1x MPS14 Power Supply Unit with User Guide MPS14/n
1x Mains cord with moulded plug suitable for your local supply n = volts
1x DC power cable 2.8 metres long 002-583
2x 37way Audio Cables 2.8 metres long 002-617
1x 9way Logic Cable 2.8 metres long AL4155
Read and heed the Important Safety Instructions printed at the start of the ML4000
console user guide (AP4314) and MPS14 power supply user guide (AP3898).
Connecting the Sidecar to the Console
Diagram 1 shows the cable routing for connecting the sidecars to the ML4000. Refer to
Diagram 2 for connecting one sidecar. Refer to Diagram 3 for connecting two sidecars.
Connect the two audio OUTPUT connectors 1 to the main console EXPANDER INPUT
using the two 37way 1 to 1 shielded cables provided. We recommend that you label the
cables A and B to avoid them being swapped if replugged. If you are connecting a
second sidecar plug its OUTPUT into the first sidecar INPUT connectors 2 . Plug the
LOGIC connector 3 into the main console LOGIC connector 1 for one sidecar, or 1 and
2 for two sidecars. Plug the power supply DC cable into connector 5 .
Note: To maintain correct channel assignment do not reverse the interconnecting
cables. Make sure the cable plug locking screws are correctly tightened.
Turning the Console On and Off
Make sure the DC power cables and audio and logic interconnecting cables are correctly
plugged in and locked. Turn all power supplies on or off together. Alternatively, turn the
sidecar supplies on first followed by the main console, and turn the console off first
followed by the sidecars. Do not turn off any supply during normal console operation.
Note: For normal console operation make sure the rear panel RS232 switch 4 is set to
its NORMAL position. It will not function correctly if left in its RS232 position.

ML4000 Sidecar User Guide 3
PAD
OO
8
VCA
GROUP 30
40
5
6
7
10
20
1
2
3
4
0
5
-6
SIG
10
5
PAFL
0
+6
PK
SAFE/EDIT
MUTE
PAN
RL
=
LR C
2
N
BLEND
12
OO
=
+
N
A
P
LCR
+6
MAIN
MIX
OO
OO
V
E
L
AUX
AUX
11 11-12
+6
STEREO
PRE
+6
9-10
9
OO
A
P
V
E
L
AUX
10
+6
PRE
8
OO
AUX
AUX PRE
STEREO
+6
GROUPS
OO
OO
7
AUX
+6
+6
OO
5
6
AUX
AUX
+6
4
OO
OO
AUX
+6
+6
OO
3
AUX
+6
LF
1
OO
AUX
AUX
PRE
+6
-15 +15
EQ IN
LM
90
-15
50
20Hz
+15
130
200Hz
-15
80
35Hz
45
180 +15
300
Q
1k
450
5k1k
500Hz
700 7k
15k
Q
HM
2kHz
-15 3k
20kHz HF
+15
GAIN
7k
3k
20Hz
30
10k
IN
300
400
60
20
10- 10
100
50
20dB
40
40
+ 48V
24
INPUT LOGIC
ML5000
AB 1
POWER
MAIN CONSOLE
INPUT 1 OUTPUT2OUTPUT INPUT
CONNECTING ONE SIDECAR
INPUT LOGIC
ML5000
AB 1
POWER
MAIN CONSOLE
CONNECTING TWO SIDECARS
2
Diagram 1
Diagram 2
Diagram 3

4ML4000 Sidecar User Guide
Combining Power Supplies for Backup
If you are connecting two sidecars then you can link the power supplies together for
redundant supply backup. One MPS14 supply is capable of running both sidecars
together should the other fail. You need to order the short 0.7 meter DC power cable
(part 002-584) for linking.
Note: Do not link the main console power supply to the sidecar supply in this way. One
supply is not capable of running both the main console and its sidecar should the other
fail. You should order a spare power supply with your console in this case. Make sure
the power supplies are positioned next to each other and use the same mains feed.
RS232 Code Update
A rear panel RS232 port is provided. This is used for loading new operating software into
the sidecar from a PC. It is not used for any other function. Check our Web site
www.allen-heath.com for details on the latest version of ML4000 operating software and
instructions on loading it into the console.
Note: The sidecar settings are archived using a MIDI or RS232 dump from the main
console. There is no need to archive the sidecar settings separately.
Important ! The sidecars and console must run the same version of operating
software. Check the web site for the latest version.
Audio Connections
The following information is
provided for reference only.
It is not necessary to wire
special cables to connect
the sidecar to the console.
Standard 1 to 1 wired
37way cables are provided.
The audio signals are
balanced and operate at a
nominal –2dBu line level.
Allen&Heath Limited Made in the United Kingdom.
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK http://www.allen-heath.com
130
781
282
HEADPHONES SOCKET
UNDER ARMREST LAMP SOCKETS
Width 831mm
Weight 40kg
BA
13 GRP 4+ 12 AUX 1+ 11 AUX 2+ 10 AUX 3+ 9 AUX 4+ 8 AUX 5+ 7 AUX 6+ 6 PFL+ 5 AFL+ 4 nc 3 PFL DC 2 AFL DC 1 0V (PAFL)
GRP 4- 32
AUX 1- 31
AUX 2- 30
AUX 3- 29
AUX 4- 28
AUX 5- 27
AUX 6- 26
PFL- 25
AFL- 24
nc 23
nc 22
nc 21
nc 20
14 GRP 3+ 15 GRP 2+ 16 GRP 1+ 17 R+ 18 L+ 19 0V (CHS)
GRP 3- 33 GRP 2- 34 GRP 1- 35
R- 36
L- 37
13 GRP 8+ 12 AUX 7+ 11 AUX 8+ 10 AUX 9+ 9 AUX 10+ 8 nc 7 nc 6 nc 5 nc
GRP 8- 32
AUX 7- 31
AUX 8- 30
AUX 9- 29
AUX 10- 28
AUX 11- 27
AUX 11+ 26
AUX 12- 25
AUX 12+ 24
14 GRP 7+ 15 GRP 6+ 16 GRP 5+ 17 AFL L+ 18 C+ 19 0V (CHS)
GRP 7- 33 GRP 6- 34
GRP 5- 35
AFL L- 36
C- 37
nc 23 nc 22 nc 21 nc 20
4 nc 3 nc 2 nc 1 nc
g