Euphonix MC524 User manual

Euphonix MC524
Monitor Interface Operation Manual
Document Revision: 2.0
Release Date: April, 2003
Part Number: 840-07521-02
Euphonix, Inc.
220 Portage Ave.
Palo Alto, California 94306
Phone: [phone]
Fax: [phone]
Web: http://www.euphonix.com
e-mail: [e-mail]
MONITOR-COMMS INTERFACE
MC
524

In the interest of continued product development, Euphonix Inc. reserves the right to make
improvements in this manual and the products it describes at any time, without notice or
obligation.
System 5, S5, Max Air, PatchNet, eMix, EuCon, R-1, Audio Deck, Studio Hub are trademarks
of Euphonix, Inc.
©2002 Euphonix, Inc. All rights reserved worldwide. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form by any means without written permission from Euphonix, Inc.

IMPORTANT SAFETY INSTRUCTIONS
The lighting flash with arrowhead symbol within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of electrical shock to persons.
The exclamation point within an equilateral triangle, is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the literature
accompanying the product.
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with a dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wider blade or the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use caution when moving the cart/apparatus combi-
nation to avoid injury from tip-over.

13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15) WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE.
16) Do not expose this equipment to dripping or splashing and ensure that no objects filled with
liquids, such as vases, are placed on the equipment.
17) To completely disconnect this equipment from the AC Mains, disconnect the power supply
cord plug from the AC receptacle.
18) The mains plug of the power supply cord shall remain readily operable.
19) This unit is provided with a power supply cord set suitable for 120V AC input only (for U.S.A.
and Canada). For other than U.S.A. and Canada, a qualified person must provide for use with
this unit, an appropriate, approved power supply cord set which is in compliance with the end
use country requirements and has a minimum cross-sectional area of 1.0mm2.
20) For units with more than one power cord:
Caution: This unit has more than one power supply cord. Disconnect two power supply
cords before servicing to avoid electrical shock.
Attention: Cet appareil comporte plus d’un cordon d’alimentation. Afin de prévenir les
chocs électriques, débrancher les deux cordons d’alimentation avant de faire le
dépannage.
21) Operator Accessible Fuse:
Caution: For continued protection against risk of fire, replace only with same type and
rating of fuse.
Attention: Pour ne pas compromettre la protection contre les risques d’incendie, remplacer
par un fusible de même type et de même caractéristiques nominales.

Euphonix MC524 Monitor Interface Operation Manual
v
Table of Contents
List of Figures ....................................................................................................................... vi
List of Tables ........................................................................................................................ vii
Overview...............................................................................................................8
Features .................................................................................................................8
Mic Inputs..................................................................................................8
Line Inputs.................................................................................................8
Line Outputs ..............................................................................................8
Applications ..........................................................................................................8
Front Panel ............................................................................................................9
Rear Panel ...........................................................................................................10
Specifications......................................................................................................11
Phantom Power: 48 V Jumper Settings ...................................................13
User Reference....................................................................................................14
Standard Configuration ...........................................................................14
Input/Output Connections .......................................................................17
Optional Configurations ..........................................................................22

Euphonix MC524 Monitor Interface Operation Manual
vi
List of Figures
1 MC524 Front Panel .............................................................................................................9
2 MC524 Rear Panel ............................................................................................................10
3 Pins to set Phantom Power ................................................................................................13
4 MC524 Standard Cable Diagram ......................................................................................14
5 MC524 Standard Configuration ........................................................................................16
6 Elco 38 Connector ............................................................................................................17
7 Elco 90 Connector ............................................................................................................18
8 Elco 90 Connector ............................................................................................................19
9 Elco 90 Connector ............................................................................................................20
10 DB-25 Connector ..............................................................................................................21
11 Monitor Output Patch Cable Diagram ..............................................................................22
12 Monitor Output Patch Configuration ................................................................................23
13 Monitor Insert Patch Cable Diagram ................................................................................24
14 Monitor Insert Patch Configuration ..................................................................................25
15 Rear View of Elco Male 38-pin Connector (Insert pins from this side) ...........................26

Euphonix MC524 Monitor Interface Operation Manual
vii
List of Tables
1 MC524 Performance Specifications .............................................................................. 11
2 MC524 Environmental and Power Specifications ......................................................... 12
3 MC524 Physical Dimensions ......................................................................................... 12
4 Upper and Lower Board Jumper Mappings ................................................................... 13
5 MC524 Standard Cable Specification ............................................................................ 15
6 In 1 Elco 38 Pinout ........................................................................................................ 17
7 In 2 Elco 90 Pinout ........................................................................................................ 18
8 Out 1 Elco 90 Pinout ...................................................................................................... 19
9 Out 2 Elco 90 Pinout ...................................................................................................... 20
10 Out 3 DB-25 Pinout ....................................................................................................... 21
11 Monitor Output Patch Cable Specifications .................................................................. 22
12 Monitor Insert Patch Cable Specification ...................................................................... 24
13 Tie Line Patch Elco 38 Pinout ....................................................................................... 26

Euphonix MC524 Monitor Interface Operation Manual
8
Overview
The MC524 Monitor Interface centralizes control room monitor and communication
signals in one box and places them under remote control by the system operator. The
MC524 is a digitally controlled analog signal router and level control device with a built
in Talk Back microphone circuit in a 2RU enclosure.
The MC524 receives the 22 monitor busses and two solo busses from the System 5
monitor matrix output and provides a control room output to three speaker sets, four
SLS/Cue monitor outputs as well as post preamp talk and listen mic outputs.
The SC253i Interface Pilot digitally controls the MC524 over a 15-pin control cable with
a maximum length 100 m. The system operator can control all MC524 parameters from
the System 5 control surface. There is only one MC524 in a System 5 configuration.
Features
Mic Inputs
Mic level inputs are provided for four Listen and two Talk mics on a 38-pin Elco con-
nector. An analog gain stage provides boost or attenuation for mic level signals. Talk
Back mic inputs include phantom power and a compressor.
Line Inputs
There are 24 line level inputs for Control Room feeds, Monitor A–D, and Solo. Line
level inputs have attenuation only.
Line Outputs
Line outputs are on 90-pin Elco connectors for eight Monitor A (up to 7.1 monitoring),
two each for Monitor B–D, eight Control Room Main (up to 7.1 monitoring), six Con-
trol Room Alt 1 (up to 5.1 monitoring), two Control Room Alt 2, four Listen preamp,
two Talk preamp out, and two Solo outputs.
All cabling is provided from the digital input to the final user connections of the output
patchbay. See the cabling diagrams in the User Reference section.
Applications
The MC524 allows the System 5 engineer to adjust all Control Room communications
(Level Control, Cut, Dim and speaker selection) from the console Center Section. We
recommend installing the MC524 in the Control Room.

Euphonix MC524 Monitor Interface Operation Manual
9
Front Panel
Figure 1 MC524 Front Panel
Power Switch: The power switch turns the unit on/off.
Since the MC524 is digitally controlled via software, the power switch is the only front
panel control.
MONITOR-COMMS INTERFACE
MC
524

Euphonix MC524 Monitor Interface Operation Manual
10
Rear Panel
Figure 2 MC524 Rear Panel
In 1 (38-pin Elco): Talk Back, Listen Back and Mic inputs. This connector receives
four stereo listen channels and two stereo talk mic inputs. All signals input at this port
can be level boosted or attenuated. In standard patch configuration, input cable fans out
to 12 XLR females.
In 2 (90-pin Elco): Control Room Busses, Monitor A, B, C, D, and Solo busses inputs.
This connector receives eight Monitor A channels, and two each channels for Monitor
B, C, D. Signals input at this port can only be level attenuated. In standard configuration
these signals are fed from the AM713 converter.
Out 1 (90-pin Elco): Monitor A, B, C, D Speaker outputs. This connector outputs eight
Control Room channels, eight Monitor A channels, and two each channels for Monitor
B, C, D, and Solo. The output cable fans out to two 38-pin Elco connectors for the Eu-
phonix Patchbay.
Out 2 (90-pin Elco): This connector outputs eight Control Room Main channels, six
Control Room Alt 1 channels, two Control Room Alt 2 channels, four Listen pre, two
talk pre and two Solo channels. The output cable fans out to two 38-pin Elco connectors
for the Euphonix Patchbay.
Out 3 (DB-25 female): This connector outputs four Listen pre, two Talk Back pre, and
two Solo channels, eight Monitor A channels, and two channels each for Monitor B, C,
D, and Solo. The output cable fans out to eight male XLR connectors.
Control (DB-15): Input for digital control signal from Digital Pilot. Signal format is
Euphonix TCC bi-directional serial protocol. All patching, switching, and gain controls
are communicated via this connection as well as MC524 IP address.
AC Line In (IEC) and Fuse Tray: The power connector accepts standard IEC power
cords. 110, 220, or 240 VAC, 50/60 Hz can be applied at this connector.

Euphonix MC524 Monitor Interface Operation Manual
11
Specifications
Table 1 MC524 Performance Specifications
Main Inputs Solo, CR 7, Mon A, B, C, D
Description Electronically balanced, transformerless, differential input
Gain Variable from 0 dB (unity) to -72 dB
Optimum Input Levels Set to 0 dBFS = +27 dBU. Designed to be fed from Euphonix MA703 DAC.
Maximum Input Level Before Clipping +28 dBU (sine wave)
Maximum Input Voltages ±16 VDC, ±25 VAC (common mode), ±50 VAC (differential)
Input impedance 10 kΩ±10% each leg, 20 Hz – 20 kHz
CMRR >40 dB (50 dB typical), 20 Hz – 20 kHz
Talk Back And Listen Mic Inputs T1, T2, L1–L4
Description Electronically balanced, transformerless, differential input with automatic level
optimization
Gain AGC circuit optimizes front end gain to produce approx. +8 dBU signal; this is
variable from +8 to -64 dBU at the monitor outputs
Maximum Input Level Before Clipping 10 dBU (sine wave)
Maximum Input Voltages ±50 VDC, ±2.5 VAC (common mode), ±5 VAC (differential)
Phantom Power 48 V available, link selectable on PCB
Frequency Response Attenuated LF and HF response, -3 dB at 200 Hz and 10 kHz
Monitor Outputs
Description Electronically balanced and floating, differential output
Maximum Output Level +28 dBU (sine wave)
Output Impedance 100 Ω±10%, balanced or unbalanced, 20 Hz – 20 kHz
DC Offset < ±5 mV with respect to chassis GND
Full Signal Path Main Input To Monitor Output
Frequency Response 0/-0.4 dB, 20 Hz – 20 kHz (ref. 1 kHz)
Signal Breakthrough with Full Cut <-110 dB, 20 Hz – 20 kHz
Distortion <0.005%, 20 Hz – 20 kHz, +15 dBU output level
Crosstalk < -100 dB at 1 kHz; < -90 dB at 20 kHz
Output Noise <-90 dBU RMS (unweighted); >117 dB of dynamic range at unity gain

Euphonix MC524 Monitor Interface Operation Manual
12
Table 2 MC524 Environmental and Power Specifications
Table 3 MC524 Physical Dimensions
Leave about six inches behind the MC524 for cable connections.
Operating Temperature 5–35°C
Power Requirements 90–240 VAC, 50/60Hz
Power Consumption 70 W
Height 3.5 inches
Width 19 inches
Depth 18.6 inches
Weight 17 lb

Euphonix MC524 Monitor Interface Operation Manual
13
Phantom Power: 48 V Jumper Settings
Phantom power is enabled by fitting the link to short pins 1 and 2. If not required (i.e.,
using a dynamic mic) then it should be set to short pins 2 and 3. Pin 1 position can be
ascertained by looking for the square pad on the solder side.
Figure 3 Pins to set Phantom Power
Note that the standard Talk Back mic on the console (wired to T1) is a condenser type
which requires phantom power. Table 4 shows the mapping of the jumpers:
Table 4 Upper and Lower Board Jumper Mappings
Upper Board Lower Board
J1 Talkback 1 (T1) J1 Listen 2 (L2)
J2 Talkback 2 (T2) J2 Listen 3 (L3)
J3 Listen 1 (L1) J3 Listen 4 (L4)

Euphonix MC524 Monitor Interface Operation Manual
14
User Reference
Standard Configuration
Figure 4 MC524 Standard Cable Diagram
The standard lengths specified in Table 5 are supplied so the monitor interface can be
located in the control room. Custom lengths are available and cable kits must be ordered
separately.
5
2 1
B
4
recommended locations
3
MA703
ADigital Core
B
MC524
Use relative locations to
determine cable lengths
Control Room
B
Machine Room
A
12
5
4
7,8
7
6

Euphonix MC524 Monitor Interface Operation Manual
15
Table 5 MC524 Standard Cable Specification
Cable Qty Description 10M Part # 20M Part# Length
Accessory cable kits by special
order 936-07084-01 936-07156-01
11MADI Output: RG59 75 Ωcoax 032-07230-00 032-07306-00
21
AES/EBU Sync:
one male XLR <> one female XLR 030-07085-01 030-07153-01
31
TCC Control from 253i Interface
Pilot 030-06983-01 030-06985-01
41
TB/LB Mic:
one male Elco 38 <> 12 female XLR 030-06919-01 2 m
51
CR/Mon/Solo Bus:
one male Elco 90 <> 24 female XLR 030-07225-01 1 m
61
TB and LB Mic Pre Out:
one DB-25 <> eight male XLR 032-07038-00 3 m
7 2 Elco 90-pin Connector w/hood 100-07470-00 NA
8 180 Elco Crimp Pins 100-02100-00 NA

Euphonix MC524 Monitor Interface Operation Manual
16
Figure 5 MC524 Standard Configuration
8 - Control Room
8 - Mon A
2 - Mon B
2 - Mon C
2 - Mon D
2 - Solo
12XLRF<>1xEM38
4 Listen &
2 Talk Mic inputs
2 - Solo out
2 - Talk pre out
4 - Listen pre out
8 - CR Main out
6-CRAlt1out
2-CRAlt2out
8 - Mon A
2 - Mon B
2 - Mon C
2 - Mon D
8xXLRM to DB25
Control from Digital
Interface Pilot
24XLRFto 1xEM90
Monitor bus outs
from MA703
3
4
6
5
2 - TB pre out
4 - Listen pre out
2 - Solo out
(TB1 returns to
core for slate)
MADI in from Core
1
AES/EBU Sync In
from Studio Hub
2
MA703 DIGITAL
OUTPUTS
ANALOG
OUTPUTS
MADI
IN
2
1
Connectors and pins provided
7, 8

Euphonix MC524 Monitor Interface Operation Manual
17
Input/Output Connections
Table 6 In 1 Elco 38 Pinout
Figure 6 Elco 38 Connector
Crk # Designator 24 X 32 High Low Gnd
1M1 Talk1 AEL
2M2 Talk2 BFM
3M3 Listen1CHN
4M4 Listen2DJP
5M5 Listen3DDJJPP
6M6 Listen4EEKKRR
7FFLLSS
8HHMMTT
9RSV
10 T U W
11 X Z AA
12 Y BB CC
ABC D
LMNP
J
EFH K
T
RS
V
U
W
XY
ZA
A
B
B
C
C
D
D
E
E
F
F
H
H
J
J
K
K
L
L
M
M
N
N
P
P
R
R
S
S
T
T

Euphonix MC524 Monitor Interface Operation Manual
18
Table 7 In 2 Elco 90 Pinout
Figure 7 Elco 90 Connector
Crk # Designator 24 X 32 High Low Gnd
1L3 CntrlRm(L)AHR
2L4 CntrlRm(C)BJS
3L5 CntrlRm(R)CKT
4L6 CntrlRm(Sl)DLU
5 L7 Cntrl Rm (Sr) E M V
6L8 CntrlRm(B)FNW
7L9 CntrlRm(Li)XAEAM
8 L10 Cntrl Rm (Ri) Y AF AN
9 L11 Mon A (L) Z AH AP
10 L12 Mon A (C) AA AJ AR
11 L13 Mon A (R) AB AK AS
12 L14 Mon A (Sl) AC AL AT
13 L15 Mon A (Sr) BJ BS BY
14 L16 Mon A (B) BK BT BZ
15 L17 Mon A (Li) BL BU CA
16 L18 Mon A (Ri) BM BV CB
17 L19 Mon B (L) BN BW CC
18 L20 Mon B (R) BP BX CD
19 L21 Mon C (L) CF CN CW
20 L22 Mon C (R) CH CP CX
21 L23 Mon D (L) CJ CR CY
22 L24 Mon D (R) CK CS CZ
23 L1 Solo (L) CL CT DA
24 L2 Solo (R) CM CU BD
ABCDEF
A
E
A
F
A
H
A
J
A
K
A
L
A
U
A
M
A
N
A
P
A
R
A
S
A
T
A
V
A
W
A
X
A
Y
B
C
A
Z
B
A
B
B
C
E
B
Y
B
Z
C
A
C
B
C
C
C
D
B
D
B
E
B
F
B
H
B
S
S
T
B
U
B
V
B
W
B
X
B
R
B
J
B
K
B
L
B
M
B
N
B
P
C
F
C
H
C
J
C
K
C
L
C
M
C
W
C
X
C
Y
C
Z
D
A
D
B
C
U
C
N
C
P
C
R
C
S
C
T
C
U
P
HJKLMN
RSTUVW
A
D
XYZA
A
A
B
A
C

Euphonix MC524 Monitor Interface Operation Manual
19
Table 8 Out 1 Elco 90 Pinout
Figure 8 Elco 90 Connector
Crk # Designator 24 X 32 High Low Gnd
1BO11 MonA(L)AHR
2BO12 MonA(C)BJS
3BO17 MonA(R)CKT
4BO18 MonA(Sl)DLU
5 BO19 Mon A (Sr) E M V
6BO20 MonA(B)FNW
7BO21 MonA(Li)XAEAM
8BO22 MonA(Ri)YAFAN
9 BO23 Mon B (L) Z AH AP
10 BO24 Mon B (R) AA AJ AR
11 BO25 Mon C (L) AB AK AS
12 BO26 Mon C (R) AC AL AT
13 BO27 Mon D (L) BJ BS BY
14 BO28 Mon D (R) BK BT BZ
15 BL BU CA
16 BM BV CB
17 BN BW CC
18 BP BX CD
19 CF CN CW
20 CH CP CX
21 CJ CR CY
22 CK CS CZ
23 CL CT DA
24 CM CU BD
ABCDEF
A
E
A
F
A
H
A
J
A
K
A
L
A
U
A
M
A
N
A
P
A
R
A
S
A
T
A
V
A
W
A
X
A
Y
B
C
A
Z
B
A
B
B
C
E
B
Y
B
Z
C
A
C
B
C
C
C
D
B
D
B
E
B
F
B
H
B
S
S
T
B
U
B
V
B
W
B
X
B
R
B
J
B
K
B
L
B
M
B
N
B
P
C
F
C
H
C
J
C
K
C
L
C
M
C
W
C
X
C
Y
C
Z
D
A
D
B
C
U
C
N
C
P
C
R
C
S
C
T
C
U
P
HJKLMN
RSTUVW
A
D
XYZA
A
A
B
A
C

Euphonix MC524 Monitor Interface Operation Manual
20
Table 9 Out 2 Elco 90 Pinout
Figure 9 Elco 90 Connector
Crk # Designator 24 X 32 High Low Gnd
1BO31 SoloL AHR
2BO32 SoloR BJS
3TL1 Talk1 CKT
4TL2 Talk2 DLU
5 TL3 Listen 1 E M V
6 TL4 Listen 2 F N W
7 TL5 Listen 3 X AE AM
8 TL6 Listen 4 Y AF AN
9 BO3 CR main (L) Z AH AP
10 BO4 CR main (C) AA AJ AR
11 BO5 CR main (R) AB AK AS
12 BO6 Cntrl Rm (Sl) AC AL AT
13 BO7 Cntrl Rm (Sr) BJ BS BY
14 BO8 CR main (B) BK BT BZ
15 BO9 CR main (Li) BL BU CA
16 BO10 CR main (Ri) BM BV CB
17 BO13 CR Alt 1 (L) BN BW CC
18 BO14 CR Alt 1 (C) BP BX CD
19 BO15 CR Alt 1 (R) CF CN CW
20 BO16 CR Alt 1 (Sl) CH CP CX
21 BO29 CR Alt 1 (Sr) CJ CR CY
22 BO30 CR Alt 1 (B) CK CS CZ
23 BO1 CR Alt 2 (L) CL CT DA
24 BO2 CR Alt 2(R) CM CU BD
ABCDEF
A
E
A
F
A
H
A
J
A
K
A
L
A
U
A
M
A
N
A
P
A
R
A
S
A
T
A
V
A
W
A
X
A
Y
B
C
A
Z
B
A
B
B
C
E
B
Y
B
Z
C
A
C
B
C
C
C
D
B
D
B
E
B
F
B
H
B
S
S
T
B
U
B
V
B
W
B
X
B
R
B
J
B
K
B
L
B
M
B
N
B
P
C
F
C
H
C
J
C
K
C
L
C
M
C
W
C
X
C
Y
C
Z
D
A
D
B
C
U
C
N
C
P
C
R
C
S
C
T
C
U
P
HJKLMN
RSTUVW
A
D
XYZA
A
A
B
A
C