Sonifex RM-MC1L User manual

Manufacturers of audio & video
products for radio & TV broadcasters
Reference Monitor
Controllers
RM-MC1L
Monitor Controller, Single Stereo Input & Output With Light
Control
RM-MC4L
Monitor Controller, 4 Stereo Inputs, 1 Output With Light Control
RM-MC51L
Monitor Controller, 5.1 Stereo Inputs & Outputs With Light
Control
RM-MCL
Monitor Light Controller, 3 Button, TX-STANDBY-REH
HANDBOOK

Reference Monitor Controllers Handbook
This handbook is for use with the following products:
RM-MC1L Monitor Controller, Single Stereo Input & Output With Light Control
RM-MC4L Monitor Controller, 4 Stereo Inputs, 1 Output With Light Control
RM-MC51L Monitor Controller, 5.1 Stereo Inputs & Outputs With Light Control
RM-MCL Monitor Light Controller, 3 Buon, TX-STANDBY-REH
AW10925C
Stock Code: 30-188
Revision 2.03, February 2019
©Sonifex Ltd, 2019
All Rights Reserved
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel: [phone]
Fax: [phone]
Email: [email protected]o.uk
Website: http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent a
commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage
whatsoever arising from the use of information or any error contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, information storage and retrieval systems, for any
purpose other than the purchaser’s personal use, without the express written permission of Sonifex
Ltd. Unless otherwise noted, all names of companies, products and persons contained herein are
part of a completely fictitious adaptation and are designed solely to document the use of Sonifex
product.
Made in the UK by
For the latest Sonifex handbook information please visit the
Sonifex website at www.sonifex.co.uk

Contents & Figures
Contents
Product Warranty - 2 Year i
Sonifex Warranty & Liability Terms & Conditions i
1. Definitions i
2. Warranty i
Unpacking Your Product iii
Repairs & Returns iii
Safety & Installation of Mains Operated Equipment v
Voltage Setting Checks v
Fuse Rating v
Power Cable & Connection v
WEEE Directive vi
RoHS Directive vi
Atmosphere vi
1 Reference Monitor Controllers Introduction 1
2 RM-MC1L Monitor Controller 2
Front Panel Controls & Indicators 3
Power LED 3
Light Control Buttons 3
DIM Button 3
Setting the Brightness of the Front Panel LEDs 4
CUT Button 4
Changing the Button Action From Latching to Momentary or Auto 4
Rear Panel Controls & Connectors 5
DIM Level Adjustment Potentiometer 5
Audio Inputs 5
Audio Outputs 5
Remote Port 5
Mains Power 6
3 RM-MC4L Monitor Controller 7
Front Panel Controls & Indicators 8
Input Select Buttons 8
Rear Panel Controls & Connectors 8
Audio Inputs 8
4 RM-MC51L Monitor Controller 9
Front Panel Controls & Indicators 10
Rear Panel Controls & Connectors 10
Audio Inputs 10
Audio Outputs 10
5 RM-MCL Monitor Controller 11
Front Panel Controls & Indicators 11
Light Control Buttons 11
Rear Panel Controls & Connectors 12
6 Technical Specification 13
Figures
Fig 2-1: RM-MC1L Block Diagram 2
Fig 2-2: RM-MC1L Monitor Controller, Single Stereo Input
& Output With Light Control 3
Fig 2-3: Rear View of RM-MC1L 5
Fig 3-1: RM-MC4L Block Diagram 7
Fig 3-2: RM-MC4L Monitor Controller, 4 Stereo Inputs, 1 Stereo
Output With Light Control 8
Fig 3-3: Rear View of RM-MC4L 8
Fig 4-1: RM-MC51LBlock Diagram 9
Fig 4-2: RM-MC51L Monitor Controller, 5.1 Stereo Inputs
& Outputs With Light Control 10
Fig 4-3: Rear View of RM-MC51L 10
Fig 5-1: RM-MCL Block Diagram 11
Fig 5-2: RM-MCL Monitor Light Controller, 3 Button,
TX-STANDBY-REH 11
Fig 5-3: Rear View of RM-MC1L 12

Warranty Registration
Sonifex Limited 61 Station Road Irthlingborough Northamptonshire NN9 5QE United Kingdom
Tel: [phone] Fax: [phone] Email: [email protected] Internet: www.sonifex.co.uk
Register Online for an
Extended 2 Year Warranty
As standard, Sonifex products are
supplied with a 1 year back to base
warranty.
If you register the product online, you
can increase your product warranty
to 2 years and we can also keep
you informed of any product design
improvements or modifications.
To register your product, please go online to www.sonifex.co.uk/register
Product:
Serial No:

i
Warranty
Product Warranty - 2 Year Extended
As standard, Sonifex products are supplied with a 1 year back to base
warranty. In order to register the date of purchase and so that we can keep
you informed of any product design improvements or modifications, it is
important to complete the warranty registration online. Additionally, if you
register the product on the Sonifex website, you can increase your product
warranty to 2 years. Go to the Sonifex website at: http://www.sonifex.
co.uk/technical/register/index.asp to apply for your 2 year warranty.
Note: For your own records the product serial number is recorded on the
CE certification page of this handbook.
Sonifex Warranty & Liability Terms & Conditions
1. Definitions
‘the Company’ means Sonifex Ltd and where relevant includes companies
within the same group of companies as Sonifex Limited.
‘the Goods’ means the goods or any part thereof supplied by the Company
and where relevant includes: work carried out by the Company on items
supplied by the Purchaser; services supplied by the Company; and software
supplied by the Company.
‘the Purchaser’ means the person or organisation who buys or has agreed
to buy the Goods.
‘the Price’ means the Price of the Goods and any other charges incurred by
the Company in the supply of the Goods.
‘the Warranty Term’ is the length of the product warranty which is usually
12 months from the date of despatch; except when the product has been
registered at the Sonifex website when the Warranty Term is 24 months
from the date of despatch.
‘the Contract’ means the quotation, these Conditions of Sale and any
other document incorporated in a contract between the Company and the
Purchaser.
This is the entire Contract between the parties relating to the subject
matter hereof and may not be changed or terminated except in writing in
accordance with the provisions of this Contract. A reference to the consent,
acknowledgement, authority or agreement of the Company means in
writing and only by a director of the Company.
2. Warranty
a. The Company agrees to repair or (at its discretion) replace Goods
which are found to be defective (fair wear and tear excepted) and
which are returned to the Company within the Warranty Term
provided that each of the following are satisfied:
i. notification of any defect is given to the Company immediately
upon its becoming apparent to the Purchaser;
ii. the Goods have only been operated under normal operating
conditions and have only been subject to normal use (and
in particular the Goods must have been correctly connected
and must not have been subject to high voltage or to ionising
radiation and must not have been used contrary to the
Company’s technical recommendations);
iii. the Goods are returned to the Company’s premises at the
Purchaser’s expense;
iv. any Goods or parts of Goods replaced shall become the
property of the Company;
v. no work whatsoever (other than normal and proper
maintenance) has been carried out to the Goods or any part of
the Goods without the Company’s prior written consent;

ii
Warranty
vi. the defect has not arisen from a design made, furnished or
specified by the Purchaser;
vii. the Goods have been assembled or incorporated into other goods
only in accordance with any instructions issued by the Company;
viii. the defect has not arisen from a design modified by the
Purchaser;
ix. the defect has not arisen from an item manufactured by a person
other than the Company. In respect of any item manufactured
by a person other than the Company, the Purchaser shall only be
entitled to the benefit of any warranty or guarantee provided by
such manufacturer to the Company.
b. In respect of computer software supplied by the Company the Company
does not warrant that the use of the software will be uninterrupted or
error free.
c. The Company accepts liability:
(i) for death or personal injury to the extent that it results from
the negligence of the Company, its employees (whilst in the
course of their employment) or its agents (in the course of the
agency);
(ii) for any breach by the Company of any statutory undertaking
as to title, quiet possession and freedom from encumbrance.
d. Subject to conditions (a) and (c) from the time of despatch of the
Goods from the Company’s premises the Purchaser shall be responsible
for any defect in the Goods or loss, damage, nuisance or interference
whatsoever consequential economic or otherwise or wastage of
material resulting from or caused by or to the Goods. In particular the
Company shall not be liable for any loss of profits or other economic
losses. The Company accordingly excludes all liability for the same.
e. At the request and expense of the Purchaser the Company will test
the Goods to ascertain performance levels and provide a report of
the results of that test. The report will be accurate at the time of the
test, to the best of the belief and knowledge of the Company, and the
Company accepts no liability in respect of its accuracy beyond that set
out in Condition (a).
f. Subject to Condition (e) no representation, condition, warranty or
other term, express or implied (by statute or otherwise) is given by
the Company that the Goods are of any particular quality or standard
or will enable the Purchaser to attain any particular performance
or result, or will be suitable for any particular purpose or use
under specific conditions or will provide any particular capacity,
notwithstanding that the requirement for such performance, result or
capacity or that such particular purpose or conditions may have been
known (or ought to have been known) to the Company, its employees
or agents.
g. (i) To the extent that the Company is held legally liable to the
Purchaser for any single breach of contract, tort, representation
or other act or default, the Company’s liability for the same
shall not exceed the price of the Goods.
(ii) The restriction of liability in Condition (g)(i) shall not apply to any
liability accepted by the Seller in Condition (c).
h. Where the Goods are sold under a consumer transaction (as defined
by the Consumer Transactions (Restrictions on Statements) Order
1976) the statutory rights of the Purchaser are not affected by these
Conditions of Sale.
Unpacking Your Product
Each product is shipped in protective packaging and should be inspected
for damage before use. If there is any transit damage take pictures of the
product packaging and notify the carrier immediately with all the relevant

iii
Repairs & Returns
details of the shipment. Packing materials should be kept for inspection and
also for if the product needs to be returned.
The product is shipped with the following equipment so please check to
ensure that you have all of the items below. If anything is missing, please
contact the supplier of your equipment immediately.
Item Quantity
Product unit 1
IEC mains lead fitted with moulded mains plug 1
Handbook and warranty card 1
GSM stubby antenna 1
If you require a different power lead, please let us know when ordering the
product.
Repairs & Returns
Please contact Sonifex or your supplier if you have any problems with your
Sonifex product. Email [e-mail] for the repair/
upgrade/returns procedure, or for support & questions regarding the
product operation.
Conformity
The products in this manual comply with the essential requirements of the
relevant European health, safety and environmental protection legislation.
The technical justification file for this product is available at Sonifex Ltd.
The declaration of conformity can be found at:
http://www.sonifex.co.uk/declarations
Safety & Installation of Mains
Operated Equipment
There are no user serviceable parts inside the equipment. If you should
ever need to look inside the unit, always disconnect the mains supply
before removing the equipment covers. The cover is connected to earth
by means of the fixing screws. It is essential to maintain this earth/
ground connection to ensure a safe operating environment and provide
electromagnetic shielding.
Voltage Setting Checks
Ensure that the machine operating voltage is correct for your mains power
supply by checking the box in which your product was supplied. The voltage
is shown on the box label. The available voltage settings are 115V, or 230V.
Please note that all products are either switchable between 115V and 230V,
or have a universal power supply.
Fuse Rating
The product is supplied with a single fuse in the live conducting path of the
mains power input. For reasons of safety it is important that the correct
rating and type of fuse is used. Incorrectly rated fuses could present a
possible fire hazard, under equipment fault conditions. The active fuse is
fitted on the outside rear panel of the unit.
Power Cable & Connection
An IEC power connector is supplied with the product which has a moulded
plug attached.
The mains plug or IEC power connector is used as the disconnect device.
The mains plug and IEC power connector shall remain readily operable to
disconnect the apparatus in case of a fault or emergency.
The mains lead is automatically configured for the country that the product
is being sent to, from one of:

iv
CE Certification
Territory Voltage IEC Lead Type Image
UK & Middle East 230V UK 3 pin to IEC lead
Europe 230V European Schuko round 2 pin to
IEC lead
USA, Canada and
South America 115V 3 flat pin to IEC lead
Australia & New
Zealand 230V Australasian 3 flat pin to IEC lead
Connect the equipment in accordance with the connection details and
before applying power to the unit, check that the machine has the correct
operating voltage for your mains power supply.
This apparatus is of a class I construction. It must be connected to a mains
socket outlet with a protective earthing connection.
Important note: If there is an earth/ground terminal on the rear panel of
the product then it must be connected to Earth.
WEEE Directive
The Waste Electrical and Electronic Equipment (WEEE)
Directive was agreed on 13 February 2003, along with the
related Directive 2002/95/EC on Restrictions of the use of
certain Hazardous Substances in electrical and electronic
equipment (RoHS). The Waste Electrical and Electronic Equipment Directive
(WEEE) aims to minimise the impacts of electrical and electronic equipment
on the environment during their life times and when they become waste.
All products manufactured by Sonifex Ltd have the WEEE directive label
placed on the case. Sonifex Ltd will be happy to give you information about
local organisations that can reprocess the product when it reaches its “end
of use”, or alternatively all products that have reached “end of use” can be
returned to Sonifex and will be reprocessed correctly free of charge.
Atmosphere/Environment
This apparatus should be installed in an area that is not subject to excessive
temperature variation (<0°C, >50°C), moisture, dust or vibration.
This apparatus shall not be exposed to dripping or splashing, and no objects
filled with water, such as vases shall be placed on the apparatus.

1
Introduction 1
1 Reference Monitor Controllers Introduction
The Reference Monitor Controllers are a range
of 1U rack-mount audio production control
units, for providing source selection, volume,
DIM and CUT controls for external analogue
monitors, together with light controls for the Sonifex SignalLED range of
studio signs, or similar.
Each of the products has a light control section. This section has 3 buttons:
Transmit (TX), STANDBY and Rehearse (REH). The TX and REH buttons
control opto-isolated outputs on the rear panel remote connector, and
these provide a direct control interface to the Sonifex SignalLED illuminated
studio sign, allowing twin signs to be controlled individually.
The Standby button initiates a 2 minute countdown where the TX and REH
buttons and their associated remote outputs flash alternately. After the 2
minutes has elapsed, the TX output remains on.
The remote port also has open-collector tally outputs for Transmit (TX) and
Rehearse (REH), as well as remote input control for the audio controls DIM
and CUT, and the light controls TX, Standby and REH. There is also a +12VDC
source at 200mA maximum.
The TX, STANDBY and REH buttons can optionally be replaced if you want to
use different buttons for other applications.
There are four Monitor Controller products:
RM-MC1L Monitor Controller, Single Stereo Input
& Output With Light Control
RM-MC4L Monitor Controller, 4 Stereo Inputs,
1 Output With Light Control
RM-MC51L Monitor Controller, 5.1 Stereo Inputs
& Outputs With Light Control
RM-MCL Monitor Light Controller, 3 Button,
TX-STANDBY-REH

2
2 RM-MC1L Monitor Controller
2 RM-MC1L Monitor Controller
The RM-MC1L is a stereo unit with a single stereo balanced analogue input
and output. Useful in a production environment, the unit allows you to
control the audio level to external monitors and to DIM the audio, or CUT
it completely with simple front panel controls, or remote external inputs.
It has a master volume control that adjusts the attenuation on the output
Remote
Port
Mains
Input
Left
Input
Right
Left
Output
Right
Global
Mains
Power
Micro
Controller
Light
Controls
Master
Volume
Control DIM Level
DIM
Control CUT Control
Fig 2-1: RM-MC1L Block Diagram
channels from 0dB down to -86dB. A CUT control mutes the audio outputs
when enabled, whilst a DIM control attenuates the audio output channels
by a pre-set amount from -2dB to -23dB. All of the buttons on the front
panel are illuminated by LEDs and the brightness can be changed to better
suit the environment in which the unit is used.

3
RM-MC1L Monitor Controller 2
Front Panel Controls & Indicators
Fig 2-2: RM-MC1L Monitor Controller, Single Stereo Input & Output With Light Control
Power LED
The power LED illuminates blue whilst power is present within the unit.
If this indicator is not on, the most likely reason is simply the absence of
mains power, but under fault conditions it may also indicate a ruptured
mains fuse or a problem with the internal power supply module.
Light Control Buttons
The three light control buttons; Transmit (TX), Standby and Rehearse (REH)
provide remote controls for the Sonifex SignalLED range of studio signs, or
similar device. The optically isolated drivers and the open-collector tally
outputs associated with the TX and REH buttons are activated whenever
the button LEDs are illuminated.
The TX button can be pressed at any time, regardless of the state of the
other two light controller buttons. If the REH button is active when TX is
pressed, REH will be deactivated. If the Standby countdown is currently
active when TX is pressed, the countdown is cancelled and both the
Standby and REH buttons are deactivated.
The Standby button controls a 2 minute countdown where the TX and REH
buttons and their associated remote outputs flash alternately. To start
the 2 minute Standby countdown, which can only be initiated if the TX
control is currently inactive, simply press the Standby button. The button
will illuminate white to show the countdown is active and the TX and REH
buttons will flash red and blue respectively for 0.5 seconds each. After the 2
minutes has elapsed, the Standby and REH buttons and associated remote
outputs are deactivated while the TX remains on.
The Standby countdown can be cancelled at any time during the 2 minutes
by pressing the Standby button a second time. The TX button will be
deactivated and the REH button will return to the state it was in prior to the
countdown starting.
The REH button can also be pressed at any time, regardless of the state of
the other two light controller buttons. If the TX button is active when REH
is pressed, TX is deactivated. If the Standby countdown is currently active,
the countdown is cancelled and both the TX and Standby buttons are
deactivated.
DIM Button
The DIM button attenuates the audio level at the output by a pre-set
amount from -2dB to -23dB. The attenuation is applied after any level
adjustment made by the master volume control. The DIM level is set
by adjusting the DIM Level potentiometer on the rear panel. The DIM
Light Control Buttons
Power LED Master Volume Control
DIM Button CUT Button

4
2 RM-MC1L Monitor Controller
button has a latching action by default*; press to activate, press again to
deactivate. When the DIM button is active it illuminates yellow. An ‘active
low’ remote input is available for remotely controlling the DIM operation.
Setting the Brightness of the Front Panel LEDs
The DIM button is also used to set the brightness of the LEDs that illuminate
all of the front panel buttons. When power is applied to the unit, all of the
LEDs on the front panel are illuminated for 1 second. During this period,
pressing the DIM button will adjust the LED brightness to one of the three
available levels. Each time the button is pressed, the 1 second timeout
period is restarted. When the required LED brightness level has been set,
simply allow the unit to return to normal operation.
CUT Button
The CUT button mutes the audio at the output. The CUT button has a
latching action by default*; press to activate, press again to deactivate.
When the CUT button is active it illuminates red. An ‘active low’ remote
input is available for remotely controlling the CUT operation.
Changing the Button Action From Latching to Momentary or
Auto *
The standard mode for both DIM and CUT buttons is latching - press to
activate, press again to deactivate. However if required, the mode can be
changed to be either momentary or auto.
In momentary mode the button will only be active when the button is
pressed, (or when the remote signal is active). When the button is released
the button is inactive.
In auto mode if the button is pressed for between 50ms and 250ms it will
latch. If the button is pressed in excess of 250ms and then released the
button will act with momentary function.
To change the current mode of the buttons, the unit should be powered up
whilst holding down the DIM and CUT buttons for 5 seconds. The DIM and
CUT buttons should then start to flash to indicate the current mode i.e:
1 Flash = Auto Mode
2 Flashes = Latching Mode
3 Flashes = Momentary
To change the mode simply press the relevant button to change the number
of flashes.
Once set, hold down the DIM and CUT buttons for 5 seconds again to
confirm changes and exit this mode.

5
RM-MC1L Monitor Controller 2
Rear Panel Controls & Connectors
Fig 2-3: Rear View of RM-MC1L
DIM Level Adjustment Potentiometer
The DIM level potentiometer sets the attenuation applied to audio output
when the DIM button is active. Turn the potentiometer clockwise to
decrease the DIM attenuation level and clockwise to increase it (altering
the audio level by -2dB to -23dB).
Audio Inputs
The single stereo audio input is via two XLR-3 pin socket connectors with
the following pin assignments:
Pin 1: Ground
Pin 2: Phase
Pin 3: Non-phase
Audio Outputs
The single stereo audio output is via two XLR-3 pin plug connectors with the
following pin assignments:
Pin 1: Ground
Pin 2: Phase
Pin 3: Non-phase
Remote Port
The Reference Monitor Controller’s remote port has 2 optically isolated
drivers for the Transmit (TX) and Rehearse (REH) controls that provide a
direct control interface to the Sonifex SignalLED illuminated studio signs.
To drive a SignalLED studio sign from these drivers, the Emitter connection
would typically be connected to 0V and the collector connection would be
connected to one of the active low signalling inputs.
The remote port also provides 2 open-collector tally outputs for Transmit
and Rehearse, and 5 active low inputs to activate the Transmit, Rehearse,
Standby, CUT and DIM controls.
The GPIO port connector is a 15-way female D-type with the following pin
assignments:
XLR Audio Inputs XLR Audio Outputs Remotes Mains Power
DIM Level Potentiometer Fuse

6
2 RM-MC1L Monitor Controller
Pin Function Description
1 Digital Ground 0V
2 TX Output Collector Collector of optically-isolated driver
for TX
3 REH Output Collector Collector of optically-isolated driver
for REH
4 REH Output Tally Open collector driver active when REH
is active
5 STANDBY Remote Input Active low input to trigger STANDBY
6 CUT Remote Input Active low input to trigger CUT
7 Digital Ground 0V
8 Digital Ground 0V
9 TX Output Emitter Emitter of optically-isolated driver for TX
10 TX Output Tally Open collector driver active when
TX is active
11 REH Output Emitter Emitter of optically-isolated driver
for REH
12 TX Remote Input Active low input to trigger TX
13 REH Remote Input Active low input to trigger REH
14 DIM Remote Input Active low input to trigger DIM
15 Fused Power +12VDC @ 200mA max
Mains Power
Mains power is applied via a standard three-pin IEC male socket. Mains
voltages between 85V and 264V AC at frequencies between 47 and 63Hz
are accepted without adjustment.
A 1A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to
ensure safety.

7
RM-MC4L Monitor Controller 3
3 RM-MC4L Monitor Controller
The RM-MC4L has four stereo balanced analogue inputs with a single stereo
balanced output. The RM-MC4L has the same master volume control, CUT,
DIM, light control functions, remote operation and adjustments as the
RM-MC1L unit.
Mains
Input Remote Port
Global
Mains
Power
Micro
Controller
Light
Controls
Left
Input 4
Right
Left
Input 3
Right
Left
Input 2
Right
Left
Input 1
Right
Output
Right
Left
Master
Volume
Control
DIM
Level
DIM
Control CUT Control
Input
Select
Fig 3-1: RM-MC4L Block Diagram

8
3 RM-MC4L Monitor Controller
Front Panel Controls & Indicators
Fig 3-2: RM-MC4L Monitor Controller, 4 Stereo Inputs, 1 Stereo Output With Light
Control
Input Select Buttons
The four input select buttons select which of the four stereo inputs is
routed to the single stereo output. The currently selected input button
illuminates green and the unit defaults to input 1 on power up.
For details of the other RM-MC4L Monitor Controller front panel controls
and indicators, please refer to the RM-MC1L description.
Rear Panel Controls & Connectors
Fig 3-3: Rear View of RM-MC4L
Audio Inputs
The RM-MC4L has four stereo audio inputs via eight XLR-3 pin socket
connectors with the following pin assignments:
Pin 1: Ground
Pin 2: Phase
Pin 3: Non-phase
Power LED Master Volume Control
DIM ButtonLight Control Buttons CUT ButtonInput Select Buttons
For details of the other RM-MC4L Monitor Controller rear panel controls
and connectors, please refer to the RM-MC1L description.
XLR Audio Inputs XLR Audio Outputs Remotes Mains Power
DIM Level Adjustment Fuse

9
RM-MC51L Monitor Controller 4
4 RM-MC51L Monitor Controller
The RM-MC51L is a monitor controller for surround
sound applications with 6 balanced analogue inputs and
6 balanced analogue outputs. It is used in situations
where you need to adjust the volume, or CUT, or DIM all
of the speakers in a 5.1 surround system. Alternatively,
the unit can be used as a global volume control for 6
analogue outputs. The RM-MC51L has the same master
volume control, CUT, DIM and light control functions and
adjustments as the RM-MC1L unit.
Fig 4-1: RM-MC51LBlock Diagram
Remote
Port
Mains
Input
Global
Mains
Power
Micro
Controller
Light
Controls
1-L
Inputs Outputs
2-R
3-C
4-LFE
5-LS
6-RS
1-L
2-R
3-C
4-LFE
5-LS
6-RS
Master
Volume
Control DIM Level
DIM
Control CUT Control

10
4 RM-MC51L Monitor Controller
Front Panel Controls & Indicators
Fig 4-2: RM-MC51L Monitor Controller, 5.1 Stereo Inputs & Outputs With Light Control
For details of the RM-MC51L Monitor Controller front panel controls and
indicators, please refer to the RM-MC1L description.
Rear Panel Controls & Connectors
Fig 4-3: Rear View of RM-MC51L
Each audio input and output on the RM-MC51L is labeled with a channel
number and a corresponding 5.1 channel surround sound channel name.
Audio Inputs
The RM-MC51L has six audio inputs via XLR-3 pin socket connectors with
following pin assignments:
Pin 1: Ground
Pin 2: Phase
Pin 3: Non-phase
Power LED Master Volume Control
DIM ButtonLight Control Buttons CUT Button
XLR Audio Inputs XLR Audio Outputs Remotes Mains Power
DIM Level Adjustment Fuse
Audio Outputs
The six audio outputs are via XLR-3 pin plug connectors with the following
pin assignments:
Pin 1: Ground
Pin 2: Phase
Pin 3: Non-phase
For details of the other RM-MC51L Monitor Controller rear panel controls
and connectors, please refer to the RM-MC1L description.

11
RM-MCL Monitor Controller 5
5 RM-MCL Monitor Controller
The RM-MCL is a simple light controller for controlling a TX - STANDBY - REH
light system in a production studio, as detailed in the RM-MC1L description.
It has no audio inputs or outputs.
Fig 5-1: RM-MCL Block Diagram
Front Panel Controls & Indicators
Fig 5-2: RM-MCL Monitor Light Controller, 3 Button, TX-STANDBY-REH
Light Control Buttons
On the RM-MCL, the Standby button is used to set the brightness of
the LEDs that illuminate all of the front panel buttons. When power is
applied to the unit, all of the LEDs on the front panel are illuminated for
1 second. During this period, pressing the Standby button will adjust the
LED brightness to one of the three available levels. Each time the button is
pressed, the 1 second timeout period is restarted. When the required LED
brightness level has been set, simply allow the unit to return to normal
operation.
For details of the other Light Control button functions on the RM-MCL
Monitor Controller, please refer to the RM-MC1L description.
Remote
Port
Mains
Input
Global
Mains
Power
Micro
Controller
Light
Controls
Power LED
Light Control Buttons

12
5 RM-MCL Monitor Controller
Rear Panel Controls & Connectors
Fig 5-3: Rear View of RM-MC1L
For details of the RM-MCL Monitor Controller rear panel connectors, please
refer to the RM-MC1L description.
Remotes Mains Power
Fuse