ASL INTERCOM RRM02 User manual

RRM02
Remote Radio Microphone Receiver
ASL Document Ref.: U-0464-0589.doc
Issue: 03 complete, approved - Date: 16/08/10
Part Number: M0464_155
Product Manual

RRM02 - Product Manual
Copyright © 2008 Application Solutions (Safety and Security) Limited
Application Solutions (Safety and Security) Limited
Unit 17 Cliffe Industrial Estate
Lewes - East Sussex
BN8 6JL - UK
Tel: [phone] Fax: [phone]
www.asl-control.co.uk
All rights reserved.
Information contained in this document is believed to be accurate, however no representation or warranty is given and
Application Solutions (Safety and Security) Limited assumes no liability with respect to the accuracy of such information.
Issue: 02 complete, approved
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This equipment is designed and manufactured to conform to the following EC standards:
EMC: EN 55103-1:1997, EN 55103-2:1997, EN 50121-4:2006, ENV 50204:1996
Safety: EN 60065:2002
Failure to use the equipment in the manner described in the product literature will
invalidate the warranty.
A ‘Declaration of Conformity’ statement to the above standards, and a list of auxiliary
equipment used for compliance verification, is available on request.
This product must be disposed of in accordance with the WEEE directive.

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Contents
1Description ............................................................................................................................................... 5
2Indicators .................................................................................................................................................. 6
3Installation ................................................................................................................................................ 7
3.1 Main Components ...................................................................................................................... 7
3.2 Installation Requirement............................................................................................................. 8
3.2.1 Equipment and Tool Requirements .................................................................................... 8
3.2.2 Cabling Requirements ........................................................................................................ 9
3.2.2.1 Cabling for Serial Data and Audio Connection to an ASL VAR Router, DAU, or ACU
Microphone Input ........................................................................................................ 9
3.2.2.2 Cabling for Relay PTT and Audio Connection to an ASL or Other PA System .......... 9
3.2.2.3 Antenna Cabling........................................................................................................ 10
3.3 Installation Procedure............................................................................................................... 12
4Connections ........................................................................................................................................... 20
4.1 DIN Rail and Relay Terminal Allocation ................................................................................... 20
4.2 Antenna Connection ................................................................................................................. 21
4.3 Connection to ASL PA/VA Systems ......................................................................................... 22
4.3.1 Connection of a Single RRM02 Unit ................................................................................. 22
4.3.1.1 Serial Data and Audio Connection to a VAR Router Microphone Input ................... 22
4.3.1.2 Serial Data and Audio Connection to an Intellevac DAU or ACU’s
Microphone Input ...................................................................................................... 23
4.3.2 Connection of Multiple RRM02 Units for Single Audio Zone Group................................. 24
4.3.2.1 Multiple RRM02 Units on One Zone (Without Chime) .............................................. 24
4.3.2.2 Multiple RRM02 Units on One Zone (With Chime) ................................................... 27
4.4 Connection to Other PA Systems............................................................................................. 31
5Radio Microphone Receiver Settings .................................................................................................. 32
5.1 Radio Microphone Receiver Frequency Selection ................................................................... 33
5.2 Radio Microphone Receiver Pilot Tone Detection Configuration ............................................. 34
5.3 Radio Microphone Receiver Squelch Level Configuration....................................................... 35
6Commissioning the RRM02 .................................................................................................................. 36
6.1 For a Single RRM02 Unit with Serial Data and Audio Connection to an ASL Router
Audio Input................................................................................................................................ 36
6.1.1 Obtaining the Router Input Number.................................................................................. 36
6.1.2 Configuring the Microphone Type..................................................................................... 36
6.1.3 Configuring the PTT Button .............................................................................................. 36
6.1.3.1 PTT Button Zone Selection....................................................................................... 36
6.1.3.2 PTT Button Cough Timeout (only on VAR4/12/20)................................................... 37
6.1.4 Configuring the Microphone Audio Parameters................................................................ 37
6.1.4.1 Microphone Input Gain.............................................................................................. 37
6.1.4.2 Microphone Surveillance Tone Detection ................................................................. 38
6.1.4.3 Microphone Relative Output Gain............................................................................. 39
6.1.4.4 Microphone Equalisation........................................................................................... 40
6.1.4.5 Microphone Fade Up and Down Times .................................................................... 40
6.1.4.6 Microphone Pre-Annoucement Chime...................................................................... 42
6.1.5 Configuring the Microphone Control Parameters ............................................................. 42
6.1.5.1 Microphone Priority ................................................................................................... 42
6.1.5.2 Microphone Class ..................................................................................................... 43
6.1.5.3 Microphone Name..................................................................................................... 43
6.1.5.4 Busy and Select Indication LEDs Mode (ACU and VAR8-ACU only)....................... 44
6.2 For Multiple RRM02 Units on Single Audio Zone Group with Audio and PTT Relay Connection
to an ASL Router ...................................................................................................................... 45
6.2.1 Multiple RRM02 Units on One Zone (Without Chime)...................................................... 45
6.2.1.1 Router Microphone Input Configuration .................................................................... 45
6.2.1.2 Router Contact Configuration.................................................................................... 45
6.2.1.2.1 Obtaining the Router Output Number................................................................ 45
6.2.1.2.2 Obtaining the Router Contact Number.............................................................. 46
6.2.1.2.3 Configuring Router Contact for Routing ............................................................ 46

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6.2.2 Multiple RRM02 Units on One Zone (With Chime)........................................................... 47
6.2.2.1 Microphone Input Configuration for Input Connected to RRM02.............................. 47
6.2.2.2 Router Contact Configuration.................................................................................... 47
6.2.2.2.1 Obtaining the Router Intermediate Output Number .......................................... 48
6.2.2.2.2 Obtaining the Router Contact Number.............................................................. 48
6.2.2.2.3 Configuring Router Contact for Routing ............................................................ 48
6.2.2.3 Microphone Input Configuration for Intermediate Input ............................................ 49
6.2.2.4 BMB01 Configuration ................................................................................................ 49
6.2.2.4.1 Obtaining the Router Output Number................................................................ 50
6.2.2.4.2 Obtaining the Intermediate Router Input Number ............................................. 50
6.2.2.4.3 Obtaining the BMB01 Digital Input Number ...................................................... 50
6.2.2.4.4 Obtaining the BMB01 Digital Output Number ................................................... 50
6.2.2.4.5 Configuring BMB01 Digital Input for Routing .................................................... 50
6.2.2.4.6 Configuring BMB01’s Digital Output for Busy Indication ................................... 51
6.3 For Connection to Other PA Systems ...................................................................................... 51
7Fault Finding........................................................................................................................................... 52
8Maintenance ........................................................................................................................................... 54
8.1 Powering the RRM02 On and Off............................................................................................. 54
8.2 Radio Microphone Receiver Adjustments and Monitoring ....................................................... 55
9Product Specification ............................................................................................................................ 56
10 Mechanical Dimensions ........................................................................................................................ 57
11 Safety and Precautions ......................................................................................................................... 59
11.1 Environmental........................................................................................................................... 59
11.2 Electrical Safety........................................................................................................................ 59
11.3 ESD Precautions ...................................................................................................................... 59
11.4 EMC.......................................................................................................................................... 59
11.5 Unpacking and Handling ..........................................................................................................59
12 Appendix A – Antenna Coverage ......................................................................................................... 60
13 Appendix B – Antenna Types ............................................................................................................... 61
14 Accessories............................................................................................................................................ 62
15 Spare Parts ............................................................................................................................................. 63
16 Reference Documents ........................................................................................................................... 64
17 Index........................................................................................................................................................ 65
Service and Warranty.................................................................................................................................... 67

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1 Description
The RRM02 Remote Radio Microphone Receiver provides a method of implementation of RPA (Roving
Public Address) functions to defined loudspeaker zones. This unit is a convenient and compact method of
providing a radio microphone receiver when a SAP02 Station Announcement Point is not required. This
would be particularly desirable for zones where there is no additional requirement for a fixed fist microphone
such as the SAP02.
The RRM02 is designed to work with the whole range of ASL Voice Alarm and Public Address systems,
while the provision of the closing contact select output from the RRM02 also enables it to be connected to
PA (Public Address) systems other than those provided by ASL.
Where localised radio microphone coverage is required the RRM02 can be installed without any antenna
cabling, using antenna mounting points on its upper face. If a larger area is to be covered then remote
antennae can be used, and antenna combiners can be used to add further antennae, or multiple RRM02
units can be used in one zone. This functionality may be particularly useful in installations where several
radio microphone antennae are required due to the topology of the zone, e.g. for a long and winding
passenger walkway.
The RRM02 is physically implemented as an IP65 sealed enclosure, and is designed to be mounted against
a vertical wall or other surface in the PA zone. The lower face of the unit provides ‘Power’, ‘Active’, and
‘Busy’ status indicators.
Internally the RRM02 comprises a Radio Microphone Receiver and a microphone PCB (Printed Circuit
Board). A processor on the microphone PCB interfaces all LED indicators and the PTT (Press To Talk)
signal to the ASL PA system by means of a serial interface, while microphone audio is provided as a
balanced 0 dBu (nominal) analogue signal. The microphone’s processor is also responsible for generating
an outgoing low-frequency surveillance tone which is used to monitor the audio connection to the Router.
The processor also interfaces the PTT (Press to Talk) signal to non-ASL PA systems by means of a relay
closing contact.
The Radio Microphone Receiver is a high quality, fully synthesised diversity receiver, capable of working on
ten frequencies that are selectable via a rotary switch. Additional circuitry for pilot tone detection prevents
announcements from unauthorised transmitters. The pilot tone frequency is unique to this receiver. Thus
only announcements from transmitters able to provide the same pilot tone, such as the ASL RPA01
Transmitter, are broadcast to the system, while announcements from unauthorised transmitters are blocked.
This security feature can however be disabled for compatibility with transmitters that do not provide the pilot
tone.
The Radio Microphone Receiver provides phantom power for mast-head antenna amplifiers, which is ideal
for demanding RF environments. The phantom power is current limited so that a short circuit on one antenna
does not disable the other.
The RRM02 is designed to mount two ASL ANT03 Whip Antenna on the upper face, or remotely connected
to the RRM02. The ASL ANT04 Low Profile Antenna can also be used as a remote antenna, if required, as
can other suitable antennae.
Note that no antennae are supplied with the RRM02, and the appropriate type needs to be ordered
separately.
Field connections are provided by DIN rail terminals mounted on the inside rear panel of the back box.

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2 Indicators
LOWER FACE
POWER
ACTIVE
BUS
Y
Indicator Type Indication
POWER Yellow LED Indicates that the unit is powered.
ACTIVE Red LED
• When the RRM02 is connected to an ASL PA/VA system using the
serial microphone data interface the ACTIVE LED illuminates to
indicate that a route has been made and an announcement from a
Radio Microphone is in progress.
• When multiple RRM02 units are used on a single loudspeaker zone
or when used with other manufacturer’s PA systems, the ACTIVE
LED illuminates to indicate that the PTT button is being held down,
however it does not necessarily indicate that a route has been made.
BUSY Red LED
The BUSY LED only operates when the RRM02 is connected to an ASL
PA/VA system using the serial microphone data interface. Therefore the
BUSY LED will not operate when multiple RRM02 units are used on a
single loudspeaker zone or when used with other manufacturer’s PA
systems.
When the BUSY LED is lit this indicates that the zone (or one or more of
the group of zones) addressed by the microphone is already in use by
another input. This microphone can only select the zone if the other input
is of a lower priority.
If a higher priority input selects a zone during a paging announcement
from the RRM02, then the zone will be deselected for the RRM02, and
the BUSY LED will illuminate. The announcement will continue to any
other zones if the RRM02 addresses a group of zones.

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3 Installation
3.1 Main Components
Figure 1 Main Components
1
5
3
4
6
7
2
2
(LOWER FACE)
(Internal wiring omitted for clarity.)
1 Cast aluminium lid
2 Antenna connections:
TNC connectors for antenna connection direct to the upper face of the unit. Pre-fitted adaptor
leads provide internal connection to the Radio Microphone Receiver.
LCable entry holes are provided on the lower face of the unit as alternative antenna cable
entry points; refer to Section “3.2.2.3 Antenna Cabling” (page 10) for connection details.
3 Radio Microphone Receiver
4 Microphone PCB underneath and protected by a metal bracket
5 Cast aluminium box
6 DIN rail terminals for field cabling
7 Relay for interfacing to other manufacturer’s PA systems, and for connection of multiple RRM02
units

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3.2 Installation Requirement
3.2.1 Equipment and Tool Requirements
• The RRM02 unit.
• The antennae if they are to be directly connected to TNC connectors on the upper face of the RRM02.
LThe antennae are not supplied with the RRM02 and need to be ordered separately. The
antenna type to be used for direct connection to the RRM02 is the ASL type ANT03B.
• Cabling as specified in Section “3.3 Cabling Requirements” (page 9) to suit your system design.
• Suitable fixings for the RRM02, and a screwdriver, nut spinner, or other appropriate tool to fix these.
It is suggested that the fixings are M6 pozipan head screws, with a thread length of the required fixing
length plus 20 mm, as the length of the screw inside the RRM02 unit will be 20 mm.
If M6 screws are not used for the fixings, then the unit fixings need to be able to be inserted down the
spaces provided for them in the RRM02 base casing. Therefore their heads must not be of a diameter
greater than 13.0 mm. The shafts of the unit fixings need to be able to be passed through the holes
provided for them in the RRM02 base. Therefore their shafts must not be of a diameter greater than
6.0 mm. The length of the shaft that will be within the RRM02 is 20 mm, so this will need to be allowed
for.
• Pozidriv (M3 and M6) and flat-blade (small and large) screwdrivers.
• Nut spanners (M4 and M25).
• A pair of wire cutters/strippers.
• A large Allen key (10 mm).
• IP65 glands/conduit suitable for the field wiring cable entry hole (25 mm diameter) and for any optional
antenna installation cabling.

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3.2.2 Cabling Requirements
3.2.2.1 Cabling for Serial Data and Audio Connection to an ASL VAR Router, DAU, or ACU
Microphone Input
Signals Cable Description Suggested Type
Audio 1 x 2 core, twisted, screened
Microphone Data (Mic Data) 1 x 2 core, twisted, screened
Overall foil screened.
Low Smoke and Fume (LSF).
CAT5 STP can be used up to 500 m without
adverse cross-talk.
Fire Rated equivalent can be used.
Power 1 x 2 core, screened, 1 mm
Overall foil screened.
Low Smoke and Fume (LSF).
Fire Rated equivalent can be used.
LFor cable-run limitations and alternative cable types, please refer to Application Solutions (Safety and
Security) Limited for advice.
!
!
For EMC compliance:
1. Screened cables must be used where specified.
2. All field cable screens must be connected to the back box.
3. All screen tails must be <3 cm.
3.2.2.2 Cabling for Relay PTT and Audio Connection to an ASL or Other PA System
Signals Cable Description Suggested Type
Audio 1 x 2 core, twisted, screened
Overall foil screened.
Low Smoke and Fume (LSF).
CAT5 STP can be used up to 500 m without
adverse cross-talk.
Fire Rated equivalent can be used.
Relay PTT Signal 1 x 2 core, screened, 1 mm
Overall foil screened.
Low Smoke and Fume (LSF).
Fire Rated equivalent can be used.
Power 1 x 2 core, screened, 1 mm
Overall foil screened.
Low Smoke and Fume (LSF).
Fire Rated equivalent can be used.
LFor cable-run limitations and alternative cable types, please refer to Application Solutions (Safety and
Security) Limited for advice.
!
!
For EMC compliance:
1. Screened cables must be used where specified.
2. All field cable screens must be connected to the back box.
3. All screen tails must be <3 cm.

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3.2.2.3 Antenna Cabling
LAntenna cabling is required when remote antennae are connected to the RRM02.
The antenna cabling must not be kinked or folded at any part of the run, including inside the
RRM02 back box, or it will impair or prevent reception of the microphone signal.
The following coaxial antenna cables are recommended.
1. RG58 type (recommended for short runs of up to 10 m)
a. Antenna cables connected to the TNC connectors on the upper face of the unit; see Figure 2.
Figure 2 RG58 Cable: Connection to Connectors on Upper Face of Unit
RRM02 ENCLOSURE
TNC crimp plug
Suggested type: Gigatronix TN15-0058-C06
Required tool: Gigatronix DCC-1113 or GCT-0058 crimp tool
RG58 cable to antenna
b. Antenna cables fed through the cable entry point on the lower face of the unit and connected
directly to the BNC connectors on the Radio Microphone Receiver; see Figure 3.
LPreferred method if it is required to prevent water ingress into the antenna cabling.
Figure 3 RG58 Cable: Connection to Receiver Connectors
RG58 cable to
antenna
RRM02 ENCLOSURE
To Radio Microphone Receiver
Suitable low-profile right-angle BNC crimp plug
Suggested type: Telegartner J01000A1257 or RS 112-1883
Required tool: RS 453-870 crimp tool
!
!

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2. RG213 or H1000 type (recommended for longer runs of up to 30 m)
a. Antenna cables connected to the TNC connectors on the upper face of the unit; see Figure 4.
Figure 4 RG213 or H1000 Cable: Connection to Connectors on Upper Face of Unit
RRM02 ENCLOSURE
TNC crimp plug
Suggested type: Gigatronix TN15-0519-C06
Required tool: Gigatronix GCT-0519 crimp tool
RG213 or H1000 cable to antenna
b. Antenna cables fed through the hole on the lower face of the unit and connected to the BNC
connectors on the Radio Microphone Receiver; see Figure 5.
Large cables such as the RG213 or H1000 type must be connected externally to the unit
to short flexible RG58 adaptor leads due to the restricted space inside the unit. The
adaptor leads should then be terminated to the Microphone Receiver with a right-angle
BNC crimp plug.
LThe cable join must be IP65 sealed or in an IP65 enclosure if it is required to prevent
water ingress into the antenna cabling.
Figure 5 RG213 or H1000 Cable: Connection to Receiver Connectors
RG58 adaptor lead (*)
RG213
or
H1000
cable to
antenna
RRM02 ENCLOSURE
IP65 cable join
(external to the unit)
Suitable low-profile right-angle BNC crimp plug
Suggested type: Telegartner J01000A1257 or RS 112-1883
Required tool: RS 453-870 crimp tool
TNC jack
Suggested type: Gigatronix TN10-0058-C06
Required tool: Gigatronix DCC-1113 or GCT-0058 crimp tool
To Radio
Microphone
Receiver
TNC crimp plug
Suggested type: Gigatronix TN15-0519-C06
Required tool: Gigatronix GCT-0519 crimp tool
(*) A pre-assembled 23 mm adaptor lead is available from ASL which may suit the gland/conduit being used for the antenna
cabling. This adaptor lead needs to be ordered separately by quoting part A0464660 (two adaptor leads will be required).
!
!

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3.3 Installation Procedure
1. Failure to follow this installation procedure can result in damage to the equipment or
operational failure.
2. Please read and observe the Section “11 Safety and Precautions” (page 59) prior to
installation. Failure to follow these precautions may cause personal injury and/or damage to
the equipment.
1. Remove the lid of the unit by unscrewing the four corner fixings.
2. Mark the surface on which the RRM02 unit will be fitted with the fixing hole positions.
The RRM02 unit is approximately 90 mm x 160 mm x 360 mm in size, excluding the glands and
conduit entries, and has the four fixing holes on 110 mm x 340 mm centres (see Figure 6).
See Figure 27 (page 57) for mechanical dimension details.
Figure 6 Fixing Hole Position
Fixing hole diameter = 6.5 mm
(Internal wiring omitted for clarity.)
(UPPER FACE)
110 mm
340 mm
340 mm
110 mm
RADIO
MICROPHONE
RECEIVER
3. Prepare the mounting holes appropriately.
4. Adjust the Radio Microphone Receiver as follows (see Figure 7):
a. Select the correct RF frequency via the internal rotary switch.
b. The Receiver is supplied with pilot tone detection enabled for secure use with the ASL RPA01
Radio Microphone Transmitters. This configuration will completely block announcements from
Radio Microphone Transmitters that do not provide the required pilot tone (non-tone locked
transmitters)1.
The pilot tone detection can be disabled via DIP switch 1 on the microphone PCB in order to
allow announcements from non-tone locked transmitters.
c. Select the squelch level via DIP switches 3 and 4 on the microphone PCB in order to minimise
the interference of in-band signals.
1Announcements from non-tone locked transmitters are completely blocked with Radio Microphone Receiver modules of Build
Standard (BS) 2B or later. With earlier Build Standards of Radio Microphone Receiver module the audio from non-tone locked
transmitters is muted but they can still make chimes and silent routes. These silent routes can be blocked as detailed in ASL
Technical Note 39; please refer to Application Solutions (Safety and Security) Limited for further details.
!
!

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Figure 7 Radio Microphone Receiver Controls
DIP SWITCH:
1. PILOT TONE DETECTION CONFIGURATION:
2. CONFIGURATION VIA ROUTER:
3. SQUELCH LEVEL SELECTION:
(Internal wiring omitted for clarity.)
(UPPER FACE)
Switch 1 Pilot Tone Detection
ÇDisabled
ÈEnabled (default)
Switch 2 Router Configuration
ÇEnabled (for future use)
ÈDisabled (default)
Do not change.
Switches
3 4 Squelch Level
ÇÇLeast sensitive
–76 dBm
ÇÈ–86 dBm
ÈÇ–93 dBm (default)
ÈÈMost sensitive–99 dBm
FREQUENCY SELECTION
ROTARY SWITCH
È
ON
RADIO
MICROPHONE
RECEIVER
Switch
Position
Transmitter
Channel
0 CH 01
1 CH 02
.
.
.
.
.
.
9 CH 10
A to F CH10
(Refer to Section
“5.3 Radio Microphone
Receiver Squelch Level
Configuration” (page 27)
for further details.)
(Refer to Section
“5.1Radio Microphone
Receiver Frequency
Selection” (page 34) for
further details.)
Refer to Section
“5.2 Radio Microphone
Receiver Pilot Tone
Detection Configuration”
(page 26) for further details.

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5. Fix the RRM02 unit in its mounting position using the selected fixings and appropriate tools.
6. If antennae, or antenna cabling, are to be directly connected to the TNC connectors located on the
upper face of the unit, ensure that the internal adaptor leads are connected, and then connect the
antennae or antenna cabling in place (see Figure 8).
These leads are supplied fitted as standard. If they have been removed during the installation, then re-
connect the adaptor leads as shown in Figure 8.
See Section “3.2.2.3 Antenna Cabling” (page 10) for cabling and connector details.
LThe antennae are not supplied with the RRM02 and need to be ordered separately. The
antenna type to be used for direct connection to the RRM02 is the ASL type ANT03B.
Figure 8 Internal Coaxial Lead Connection
(UPPER FACE)
(Internal wiring omitted for clarity.)
RADIO
MICROPHONE
RECEIVER
2 x ADAPTOR LEADS:
1. Long lead connected to the connectors
on the left side.
2. Short lead connected to the connectors
on the right side.
2 x ANTENNA CABLE ENTRY HOLES:
Fit tightly with blanking plugs provided.
2 x TNC CONNECTORS:
Connect antenna cable.

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7. If antenna cables are used, and these are passed into the RRM02 through the holes provided on the
lower face of the unit, then proceed as follows.
See Section “3.2.2.3 Antenna Cabling” (page 10) for cabling and connector details. See Figure 28
(page 58) for approximate cable length inside the unit.
1. Large cables such as the RG213 or H1000 type must be connected externally to the
unit to short flexible RG58 adaptor leads due to the restricted space inside the unit.
2. The antenna cabling must not be kinked or folded at any part of the run, including
inside the RRM02 back box, or it will impair or prevent reception of the microphone
signal.
a. Remove the M25 blanking plugs on the lower face of the unit, and install the antenna cable
glands or conduits (see Figure 9).
b. Disconnect the adaptor leads connecting the TNC connectors on the upper face of the unit, if
not already done (see Figure 9).
c. Fit a blanking cap to each unused TNC connector on the upper face of the unit (see Figure 9).
Note that blanking caps are not supplied with the RRM02, and can separately be ordered from
Application Solutions (Safety and Security) Limited quoting part 207036.
Figure 9 Antenna Cabling Entry Points at Unit’s Lower Face
(UPPER FACE)
(Internal wiring omitted for clarity.)
RADIO
MICROPHONE
RECEIVER
2 x ANTENNA CABLE ENTRY HOLES (
φ
25 mm):
1. Remove blanking plug.
2. Fit antenna IP65 conduit or
g
land.
2 x BLANKING CAPS:
Fit blanking cap to each TNC connector.
2 x ADAPTOR LEADS:
Remove by disconnecting both ends.
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!

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d. Feed the antenna cables through the cable glands or conduits, cut to length, and terminate to
the Radio Microphone Receiver using low-profile Telegartner right-angle BNC plugs.
e. Route the antenna cables as shown in Figure 10, and then connect the cables to the Radio
Microphone Receiver RF inputs.
Figure 10 Antennae Cabling Routing
(UPPER FACE)
(Internal wiring omitted for clarity.)
RADIO
MICROPHONE
RECEIVER
2 x RECEIVER RF INPUTS:
1. Route antenna cable.
2. Termination: Telegartner right-angle BNC plugs J01000A1257 or RS 112-1883).
3. Connect cable to Receiver connector.
8. Ensure that the power supply from the central equipment rack, or wall mount Intellevac DAU or ACU is
turned off.

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9. Install the field cabling gland or conduit in the hole provided on the lower face of the unit, and then
feed the field cabling through into the RRM02 (see Figure 11).
Figure 11 Field Cabling Entry Point
(UPPER FACE)
(Adaptor leads, and hole blanking plugs fitted as standard.)
(Internal wiring omitted for clarity.)
RADIO
MICROPHONE
RECEIVER
FIELD CABLING ENTRY HOLE (
φ
25 mm):
1. Fit IP65 conduit or gland.
2. Feed audio, data and power supply cabling, and cut to length.

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10. Connect the field cabling to the DIN rail terminals, and to the relay output (if required); see Figure 12.
A cable retaining clip is provided in order to secure the field cabling to the back box if required.
Figure 12 DIN Rail Terminals and Relay Outputs
For EMC compliance ensure that:
1. All field cabling screens (apart from the coaxial cables) are connected to the back
box. This should be via the DIN rail SHIELD terminal.
2. All screen tails are <3 cm.
5 (SPRING-CLAMP)
4(SCREW-IN)
3 (SPRING-CLAMP)
2 (SPRING-CLAMP)
1 (SPRING-CLAMP)
6 (SPRING-CLAMP)
DXP
DXN
SHIELD
AUDIO+
AUDIO-
0V
+V
SHIELD
21 11 24 14
A2 A1
22 12
RELAY
COM: 11, 21
NO: 14, 24
FIELD CABLING
7 (SPRING-CLAMP)
(SPRING-CLAMP)
(UPPER FACE)
CABLE RETAINING CLIP
SPRING-CLAMP TERMINALS:
Release clamp by inserting a small
screwdriver into the top aperture, and
applying downward pressure.
L
M4 NUT+WASHERS
RELAY CONTACT PAIRS:
11-14
21-24
(NO/Normally Open, closing to the
matching COM/Common terminal for
radio broadcast PTT signal).
L
RADIO
MICROPHONE
RECEIVER
RELAY AND
DIN RAIL TERMINALS
(Adaptor leads, and hole blanking plugs fitted as standard.)
(Internal wiring omitted for clarity.)
(Refer to Section “4.1 DIN Rail and Relay
Terminal Allocation” (page 19) for terminal
allocation details.)
(See Figure 28 (page 45) for approximate cable
len
g
th inside the unit.
)
!
!

RRM02 - Product Manual
Issue: 02 complete, approved
Page 19 of 68
11. Ensure that the DIN rail power supply disconnect lever is toggled on (see Figure 13).
Figure 13 Power Supply Terminal
BACK BOX
FIELD CABLING
+24 V INPUT – TERMINAL 4
DISCONNECT LEVER
(TOGGLED ON)
12. Fix the RRM02 lid back in position, screwing it tight to provide an IP65 seal, but not excessively tight
so that any of the fixing threads are stressed, as this may cause them to weaken and shear.
LThis can be done after commissioning the unit, if desired. Leaving the lid off at this stage
enables the RF signal strength LEDs on the lower face of the Radio Microphone
Receiver to be seen during unit commissioning (see Figure 14).
Figure 14 Radio Microphone Receiver RF Level Indicators
RADIO MICROPHONE
RECEIVER
-74 dBm
-79 dBm
-86 dBm
-93 dBm
13. Power the unit on from the central equipment rack, or wall mount Intellevac DAU or ACU.
14. Commission the microphone as described in Section “6 Commissioning” (page 36).

RRM02 - Product Manual
Issue: 02 complete, approved
Page 20 of 68
4 Connections
4.1 DIN Rail and Relay Terminal Allocation
Table 1 Terminal Allocation
5 (SPRING-CLAMP)
4 (SCREW-IN)
3 (SPRING-CLAMP)
2 (SPRING-CLAMP)
1 (SPRING-CLAMP)
6 (SPRING-CLAMP)
DXP
DXN
SHIELD
AUDIO+
AUDIO-
0V
+V
SHIELD
21 11 24 14
A2 A1
22 12
RELAY
7 (SPRING-CLAMP)
(SPRING-CLAMP)
Relay Terminals
Terminals Description
A1 COIL +
No user connection
A2 COIL –
No user connection
11/ 21 Common (COM)
Contact select output
12/ 22 Normally Closed (NC)
No user connection
14/ 24 Normally Open (NO)
Contact select output
1) The protection diode is pre-fitted.
2) The pair contacts for connection of PTT to other
manufacturer’s PA systems or for connection of
multiple RRM02 units are: 11-14, or 21-24.
NO/Normally Open, closing to the matching
COM/Common terminal for radio broadcast PTT
signal.
DIN Rail Terminals
Signal Description Internal
Wiring Colour
SHIELD Connection for cable screen
(bonded to DIN rail) Black
DXN
Data–
ASL Microphone control data
EIA RS485 19200 baud
Yellow
DXP Data+
As above Orange
+V +V supply (18 V - 40 V) Green
0V 0 V supply from system Blue
AUDIO−
–VE
Balanced Audio Output
Level: 0 dBu (nominal)
Output impedance: 66 Ω
Red
AUDIO+ +VE
As above Brown
SHIELD Connection for cable screen
(bonded to DIN rail) –