Motorola RMN5072, RMN5073, RMN5074 User Manual

Public Safety

Speaker/Microphones

Models: RMN5072, RMN5073

& RMN5074

DESCRIPTION

The RMN5072, RMN5073, and RMN5074 Public Safety Speaker/
Microphones (PSSM) include a speaker, microphone, push-to-talk
(PTT) switch, high/low volume switch, swivel clip, RF adapter, and
accessory connector cord assembly. The three microphones are
exactly the same, except that the lengths of their cords are differ­ent: RMN5072 is 30”, RMN5073 is 24”, and the RMN5074 is 18”.

When the PSSM’s acce ssory connector is attached t o the radio, the
radio’s speaker is disabled, and the received audio is instead
routed to the PSSM’ s speaker. Similarly, the PSSM’ s microphon e is
connected to the radio’ s transmitter, and the PSSM’s PTT switch
can now control the PTT function of the radio. The radio’ s micro­phone and PTT switch are still operational but, since the radio’s
speaker is disabled, yo u can li sten to the received audio only
through the accessory speaker. Similarly, when a secondary
receiver audio accessory is p lugg ed i nto the 3.5 mm audio jack, the
received audio can only be heard through the secondary acces­sory.

The public safety speaker/microphone has a threaded antenna port
on its top. The antenna must be ordered separately. Use the radio
antennas.

Notes:

• Before the PSSM can be used with a radio, a radio frequency
(RF) adapter (RLN5918) must be installed in the radio’s
antenna port.

The PSSM also has a 3.5mm earphone jack. A seal, attached to
the accessory connector, is provided to cover the earphone jack
when it is not in use.

1

OPERATION

A. If the radio’ s universal co nnector cover is inst al led in the ra dio,

remove it by:

1. Looking at the antenna side of the rad io, insert a flat-bladed
screwdriver between the lower end of the universal connec­tor cover and the slot below the universal connector.

2. Pry upward on the cover’s lower end until it disengages
from the radio.

B. Ensure that the radio is turned off before attaching the acces-

sory connector to the radio.

C. Attach the accessory connector to the radio’s universal con-

nector as follows:

1. Make sure the RF adapter has been installed in yo ur radio’s
antenna port.

2. Looking at the antenna side of the radio.

3. While holding the accessory connector seated in the bottom
slot, pivot the top of the accessory connector toward the
radio until its RF interface connector aligns with the RF
adapter. Push down on the top of the RF interface connec­tor until it is aligned with the RF adapter and engage the
accessory connector’s spring-loaded latch inthe radio’s top
slot.

4. If a more permanent attachment is desired after the acces­sory connector is latched to the rad i o, secure the latch to
the connector housing using the screw supplied.

D. Attach the applicable (fre quency-sensitive) antenna to the

PSSM by screwing the antenna’s threaded end into the
threaded antenna jack on top of the PSSM’s housing. Rotate
the antenna clockwise into th e jack until it seats firmly. The
public safety speaker/ microphone performs best when it is
operated with the antenna above the user’s shoulder.

E. Turn the radio on and operate it as explained in the operating

instructions suppl ied with the radio. Remember that receiver
audio will be heard only from the accessory speaker.

2

F. Set the high/low switch on the public safety speaker micro-

phone to the “low” position to monit or audio at a low volume;
for a high volume level, set the switch to the “high” position.

G. To transmit using the public safety speaker/microphone, press

the PSSM’s PTT and speak into the microphone’s grille area.
The red light-emitting diode (LED) on top of the radio will light,
indicating that the radio is in the transmit mode.

SECONDARY AUDIO ACCESSORY ATTACHMENT

The public safety speaker/microphone’s earphone jack is to be
used with non-threaded, 3.5mm-plug accessories, such as
AARLN4885, RLN4941, and WADN4190.

3

MOTOROLA and the Stylized M Logo are registered in the U.S.
Patent & Trademark Office. All other product or service names are
the property of their repective owners.

© 2005 by Motorola Inc., Radio Products Group
8000 W. Sunrise Blvd., Ft. Lauderdale, FL 33322.
All Rights Reserved. Printed in U.S.A. 4/05

User’s Guide

*6881098C13*

6881098C13-O