Motorola PMMN4041, PMMN4042, PMMN4043 User Manual

Public Safety
Speaker/Microphone

PMMN4041/PMMN4042/PMMN4043

User Guide

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MOTOTRBO Radio

DESCRIPTION

The PMMN4041/PMMN4042/PMMN4043 Public Safety
Speaker/Microphone (PSM) provides a convenient means of
communicating by having a speaker, a microphone, a
Push-to-talk (PTT) button, a toggle switch, orange emergency
button and an earphone jack on side of the PSM housing.
The PMMN4041/PMMN4042/PMMN4043 Public Safety
Speaker/Microphone includes:

•A cable and connector assembly that connects the PSM

to the radio side connector.

• An orange button on top of the PSM housing that is
programmable via radio’s Customer Programming
Software (CPS).

• A PSM antenna jack (located on top of the PSM housing)
that enables a RF antenna to be connected for extending

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the radio transmit/receive range.

•A 3.5 mm audio jack (located on opposite side of PSM’s
PTT) that accepts secondary receiver audio accessories.

• 2 types of removable antenna that provides optimum
operation in each UHF (403

–433 MHz and 430–470 MHz),

and VHF (136–153 MHz and 150–174 MHz) frequency
band. The antenna is not supplied with the PSM kit. It must
be ordered separately. The antenna kit number is listed in
Table 1. It is not recommended to have both PSM antenna
and radio antenna connected. In doing so, the radio
transmit/received performance is reduced. Do not connect
the radio antenna on the PSM and vice versa because the
optimal radio operation in the UHF/VHF frequency band
will be reduced.

Note: The “PSM” word is embossed on the PSM antenna.

1

Table 1

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Antenna kit

Frequency Description

number

PMAE4046A UHF, 403–433 MHz 9cm Stubby Red
PMAE4047A UHF, 430–470 MHz 9cm Stubby Green
PMAD4087A VHF, 136–153 MHz 16cm Helical Yellow
PMAD4086A VHF, 150–174 MHz 16cm Helical Blue

Insulator

Color Code

OPERATION
Safety

To assure optimum PSM performance, hold the PSM in the
vertical position, 2.5 to 5.0 centimeters (1-2 inches) away from
the mouth and keep the antenna at least 2.5 centimeters (one
inch) from the head or body.

Attaching the PSM to the Radio

1. Attach the PSM antenna to the PSM by inserting the
antenna into the PSM antenna jack and turn in a clock

-

wise direction until tighten.

2. Turn the radio off.

3. Remove the antenna from the radio by unscrewing the
antenna in a counterclockwise direction.

4. Attach the PSM GCAI connector to the mating radio
side connector and then secure the connection by
turning the connector’s screw in a clockwise direction
until tighten.

5. Turn the radio on.

2

Wearing the PSM
(See Figure1)

To minimize interference and optimize PSM performance,
wear the radio and PSM so that the accessory cord will not
cross over or touch the antenna. Also, try to wear the radio
and accessory fairly close to each other to avoid strain on the
accessory connector.

Figure 1 Wearing the PSM

Note: For optimize PSM antenna performance,
wear the PSM antenna above shoulder
level.

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3

Receiving

When the PSM is connected to the radio (side connector and
antenna port) the PSM antenna is enabled, the radio’s
speaker is muted, and the audio is only heard from the PSM
speaker. Similarly, when a secondary receiver audio

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accessory is plugged into the 3.5 mm audio jack, audio to the
PSM is re-routed to the secondary accessory.

A toggle switch, located on top of the PSM, allows you to
adjust the volume from the radio’s setting to a lower level or
higher level without having to touch the radio. Press and hold
the toggle switch to the direction of ( ) to ramp up the
volume; press and hold the toggle to the direction of ( ) to
ramp down the volume. Volume adjustment are available at
8 interval. This feature is especially useful when the radio is
worn on the belt, and the speaker/microphone is on the lapel
or shoulder, as shown in

Figure1.

Ramp-down
volume toggle

Orange

Ramp-up
volume toggle

Push-to-talk
button

button

3.5 mm audio
jack

Figure 2. PSM

4

Transmitting

Connecting the PSM to the radio does not disable the radio’s
microphone and PTT.

Removing the PSM from the Radio

1. Turn the radio off.

2. Remove the PSM connector from the radio side
connector.

3. Reattach the radio antenna; screw the antenna into the
radio antenna jack in a clockwise direction until tighten.

4. Remember to keep the rubber seal inserted in the
PSM’s 3.5 mm jack when a secondary accessory is not
being used.

5. The radio is ready to be turned on for use.

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5

SERVICE

Other than the replaceable cable assembly, clip and antenna,
the PMMN4041/PMMN4042/PMMN4043 Public Safety
Speaker/Microphone is not repairable. Order replacement
PSMs as necessary. The following optional accessories and

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replacement parts are available for order from Motorola’s
Radio Products and Services Division (RPSD) or Motorola
Accessories & Aftermarket Division (AAD).

Table 2

Part Number Description

4205823V01 Short swivel clip
3071563L01 30” Straight cord
3071563L02 24” Straight cord
3071563L03 18” Straight cord
PMAE4046A PSM UHF Stubby Antenna (403–433 MHz)
PMAE4047A PSM UHF Stubby Antenna (430–470 MHz)
PMAD4087A PSM VHF Antenna (136–153 MHz)
PMAD4086A PSM VHF Antenna (150–174 MHz)
RLN4885 Receive-only foam-covered earbud
WADN4190 Receive-only flexible earpiece
PMLN4620 D-Shell Style Receive-only earpiece
AARLN4941/

MDRLN4941
RLN4760 (S-right) Clear and comfortable earpieces for use with
RLN4761 (M-right)
RLN4762 (L-right)
RLN4763 (S-left)
RLN4764 (M-left)
RLN4765 (L-left)

Receive-only earpiece with translucent tube
and rubber eartip

RLN4941 listed above. These earpieces are
alternatives to the standard rubber eartip and
available in Small, Medium, and Large; for
the Left or Right Ear.

Note: Some accessories stated above may have a

regional prefix attached to the part number.
(i.e. MDRLN4885)

6

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