HME DX340ES User manual

HME# 400G757
Rev A 9/13/16
DX340ES
HD Wireless Headset System
Operating Instructions

Table of Contents
SECTION 1. INTRODUCTION.................................................................1
Radio Communication Center.......................................................................1
Theatre ........................................................................................1
Broadcasting....................................................................................1
SECTION 2. EQUIPMENT IDENTIFICATION .....................................................2
STANDARD EQUIPMENT............................................................................2
OPTIONAL EQUIPMENT ............................................................................3
EQUIPMENT FEATURES ............................................................................4
Base Station ....................................................................................4
Beltpac ........................................................................................6
All-in-One Headset (optional) .......................................................................6
SECTION 3. EQUIPMENT SETUP .............................................................7
BATTERY CHARGER ...............................................................................7
BASE STATION ....................................................................................8
Optional Battery Operation of Base Station ............................................................9
Spectrum Friendly™Interference Avoidance ..........................................................10
Base Switch (Disabled in this version) ...............................................................10
Multiple Base Stations ...........................................................................11
Audio Connection ...............................................................................11
Single/Dual Channel Setting.......................................................................11
Base Station Microphone Gain Adjustment ...........................................................11
REGISTRATION ..................................................................................12
Beltpac and All-in-one Headset ....................................................................12
Beltpac or All-In-One Headset Adjustments ...........................................................13
OPTIONAL REMOTE ANTENNA INSTALLATION ........................................................14
OPTIONAL AUXILIARY EQUIPMENT CONNECTION .....................................................15
SECTION 4. EQUIPMENT OPERATION ........................................................16
THE BASICS ................................................................................... 16
Base Station Operation...........................................................................16
Beltpac / All-In-One Headset Operation ..............................................................17
Changing Batteries ..............................................................................18
Beltpac or All-In-One Headset Operating Mode Setup...................................................19
RADIO APPLICATIONS.............................................................................20
Emergency Services.............................................................................20
Production Crew with Separate Radio Channel ........................................................21
SECTION 5. TROUBLESHOOTING ...........................................................22
FREQUENTLY ASKED QUESTIONS ..................................................................24
SECTION 6. TECHNICAL DATA ..............................................................25
EQUIPMENT SPECIFICATIONS......................................................................25
Base Station ...................................................................................25
Beltpac .......................................................................................26
All-In-One Headset ..............................................................................26
SECTION 7. SECTION INDEX................................................................28
TABLE OF CONTENTS

FCC NOTICE
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including
interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communication.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required
to correct the interference at his own expense.
Changes or modications not expressly approved by HM Electronics, Inc. could void the users authority to operate this
equipment.
Hereby, HM Electronics, Inc. declares that the DX340ES is in compliance with the essential requirements and other relevant
provisions of R&TTE Directive 1999/5/EC.
This product operates in the 2400 to 2483.5 MHz frequency range. The use of this frequency range is not yet harmonized
between all countries. Some countries may restrict the use of a portion of this band or impose other restriction relating to power
level or use. You should contact your Spectrum authority to determine possible restrictions.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The European Union (EU) WEEE Directive (2012/96/EU) places an obligation on producers (manufacturers, distributors and/or
retailers) to take-back electronic products at the end of their useful life. The WEEE Directive covers most HME products being
sold into the EU as of August 13, 2005. Manufacturers, distributors and retailers are obliged to nance the costs of recovery
from municipal collection points, reuse, and recycling of specied percentages per the WEEE requirements.
Instructions for Disposal of WEEE by Users in the European Union
The symbol shown below is on the product or on its packaging which indicates that this product was put on the market after
August 13, 2005 and must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of the user’s
waste equipment by handing it over to a designated collection point for the recycling of WEEE. The separate collection and
recycling of waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in
a manner that protects human health and the environment. For more information about where you can drop off your waste
equipment for recycling, please contact your local authority, your household waste disposal service or the seller from whom you
purchased the product.
HM Electronics, Inc. is not responsible for equipment malfunctions due to erroneous translation of
its publications from their original English version. Illustrations in this publication are approximate
representations of the actual equipment, and may not be exactly as the equipment appears.
© 2016 HM Electronics, Inc.
The HME logo and product names are registered trademarks of HM Electronics, Inc. All rights reserved.

1
SECTION 1. INTRODUCTION
The DX340ES is a digital wireless communication system that enables hands-free two-way secure communication on
two independent channels, or both channels at the same time. It can be operated with AC or battery power. Multiple base
stations can be interconnected for expanded capabilities.
In addition to the standard communication among base station and beltpac operators, the system can be congured to
operate with almost any radio or digital matrix (4-Wire) communication system.
This manual provides detailed setup and operating instructions for your DX340ES system.
The following examples are of typical DX340ES applications.
Radio Communication Center
Theatre
Broadcasting

2
SECTION 2. EQUIPMENT IDENTIFICATION
STANDARD EQUIPMENT

3
Headset with dual ear muffs
Model # CC-30-MD4
Headset, all-in-one, with battery
Model # WH340
Headset extension cable, 6 ft (1.83 meter) Foam earmuffs for all-in-one headset
Rechargeable battery for base station Model #
BAT850
Battery charger for base station batteries
Model # AC850
Remote antenna kit with 6 foot (1.83 meter) cable and
bracket
Remote antenna kit with 30 foot (9.14 meter) cable
and bracket
Adapter cable for headset with dynamic microphone
and XLR connector
Model # MD-XLR4F, MD-XLR4M, MD-XLR5F
OPTIONAL EQUIPMENT

4
EQUIPMENT FEATURES
Base Station
Top Panel
Antennas
Battery compartment latches
Power button
Right talk lightsLeft talk lights
Right SELECT buttonLeft SELECT button
Right TALK buttonLeft TALK button
Active communicator lights
Clear/Band button Status indicator Reset switch
Registration
button
Right headset volume control
Left headset
volume control

5
Front Panel
Left Side Panel
Right Side Panel
Microphone gain adjustment
for left headset
Cable “input” from
another base station
Auxiliary audio in/out
volume adjustments
(recessed)
Left headset connector
Rear headset connector
Single/Dual channel mode
selection switch
Cable “output” to
another base station
Primary/Secondary base
station selection switch
Microphone gain adjustment
for right headset
Rear Panel
10-pin connector
for auxiliary audio
connection input/
output
Antenna connectors
Power supply connector
8-pin connector for
equipment relay controlled
by beltpac buttons

6
Beltpac
All-in-One Headset (optional)
Battery
release
latch
Battery
X-channel
button
All
button
O-channel
button
Power
button
Volume Up
button
Volume Down
button
Headset cable
connector
Power/O-channel
light
Power/X-channel
light
Headband
slide-to-t
Sanitary muff
Microphone
boom
Power/
Talk light Power
button
Talk
light
X-channel
button
All
button
O-channel
button
Volume Up
button
Volume Down
button
Battery release latch
(blue button)
Battery

7
SECTION 3. EQUIPMENT SETUP
BATTERY CHARGER
NOTE: Set up the battery charger and charge all beltpac and/or all-in-one headset batteries while
you are setting up the base station.
Power Supply
Power Supply Cord
1 Connect power supply to charger and electrical outlet.
2 Charge all beltpac batteries. Charging time is approximately three hours.
Put up to 4 batteries in charging ports
Put up to 4 batteries in
charging ports
Storage ports for
charged batteries
Status lights next to each charging port
Red light
• Stays on steady while battery is charging
Green light
• Goes on when battery is fully charged
Yellow light
• Stays on steady when charging port is empty
• Flashes if battery is too hot to charge
• Next to battery in charging port means charge has
failed – see instructions on side of charger
Red light
• When you place a battery in a port for charging, its
status light will turn red.
Green light
• When a battery is fully charged, its status light is green.
Yellow light
• When a battery charging port is empty, its status light
is yellow.
Storage ports for charged batteries
Plug the cord from the +5VDC power
adapter into the battery charger, and
then plug the power adapter into an
electrical outlet.
AC50 US and international
power supplies and adapters

8
BASE STATION
1 Fasten both antennas onto the connectors on the back of the base station.
Tighten at 90° angle.
2 Set up base station where no objects are blocking the line-of-sight from
base station to the beltpacs. If base station can not be set up with no objects
in line-of-sight between it and the beltpacs, install the antennas away from
the base station. See page 17 for remote antenna installation. Antenna connectors
90°
angle
NOTE: A fully charged battery can be kept in the base station as a backup in case of AC power
interruption.
If AC power is unavailable, the base station can operate on battery power (See page 9).
3 Plug power adapter into base station and screw nut onto connector, then plug power cord into power adapter
and electrical outlet.
4 Press POWER button to turn power on.
5 Plug headsets into the base station, inserting headset plugs all the way into connectors.
Left headset
connector
Right headset
connector

9
Optional Battery Operation of Base Station
A base station can operate on battery power when AC power is unavailable.
Typical base station battery life when used continuously is as follows:
Energizer ULTIMATE Lithium ................5 hours
BAT850 Rechargeable Battery ...............2¼ hours
Duracell Quantum .........................35 minutes
1 If you are using the battery sled, insert six “AA” batteries.
2 Pull back on the battery compartment latches, and lift the battery compartment cover on the base station.
NOTE: Always plug base station into AC power when available. To conserve battery power,
turn the base station off when it is not being used.
NOTE: When base station battery power is low, everyone connected or registered to that base
station will hear a headset tone that repeats every 8 seconds. Additionally, both headset
select lights will blink.
BAT850 Battery
Battery sled
3 Insert the battery sled or rechargeable BAT850 battery (optional) into the battery
compartment, and close the cover.
4 If you are using the BAT850 battery, insert it in the AC850 battery charger (optional)
for recharging after each use.
Follow the instructions received with the charger. Charging time is approximately 3 hours.
AC850 Battery Charger
Battery
compartment
cover
Battery
compartment
latches

10
Spectrum Friendly™Interference Avoidance
Multiple base stations can operate on high or low parts of the frequency band to prevent interference, which may be
characterized as popping sounds in the headset.
For example, with four base stations, set two on low band and set the other two on high band as follows:
NOTE:
Base stations are shipped in the “A” (default) position.
The letter “c” will only appear on the STATUS display if you are setting the frequency band
the rst time or if you are changing the setting.
If you stop at L, Hor Athat was already set, an “8” will appear for a few seconds and the
STATUS display will turn blank.
If you change a base station’s existing frequency band setting, you will have to re-register all
beltpacs and/or all-in-one headsets that were registered to that base station.
1 Turn the base station power on.
The STATUS window will show “8” for a few seconds.
After the “8” disappears, the STATUS window will be blank.
2 Press and hold the CLEAR/BAND button, then simultaneously press and hold
the REGISTER button.
The STATUS window will show L, Hor A.
3 Press the CLEAR/BAND button repeatedly to cycle through the frequency band:
L= Low end, H= High end and A= All.
Stop at the desired setting and wait until “c” appears on the STATUS display.
Base Switch (Disabled in this version)
PRI or SEC setting functionality for the BASE Switch is disabled
in this version. The switch can be set to either position.
BASE switch
Right side of base station

11
BASE IN
connector
BASE OUT
connector
Interconnect cable
First base station Next base station
Audio Connection
Connect base stations with the provided interconnect cable, from the BASE OUT connector on one to the BASE IN
connector on the other.
Base Station Microphone Gain Adjustment
The microphone gain adjustment allows you to adjust the level of your voice
as it is transmitted from the headsets plugged into the base station
Microphone gain must be adjusted for each base station headset.
1 Using a headset plugged into the right side of a base station, locate the
recessed MIC GAIN adjustment hole on the right side of the base station.
2 Insert a small screwdriver in the hole, and turn the adjustment clockwise (to
increase) or counterclockwise (to decrease) microphone gain.
3 Speak into the right headset microphone and listen to your voice level
(sidetone) as you adjust the microphone gain.
4 Using a headset plugged into the left side of the base station, locate the
MIC GAIN adjustment on the left side of the base station, and then repeat
Steps 2 and 3.
5 Repeat Steps 1 through 4 for each base station.
Base station microphone
gain adjustment
Insert small screwdriver
NOTE: Base station microphone gain is factory set at about one-third from minimum level.
Single/Dual Channel Setting
In the single-channel (SNGL) mode ― four beltpacs and/or all-in-one headsets can be used in the hands-free mode,
communicating in “O” channel only.
In the dual-channel (DUAL) mode ― three beltpacs and/or all-in-one headsets can be used in the
hands-free mode, communicating in either “O” or “X” channel, or “ALL” (both channels).
On the right side of the base station(s), set the MODE switch to the single or
dual-channel position.
Right side of base station
MODE switch
Multiple Base Stations
Up to 20 crew members can communicate using the DX340ES (ve per base station) by interconnecting up to four base
stations as described below.

12
1 Turn the base station power on, and the beltpac power off.
2 Plug the headset into the beltpac, and put the headset on your head
(beltpac registration only).
3 Press the REGISTER button on the base station registration panel.
A lower case “o” will appear on the STATUS window.
4 Press and hold the ALL button on the beltpac as you press
and release its PWR (power) button. After a brief delay, you
should hear “Registration complete”. An ID number for the
beltpac will appear briey on the STATUS window.
5 Repeat Steps 1 through 4 for each beltpac.
REGISTRATION
Beltpac and All-in-one Headset
NOTE: All-in-one headset registration is the same as the beltpac registration described below,
except for Step 2. If you have more than one base station, you must register each beltpac
to the base station in which it will be used.
NOTE: If registration is not successful, you will hear “Registration failed” and the STATUS
window will be blank. If this happens, refer to TROUBLESHOOTING in Section 5, page 22.
NOTE:
If you’re attempting to register more than 15 beltpacs to a base station:
●An “F” (Full) will appear in the STATUS window, and you will hear “Registration failed” in
the headset.
●Clear all current registrations by pressing and holding the CLEAR/BAND button while you
press and release the RESET button with the point of a pen. Continue holding the CLEAR/BAND
button after you release the RESET button until the clear code “c” (lower case) appears on the
STATUS window.
●Register all beltpacs, one at a time, including previously registered beltpacs.
Power button
ALL button
REGISTER
button
STATUS
window

13
Beltpac or All-In-One Headset Adjustments
Sidetone Adjustment (Beltpac only, not on all-in-one headset)
When you speak into the microphone, you can hear sidetone (your own voice) in the beltpac headset.
Sidetone can be adjusted as follows:
1 Be sure the beltpac power is on.
2 While holding down the “O” button, press the volume-up () or volume-down () button as many times as needed to
reach an acceptable level. If you reach the high limit, you will hear “maximum” in the headset. If you reach the low
limit, you will hear double beeps.
Maximum sidetone level is recommended.
Microphone Gain Adjustment
Some users speak louder or softer than average.
The microphone gain adjustment helps to compensate for extremes in speaking level of coaches using beltpacs or all-in-
one headsets.
NOTE: The microphone gain can be monitored through sidetone, or preferably by someone else
using a beltpac or all-in-one headset, or at the base station.
NOTE: Microphone gain and sidetone adjustments will be saved in memory. A reset is not
required when the unit is turned off and on.
1 Be sure the beltpac or all-in-one headset power is turned on.
2 While holding down the Xbutton, press the volume-up or volume-down button as many times as needed to
reach an acceptable level. If you reach the high limit, you will hear “maximum” in the headset. If you reach the low
limit, you will hear double beeps.
Recommended microphone gain levels are:
• Beltpacs – 12 presses down from maximum.
• All-in-one headsets – 8 presses down from maximum.

14
OPTIONAL REMOTE ANTENNA INSTALLATION
It may be necessary to place the antennas away from the base station if it is not possible to avoid obstructions between it
and the beltpacs and/or all-in-one headsets.
Remote antenna kits with either 6 foot (1.83 meter) or 30 foot (9.14 meter) cables can be used to mount the antennas
wherever necessary to alleviate this problem.
To order a remote antenna kit, refer to the optional equipment shown on page 3. Installation instructions are enclosed with
the remote antenna kit

15
OPTIONAL AUXILIARY EQUIPMENT CONNECTION
Auxiliary equipment such as audio/video recorder or a hardwired intercom can be connected to the rear panel of the
base station. Equipment requiring 4-Wire audio interfacing, such as audio/video recorders or hardwired intercoms, can be
connected to the 10-pin connector and plugged into the rear panel of the base station.
Equipment requiring relay closure, such as a router or mobile radio, can be connected to the 8-pin connector and plugged
into rear panel of the base station.
1 Connect the wires from your auxiliary audio equipment to the enclosed 10-pin connector in accordance the
table below.
8 and 10-pin spring clamp connectors
Pin Connections
1Aux In − O Differential pair
2Aux In − O
3Aux Out − O Differential pair
4Aux Out − O
5 Ground
6No Connection
7Aux In − X Differential pair
8Aux In − X
9Aux Out − X Differential pair
10 Aux Out − X
3 Plug the connector into the back panel of the base station as shown above.
4 By inserting a small screwdriver in the holes on the front panel of the base station,
you can adjust the IN and OUT sound level of “O” and “X” communication channels
as needed.
2 Connect the enclosed 8-pin connector to the wires from equipment you would like to control from the O, X or ALL
buttons on your beltpacs and/or all-in-one headsets (i.e. long range radio).

16
SECTION 4. EQUIPMENT OPERATION
THE BASICS
Base Station Operation
Headset volume
Channel select button
(O, All or X)
Channel select button
(O, All or X)
Green: Listen only
Red: Talk and listen
Talk button
(Push ON - Push OFF)
1 Press base station POWER button to turn on power.
2 Place the left or right headset on your head, then use the left or right base station headset controls to adjust.
3 Adjust the headset volume as needed.
4 Press the channel SELECT button; a Green light appears above O, ALL or X selection ― Press the SELECT button
again to change selection.
5 To talk to beltpac or all-in-one headset users, press and release TALK button − the Green light turns red. Talk and
listen as you would in normal telephone conversation. Press and release TALK button again when you nish talking.
(You will still hear the other users, but they will not hear you.)
6 To turn base station off, press and hold POWER button until the lights turn off.
CAUTION: Having your headset at a high volume level for a long time can cause hearing damage.
NOTE: Base station TALK buttons do not activate relay closures.