DX340ES
HD Wireless Headset System
Operating Instructions
HME# 400G757
Rev A 9/13/16
TABLE OF CONTENTS
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
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 modications 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 specied 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.
The HME logo and product names are registered trademarks of HM Electronics, Inc. All rights reserved.
© 2016 HM Electronics, Inc.
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 congured 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
1
SECTION 2. EQUIPMENT IDENTIFICATION
STANDARD EQUIPMENT
2
OPTIONAL EQUIPMENT
Headset with dual ear muffs
Model # CC-30-MD4
Headset extension cable, 6 ft (1.83 meter) Foam earmuffs for all-in-one headset
Rechargeable battery for base station Model #
BAT850
Headset, all-in-one, with battery
Model # WH340
Battery charger for base station batteries
Model # AC850
Remote antenna kit with 6 foot (1.83 meter) cable and
bracket
Adapter cable for headset with dynamic microphone
and XLR connector
Model # MD-XLR4F, MD-XLR4M, MD-XLR5F
Remote antenna kit with 30 foot (9.14 meter) cable
and bracket
3
EQUIPMENT FEATURES
Base Station
Top Panel
Battery compartment latches
Antennas
Power button
Left headset
volume control
Clear/Band button
Registration
button
Status indicator
Active communicator lights
Right headset volume control
Right talk lightsLeft talk lights
Right SELECT buttonLeft SELECT button
Right TALK buttonLeft TALK button
Reset switch
4
Front Panel
Left Side Panel
Auxiliary audio in/out
volume adjustments
(recessed)
Cable “input” from
another base station
Microphone gain adjustment
for left headset
Right Side Panel
Rear headset connector
Cable “output” to
another base station
Single/Dual channel mode
selection switch
Microphone gain adjustment
for right headset
Left headset connector
Primary/Secondary base
station selection switch
Rear Panel
Antenna connectors
8-pin connector for
equipment relay controlled
by beltpac buttons
Power supply connector
10-pin connector
for auxiliary audio
connection input/
output
5
Beltpac
X-channel
button
Power/X-channel
light
Headset cable
connector
All
button
Volume Down
button
O-channel
button
Power/O-channel
All-in-One Headset (optional)
Headband
slide-to-t
Power/
Talk light
Power
button
light
Power
button
Volume Up
button
Battery
Battery
release
latch
Volume Up
button
O-channel
button
X-channel
button
Microphone
boom
Sanitary muff
Talk
light
Volume Down
button
All
button
Battery release latch
(blue button)
Battery
6
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
1 Connect power supply to charger and electrical outlet.
2 Charge all beltpac batteries. Charging time is approximately three hours.
Status lights next to each charging port
Red light
Put up to 4 batteries in
charging ports
Storage ports for
charged batteries
• 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
Power Supply Cord
Put up to 4 batteries in charging ports
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.
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.
AC50 US and international
power supplies and adapters
7
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.
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).
90°
angle
Antenna connectors
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
8
Optional Battery Operation of Base Station
A base station can operate on battery power when AC power is unavailable.
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.
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.
Battery
compartment
latches
Battery sled
Battery
compartment
cover
BAT850 Battery
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
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.
9
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:
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, H or 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.
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, H or A that 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.
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
10
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.
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 OUT
connector
BASE IN
connector
Interconnect cable
First base station Next base station
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
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.
NOTE: Base station microphone gain is factory set at about one-third from minimum level.
Insert small screwdriver
Base station microphone
gain adjustment
11
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.
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.
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 briey on the STATUS window.
5 Repeat Steps 1 through 4 for each beltpac.
ALL button
Power button
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.
REGISTER
button
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.
12
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-inone 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.
1 Be sure the beltpac or all-in-one headset power is turned on.
2 While holding down the X 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.
Recommended microphone gain levels are:
• Beltpacs – 12 presses down from maximum.
• All-in-one headsets – 8 presses down from maximum.
NOTE: Microphone gain and sidetone adjustments will be saved in memory. A reset is not
required when the unit is turned off and on.
13
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
14
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.
Pin Connections
1 Aux In − O
2 Aux In − O
3 Aux Out − O
4 Aux Out − O
5 Ground
6 No Connection
7 Aux In − X
8 Aux In − X
9 Aux Out − X
10 Aux Out − X
Differential pair
Differential pair
Differential pair
Differential pair
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).
8 and 10-pin spring clamp connectors
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.
15
SECTION 4. EQUIPMENT OPERATION
THE BASICS
Base Station Operation
Headset volume
Channel select button
(O, All or X)
Green : Listen only
Red : Talk and listen
Channel select button
(O, All or X)
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.
CAUTION: Having your headset at a high volume level for a long time can cause hearing damage.
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.)
NOTE: Base station TALK buttons do not activate relay closures.
6 To turn base station off, press and hold POWER button until the lights turn off.
16
Beltpac / All-In-One Headset Operation
The O, X and ALL button functions described below are for operation in the standard default mode. The buttons can also
be set to function in other modes. See page 19 for operating mode setups.
1 Be certain a fully charged battery is in the unit.
2 If you’re using beltpac —
Plug the headset into beltpac, and place the headset on your head.
Slide beltpac into its pouch, and clip it on your belt.
3 Press and release the PWR (power) button to turn the unit on.
Beltpac power button
All-in-one headset power button (above earpiece on inside surface)
4 Press and release the O button to communicate with O-channel users, or press the X button to communicate with
X-channel users.
Speak to O-channel users and activate O relay
Speak to X-channel users and activate X relay
5 To communicate with both O and X channel users, press and hold the ALL button while talking.
Speak to all O and X channel users and activate both O and X relays
6 Adjust the beltpac or headset volume as needed.
Increase volume
Decrease volume
CAUTION: Having your headset at a high volume level for a long time can cause hearing damage.
7 To turn the unit off, press and hold the power button for about two seconds until you hear “Power off”.
17
Changing Batteries
Beltpac batteries typically provide 20 hours of continuous use in listen mode.
If you hear “Change battery” in your headset:
1 If you’re using beltpac, remove it from its pouch.
2 Slide the battery release latch in direction of the arrow.
3 Lift the battery out of beltpac.
4 If using a headset, press blue release button.
5 Slide the headset battery out from underneath.
6 Place the battery in the battery charger port for recharging.
7 Install a fully charged battery in the beltpac or headset.
8 If using a beltpac, place it back in its pouch.
Battery
release
latch
Battery
Battery
release
latch
Beltpac
Battery
All-in-one headset
18
Beltpac or All-In-One Headset Operating Mode Setup
Set up beltpacs and/or all-in-one headsets to operate in the desired mode by pressing and holding the button
combinations shown below. Button combinations work in unison with the PWR (power) button.
Mode Button Combination Button Functions
Head Coach (default) Hold X + O + ALL and press PWR
NOTE: Beltpacs and all-in-one headsets are shipped in the default mode.
O-channel only Hold O and press PWR
O-channel + ALL Hold O + ALL and press PWR
X-channel only Hold X and press PWR
X-channel + ALL Hold X + ALL and press PWR
O-channel + X-channel only Hold X + O and press PWR
Latching (Hands-Free, Full-Duplex)
Hold ALL + and press PWR
X, O & ALL have normal
functions
X & O work as O
ALL has no function
X & O work as O
ALL has normal function
X & O work as X
ALL has no function
X & O work as X
ALL has normal function
X & O have normal functions
ALL has no function
X & O will latch on when
pressed and released, for a
normal two-way conversation
Push-To-Talk (PTT)
NOTE: Mode settings will be stored to memory, so your beltpacs and/or all-in-one headsets will
have the same mode settings each time you power them off and on.
NOTE: ALL does not latch on, and must be held down to hear both O and X.
Hold ALL + and press PWR
X, O & ALL must be pressed
and held while you talk, and
released to listen
19
RADIO APPLICATIONS
Emergency Services
Operating Scenario
● All crew members will hear both the Crew Channel and Radio Channel simultaneously.
● All crew members have the ability to talk to other crew members in either Latching (hands-free) or PTT
(push-to-talk) modes, using either the O or X buttons.
● All crew members have the ability to talk to the radio channel in a PTT mode, using the ALL button.
Beltpac Conguration
● Set for Latching mode with the O and ALL buttons enabled.
● The X button will work as a second O button.
NOTE: Application shown is for radio equipment requiring Ext MIC PTT connection to be pulled low to
key radio transmitter.
20
Production Crew with Separate Radio Channel
Operating Scenario
● Production Manager will monitor Radio Channel and Production Crew Channel simultaneously, hands free.
Production Manager can selectively talk to Radio channel or Production Crew Channel.
● Production Crew members will hear and talk to Production crew members only.
● Radio Crew members will hear and talk to radio Crew members only.
Beltpac Conguration
● Production Manager Beltpac set for X and O and ALL (monitor on O).
● Crew Beltpac set for X only.
NOTE: Application shown is for radio equipment requiring Ext MIC PTT connection to be pulled low to
key radio transmitter.
21
SECTION 5. TROUBLESHOOTING
If you are unable to correct any of the problems described below or if your problem is not covered, call 1-800-848-4468 for
assistance.
1 Power light on base station does not come on when power button is pressed.
● Be sure the power supply is properly connected to the base station, and the power cord is properly connected to
the power supply and electrical outlet.
● If operating on battery power, be sure the battery is charged and in the battery compartment with the cover is
securely closed.
2 Beltpac/Headset power lights do not turn green.
● Be sure the base station power is on.
● Turn beltpac/headset power on and off.
● Beltpac/Headset may be too far from the base station.
3 When trying to register a beltpac/headset, you hear “registration failed”.
● Press the RESET button on the base station with the point of a pen.
● The STATUS window will show “8” and then become blank.
● Try again to register the beltpac/headset.
● If registration fails again, call your dealer for assistance.
4 No one can hear me when I talk.
● Be sure you are pressing the X or O button on the beltpac/headset or the TALK button on the base station.
● Be sure you are pressing the button for the correct channel.
● Be sure the headset plug is properly connected to the beltpac or base station.
5 With more than one base station, one base station operator cannot hear O or ALL transmission from another
base, or another base station operator cannot hear X or ALL transmission from another base.
● Be sure interface cable is properly connected from BASE OUT on one base station to BASE IN on
the next base station, and so on.
● If problem is not resolved, try using a different interface cable.
6 No or low auxiliary audio sound.
● Check wiring from auxiliary equipment to AUX AUDIO connector on back of the base station.
● Turn AUX AUDIO adjustments on front of base station with a small standard (at) screw driver, clockwise to
increase level and counterclockwise to decrease level.
7 Beltpacs or all-in-one headset users cannot hear or talk to base station operators using base station
headsets.
● Be sure base station headsets are fully plugged into the base station headset connectors.
● Be sure the appropriate SELECT lights are red (O, X or ALL) when base station operators are talking.
● Be sure everyone talking or listening is on the right channel (O, X or ALL).
22
8 Beltpac range is bad.
● Be sure antennas are properly connected and tightened on base station.
● Be sure base station is positioned where there are no physical obstructions blocking line-of-sight from the
base station to the beltpacs and/or all-in-one headsets.
9 Beeping is heard in base station headset and SELECT lights are blinking.
● Base station is operating on battery power, and the battery is low.
10 Not all beltpac buttons are working.
● Button functions may have been changed to work in the desired operating mode (see page 19).
11 There is interference from a cordless telephone.
● If there is a 2400MHz cordless telephone nearby, interference may occur.
● If it does occur, changing frequencies on the telephone should eliminate the problem.
● If it does not, move the phone as far as possible from the base station, or use another type phone.
(If your base station does not have a battery backup)
In the event of an electrical power outage, such as from lightning or a power generator failure, if you
experience problems with your DX340ES equipment after the power comes on again, unplug the AC
power supply from its electrical outlet and wait 15 seconds, then plug it back in.
23
FREQUENTLY ASKED QUESTIONS
1 Are the battery charger and base station power supplies interchangeable?
Yes, but it is NOT interchangeable with the AC50 battery charger.
2 What is the maximum recommended number of base stations that can be linked together with
interconnect cables?
Four.
3 Can I use more than three beltpacs on a single base station in dual channel mode?
Yes, but only three users will be able to transmit at the same time. Up to 15 beltpacs can be registered to a single base
station. Beltpacs and all-in-one headsets should be placed in press-to-talk mode when more than three beltpacs or all-inone headsets are used.
4 What should I do if my carrying case and equipment get wet?
Dry them out thoroughly before further use. Be sure all equipment is dry before using it again.
CAUTION: Plugging wet electrical equipment into an AC power outlet is dangerous!
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SECTION 6. TECHNICAL DATA
EQUIPMENT SPECIFICATIONS
Base Station
GENERAL
Frequency Range: .............. All, 2400 – 2483.5 MHz
Low, 2401.92 to 2439.94 MHz
High, 2443.39 to 2481.41 MHz
Frequency Response: ........... 200 Hz to 7 kHz
Power Requirements: . . . . . . . . . . . 100-240VAC, 50-60Hz
12-14VDC or six AA batteries (NiMH optional)
Temperature Range: ............ 32-122°F (0-50°C)
Size: ......................... 8” x 8” x 3.5” (20.32 x 20.32 x 8.89 cm)
Weight: ....................... 2.75 lb with battery (1.25 kg)
# of Beltpacs per Base: .......... 15 can be registered; any 3 full simultaneous full-duplex in 2-channel mode
8-Wire I/O: ..................... RJ45, 600Ω balanced out, high impedance in
Auxiliary Audio: ................ 10-Ckt Phoenix connector, 600Ω balanced out, high impedance in, level adjustable
Headset Connectors: ........... 4-pin mini-DIN
Electret microphone: ............ 45 KΩ
Headset Output: ................ 200mW into 32Ω
Top Panel Controls & Indicators: .. Power button
Left and Right headset controls
Rotary knobs for headset volume (VOL) adjustment
Headset SELECT buttons (O=Offense, X=Defense or ALL)
Headset TALK buttons
Registration controls
CLEAR/BAND button
REGISTER button
RESET switch (recessed)
STATUS indicator
Headset transmit dual-color LEDs, left and right (red/green) – O, X, ALL
RECEIVE LEDs (green) – O, X, ALL
Front Panel: ................... Auxiliary input and output level adjustments
Left Panel: .................... 8-wire audio port
Microphone gain adjustment
Left headset connector
Right Panel: ................... Right headset connector
Microphone gain adjustment
8-wire audio port
Single/Dual selection switch
Primary/Secondary selection switch (Disabled in this version)
Rear Panel: .................... Auxiliary input and output connectors
Antenna connectors
Antenna Type: ................. External ½ -wave dipole (R-TNC connector)
RX/TX horizontal/vertical diversity
System Distortion: .............. <2%
Communication Security: ........ 64-bit encryption dual-slot diversity
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TRANSMITTER
Type: ......................... Frequency hopping, spread spectrum
Transmit Power: ................ 100mW burst
Modulation Type: ............... Gaussian ltered FSK, TDMA
Frequency Stability: ............ 13 ppm
Harmonics/Spurious: ........... Exceeds FCC and ETSI specications over temperature
RECEIVER
Type: ......................... Frequency hopping, spread spectrum
RF Sensitivity: . . . . . . . . . . . . . . . . . <–90dBm w 10-3 BER
Frequency Stability: ............ 13 ppm
Distortion: .................... <2%
Beltpac
Frequency Range:*.............. 2400 MHz – 2483.5 MHz
Antenna: ...................... Internal, horizontal/vertical diversity
Frequency Response: ........... 200 Hz to 7 kHz
Transmit Power: ................ 100mW burst
RF Sensitivity: . . . . . . . . . . . . . . . . . <–90dBm w 10-3 BER
Battery Requirements: .......... 3.6V lithium ion, rechargeable
Battery Life: . . . . . . . . . . . . . . . . . . . Hands-free – up to 14 hours
PTT – up to 20 hours
Temperature Range: ............ 32-122°F (0-50°C)
Weight: ....................... 7.4 oz (.21 kg) with battery and pouch
Headset Connector: ............ 4-pin, mini-DIN
Microphone: ................... Electret
Headset Output: ................ 160mW into 32Ω
Controls: ...................... Power PWR, Volume-up , Volume-down , O, X, ALL
Indicators: .................... Dual-color LED (red/green)
All-In-One Headset
Frequency Range:*.............. 2400 MHz – 2483.5 MHz
Antenna: ...................... Internal
Frequency Response: ........... 200 Hz to 7 kHz
Transmit Power: ................ 100mW burst
RF Sensitivity: . . . . . . . . . . . . . . . . . <–90dBm w 10-3 BER
Battery Requirements: .......... 3.6V lithium ion, rechargeable
Battery Life: . . . . . . . . . . . . . . . . . . . Hands-free – up to 14 hours
PTT – up to 20 hours
Temperature Range: ............ 32-122°F (0-50°C)
Weight: ....................... 5.7 oz (.16 kg) with battery
Microphone: ................... Electret
Headset Output: ................ 160mW into 32Ω
Controls: ...................... Power, Volume-up , Volume-down , O, X, ALL
Indicators: .................... Transmit LED (red in defense / green in offense)
Power LED (red/green)
* Communicators will follow the frequency range determined by the setting on the Base Station (e.g. All, Low or High).
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27
Base Station Block Diagram
SECTION 7. SECTION INDEX
Base Station
Audio connection (multiple base stations) ..........................................11
Features .....................................................................4
Microphone gain adjustment ....................................................11
Operation ...................................................................16
Setup (single base station).......................................................8
Setup for optional battery operation ................................................9
Single/dual channel setting......................................................11
Specications ................................................................25
Battery charger setup ...........................................................7
Beltpac
Changing batteries ...........................................................18
Features ....................................................................6
Microphone gain adjustment ....................................................13
Operating mode setup .........................................................19
Operation .................................................................. 17
Registration .................................................................12
Side tone adjustment ..........................................................13
Specications ................................................................26
Block diagram................................................................27
Equipment
Basic 5-coach layout ...........................................................1
Extended 10-coach layout .......................................................1
Optional .....................................................................3
Standard.....................................................................2
Headset, all-in-one
Changing batteries ............................................................18
Features .....................................................................6
Operating mode setup .........................................................19
Operation ...................................................................17
Registration .................................................................12
Specications ................................................................26
Interference Avoidance.........................................................10
Optional equipment installation
Auxiliary equipment connection ..................................................15
Remote antennas .............................................................14
Troubleshooting ..............................................................22
Frequently Asked Questions.....................................................24
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