HME DX200 User manual

HME# 400G527
Rev D 6/23/05
DX200
Wireless Intercom
Operating Instructions

Table of Contents
SECTION 1. INTRODUCTION...............................................................................................................1
EQUIPMENT IDENTIFICATION...............................................................................................................2
MAIN EQUIPMENT FEATURES...............................................................................................................3
Base Station Features...............................................................................................................................3
Beltpac Features.......................................................................................................................................4
SECTION 2. EQUIPMENT SETUP........................................................................................................5
BATTERY CHARGER SETUP...................................................................................................................5
Connect AC Power Supply.......................................................................................................................5
Charge Batteries.......................................................................................................................................5
BASE STATION SETUP............................................................................................................................6
Equipment Connections ...........................................................................................................................6
BELTPAC SETUP AND REGISTRATION.................................................................................................7
Set Up Beltpacs........................................................................................................................................7
Register Beltpacs.....................................................................................................................................7
INTERCOM AND AUXILIARY EQUIPMENT SETUPS...........................................................................9
2-Wire Intercom.......................................................................................................................................9
4-Wire Intercom.......................................................................................................................................9
Auxiliary Equipment..............................................................................................................................10
8-Ohm Speaker......................................................................................................................................10
Multiple DX200 Units............................................................................................................................10
SECTION 3. EQUIPMENT OPERATION...........................................................................................11
BASE STATION OPERATION ................................................................................................................11
Front Panel Controls, Indicators and Connector......................................................................................11
BELTPAC OPERATION ..........................................................................................................................13
Beltpac Controls and Indicator Lights.....................................................................................................13
Microphone Gain Adjustment ................................................................................................................14
Batteries ................................................................................................................................................14
SECTION 4. TROUBLESHOOTING....................................................................................................15
SECTION 5. TECHNICAL DATA........................................................................................................16
EQUIPMENT SPECIFICATIONS.............................................................................................................16
Base Station...........................................................................................................................................16
Beltpac ..................................................................................................................................................17
BLOCK DIAGRAM..................................................................................................................................18
DX200 Base Station...............................................................................................................................18
© 2005 HM Electronics, Inc.
The HME logo and product names are registered trademarks of HM Electronics, Inc. All rights reserved.
Illustrations in this publication are approximate representations of the actual
equipment, and may not be exactly as the equipment appears.
HM Electronics, Inc. is not responsible for equipment malfunctions due to
erroneous translation of its publications from their original English version.

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 complywith 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 modifications not expressly approved by HM Electronics, Inc. could void the users authority
to operate this equipment.
Hereby, HM Electronics, Inc. declares that the DX200 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 contactyour Spectrum authoritytodetermine possible restrictions.
MANDATORY SAFETY INSTRUCTIONS
FOR INSTALLERS AND USERS
Use onlymanufacturer or dealer supplied antennas.
The Federal Communications Commission has adopted a safety standard for human exposure to RF (Radio
Frequency) energy, which is below the OSHA (Occupational Safety and Health Act) limits.
The term “IC:” before the certification/registration number only signifies that the Industry Canada technical
specifications were met.
Base Station Antenna minimum safe distance: 7.9 inches (20 cm) at 100% duty cycle.
Base Station Antenna gain: This device has been designed to operate with an antenna having a maximum
gain of up to 7dBi.
Antenna mounting: The antenna(s) used for the base transmitter must be installed to provide a separation
distance of at least 7.9 inches (20 cm) from all persons and must not be co-located or operating in conjunction
with any other antenna or transmitter.
Antenna substitution: Do not substitute any antenna for the one supplied by the manufacturer or radio dealer.
You may be exposing person or persons to excess radio frequency radiation. You may contact your radio
dealer or the manufacturer for further instructions.
WARNING: Maintain a separation distance from the base station transmit antenna to a person(s) of at least
7.9 inches (20 cm) at 100% duty cycle.
You, as the qualified end-user of this radio device must control the exposure conditions of bystanders to ensure
the minimum separation distance (above) is maintained between the antenna and nearby persons for satisfying
RF exposure compliance. The operation of this transmitter must satisfy the requirements of
Occupational/Controlled Exposure Environment, for work-related use. Transmit only when person(s) are at
least the minimum distance from the properly installed, externally mounted antenna.

1
The DX200 provides private, secure communication. Each base station can have up to fifteen Beltpacs
“registered” to it. Four of the fifteen Beltpacs can transmit at the same time. However, by connecting two or
more base stations together, these numbers can be increased. For example, two base stations can support thirty
Beltpacs, of which eight can transmit at the same time. Beltpacs can be used either in the push-to-talk or hands-
free mode. The base station operator can stop any Beltpac from transmitting.
The DX200 can be used with RTS®and Clear-Com®cabled intercom systems. On the intercom channel, 2-wire
and 4-wire cabled intercoms can be operated at the same time. Also, using the AUX In and AUX Out
connections, a second 4-wire intercom channel can be used.
Either a monitor speaker or a local headset can be used with the DX200. Using a local headset, the base station
operator can talk to crew members on the cabled intercom channel, Beltpacs only or all channels.
The base station can be operated using standard DC electricity or a vehicle electrical system for mobile
operation. A power supply and cable are included with the base station.
SECTION 1. INTRODUCTION

2
HS12 Headset
AC40A Battery Charger
EQUIPMENT IDENTIFICATION
The following equipment is standard with the DX200 Wireless Intercom System.
As you unpack the equipment, check the packing list to be sure you received all items listed.
Base Station Antennas
(2 per Base Station)
115/230 Volt AC Power Supply
(1 per Base Station, with Power Cables)
(1 per AC40A Battery Charger, with Power Cables)
BP200 Belt
p
ac
OPTIONAL EQUIPMENT
HS4-3 Single Earpiece & Lapel Microphone
HS14 Single-Muff Medium-Weight Headset
HS20-3 Dual-Earpiece Lightweight Headset
XLR Headset Adapters:
MD-XLR4M Mini-DIN to 4-Pin Male
MD-XLR4F Mini-DIN to 4-Pin Female
MD-XLR5F Mini-DIN to 5-Pin Female
BS200 Base Station
Beltpac Battery
Belt
p
ac Pouch

3
24 25 26 27 28 29 30 31 32 33 34 35 36
MAIN EQUIPMENT FEATURES
Base Station Features
Front Panel
1. POWER switch
2. RESET REGISTRATION button
3. REGISTRATION STATUS display
4. UNLATCH switch
5. IC (Intercom) receiver level control and
indicator light
6. ISO (Isolate) receiver level control and
indicator light
7. 2W and 4W indicator lights
8. SND and RCV (Send and Receive) controls
9. AUX IN and OUT (Auxiliary In and Out)
controls
10. LOCAL HEADSET VOLUME control
11. LOCAL HEADSET ISO indicator light
12. LOCAL HEADSET IC indicator light
13. LOCAL HEADSET MIC LEVEL control
14. LOCAL HEADSET TALK indicator light
15. LOCAL HEADSET cable connector
16. RESET button (recessed)
17. REGISTER BELTPAC button
18. 2W/4W button
19. 4W ONLY button
20. AUX IN button
21. ISO+ button
22. LOCAL HEADSET IC/ISO SELECT button
23. LOCAL HEADSET TALK button
Rear Panel
24. CLEAR-COM / RTS TW button
25. RTS CHANNEL select button
26. 2-Wire intercom connector (female)
27. NULL control
28. 2-Wire intercom connector (male)
29. 4-Wire connector
30. 0oANTENNA connector
31. 90oANTENNA connector
32. AUX IN connector
33. AUX OUT connector
34. 8-OHM SPKR 2-pin Phoenix connector
35. Power connector
36. Chassis ground connector
16 17 18 19 20 21 22 23
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

4
Beltpac Features
1. Headset cable connector
2. Beltpac power lights
3. ISO (Isolate) button
4. IC (Intercom) button
5. PWR (Power) button
6. Volume-up button
7. Volume-down button
8. Battery
9. Battery release latch
2 3 4 2
1
5
6
7
8 9

5
BATTERY CHARGER SETUP
IMPORTANT! – Before installing the system, connect the AC power supply to the battery charger and plug
it into an electrical outlet. Charge all the Beltpac batteries while the other equipment is being installed.
Charging time is about 2.5 hours.
Connect AC Power Supply
• Attach the AC power supply cable connector to the screw connector on the battery charger.
• Plug the power cable connector into the AC power supply.
• Plug the power cable into an electrical outlet.
The red lights on the charger will come on and go off, and then the yellow lights will come on and stay on.
Charge Batteries
Up to four batteries can be charged in the battery
charger at the same time. The battery status lights
next to each charging port are explained below.
Up to six fully charged batteries can be stored in the
battery storage ports.
• Insert a battery in each of four charging ports
until it clicks in place.
• A yellow light next to each charging port stays on
while the port is empty. When a battery is in a
charging port, a flashing yellow light next to it
indicates CHARGE PENDING, which means the
battery is too hot. Adjust the room temperature or
move the charger to a cooler area. When a batteryis
in a charging port, a yellow light on steadynext toit
means CHARGE FAILED. If this happens, follow
the instructions on the side of battery charger.
• A red CHARGING light next to a battery port
stays on while a battery in the port is charging.
A green READY light next to a battery port goes
on when a battery in the port is fully charged.
Store fully charged batteries in storage ports.
Batteries should not be left in charge ports after being
fully charged. If a battery is left in a charge port for
more than three weeks, the yellow indicator maylight
up. In this case, it does not indicate a faulty battery.
SECTION 2. EQUIPMENT SETUP
Power cable
connector
Charged batteries
in storage ports
Battery in
charging port
Empty
charging ports
AC
p
ower su
pp
l
y
Power supply
cable connector
Batter
y
char
g
er
To electrical
outlet

6
BASE STATION SETUP
The following description is for a basic, stand-alone DX200 system setup. Connections with 2-wire and 4-wire
intercoms, and other auxiliary equipment are described in the INTERCOM AND AUXILIARY EQUIPMENT
SETUPS on pages 9 and 10.
Equipment Connections
Rear Panel
Front Panel
The numbers (# ) below refer to items on the illustrations above.
Step 1. Connect the two enclosed antennas to the antenna connectors (#1and #2) on the rear panel of the base
station. Position the antenna at the 0° ANTENNA connector (#1) vertically. Position the antenna at the 90°
ANTENNA connector (#2) horizontally, pointing to the left as indicated on the panel. Turn the sleeve on
each of the antenna connectors clockwise to tighten them securely in place.
Step 2. Plug the connector at the end of the AC power supply cord into the 12-14VDC power connector (#3) on the
rear panel of the base station. Turn the nut on the cable connector clockwise to secure it to the base station.
Plug the large female connector at one end of the AC power cord into the power supply. Plug the other end
of the AC power cord into an electrical outlet.
Step 3. Connect a grounding wire from #4to an earth ground.
Step 4. Plug a headset into the HEADSET connector (#8) on the front panel of the base station.
Step 5. Press the POWER switch (#5) to turn on the base station. The red light on the switch should go on.
1 2 3 4
85 6 7

7
BELTPAC SETUP AND REGISTRATION
The first time you operate the DX200 system, you must register each Beltpac for use with a specific base
station. The base station will then recognize all registered Beltpacs when their power is on, and will know the
difference between them and other electronic equipment operating on the same frequencies. If a Beltpac is added
or replaced later, the new one must be registered and theold oneremainsin memory. A maximum of 15
Beltpacs can be registered to a single base station at one time.
Set Up Beltpacs
Before registering them, set up all Beltpacs as follows.
Step 1. Insert a fullycharged battery in the
Beltpac, with the metal contacts on
the end of the battery inserted first.
Press it in until it snaps.
Step 2. Place the Beltpac in the pouch.
Step 3. Plug the headset cable connector into the Beltpac.
Register Beltpacs
Beltpacs must be within 6 feet (1.83 meters) of the base station while you are registering them. Be certain the
base station power is on, and each Beltpac you are going to register is turned off before you begin. Beltpacs that
are already registered can be on or off.
Step 1. Put the headset, of the Beltpac being registered, on your head.
Step 2. Press the REGISTER BELTPAC button on the front panel of the base station (#7on base station front
panel illustration).
• The REGISTRATION STATUS display (#6on base station front panel illustration) will show a
small “o” for open.
NOTE: If you wait too long before going on to Step 3, the base station will go out of the registration
mode and you will have to repeat Step 2.
Step 3. Press and hold the ISO button on the Beltpac while you press and
release the PWR (power) button to turn the unit on, then release the
ISO button. This will cause the Beltpac to enter the registration mode.
• The two power lights at the corners of the Beltpac near the IC
and ISO buttons will begin blinking red, then will blink green
two or three times and go off.
• Wait! There may be a short delay.
If registration is successfully completed:
• A voice message in the headset will say “Power on, Beltpac #, Version #, Begin registration, Registration
complete, …”
• After a delay of up to 15 seconds, the REGISTRATION STATUS displaywill showthe ID number assigned
to this Beltpac for about 10 seconds.
NOTE: ID numbers are assigned sequentially as 0 thru 9, A, b, C, d and E.
• The power light on the Beltpac, next to the IC button, will remain on steady green.
• Repeat Steps 1 to 3 above for each Beltpac to be registered.
Ste
p
1
Ste
p
2 Ste
p
3

8
If registration failed:
• A voice message in the headset will say “Power on, Beltpac #, Version #, Begin registration, …” Both
power lights on the Beltpac will be blinking red, and there may be a delay of up to 90 seconds before you
hear “Registration failed.”
• Press the RESET button on the base station. To press the RESET button, insert a small paper clip or
similar object into the RESET hole at the lower-left corner of the base station front panel. When the
REGISTRATION STATUS display becomes blank, press the REGISTER BELTPAC button and register
the Beltpac again. If registration fails again, call your dealer for assistance.
If you try to register more than 15 Beltpacs:
• An Fwill appear on the REGISTRATION STATUS display on the
base station and you will hear “Registration failed” in the headset.
• Clear all current registrations bypressing the RESET
REGISTRATION button and the RESET button at the same time.
To press the RESET button, insert a small paper clip or similar
object into the RESET hole at the lower-left corner of the base
station front panel. Continue holding the RESET REGISTRATION button after you release the RESET
button, until the clear code “c” (lower case) appears on the REGISTRATION STATUS display.
• Register all active Beltpacs, one at a time. Previouslyregistered Beltpacs must be re-registered.
NOTICE
You have completed the stand-alone system setup.
The instructions under INTERCOM AND AUXILIARY EQUIPMENT SETUPS on the following pages
are for setting up additional equipment which you may want to use with your DX200, such as a 2-wire
intercom, 4-wire intercom, an external speaker or other auxiliary audio equipment. Instructions are also
provided for daisy-chaining two or more base stations together.

9
INTERCOM AND AUXILIARY EQUIPMENT SETUPS
Rear Panel
Front Panel
The numbers (# ) below refer to items on the illustrations above.
2-Wire Intercom
Step 1. If using a 2-wire intercom, plug it into the base station at #3or #5, depending on whether a male or female
connection is required.
Step 2. Depending on whether you are using a Clear-Com® or RTS® compatible 2-wire intercom system, position
the CLEAR-COM / RTS TW button (#1) as follows:
In position = RTS® Mode Out position = Clear-Com® Mode
Step 3. If you selected RTS TW, position the RTS CHANNEL select button (#2) to the desired channel as follows:
Out position = Channel 1 In position = Channel 2
Step 4. Press the 2W/4W button (#25) on the front panel of the base station. The 2W and 4W lights (#15) above the
button should go on. Turn the Beltpac power on. Press the IC button on the Beltpac pressed and speak into
the headset microphone. You will hear a delayed echo of your voice. Adjust the NULL control (#4) with a
small screwdriver while you are speaking, until the echo is eliminated.
4-Wire Intercom
Step 1. If using only a 4-wire intercom, plug it into the 4-WIRE connector (#6).
Step 2. Press the 4W ONLY button (#26). The 4W light (#15) above the button should go on.
Step 3. Adjust the 4-wire intercom send and receive levels with the SND and RCV controls (#16).
Pin designations for the RJ45
4-WIRE connector are as follows: Pins 1, 2, 7 & 8 = N/C
Pin 3 = Intercom Out +
Pin 4 = Intercom In +
Pin 5 = Intercom In –
Pin 6 = Intercom Out –
NOTE: If no 2-wire intercom will be used, you must press the 4W ONLY button (#26), or a squeal will be
heard in the headsets.
1 2 3 4 5 6 7 8 9
23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22

10
The numbers (# ) below refer to items on the illustrations on page 9.
Auxiliary Equipment
Step 1. If using auxiliary equipment, such as another intercom, a CD player or other audio source, connect its
output cable connector (male) to the AUX IN connector (#7), and its input cable connector (female) to
the AUX OUT connector (#8) (if applicable).
The cable connectors must be 3-pin
XLR type for balanced +20dBV Pin 1 = Ground
maximum audio input/output, with Pin 2 = Audio +
the following pin connections: Pin 3 = Audio –
Step 2. If the auxiliary equipment provides audio input only, press the AUX IN button (#27). The light above the
button (#17) should go on. Listen to the audio input in your headset as you adjust the IN control (#17)
above the light to the desired level.
Step 3. If the auxiliaryequipment requires two-way communication, have someone listening at the auxiliary unit.
Press the ISO+ button (#28) on the front panel of the base station. The light above the button should go on.
While speaking into your headset microphone, adjust the OUT control (#17) above the light to the desired
listening level at the auxiliaryunit. Listen to the audio input in your headset as you adjust the IN control
(#17) above the light to the desired level.
8-Ohm Speaker
Step 1. If an external 8 ohm speaker will be used, connect its cable wires to the 8 OHM SPKR 2-pin Phoenix
connector (#9).
Step 2. Adjust the speaker volume with the LOCAL HEADSET VOLUME control knob (#18).
NOTE: Either a local headset or an external speaker can be used, but not both. The LOCAL HEADSET
VOLUME control knob is the adjustment for both.
Multiple DX200 Units
Two or more DX200 units can be “daisy-chained” together with cables connected to the 2-wire connectors
(#3and #5) on the rear panels of each base station, following Clear-Com®/RTS®standards.
NOTE: DX200 does not provide or require 2-wire line power.
The cable connectors must be
3-pin XLR type for balanced RTS®Mode Clear-Com®Mode
+20dBV maximum audio Pin 1 = Common Pin 1 = Common
input/output, with the Pin 2 = Channel 1 Pin 2 = N/C
following pin connections: Pin 3 = Channel 2 Pin 3 = Audio
If “daisy-chaining” multiple base stations, you must do the following:
Step 1. Remove the cover from one of the base stations and
locate the JP1 jumper on the main circuit board.
Slide the jumper to the upward position
and replace the cover on the base station.
Be sure you do this in only one base station.
Step 2. For each base station, follow all the steps for
the base station setup on page 6.
+
JP1
Jumper

11
BASE STATION OPERATION
Front Panel Controls, Indicators and Connector
1. POWER Switch
Press the upper part of the switch to turn the power on. A red light on the switch will be lit when the base
station power is on. Press the lower part of the switch to turn the power off. The red light will go off. All
settings are preserved when the power is turned off, and will be restored when the power is turned on again.
2. Beltpac Registration Controls and Status Indicator
Use these controls to register each Beltpac used with a specific base station, as described on pages 9 and 10.
3. UNLATCH Button
Use this button to unlatch all Beltpac transmitters. (Beltpac users can “latch” their Beltpacs on, in order totalk
and listen to each other. Base station operators can usethe UNLATCH button to stop Beltpacconversations,in
order to have uninterrupted communication with the Beltpac users.)
4. IC (Intercom) and ISO (Isolate) Receiver Indicators and Controls
Lights indicate whether Beltpac reception is IC or ISO. Use IC and ISO controls to independently adjust
IC and ISO receive levels. NOTE: This adjustment does not affect Beltpac-to-Beltpac communication.
5. Local Headset Connector, Indicators and Controls
• Adjust the microphone level control, above the TALK button on the front panel, to mid-point. The
level can be readjusted during use, as needed.
• Adjust the receive level by turning on a Beltpac, speaking into the Beltpac headset microphone and
listening through the local headset earpiece while adjusting the VOLUME control on the base station to
the desired level.
• Use the SELECT button to select communication via IC or ISO. Above the SELECT button, the
indicator light will be lit for the selection you made. IC will allow you to communicate via the intercom
channel. ISO will send your audio to Beltpacs and auxiliary output if ISO+ is enabled (See #7above).
NOTE: If neither 2W nor 4W is on, this will have no effect. It will stay on ISO.
• For open communication, press and release the TALK button quickly to “latch on.” To “latch off,”
press and release the button again quickly.
• For momentary communication, press and hold the TALK button for more than one second. In this
mode, the selected channel will remain open only as long as you are pressing the TALK button.
The TALK light indicates the TALK mode is active via the local headset.
• Use the TALK control knob to adjust the outbound audio level from the local headset microphone.
• Use the VOLUME control knob to adjust the input to the local headset earpiece.
SECTION 3. EQUIPMENT OPERATION
1 3 4
2 6 7 5
The following base station indicators and controls are used only if 2-wire or 4-wire
intercoms, or other auxiliary equipment is being used with the DX200, as described under
INTERCOM AND AUXILIARY EQUIPMENT SETUPS on pages 9 and 10.

12
6. 2Wire/4Wire IC Indicators and Controls
The 2W/4W button turns on/off both 2-wire and 4-wire intercoms simultaneously. The 2W light above the
button indicates intercom on/off status. The 4W ONLY button turns on/off the 4-wire intercom alone. The
4W light above the button indicates intercom on/off status. Use the SND and RCV controls in the outlined
area to adjust the 4-wire intercom send and receive levels.
7. AUX IN and ISO+ Indicators and Controls
The AUX IN button enables/disables the auxiliary input. The light above the button indicates auxiliary
equipment’s on/off status. IN and OUT controls adjust auxiliary inbound and outbound audio levels.
ISO+ button enables/disables the AUX IN / OUT audio input and output. The light above the button
indicates ISO+ on/off status. Either AUX IN or ISO+ can be on, but not both at the same time. If ISO+
is on and you push the AUX IN button, ISO+ will automatically go off when AUX IN goes on, and vice versa.
Enabling ISO+ will open an audio path from the Beltpacs and local headset to AUX OUT.

13
BELTPAC OPERATION
Beltpac Controls and Indicator Lights
The Beltpac control buttons have a snap action. They will activate when
pressed firmly. Use your fingertips, not your fingernails, to press the buttons.
Power On/Off
• Power On – Press and release the PWR (power) button.
A voice message in the earpiece will say “power on,” and the red power lights
at the corners of the IC and ISO buttons will go on. After a short time, one light
will go off and the other will change to green, indicating the Beltpac is ready for use.
The REGISTRATION STATUS indicator on the base station will momentarily indicate the ID of the Beltpac.
• Power Off – Press and hold the PWR button for approximately two seconds.
A voice message in the earpiece will say “power off,” and the green power light will go off.
NOTE: While the Beltpac is transmitting, the green power light will be flashing.
The green power light will be on steady whenever the Beltpac is ready, but not transmitting.
ISO (Isolate) and IC (Intercom)
Use the ISO button to communicate with other Beltpac users and the DX200 base station operator.
Pressing ISO on the Beltpac will send audio to AUX OUT if ISO+ button on the base station is on.
Use the IC button to communicate via the intercom channel and with the DX200 base station operator, or
anyone listening to a local speaker connected to the DX200 base station. Pressing IC on the Beltpac will send
audio to the intercom if intercom is on.
• Push-To-Talk Mode Setting – To set the Beltpac for push-to-talk (PTT) communication, with the power
off, press and hold the volume-down Tand ISO buttons while you press and release the PWR (power) button.
You will hear “Hands-free off” in the headset earpiece. Press and hold the IC or ISO button while talking.
• Hands-free Mode Setting – To set the Beltpac for hands-free communication, with the power off,
press and hold the volume-up Sand ISO buttons while you press and release the PWR (power) button. You
will hear “Hands-free on” in your headset earpiece. When set up for hands-free communication, the Beltpac
can be operated in either hands-free or PTT.
NOTE: The above settings are saved in memory and only need to be repeated when you want to change between
hands-free and PTT operation. When changing modes, if both power lights begin blinking, turn the Beltpac
off and begin again.
Hands-free and Push-To-Talk mode settings affect both IC and ISO. Individual adjustmentisnot possible.
• Push-To-Talk Mode Operation – press and hold the IC or ISO button for more than one second. In
PTT operation, audio will be transmitted only while you are pressing the IC or ISO button.
• Hands-free Mode Operation – Quickly press and release the IC or ISO button to “latch” the
transmitter on. Talk and listen, as in a normal telephone conversation. Press and release the IC or ISO
button again to “unlatch,” to end the conversation. All Beltpacs can be unlatched bythe basestation operator,
by pressing the UNLATCH button on the base station.
NOTE: In hands-free mode, pressing the IC button while latched in ISO will latch on IC. Pressing the ISO
button while latched in IC will latch on ISO.
Volume Up/Down
• Volume Up Adjustment – Each time you press and release the volume-up Sbutton, a beep will be
heard in the earpiece as the volume increases one step. If you press and hold the volume-up button, repeating
beeps will be heard as the volume steps up to maximum. When maximum volume is reached, “maximum”
will be heard in the earpiece, and will be repeated until you release the volume-up button.
• Volume Down Adjustment – Each time you press and release the volume-down Tbutton, a beep will
be heard in the earpiece as the volume decreases one step. If you press and hold the volume-down button,
repeating beeps will be heard as the volume steps down to minimum. When minimum volume is reached,
rapidly repeating beeps will be heard.

14
Microphone Gain Adjustment
Some users talk louder or softer than others. To allow for this, microphone gain adjustment is provided.
To increase microphone gain – Press the volume-up Sbutton while holding down the ISO button in
the normal operating mode. The microphone gain increase can be monitored through sidetone, or preferably by
someone else on a Beltpac or at the base station.
To Decrease microphone gain – Press the volume-down Tbutton while holding down the ISO button
in the normal operating mode. The microphone gain decrease can be monitored through sidetone, or preferably
by someone else on a Beltpac or at the base station.
NOTE: You will hear “Maximum” if you attempt to go higher than maximum microphone gain.
You will hear beeps if you attempt to go lower than minimum microphone gain.
Microphone gain will be saved in non-volatile memory and does not require readjustment each time
the power is turned on.
Batteries
Change Batteries
When a battery becomes weak, a voice in the
earpiece will say “Change battery.” When this
happens, take the Beltpac out of its pouch and
remove its battery. Slide the arrow-shaped battery-
release latch in the direction of the arrow. Pull up
on the end of the battery near the battery-release
latch and lift the battery out of the Beltpac, or turn
the Beltpac over and catch the battery in your hand.
When replacing a battery in the Beltpac, place the end
of the battery with the metal contacts into the battery
holder on the Beltpac, in the same position as the
battery you removed. Press the top of the battery
carefully into the battery holder until it snaps in place
under the battery-release latch.
Battery
release latch
Battery

15
If you are unable to correct any of the problems described below, contact your dealer for assistance.
• Red light on base station power switch does not come on.
Be certain power cords are properly connected to base station, power supply and electrical outlet.
• Beltpac power lights do not turn green and “out of range” is heard in the headset.
Be certain your base station power is on. Turn the Beltpac and base station power on and off.
You may be too far from the base station. The range varies with each location’s layout.
• When trying to register, it keeps saying registration failed.
Refer to “If registration failed” on page 8, and repeat the registration procedure.
• Others cannot hear me when I talk.
Be certain the headset is securely connected to the Beltpac or base station, and that you are pressing the IC
or ISO button on the Beltpac, or the TALK button on the base station. Be certain the appropriate IC or ISO
setting is selected under LOCAL HEADSET on the base station.
• People on the 4-wire intercom cannot hear me or I cannot hear them.
Be certain the cables are securely connected and the 4-wire intercom is on. If using a local headset, be
certain the IC setting is selected under LOCAL HEADSET on the base station.
• People on the RTS/ClearCom systems cannot hear me or I cannot hear them.
Be certain the cables are securely connected and the 2-wire intercom is on. If using a local headset, be
certain the IC setting is selected under LOCAL HEADSET on the base station.
• The 2-wire intercom is on and there is a loud squeal whenever I try to talk.
This can occur if two or more base stations are daisy-chained and the JP1 jumper on the circuit board in
one of the base stations has not been set properly. Contact your dealer.
• Settings are not retained when the base station power is turned off and on again.
The internal battery may be low. Contact your dealer.
SECTION 4. TROUBLESHOOTING
In the event of an electrical power outage —
such as from a lightning storm or power generator failure, if you experience problems with your HME
equipment after the electricity comes on again, unplug the AC power supplies from their electrical outlets
and wait 15 seconds, then plug them back in.
2400MHz cordless telephone interference —
If there is a 2400MHz cordless telephone nearby, interference may occur. However, because the DX200
is a frequency-hopping system, this problem is unlikely. If it does occur, changing frequencies on the
telephone may alleviate the problem. If not, move the phone as far as practical from the base station, or use
another type phone.

16
SECTION 5. TECHNICAL DATA
EQUIPMENT SPECIFICATIONS
Base Station
GENERAL ⎯
Frequency Range: 2400 – 2483.5 MHz
Frequency Response: 200 Hz to 3.5 kHz
Power Requirements: 100-240VAC, 50-60Hz or 12-14VDC
Temperature Range: 32-122°F (0-50°C)
Size: 19” x 1.72” x 17.13” (1-RU) (48.26 x 4.37 x 43.51 cm)
Weight: 9.2 lbs. (4.18 kg) maximum
# of Beltpacs per Base: 15 can be registered
Any 4 can have simultaneous full-duplex communication at one time
4-Wire I/O: RJ45, 600Ω balanced, level adjustable, simultaneous operation with 2-wire
2-Wire I/O: XLR-3M, XLR-3F, externally-switchable RTS®or Clear-Com®mode,
200Ω, level adjustable, null adjustable
Auxiliary Input: XLR-3F/¼” (6.35 mm) combo jack, 600Ω balanced, level adjustable
Auxiliary Output: XLR-3M, 600Ω balanced, level adjustable
8Ω Speaker Output: 1W into 8Ω
Headset Connector: 4-pin mini-DIN
Electret microphone
Headset Output: 250mW into 32Ω
Front Panel Controls: Power switch
Reset Registration, Reset, Unlatch and Register Beltpac buttons,
IC and ISO Receive level adjustments, IC 2W/4W and 4W-Only buttons,
IC4W-Only Send and Receive level adjustments,
Auxiliary In and ISO+ buttons, Auxiliary In and Out level adjustments,
Rotary knob for volume adjustment,
Headset IC/ISO Select button and Headset Talk button
Front Panel Indicators: Registration Status indicator, IC and ISO Receive LEDs,
IC 2W and 4W-Only LEDs, Auxiliary In/Out LEDs,
Headset IC/ISO select LEDs, Headset PTT LED
Rear Panel Controls: Clear-Com®/RTS®mode switch, RTS®Channel 1/2 switch,
2-wire channel line null adjustment
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
TRANSMITTER ⎯
Type: Frequency hopping, spread spectrum
Transmit Power: 100mW burst
Modulation Type: Gaussian filtered FSK, TDM
Frequency Stability: 13 ppm
Harmonics/Spurious: Exceeds FCC and ETSI specifications over temperature
RECEIVER ⎯
Type: Frequency hopping, spread spectrum
RF Sensitivity: <−90dBm w 10-3 BER
Frequency Stability: 13 ppm
Distortion: <2%

17
Beltpac
GENERAL ⎯
Frequency Range: 2400 MHz – 2483.5 MHz
Antenna Type: Internal, horizontal/vertical diversity
Frequency Response: 200 Hz to 3.5 kHz
Battery Requirements: 3.6V lithium ion
Battery Life: 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
Mic Input: Electret microphone
Headset Output: 160mW into 32Ω
Controls: Power, Volume-up S, Volume-down T, IC, ISO
Indicators: Dual-color LED (red/green)
Communication Security: 64-bit encryption
System Distortion: <2%
TRANSMITTER ⎯
Type: Frequency hopping, spread spectrum
Transmit Power: 100mW burst
Transmission Modes: Momentary or latch
Modulation Type: Gaussian filtered FSK, TDM
Frequency Stability: 13 ppm
Harmonics/Spurious: Exceeds FCC and ETSI specifications
RECEIVER ⎯
Type: Frequency hopping, spread spectrum
RF Sensitivity: <−90dBm w 10-3 BER
Frequency Stability: 13 ppm
Distortion: <2%