HME DX100 User manual

HME# 400G748
Rev A 5/4/17
DX100
Wireless Intercom
Operating Instructions

SECTION 1. INTRODUCTION ....................................................................................................................... 1
EQUIPMENT IDENTIFICATION ....................................................................................................................... 2
MAIN EQUIPMENT FEATURES ....................................................................................................................... 3
Base Station Features ........................................................................................................................................ 3
Beltpac Features (Uses BAT41 battery)...........................................................................................................3
WH220 Headset Controls (Uses BAT50 battery)..............................................................................................4
SECTION 2. EQUIPMENT SETUP.................................................................................................................5
AC40 BATTERY CHARGER SETUP.................................................................................................................5
Connect AC Power Supply................................................................................................................................5
Charging the Batteries.......................................................................................................................................5
AC50 BATTERY CHARGER SETUP.................................................................................................................6
Connect AC Power Supply................................................................................................................................6
Charging the Batteries.......................................................................................................................................6
BASE STATION SETUP...................................................................................................................................... 7
Antenna and Power Setups................................................................................................................................7
Interference Avoidance...................................................................................................................................... 9
Multiple Base Stations.....................................................................................................................................10
Primary and Secondary Base Station Settings................................................................................................. 10
Base Station Initialization................................................................................................................................ 11
BELTPAC / WH220 HEADSET SETUP AND REGISTRATION....................................................................13
Set Up Beltpacs ............................................................................................................................................... 13
Register Beltpacs.............................................................................................................................................13
Set Up WH220 Headsets................................................................................................................................. 15
Register WH220 Headsets............................................................................................................................... 15
SECTION 3. EQUIPMENT OPERATION................................................................................................... 17
BASE STATION OPERATION ......................................................................................................................... 17
Controls and Indicators.................................................................................................................................... 17
Low Battery Indicator...................................................................................................................................... 17
BELTPAC OPERATION....................................................................................................................................18
WH220 HEADSET OPERATION......................................................................................................................20
SECTION 4. ADVANCED FREQUENCY HOPPING.................................................................................22
Background ..................................................................................................................................................... 22
CLEAR-COM Adaptive Frequency Hopping ................................................................................................. 22
Operation in Severe Environments..................................................................................................................23
Required AFH Equipment............................................................................................................................... 23
Non-AFH Equipment ...................................................................................................................................... 23
Interference Mitigation.................................................................................................................................... 24
SECTION 5. TROUBLESHOOTING............................................................................................................25
SECTION 6. TECHNICAL DATA.................................................................................................................26
EQUIPMENT SPECIFICATIONS ..................................................................................................................... 26
Base Station..................................................................................................................................................... 26
Beltpac............................................................................................................................................................. 27
WH220 Headset...............................................................................................................................................27
GENERAL BATTERY SAFETY INSTRUCTIONS FOR BATTERY MODEL BAT41, BAT50, BAT60...... 28
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.

Hereby, HM Electronics, Inc. declares that the DX100 is in compliance with the essential requirements and other
relevant provisions of Radio Equipment Directive (RED).
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.
MANDATORY SAFETY INSTRUCTIONS
FOR INSTALLERS AND USERS
Use only manufacturer 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. These instructions also meet Industry
Canada RSS-GEN 7.14.
The term “IC:” before the certification number 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
2dBi. The required antenna impedance is 50 Ohms.
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.
INFORMATION TO USER
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.
This equipment has been tested and found to comply with the limits for Class B Digital Device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures.
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

IMPORTANT!
DISPOSAL OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT
Waste Electrical and Electronic Equipment (WEEE)
The European Union (EU) WEEE Directive (2012/19/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 finance the costs of recovery from municipal collection points, reuse, and recycling of
specified 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.

1
The DX100 provides private, secure communication. Each base station can register up to a total of fifteen
BP200 Beltpacs and/or WH220 All-in-one Wireless Headsets. Any combination of Beltpacs and/or Headsets
may be registered. Four of the fifteen Beltpacs and/or Headsets can transmit simultaneously.
Beltpacs/Headsets can be used either in the Push-To-Talk (PTT) or Hands-Free (HF) mode. The base station
operator can stop any Beltpac/Headset from transmitting.
The MB100 Base Station can be operated using standard AC electricity, an external DC power source or six AA
batteries. A power supply, cable and a battery sled are included with the base station.
This is an example of a typical theatrical application. A variety of other uses for the DX100 are possible.
SECTION 1. INTRODUCTION

2
WH220 All-in-one
Wireless Headset
AC50
Battery Charger
AC50
Power Supply
EQUIPMENT IDENTIFICATION
The following equipment is standard with the DX100 Wireless Intercom System. As you unpack the equipment,
check the enclosed shipping documents to be sure you received all items listed.
MB100 Base Station
Base Station Antennas
(2 per Base Station)
OPTIONAL EQUIPMENT
HS4-3 Earpiece & Lapel Microphone
HS15 Single-Muff Headset
HS15D Dual-Muff Headset
HS16 Lightweight Headset
HSI6000 Headset Adapter
BAT850 Rechargeable Battery for MB1000
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
Base Station Battery Sled
115/230 Volt AC Power Supply
(1 per Base Station, with Power Cord)
BP200 Beltpac
HS15 Headset
Beltpac Pouch
AC50 Battery
AC40
Battery Charger
BAT41 Battery

3
MAIN EQUIPMENT FEATURES
Base Station Features
1. POWER indicator light
2. RESET button
3. REGISTRATION STATUS display
4. RECEIVE indicator light
5. REG (Registration) button
6. PWR (Power) button
7. UN-LATCH button
8. CLR/BND (Clear/Band) button
9. Antennas
10. Power connector
11. Battery compartment cover
12. Battery compartment cover release latch
Beltpac Features (Uses BAT41 battery)
1. Headset cable connector
2. Beltpac power and transmit 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

4
WH220 Headset Controls (Uses BAT50 battery)
1. IC1 button
2. ISO (Isolate) button
3. Volume-up button
4. IC2 button
5. Volume-down button
6. Power light
7. Microphone
8. Power button
9. Battery
10. Battery-release latch

5
AC40 BATTERY CHARGER SETUP
The AC40 is the charger for Beltpac batteries.
IMPORTANT! –Before installing the system, connect the AC power supply to the AC40 Battery Charger
and plug it into an electrical outlet. Charge all the batteries for the Beltpacs 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 cord connector into the AC power supply.
Plug the power cord into an electrical outlet.
The red lights on the charger will come on and go off, and then the yellow lights will turn on and remain on.
Charging the Batteries
Up to four batteries can be charged simultaneously.
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 adjacent to each charging port
illuminates while the port is empty. When a
battery is in a charging port, an adjacent flashing
yellow light indicates CHARGE PENDING,
which indicates that the battery is too hot. Adjust
the room temperature or move the charger to a
cooler area. When a battery is in a charging port,
an adjacent, steady yellow light indicates
CHARGE FAILED. If this happens, follow the
instructions on the side of battery charger.
A red light adjacent to a battery port indicates
that the battery in the port is CHARGING. A
green light adjacent to an inserted battery
indicates a READY, fully charged battery.
SECTION 2. EQUIPMENT SETUP
Charged batteries
in storage ports
Battery in
charging port
Empty
charging ports
Power cord
connector
AC power supply Power cord
Power supply
cable connector
AC40 Battery Charger
To electrical
outlet

6
AC50 BATTERY CHARGER SETUP
Before installing the system, connect the AC power supply to the battery charger and plug it into an electrical
outlet. Charge all the batteries while the other equipment is being installed. Charging time is about 2.5 hours.
Connect AC Power Supply
To connect the AC power supply to the battery charger:
1. Connect the AC power supply cable connector to the
power connection on the battery charger.
2. Connect the AC power cord to an electrical outlet.
The red lights on the charger will briefly display, and then the
yellow lights will appear and remain on.
Charging the Batteries
Up to four batteries can be charged in the battery charger at one time. The battery status lights next to each
charging port indicate the battery status. Up to four 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 a Charging port indicates that the port is EMPTY.
A red light next indicates that the battery port is CHARGING.
A green light indicates that the battery is READY.
A steady yellow light indicates that the CHARGE FAILED. If a charge fails, refer to the instructions
on the side of battery charger.
A flashing yellow light indicates CHARGE PENDING, which means the inserted battery is too hot.
Adjust room temperature or move the charger to a cooler area.
Store the fully charged
batteries in storage ports.
IMPORTANT: Batteries should not be
left in charge ports after being fully
charged. A battery left in a charging
port for more than three weeks may
display the yellow indicator light, but it
does not indicate a faulty battery.

7
BASE STATION SETUP
Locate the two base station antennas, as well as the AC power adapter and power cord received with the base
station. Connect them to the base station as described below.
Antenna and Power Setups
Step 1. Connect the two enclosed
antennas to the antenna
connectorson the top and right side ofthe base
station (displayed to the right).
Position the antennas at right angles in opposite
directions. The illustration below shows one
possible arrangement. Turn the sleeve on each of
the antenna connectors clockwise to tighten the
antennas securely in position.
Step 2. Note which of the following applies to you.
If using the DX100 with AC power Plug the connector at the end of the AC power supply
cable into the power connector on top of the base station. Turn the sleeve 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.

8
If using the DX100 with battery power Press in and up on the battery cover release latches
to lift the cover and open the battery compartment.
Insert six AA batteries into the battery sled (as illustrated inside the sled), and install the sled in
the battery compartment as displayed below. An HME BAT850 Rechargeable NiMH Battery may
be used instead.
Close the battery compartment by pressing its cover down until both latches snap in place.
NOTE: Simultaneously pressing down on the cover next to both of the latches will assure proper
closing.
If using the DX100 with an external DC power source We recommend that you purchase a
12V DC power cord adapter for a standard vehicle power port, then purchase and attach a
“Switchcraft 760K” DC power plug. Follow the manufacturer’s instructions to connect the
external DC power source to the power connector on top of the DX100. Any power supply used
with the DX100 should be rated at least 12VDC, 500mA.
NOTE: Having a fully charged (or new) battery when operating the DX100 with AC or external DC power can
prevent interruption of communication during a power outage. This allows the base station to seamlessly
switch to battery power.
If only one base station will be used, skip pages 9 –12 and turn to page 13.
If more than one base station will be used, continue with all instructions on the following pages.

9
REGISTRATION
STATUS display
Interference Avoidance
Interference (ex: headset popping sounds) may occur whenever other equipment, such as WI-FI systems,
wireless DMX systems or other HME Base Stations use the same frequency band.
If these systems can be limited to one portion of the band, then the DX100 can be set to the opposite half of the
2.4 GHz to 2.48 GHz band. To avoid this type of interference, select the upper part of the frequency range on
one Base Station (or more), and the lower part of the frequency range on the other(s). Here’s how:
Step 1. Turn on the Base Station power.
The number “8”will appear on the REGISTRATION STATUS display for a
few seconds.
Step 2. After the “8”disappears and the REGISTRATION STATUS
display is blank (primary base) or shows a double bar
(secondary base), press and hold the CLR/BND button. While
you are still holding the CLR/BND button, press and hold the
REG button and wait until a L, Hor Aappears. Release both
buttons.
Step 3. Press the CLR/BND button to cycle through
parts of the frequency band; L= Low end,
H= High end, A= All, and E= European mode.
Step 4. Wait until “c”appears on the display.
NOTE: Base stations are shipped in the A(default) position.
“c”will only appear on the REGISTRATION STATUS display if you are setting the frequency
band the first time, or 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
REGISTRATION STATUS display will become 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.
CLR/BND
button
REG
button

10
Multiple Base Stations
This mode of operation can be used to expand the number of users communicating through multiple HME Base
Stations operating in the same portion of the 2.4 GHz to 2.48 GHz frequency band.
Primary and Secondary Base Station Settings
One base station must be designated as “primary” and all others must be designated as “secondary”. You can have only
one primary and up to 3 secondary base stations. Secondary base stations are assigned numbers 1, 2, or 3.
Label the base stations as “Primary”, “1”, “2” and “3”.
Start with every base station and Beltpac/Headset power off.
Set DIP Switches
Open each secondary base station and set
DIP switch #4 to the ON position as follows.
Using a T9 torque wrench, remove the
six screws from the front panel of each
secondary base station. Lift the front
panel carefully and set it face down.
Be careful not to pull any wires loose.
Locate the DIP switch on the transceiver circuit board inside the front panel of each secondary base station.
Set DIP switch #4 to the ON position. Leave #s 1 and 3 in the OFF position.
Replace the front panel and screws on the secondary base stations.
The primary base station DIP switch #4 should be in the OFF position.
DIP switch inside
secondary
base station

11
Base Station Initialization
For multiple HME Base Stations to operate without interference, they must be properly initialized before
performing any other setups. After initializing each base station, register each Beltpacs/Headsets to that base
according to the procedures on pages 13 - 16.
NOTE: Base stations must be set up for split-band operation prior to initialization. If a different frequency
band needs to be selected to avoid interference, the primary base station must be set to this frequency
band before base station initialization is started. (See Interference Avoidance on page 9.)
Initialize each base station and register all Beltpacs/Headsets as follows:
Primary Base Station
Turn the primary base station power on. Register any Beltpacs/Headsets to be used with the primary base
station (See pages 13 - 16). Turn each Beltpac/Headset off after registering it.
Secondary Base Stations
Step 1. Power-on one secondary base station.
The REGISTRATION STATUS display will show a double bar,
indicating the secondary base station is ready to be initialized.
Step 2. Press the REG button on the primary base station.
The REGISTRATION STATUS display will show a small “o”.
Step 3. To assign a number to a secondary base station and initialize it, press
the REG button on the secondarybase. Pressing the button repeatedly
cycles through the numbers 1, 2, and 3. When the desired number
appears, release the button and wait. While the secondary base
initializes, the REGISTRATION STATUS display will continue
showing the selected number. When secondary base station initialization
is finished, the display will show one bar indicating that the secondary
has initialized to the primary.
Step 4. Press the REG button on the primary base station.
The REGISTRATION STATUS display will go blank.
Step 5. Register Beltpacs/Headsets to the secondary (See pages 13 - 16).
Step 6. After registration, turn off the secondary base and all Beltpacs/Headsets
will be registered.
Step 7. Repeat the above steps for each remaining secondary base station. Use a
different number for each. Only the primary base and the secondary base to
be initialized should have power during initialization. All other equipment
should be turned off.
Step 8. After all secondary bases are initialized and Beltpacs/Headsets are registered, power-up all base stations.
REG
button
REGISTRATION
STATUS display
RESET
button

12
Step 9. Press the RESET button on the primary base, and let it recover.
Step 10. Turn on the primary Beltpacs/ Headsets, and let them link.
Step 11. Press the RESET button on each secondary base station (one at a time), and
let it initialize to the primary base (indicated by a single bar).
Step 12. Turn on the Beltpacs/Headsets associated with the secondary base stations. Work with one group at a time
until they have all linked, and then do the next group. At this point all base stations and Beltpacs/Headsets
should be powered-up, linked and ready for use.
Step 13. Now proceed with normal system configuration, setting functions and levels as required.
Step 14. If it becomes necessary to replace a secondary base station, initialize the new secondary with the same
number as the replaced secondary. After initialization, you will have to register any Beltpacs/Headsets to the
new secondary.
Step 15. If it becomes necessary to replace a primary base station, follow the preceding instructions completely.
Before initialization of the secondary base stations, clear the previous secondary initialization as follows.
For each secondary, press the CLR/BND button and the
RESET button simultaneously. Release the RESET button,
but continue pressing the CLR/BND until the clear
code “c” (lower case) appears on the
REGISTRATION STATUS display.
Any Beltpacs/Headsets associated with the old primary
base station will have to be registered to the new primary,
following secondary base station initialization.
All Beltpacs/Headsets associated with secondary base stations also have to be registered again.
Step 16. If the primary base is shut down or powered off for more than 30 seconds, all secondary bases will drop
their Beltpac/Headset connections and begin searching for the primary. If the primary is not found in 30
seconds, the secondary will automatically revert to primary-mode operation and reconnect the Beltpacs/
Headsets.
At this point, the secondary REGISTRATION STATUSdisplays will show
three bars. If the primary is turned back on, it will be necessary to press the
RESET button on all secondarybases to allow them to find and initialize to the
primary again. It’s therefore important to have all base stations connected to the
same AC circuit to prevent this situation when the system is shut down after
hoursand powered up again the next day.
NOTE: You cannot register Beltpacs/Headsets to a base that is set to primary mode, and then switch the base
mode to secondary for initialization. Once in secondary mode, the base cannot recognize the
Beltpacs/Headsets registered during primary operation.
For secondary bases, the Beltpacs/Headsets must always be registered after secondary base
initialization. The primary base must remain active, and the secondary base should display one bar.
CLR/BND
button
RESET
button

13
BELTPAC / WH220 HEADSET SETUP AND REGISTRATION
The first time you operate the DX100 system, you must register each Beltpac and/or WH220 Headset for use
with a specific base station. The base station will then recognize all registered Beltpacs/ Headsets when their
power is on. They will also recognize other electronic equipment operating on the same frequencies. If a
Beltpac/Headset is added, replaced or repaired later, the new one must be registered (the previous one will
remain in memory). Since only 15 Beltpacs and/or Headsets can be in memory, whether currently in use or not,
all memory must be cleared to remove any old Beltpac/Headset registrations.
Set Up Beltpacs
Before registering them, set up all Beltpacs as follows:
Step 1. Insert a fully charged battery in the
Beltpac, with the metal contacts on
the end of the battery inserted first.
Press itin 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 during registration. Before you begin, be certain
the base station power is on and each Beltpac to register is turned off. Beltpacs that have already been registered
can be on or off.
NOTE: If you are setting up multiple base stations, the following steps must be repeated for Beltpacs to be
registered to each base station.
Step 1. Place on your head the headset of the Beltpac to be registered.
Step 2. Press the REG button on the front panel of the base station.
The REGISTRATION STATUS display on
the base station will show a small “o” (for open).
NOTE: If you wait too long before going on
to Step 3, the base station will exit
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.
Step 4. The two power lights at the cornersof the Beltpac near the IC and
ISO buttons will begin blinking red. They will then blink green two
or three times and turn off.
Wait! There may be a short delay.
Step 1
REGISTRATION
STATUS
display
REG
button
Step 2
Step 3

14
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 display will show the 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 at the bottom of page 12 for each Beltpac to be registered.
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. When the REGISTRATION STATUS display becomes
blank, press the REG button on the base station and register the Beltpac again. If registration fails
again, call your dealer for assistance.
If you try to register more than 15 Beltpacs and/or Headsets to a base station:
An F(for registration “Full”) will appear on the
REGISTRATION STATUS display on the base
station, and you will hear “Registration failed” in
the headset.
Clear all current registrations by pressing the
CLR/ BND button and the RESET button
simultaneously. Release the RESET button, but
continue holding the CLR/BND button until the
clear code “c” (lower case) appears on the
REGISTRATION STATUS display.
Register all active Beltpacs, one at a time.
Previously registered WH220 Headsets must also be
re-registered.
REGISTRATION
STATUS display
CLR/BND
button
REGISTRATION
STATUS
display
RESET
button

15
Set Up WH220 Headsets
Before registering, insert a fully charged battery in each WH220 Headset with the metal contacts on the end of
the battery inserted first. Press it in until it snaps.
Power On/Off
To turn power on
Press and release the power button on the inside of the Headset housing. A voice message in the earpiece
will say “Headset #”, and the power light on the opposite side of the earpiece will turn on.
To turn power off
Press and hold the power button for approximately 3 seconds. A voice message in the earpiece will say
“Headset off”, and the power light on the opposite side of the earpiece will turn off.
Register WH220 Headsets
Headsets must be within 6 feet (1.83 meters) of the base station during registration. Be certain the base station
power is on, and each headset you are going to register is turned off before you begin. Headsets that are already
registered can be turned on or off.
NOTE: If you are setting up multiple, daisy-chained base stations, the following steps must be repeated for
WH220 Headsets being registered to each base station.
Step 1. Place the Headset on your head.
Step 2. Press the REG button on the front panel of the base
station.
The REGISTRATION STATUS display on the
base station 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. To turn the unit on, press and hold the ISO buttonon the Headset while pressing and releasing the power
button. Release the ISO button, and the Headset will enter the registration mode.
The Headset power light will begin blinking red, then it will blink green two or three times and
turn off.
Wait! There may be a short delay.
Power
button
REGISTRATION
STATUS
display
REG
button
Power
light
Battery release
button
Battery