Amron 2810E User manual

User Manual
for
Amron International, Inc.
Amron Model 2810E and 2810E-1
1-Diver Communicator
S/N______________________
1380 Aspen Way, Vista California 92081-8349
United States of America
Phone: [phone]
Fax [phone]
email: [e-mail]
web: www.amronintl.com
This manual and the information contained herein are provided for use as an operation and
maintenance guide. No license or rights to manufacture, reproduce, or sell either the manual or
articles described herein are given. Amron International, Inc. reserves the right to change
specifications without notice.
Copyright© 2013 Amron International, Inc.

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TABLE OF CONTENTS
1. INTRODUCTION AND SPECIFICATIONS...........................................................................................1
INTRODUCTION............................................................................................................................11.1 ELECTRICAL SPECIFICATIONS...................................................................................................11.2 MECHANICAL SPECIFICATIONS.................................................................................................21.3 MODEL 2810E WITH BATTERY CHARGER .................................................................................21.4 MODEL 2810E-1.............................................................................................................................31.5
2. WARRANTY AND SERVICE POLICY..................................................................................................4
LIMITEDWARRANTY....................................................................................................................42.1 SERVICE POLICY..........................................................................................................................42.2
3. ACCESSORIES.....................................................................................................................................5
AMRON HEAVY-DUTY HEADSET - MODEL 2401-28..................................................................53.1 AMRON STANDARD HEADSET - MODEL 2460-28.....................................................................53.2 AMRON PUSH-TO-TALK MICROPHONE - MODEL 2405-28 ......................................................53.3 AMRON REMOTE WALK-AND-TALK MODULE - MODEL 2822-28.............................................53.4 AMRON REMOTE PUSH-TO-TALK MODULE - MODEL 2821-28 ...............................................53.5 AUDIO ADAPTOR CABLE - AMRON PART NUMBER 180-1000-00 ...........................................53.6
4. CONTROLS AND CONNECTIONS ......................................................................................................6
TENDER AND DIVER CONTROLS................................................................................................64.1 TENDER CONNECTIONS .............................................................................................................74.2 DIVER CONNECTIONS .................................................................................................................94.3 REAR PANEL CONNECTIONS....................................................................................................104.4 DRAWING, 2-WIRE CONNECTIONS ..........................................................................................124.5 DRAWING, FULL DUPLEX (4-WIRE) CONNECTIONS...............................................................134.6 DRAWING, PUSH-TO-TALK MICROPHONE CONNECTIONS...................................................144.7
5. OPERATION........................................................................................................................................15
CHARGING THE BATTERY (2810E ONLY) ................................................................................155.1 INITIAL POWER ON -BATTERY CONDITION CHECK...............................................................15
5.2 OPERATING ON AC POWER......................................................................................................165.3 MODES OF OPERATION.............................................................................................................165.4
6. MAINTENANCE and troubleshooting ..............................................................................................20
DIVER RADIO COMMUNICATOR CHECK PROCEDURES........................................................206.1 GENERAL MAINTENANCE .........................................................................................................226.2 TROUBLESHOOTING..................................................................................................................236.3
7. FULL DUPLEX (4-WIRE) - WHAT, WHY AND HOW.........................................................................27
WHAT ARE 2-WIRE AND 4-WIRE MODES? ...............................................................................277.1 WHAT IS FULL DUPLEX (4-WIRE)?............................................................................................287.2 WHY FULL DUPLEX (4-WIRE)?...................................................................................................297.3 HOW DO YOU USE FULL DUPLEX (4-WIRE).............................................................................307.4

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8. DRAWINGS.........................................................................................................................................32
FRONT PANEL PARTS LOCATOR, MODELS 2810E &2810E-1 ...............................................338.1 CASE PARTS LOCATOR, MODELS 2810E &2810E-1...............................................................348.2
9. PARTS LIST GENERAL .....................................................................................................................35
MODEL 2810E TOP ASSEMBLY.................................................................................................369.1 MODEL 2810E-1 TOP ASSEMBLY..............................................................................................369.2 2810A-FS-01 FIELD SPARES KIT ...............................................................................................379.3 2810E-300 CASE ASSEMBLY .....................................................................................................379.4 2810E-300M CASE ASSEMBLY COMPONENTS .......................................................................389.5 2810E-400 FRONT PANEL ASSEMBLY......................................................................................389.6 2810E-400M FRONT PANEL ASSEMBLY COMPONENTS........................................................399.7 2823-603 CHARGER ASSEMBLY ...............................................................................................399.8

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1. INTRODUCTION AND SPECIFICATIONS
INTRODUCTION1.1
The 2810E is the newest member of the Amron International AMCOM I series of diver
communicators. The 2810E is a full featured, one-diver, hardwire communicator that uses
state-of-the-art electronics and introduces even more features to the diving community. The
first is a digital audio power amplifier which significantly reduces the current draw resulting in
a nearly doubling of the battery life. The 2810E uses a new audio filtering network for
improved sound clarity and communications. An auxiliary audio input allows the diver to
listen to audio from an MP3 player while remaining in constant communication with the
tender. Please note that this feature is only available when diving in 4-Wire mode. These
new features allow the AMCOM I 2810E to remain the most advanced one-diver
communicator on the market. To enjoy all the features, it is important that the tender read
and understand the entire manual including all warnings.
Like previous members of the AMCOM I family, the 2810E can operate in 2-Wire or Full
Duplex (4-Wire) communication modes. There is a single volume control for the up-link
(Diver-to-Tender) and another volume control for the down-link (Tender-to-Diver). Designed
for a long and dependable service life, the 2810E has a powder coated, stainless steel front
panel with a waterproof speaker and heavy-duty switches with waterproof seals. The 2810E
is enclosed in a rugged plastic case with all the user connectors situated so that the unit can
be operated with the case lid closed.
ELECTRICAL SPECIFICATIONS1.2
Input Impedance (Microphone Inputs) ..................................................................... 300 Ohms
Frequency Response.......................................................................................... 300 - 4000 Hz
Common Mode Rejection (minimum)................................................................................40 dB
Entertainment Input Impedance ..............................................................................>47 kOhms
Current Drain Maximum Full Volume...........................................................................3 Amps
Typical Quiescent.............................................................................55 mAmps
Minimum Load Impedance...............................................................................................2 ohm
Nominal Power Supply Voltage......................................................................................12 VDC
Operational Supply Voltage .....................................................................................9 - 18 VDC
Sensitivity (Input).....................................................................................................1.8 mVRMS
Maximum Output Power (4 Ohm Load, 14 VDC).........................................................20 Watts
Battery Life Model 2810E (typical) .............................................................................. 85 Hours
Model 2810E-1 (typical)......................................................................... 120 Hours

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MECHANICAL SPECIFICATIONS1.3
Panel ........................................................................................Powder Coated Stainless Steel
Enclosure .................................................................................. High Impact Resistant Plastic
Size Length ..........................................................................................................9.0 in. (23cm)
Width..................................................................................................................6.55 in. (17cm)
Height...................................................................................................................7.1 in. (18cm)
Weight With Batteries
2810E............................................................................................................10.0 Lbs. (5.55kg)
2810E-1................................................................................................................7 Lbs. (3.2kg)
MODEL 2810E WITH BATTERY CHARGER1.4
The Model 2810E comes equipped with a sealed lead-acid rechargeable battery along with
the 2823-603 universal input (115/230 VAC) battery charger. The 2823-603 Battery Charger
has medical grade electrical isolation for maximum safety to the diver. Carefully read section
4.1 before using any other external power source.

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MODEL 2810E-11.5
The Model 2810E-1 comes equipped with two lantern style, 6 Volt alkaline batteries. The unit
can be operated using an external power supply as described in the operation section of this
manual. Carefully read sections 3.4 and 4.3 before using any external power source.

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2. WARRANTY AND SERVICE POLICY
LIMITED WARRANTY2.1
Amron warrants that its manufactured products are free from defects in material and
workmanship under normal use and service, as described in all literature covering the
products for a period of 90 days from date of shipment. Amron’s obligations under this
warranty are limited to the repair of, or replacement of materials at Amron’s discretion. This
warranty shall not cover defects which are the result of misuse, negligence, accident, repair,
or alterations.
SERVICE POLICY
2.2
For technical assistance or to request a repair, please call [phone], Monday –
Friday, 8 a.m. to 5 p.m. PT. Have the model number and serial number handy and be
prepared to offer as much information as possible about the problem.
Please do not return any product without obtaining a return authorization number. Detailed
instructions will be provided at the time of request.

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3. ACCESSORIES
Amron produces a series of accessories designed to operate with the entire line of AMCOM diving
communicators.
AMRON HEAVY-DUTY HEADSET - MODEL 2401-283.1
The Model 2401-28 is a heavy-duty headset with boom microphone. It comes equipped with
color-coded, dual banana plugs that mate directly to AMCOM diver communicators. It
includes a six foot (1.8 meter) cord.
AMRON STANDARD HEADSET - MODEL 2460-283.2
The Model 2460-28 is a light and comfortable headset designed for extended wear at an
economical price. It comes equipped with color-coded, dual banana plugs that mate directly
to AMCOM diver communicators as well as a spiral cord that can be extended up to 8 feet
(2.4 meters).
AMRON PUSH-TO-TALK MICROPHONE - MODEL 2405-283.3
The Model 2405-28 is a hand-held, noise canceling, push-to-talk microphone that provides
excellent sound quality to the diver. It comes equipped with a spiral cord that can be
extended up to 6 feet (1.8 meters).
AMRON REMOTE WALK-AND-TALK MODULE - MODEL 2822-283.4
Designed for Full Duplex (4-Wire) applications, the Model 2822-28 provides the tender with
mobility around the dive site while maintaining communications with the diver. It comes
equipped with a small clip-on belt module that contains the connectors for the headset, and
25 feet (7.6 meters) of lightweight flexible cable. Custom cable lengths are available.
AMRON REMOTE PUSH-TO-TALK MODULE - MODEL 2821-283.5
Designed for 2-Wire applications, the Model 2821-28 provides the tender with mobility
around the dive site while maintaining communications with the diver. It comes equipped
with a small clip-on belt module that contains a Push-to-Talk switch, connector for the
headset, and 25 feet (7.6 meters) of lightweight flexible cable. Custom cable lengths are
available.
AUDIO ADAPTOR CABLE - AMRON PART NUMBER 180-1000-003.6
A 2 meter long cable with two RCA Phono plugs that connect the auxiliary audio input to a
standard 3.5 mm stereo phone plug which mates to the headphone jack of most common
portable audio devices.

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4. CONTROLS AND CONNECTIONS
Before using the 2810E diver communicator, the tender should be familiar with all the operating
controls and connections. While reading this manual, you will find capitalized words such as PANEL
SPEAKER. These words are to remind the reader that additional information can be found in this
section of the manual.
TENDER AND DIVER CONTROLS4.1
The following controls are located on the front panel of the 2810E
4.1.1 POWER SWITCH - The power on/off control.
4.1.2 SPEAKER SWITCH - This switch allows the tender to turn off the speaker. If the
tender is using a headset, it may be necessary to turn off the speaker in order to
prevent acoustic feedback.
4.1.3 PUSH-TO-TALK BUTTON - This button allows the tender to talk to the diver when
operating in the 2-Wire mode. It is not necessary to use this control in the Full
Duplex (4-Wire) mode. When using Full Duplex mode, this control allows the
tender to interrupt the diver by forcing the diver into listen only mode.
4.1.4 TENDER TO DIVER VOLUME - This control sets the volume for the diver's
earphone including any signal from the AUXILIARY AUDIO INPUT. Rotate this
knob clockwise to increase the volume.