Amron Amcom II 2825R-7002, User Manual, Page: 3 / 47

2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL
2825R-UM REV 3.0
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TABLE OF CONTENTS
1 INTRODUCTION AND SPECIFICATIONS .......................................................................................... 1
1.1 Introductions .................................................................................................................................. 1
1.2 Electrical Specifications ................................................................................................................ 1
1.3 Mechanical Specifications ............................................................................................................. 1
1.4 Amcom II Model 2825R Two Diver Rack Mount Communicator .................................................. 2
2 LIMITED WARRANTY AND SERVICE POLICY .................................................................................. 3
2.1 Limited Warranty ........................................................................................................................... 3
2.2 Service Policy ................................................................................................................................ 3
3 OPTIONS AND ACCESSORIES .......................................................................................................... 4
3.1 Options .......................................................................................................................................... 4
3.2 Accessories ................................................................................................................................... 4
4 TENDER AND DIVER CONTROLS AND CONNECTIONS ................................................................. 6
4.1 Tender Controls ............................................................................................................................ 6
4.2 Tender Connections ...................................................................................................................... 7
4.3 Diver Controls................................................................................................................................ 8
4.4 Diver Connections ......................................................................................................................... 8
4.5 Other Connections ........................................................................................................................ 9
4.6 Option Controls: Call Indicator
– 4002 .......................................................................................... 9
4.7 Option Controls: Helium Speech Unscrambler /26DSP3 .............................................................. 9
4.8 Option Controls: Wireless Tender /28A Option ........................................................................... 10
4.9 Drawing, 2-Wire Connections ..................................................................................................... 12
4.10 Drawing, Full Duplex (4-Wire) Connections ................................................................................ 13
4.11 Drawing, Push-To-Talk Microphone Connections ...................................................................... 14
4.12 Drawing, Operator Connections, Headset .................................................................................. 15
5 INSTALLATION AND OPERATION................................................................................................... 16
5.1 Operation ..................................................................................................................................... 16
5.2 AC Power .................................................................................................................................... 16
5.3 Battery Condition ......................................................................................................................... 16
5.4 Modes Of Operation .................................................................................................................... 17
5.5 Volume Controls
– 2-Wire ........................................................................................................... 18
5.6 Other Diver Controls
– 2-Wire ..................................................................................................... 19
5.7 Volume Controls 4-Wire .............................................................................................................. 19
5.8 Other Tender Controls ................................................................................................................ 20
6 MAINTENANCE AND TROUBLESHOOTING ................................................................................... 22
6.1 Diver Radio Communicator Check Procedures .......................................................................... 22
6.2 General Maintenance .................................................................................................................. 23
6.3 Recommended Maintenance Schedule ...................................................................................... 24
6.4 Troubleshooting .......................................................................................................................... 25
7 FULL DUPLEX (4-WIRE) - WHAT, WHY AND HOW ........................................................................ 29
7.1 What Are 2-Wire And 4-Wire Modes? ......................................................................................... 29
7.2 What Is Full Duplex (4-Wire)? ..................................................................................................... 30
7.3 Why Full Duplex (4-Wire)? .......................................................................................................... 31
7.4 How Do You Use Full Duplex (4-Wire)? ..................................................................................... 31