Instruction Manual - DECA | Diving Equipment Company of America

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INSTALLATION & OPERATION MODES OF OPERATION 6.5 The Model 2830A has the capability of 2-wire and/or Simulcom (4 wire) communication modes. 2- Wire and Simulcom can be used simultaneously (divers on Simulcom, tender on 2-wire). 2-Wire communication is defined as a single communication path; normally the diver is the priority signal path, tender listens to diver. Signal reversing is accomplished by pushing the push to talk switch, diver will hear tender. Often times a 4-conductor (4 wires) communication cable is used with 2 wires tied together as a pair for redundancy, this is still a 2-wire system. Simulcom (4-Wire) communication is defined as a dual communication path, a signal path (a pair of wires) for up-link and a signal path (a pair of wires) for downlink. A common example of Simulcom communication is the telephone. This permits the freedom of natural communication, lower system noise, and diver-to-diver communication without having to attempt Push To Talk switching. For an in depth discussion on Simulcom refer to "Simulcom, What - Why - And - How!" located in the Theory of Operation Section of this manual. 2-WIRE OPERATION (See Figure 5.8) For communicator model 2830A (Binding Post Connectors) - Connect the communications cable from the divers umbilical (hat/helmet) to Diver 1, Diver 2 and/or Diver 3, microphone (input) under the words 2-wire. Wires should be well fastened to the binding posts and not touching each other. If more than one diver is connected to any input, (Diver 1, Diver 2 or Diver 3), the divers on the same two terminals will not be able to cross-talk (talk to each other). For communicator model 2830A-MS (MS Connectors, 5 PIN) - Connect the communications cable from the divers umbilical (hat/helmet) to Diver 1, Diver 2 and Diver 3, Umbilical MS Connector Pin A & B. Pin A should have one of microphone wires and one of earphone wires, same thing for Pin B. Wires should be well soldered to the mating connector. Pin A & B wires should not touch each other. The divers do not use the earphone connection. The diver earphone connection can be used to operate a remote speaker. Both diver and tender conversations will be heard. In 2-wire mode the tender must press the Push to Talk Switch to be heard. If you are using the Amron Remote Walk And Talk, Model 2821-28, the tender may press the Push To Talk Switch on the belt module. SIMULCOM (4-wire) OPERATION (See Figure 5.9) Connect two wires from the diver’s microphone to the Microphone (input) Diver 1 (For model 2830A-MS, MS Connector PIN A&B). Connect the two wires from diver’s earphones to the Earphone (output) Diver 1 (For model 2830A-MS, MS Connector PIN C&D). Repeat the same for divers 2 & 3. Connect tender headset earphones to Headset (output), and headset microphone to Tender Microphone (input). Turn speaker off to avoid acoustic feedback. Operation with speaker is possible by extending tender’s headset away from the speaker. Use Amron Model 2822-28 headset extension cable (25 foot). Note: Diver microphone is louder in 4-wire than 2-wire operation. Tender earphone is louder than divers earphones for both 2-wire and 4-wire operation. Tender earphone is about 4 times louder than diver's earphone. 17
INSTALLATION & OPERATION VOLUME CONTROLS (2-WIRE MODE) 6.6 The upper row of volume controls, set the microphone volume, the lower row of volume controls, set the earphone volume. Tender controls are considered master controls. The optimum settings are when controls are closely matched, with differences compensating for differences in diver levels. Turn unit ON; adjust all volume controls to mid-scale. For 2-Wire Mode, Tender has to depress PTT Switches in order to talk to Divers. Tender and Divers talk to each other during Tender adjusting volume controls as below: Tender (Volume Controls) Tender Earphone Volume - Divers talk, while tender adjusts to a comfortable listening level. Tender Microphone Volume - Tender talks while depressing PTT All Divers Switch, divers determine a comfortable listening level, having the tender adjust as needed. Diver 1 (Volume Controls) Diver 1 Earphone Volume - Tender talks while depressing Diver 1 PTT Switch, diver 1 determine a comfortable listening level, having the tender adjust as needed. Diver 1 Microphone Volume - Diver 1 talks, while tender adjusts to a comfortable listening level. Diver 2 (Volume Controls) Diver 2 Earphone Volume - Tender talks while depressing Diver 2 PTT Switch, diver 2 determine a comfortable listening level, having the tender adjust as needed. Diver 2 Microphone Volume - Diver 2 talks, while tender adjusts to a comfortable listening level. Diver 3 (Volume Controls) Diver 3 Earphone Volume - Tender talks while depressing Diver 3 PTT Switch, diver 3 determine a comfortable listening level, having the tender adjust as needed. Diver 3 Microphone Volume - Diver 3 talks, while tender adjusts to a comfortable listening level. OTHER DIVER CONTROLS (2-WIRE MODE) 6.7 PTT All Divers Switches Push to Talk to All Divers switch is located on the left bottom corner below Power ON/OFF Switch. This Switch allows all divers to hear the Tender, it change all divers to be listening and tender in talking mode. Diver PTT Switches (Diver 1, Diver 2 & Diver 3) Diver Push to Talk switches located below earphone volume control for each diver section. PTT will allow the specific diver to hear Tender and other divers, it change the diver to be listening and tender in talking mode. 18
Page 1 and 2: User Manual For Amron International
Page 3 and 4: TABLE OF CONTENTS Theory of Operati
Page 5 and 6: GENERAL INFORMATION GENERAL INFORMA
Page 7 and 8: OPTIONS OPTIONS 3.1 Model /26 Heliu
Page 9 and 10: CONTROLS & CONNECTIONS CONTROLS AND
Page 11 and 12: CONTROLS & CONNECTIONS DIVER CONNEC
Page 13 and 14: CONTROLS & CONNECTIONS OPTIONS (con
Page 15 and 16: CONTROLS & CONNECTIONS DRAWING, SIM
Page 17 and 18: CONTROLS & CONNECTIONS DRAWING, OPE
Page 19: INSTALLATION & OPERATION BATTERY CO
Page 23 and 24: INSTALLATION & OPERATION OTHER TEND
Page 25 and 26: INSTALLATION & OPERATION OPTIONS (C
Page 27 and 28: INSTALLATION & OPERATION SIMULCOM -
Page 29 and 30: INSTALLATION & OPERATION SIMULCOM -
Page 31 and 32: THEORY OF OPERATION AUDIO VOLUME CO
Page 33 and 34: THEORY OF OPERATION FUNCTIONAL BLOC
Page 35 and 36: MAINTENANCE COMPREHENSIVE 2-WIRE &
Page 37 and 38: MAINTENANCE PROBLEMS AND THEIR POSS
Page 39 and 40: DRAWINGS DRAWINGS & SCHEMATICS 9.1
Page 41 and 42: DRAWINGS SCHEMATIC 2830A/24-MS 9.3
Page 43 and 44: DRAWINGS SCHEMATIC OPTION 2828-FDW
Page 45 and 46: DRAWINGS PARTS IDENTIFIER, 2324-202
Page 47 and 48: DRAWINGS PARTS IDENTIFIER, FRONT PA
Page 49 and 50: PARTS LIST GENERAL 10.1 The followi
Page 51 and 52: PARTS LIST AMCOM III MODEL 2830A/24
Page 57 and 58: PARTS LIST 2830A-400M FRONT PANEL A

Instruction Manual - DECA | Diving Equipment Company of America

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