MODEL 2830A USER MANUAL
2830A UM
REV 3.0
19
of Full Duplex communication is the telephone. Full Duplex (4-Wire) has the advantage of
natural communication without having to use the PUSH-TO-TALK BUTTON. This keeps the
tender's hands free to perform other task. It does not require the same level of discipline to
achieve clear communications that 2-Wire does. It has the advantage that neither the diver nor
the tender are cut off when the other is talking. Because the diver's microphone is not
connected in parallel with the earphone, the diver is louder and potentially clearer in Full
Duplex (4-Wire) mode. More information on this mode can be found in Section 8, FULL
DUPLEX (4-WIRE) - WHAT, WHY AND HOW.
5.5.1 2-WIRE
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.
When the diver is wired in the 2-wire mode, the diver earphone jack can be
connected to a remote speaker to allow support personnel to hear both the diver and
tender conversation.
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.
5.5.2
FULL DUPLEX (4-wire) OPERATION
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.
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.
Summary of Contents for 2830A/24 Series
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