Amron 2820A, User Manual

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2820A-XX & 2825A-XX SERIES TWO DIVER COMMUNICATOR USER MANUAL
282XA-UM REV 5.0
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3.1.14 AUDIO OUT – is a single RCA Phono jack (color-coded black) that provides a
transformer isolated of both the diver and tender communications. It is designed to
drive the standard line-level inputs of audio or video recorders with input
impedances as low as 600 Ohms.
3.1.15 SEALED AC POWER ENTRY MODULE – is located on the right side of the case
and outdoor rated offering IP 65 protection to the communicator and IP54
protection to the cord connection. The internal battery charger has a universal
input AC voltage range from 90-264 VAC over a frequency range from 50-60 Hz.
3.1.16 COUNTRY SPECIFIC LOCKING AC POWER CORD – is supplied with every
communicator and country type is selected at time of order. The outdoor rated
power cord locks into the weather resistant AC Power Entry Module located on the
side of the communicators case, offering IP 54 protection to the cord connection.
3.2 DIVER CONTROLS & CONNECTIONS
DIVER EARPHONE VOLUME – has separate earphone volume controls for each diver. This
allows the tender to adjust the optimum earphone volume level for each individual
diver.
3.2.1 DIVER MICROPHONE VOLUME – has separate microphone volume controls for
each diver. This allows the tender to adjust the optimum microphone volume level
for each individual diver.
3.2.2 DIVER PUSH-TO-TALK SWITCH – provided for each diver and used only in the 2-
Wire Mode. This function allows the tender to carry on a private conversation with
only the diver(s) selected.
3.2.3 DIVER MICROPHONE CONNECTION (RED) – is a dual 5-way binding post jack
(color-coded red) that functions as both an output (earphone) and input
(microphone) for the diver as controlled by the PUSH-TO-TALK BUTTON and
PUSH-TO-TALK JACK. Using this connection, the diver can be wired in either 2-
Wire or Full Duplex (4-Wire) mode.
To connect the diver in 2-Wire mode, connect both the diver microphone and
earphone to this jack. If the diver umbilical uses banana plugs, simply stack both
plugs into this jack as shown in the 2-Wire wiring diagram section 3.5. In this mode,
the diver microphone will be active and heard on tender headset and/or PANEL
SPEAKER unless the PUSH-TO-TALK BUTTON or PUSH-TO-TALK JACK is used.
When a pre-amp microphone is used in the 2-Wire mode setup, it is required to
have special speakers supplied only by Amron. Contact Amron for more
information.
To connect the diver in Full Duplex (4-Wire) mode, connect the diver microphone to
this jack and the diver earphone the DIVER EARPHONE jack simply stack both
plugs into this jack as shown in the 2-Wire wiring diagram section 3.6. The diver
can use this mode even if the tender is wired in 2-Wire mode.