2820A-XX & 2825A-XX SERIES TWO DIVER COMMUNICATOR USER MANUAL
282XA-UM
REV 5.0
6
3.1.6
TENDER EARPHONE VOLUME
–controls the volume level for the tender's
earphone and/or PANEL SPEAKER. Rotate this knob clockwise to increase the
volume from all the divers
3.1.7
BATTERY CONDITION INDICATOR
– a steady GREEN LED light indicates
battery charge level is good. Blinking GREEN LED light indicates battery charge
level is at a low level with less than 3 hours of running time available. Steady RED
LED light indicates battery charge level is below the level necessary to guarantee
proper operation.
WARNING: When BATTERY CONDITION INDICATOR is steady RED LED light,
the batteries should be replaced or recharged immediately.
3.1.8
PANEL SPEAKER
– is a waterproof acoustic horn speaker that allows the tender
to listen to the divers. The volume level is controlled by the EARPHONE VOLUME
controls and it can be turned off using the SPEAKER SWITCH.
3.1.9
PANEL MICROPHONE
– is a water-resistant condenser microphone that allows
the tender to talk to the divers using the PUSH-TO-TALK BUTTONS. The volume
level is controlled by the MICROPHONE VOLUME controls. The PANEL
MICROPHONE is muted when the SPEAKER SWITCH is turned off.
WARNING: Do not plug or cover the PANEL MICROPHONE hole. This may
reduce or eliminate the tender-to-diver communications, and possibly
damage the microphone.
3.1.10
TENDER HEADSET JACKS (BLACK)
–are dual banana jacks (color-coded black)
that functions as both an output (earphone) and input (microphone) for the tender
as controlled by the PUSH-TO-TALK BUTTON and PUSH-TO-TALK JACK. Using
this connection, the tender can be wired in either 2-Wire or Full Duplex (4-Wire)
mode regardless of the mode used for the diver.
To connect the tender in the Full Duplex (4-Wire) mode, connect the earphone
(black) banana plug of the headset to this jack and the microphone (red) to the
TENDER MICROPHONE jack (red) as shown in wiring diagram section 3.6. In this
mode, the tender does not have to use the PUSH-TO-TALK BUTTON to
communicate with a diver who is also connected in the Full Duplex (4-Wire) mode.
This configuration can be used even if the diver is connected in 2-Wire mode. In
that situation, the tender is required to use the PUSH-TO-TALK BUTTON or
PUSH-TO-TALK JACK.
The headset microphone is always active, which means that there can be acoustic
feedback between the PANEL SPEAKER and the microphone if the tender is near
the communicator. To prevent this, the PANEL SPEAKER can be turned off using
the SPEAKER SWITCH. Another option is to move the tender away from the
communicator by using the Amron Model 2822-28 Walk-and-Talk Module
accessory. This allows the tender to communicate while other members of the
surface crew listen using the PANEL SPEAKER. This module comes with 25 feet
(7.6 meters) of cable (custom cable lengths are available).
Summary of Contents for 2820A
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