MODEL 2810E-2001 USER MANUAL
2810E-2001 UM
REV 3.0
8
3.1.5
OPERATOR VOLUME - This control sets the volume for the operator's earphone
and/or panel speaker. Rotate this knob clockwise to increase the volume.
3.1.6
PANEL SPEAKER - A waterproof, acoustic speaker that allows the operator to listen
to the chamber occupants and acts as a microphone by using the PUSH-TO-TALK
BUTTON. The volume level is controlled by the CHAMBER TO OPERATOR
VOLUME control and it can be turned off using the SPEAKER SWITCH.
3.1.7
BATTERY CONDITION INDICATOR - This LED is used by the operator to
determine the available battery level. A steady green light means that the battery
charge level is greater than 30%. When the battery reaches approximately 30%
remaining life, the LED will start blinking at a rate of about once per second. When
the battery reaches its end-of-charge, the LED will turn off and the 2810E will go into
shutdown mode to prevent damaging the communicator or rechargeable battery. It is
advised that the 2810E-2001 be connected to an AC outlet as soon as possible
once the BATTERY CONDITION INDICATOR starts blinking. While there should be
enough time to safely complete a normal diving operation, the exact amount of time
is dependent on the age and condition of the sealed lead acid battery.
3.1.8
OPERATOR HEADSET - This is the dual banana jack (color-coded black) that
functions as both an output (earphone) and input (microphone) for the operator as
controlled by the PUSH-TO-TALK BUTTON and PUSH-TO-TALK JACK. Using this
connection, the operator can be wired in either 2-Wire or Full Duplex (4-Wire) mode
regardless of the mode used for the chamber.
To connect the operator 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
OPERATOR MICROPHONE jack (red). In this mode, the operator does not have
to use the PUSH-TO-TALK BUTTON to communicate with a chamber occupant
who is also operating in the Full Duplex (4-Wire) mode. This configuration can be
used even if the chamber is wired in 2-Wire mode. In that situation, the operator 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 operator is
near the 2810E-2001. To prevent this, the PANEL SPEAKER can be turned off
using the SPEAKER SWITCH. Another option is to move the operator away from
the 2810E-2001 by using the Amron Model 2822-28 Walk-and-Talk Module
accessory. This allows the operator to communicate while other members of the
chamber operations crew listen using the PANEL SPEAKER. This module comes
with 25 feet (7.6 meters) of cable (custom cable lengths are available).
The operator can also be connected in 2-Wire mode by stacking both the
earphone (black) and microphone (red) banana plugs into the OPERATOR
HEADSET jack (black). The chamber does not have to be connected in 2-Wire
mode if the operator is in 2-Wire mode. In order to talk to occupants, the operator
must use either the PUSH-TO-TALK BUTTON or PUSH-TO-TALK JACK. Since
the headset microphone is not active until one of the push-to-talk methods is used,
there is no chance for acoustic feedback to occur and surface conversation or
noise is not transmitted to the chamber and the PANEL SPEAKER can be left on.