2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL
2825R-UM
REV 3.0
8
4.2.2
Tender Microphone
–
This is a dual banana jack (color-coded red) that functions
as the microphone input from the tender's headset. It is only used if the tender is in
Full Duplex (4-Wire) mode.
4.2.3
Push-To-Talk Jack
–
This is a dual banana jack (color-coded yellow) that allows
for remote keying of the push-to-talk function of the 2825R. The difference between
using the PUSH-TO-TALK JACK and PUSH-TO-TALK BUTTON is that the button
allows the tender to communicate using the PANEL MICROPHONE as a
microphone.
4.3
Diver Controls
The following controls are located on the front panel in the individual diver sections.
4.3.1
Diver Microphone Volume
–
The 2825R has a separate microphone volume
control for each diver. This sets the gain for the diver’s microphone amplifier and
controls the diver’s volume level to the tender and other diver.
4.3.2
Diver Earphone Volume
–
The 2825R has individual earphone volume controls
for each diver. This allows the tender to set the best volume level for each diver.
4.3.3
Diver On/Off
–
There is a separate DIVER ON/OFF momentary switch for each
diver. This control allows the tender to temporarily cut off the microphone of an
individual diver. It can be used in 2-Wire or Full Duplex (4-Wire) modes.
4.3.4
Crosstalk
–
There is a separate CROSSTALK momentary switch for each diver.
Normally used in 2-Wire mode, this control allows the selected diver to talk to the
other diver while the tender monitors the conversation.
4.4
Diver Connections
4.4.1
Diver Microphone
– This 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
regardless of the mode used for the diver.
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 as shown in the
wiring diagram in section 4.10. The diver can use this mode even if the tender is
wired in 2-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 wiring diagram in section 4.9. 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
activated.