Amron 2810E, Руководство пользователя

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MODEL 2810E USER MANUAL
2810E UM REV 7.0
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OPERATING ON AC POWER 5.3
As noted in section 3.4 on the EXTERNAL BATTERY JACK, it is possible to operate the
2810E with an external AC power supply. Review all warnings in this section and section 3.4
before using an AC power supply.
It is strongly advised that the 2810E only be operated for AC Power when using the Amron
Model 2823-603 Battery Charger. Amron has designed the 2823-603 with medical grade
electrical isolation that prevents any possible leakage of AC current into the 2810E
communicator. This protects the diver and tender from electrocution.
The 2823-603 Battery Charger can also be used to power the 2810E-1. It is recommend that
if the battery charger is going to be used for an extended period of time, the alkaline
batteries should be removed to prevent possible leakage.
MODES OF OPERATION 5.4
The Models 2810E and 2810E-1 have the ability to operate in either 2-Wire or Full Duplex
(4-Wire). Both the diver and tender can be connected in either mode and a combination of
modes can be used. For example, the diver can be connected in Full Duplex (4-Wire) mode
to take advantage of the new entertainment feature while the tender is wired in 2-Wire mode.
If either the diver or the tender is wired in 2-Wire mode, the tender must use a push-to-talk,
either the PUSH-TO-TALK BUTTON or PUSH-TO-TALK JACK, when talking to the diver.
2-Wire communication is defined as a single communication path, normally the diver is the
priority signal path
–
tender listens to diver. Signal reversing is accomplished by pushing the
PUSH-TO-TALK BUTTON
–
diver hears tender. Often times a 4-conductor communication
cable is used with 2 wires tied together as a pair for redundancy, this is still a 2-Wire system.
Since only one person can talk at a time, there is a level of discipline that goes with using 2-
Wire mode in order to obtain clear communication. One advantage of 2-Wire is that the
tender's microphone is not active unless one of the two push-to-talk controls, PUSH-TO-
TALK BUTTON or PUSH-TO-TALK JACK, are active. This eliminates any possible acoustic
feedback between the tender's microphone and the PANEL SPEAKER. It also prevents
noise from the surface reaching the diver and allows the tender to communicate with other
members of the surface crew without involving the diver. If the diver is connected in 2-Wire
mode, the AUDIO AUXILIARY INPUT cannot be used to deliver entertainment to the diver.
WARNING!
When operating your Amron Diver Communicator from AC mains, it is critical to use a
Ground Fault Circuit Interrupter (GFCI) and/or isolation transformer for tender and diver
safety. Surges and spikes are common on AC lines found onboard ships, from local
generators, or at the end of a long extension lines. These spikes can exceed 1kV! Such
spikes can be high enough to cause the input fuses on the Amron Model 2823-603
Battery Charger to blow and, in extreme cases, actually damage the charger circuitry.
Amron has designed this battery charger to isolate such faults to ensure that they will not
cause a safety issue for the diver or tender. Amron cannot guarantee that non-Amron
power supplies meet the same high standards and strongly advises against using any
such device to power your diver communicator.