2830A THREE DIVER COMMUNICATOR USER MANUAL
2830A-UM
REV 5.0
10
4.5
OTHER CONNECTIONS
4.5.1
EXTERNAL BATTERY (INPUT)
–
External 12 V
DC
power input, to operate the unit
from an external battery or power source. Power requirements are 12 Volts DC
(nominal), not less than 9.5 or more than 18 volts. Source must be able to supply a
peak current of 3 Amps for proper operation. These jacks are used for charging the
internal batteries.
It is highly recommended to use an Amron External Charger, Model 2823-603 as
external power supply. The Amron External Charger was specifically designed for
use with all Amron communicators and has a high degree of insulation between the
primary and secondary circuits for diver protection and safety.
WARNING: When using the EXTERNAL POWER SOURCE, it is required to
use an isolated DC power supply that has very low ripple voltage. It has to be
properly isolated from AC line for diver protection and safety. An improperly
isolated power supply could cause diver electric shock.
4.5.2
RECORDER OUTPUT
–
This is a single RCA Phono jack (color-coded black) that
provides a transformer isolated signal 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.
4.5.3
AC POWER
–
AC power cord is mounted in the option panel located on right side
of the communicator front panel. The option panel has an AC power indicator to
identify the presence of AC power.
The communicator operates over a voltage range of 90-264 V
AC
with a frequency
range of 47-440 Hz. There is no user action requires as the power supply
automatically adjusts to the input voltage provided.