Installation
The Multi-DC is intended for indoor use only; it is not water resistant. If you use it outdoors
(Field Day, for example) you must protect it from rain.
Position your Multi-DC in a convenient spot on your operating desk, anywhere within reach of its
interface cables. The case has a mounting flange on each side; you can screw it to your desk or
wall if you wish.
Connect the input jack to a suitable source of DC (Typically 13.8 VDC). It should be at least 12
volts, but not more than 15 volts, and be capable of sourcing enough current (up to 3 amps ) to
run all of your accessories (see the individual manuals for current requirements). Best practice is
to use a regulated power supply, but the Multi-DC provides some internal regulation, so an
unregulated supply is acceptable in this application. Connect your accessories to the output jacks
as needed using the provided cables.
Each set of outputs (1, 2, 3 and 4, 5, 6) is internally regulated to 12 vdc. Each set can source up to
1.5 amps. Voltage regulation inevitably dissipates some heat, so it’s normal for the Multi-DC
case to be somewhat warm during operation.
The Multi-DC is internally protected against short circuits. There are no internal fuses. If you
short an output, the regulator for that output set simply shuts down, reducing output voltage to
near zero. Normal operation resumes automatically when the output is un-shorted.
Operation
To operate your Multi-DC you just, well, operate. The Multi-DC has no controls and requires no
input from you. Your Multi-DC simply routes regulated power to your accessories.
Application Notes
Base Station Use
Your Multi-DC can go practically anywhere on your operating desk. Some obvious choices are
on the table behind your radios, or on the floor with the rest of the electrical hookups.
Mobile Use
The Multi-DC is ideal for mobile operation. You can mount it on the dashboard with Velcro tape
in any convenient location, or behind your radio.
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