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1. Use the supplied Power Cord assembly for power connection. Con-
nect the red wire to the "Positive (+)" terminal, and the black wire to
the "Negative (–)" terminal of the power source.
Reverse polarity connections will damage the VLH-3000A.
2. Use #22 AWG (or larger) stranded, plastic-jacketed wire to connect
the PA Horns ("FWD" and "AFT" terminals) and Intercom Speakers
("IC1" and "IC2" terminals).
3. An external 4-Ohm 6 W speaker may be connected ("EXT SP" termi-
nal), if desired.
4. For the PA Horn, it is recommended that a 4-Ohm 30 W horn speaker
be used. Also note that an 8-Ohm speaker may be used, but the loud-
ness will be reduced.
5. The VLH-3000A can use the optional MLS-300i Intercom Speaker.
This is connected to any of the Intercom terminals ("IC1" or "IC2").
6. See Detail "A" in Figure 2, If a 2-wire speaker (such as a MLS-300
External Speaker) is connected to the Intercom terminals ("IC1" or
"IC2"), the positive wire should be connected to the center terminal
and negative wire should be connected to the left-hand terminal. Do
not connect the any wire to the right-hand terminal! If you connect one
of the wires of a 2-wire speaker to a right-hand terminal, the speaker
will beep continuously when turned on.
7. Put the supplied Protection Cover to the terminals to avoid a short cir-
cuit.
VLH-3000A
CAUTION
Page 5
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