User's Manual

GENERAL DESCRIPTION
The ACU is a low power, 7-channel, FM stereo transmitter, operating in the FM band (88.1-
107.7 MHz). The unit has 7 transmitter “cards” integrated into a single 19-inch chassis for rack
mounting. It has two 88.1-107.7 MHz output ports for two separate antenna systems. The
transmitters can individually operate in either stereo or mono mode. Each transmitter card can
be set to a specific operating frequency using the two 10-position rotary switches on each card.
The ACU has an internal regulator and power supply to provide 48VDC at 0.5 Amps to external
equipment. The unit is powered by the 37.5-volt supply from the rail transit vehicle.
The product is to be professionally installed and used in mass transit rail vehicles.
FCC Notice
FCC ID: QY4-580230
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference and
(2) This device must accept any interference received, including interference that may cause
undesired operation.
The user is cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
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