User's Manual

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 2 23
If your system contains an optional preamp check that the 24VDC power supply is
connected to the preamp and an AC source.
Multi Amplifier Drawer Systems
If your system is a CU1TD/RD-1, CU1TD/RD-2 or CU1TD/RD-3, it also contains one
amplifier drawer. In CU2TD/RD and higher power systems, multiple amplifier drawers
are included. Each amplifier drawer is configured for 230 VAC operation only. Check
that the ON/OFF circuit breaker in the CU1TD/RD-1 amplifier drawer, or circuit breakers
in N+1 amplifier drawers, CU1TD/RD-2 or CU1TD/RD-3, located on the rear panel on
either side of the AC power jack, are OFF. Connect the AC power cord supplied with the
drawer from J10 on the rear of the drawer to the 230 VAC source. Refer to Table 1 for the
typical voltage and current requirements for CX Systems.
AC Distribution Box
If the system is mounted in a rack, an AC distribution box wired to a quad receptacle box
is used to connect the AC to the individual drawers. The AC distribution box is mounted
on the upper right side of the rack accessed through the back of the rack.
The main AC input for a C1TD-1 transmitter is, 195-253VAC, at least 10Amps, 50/60Hz.
The customer should provide a single point disconnect for the main AC input that connects
to the transmitter.
The AC input lines connect inside the AC distribution box by first removing the two screws
that hold the cover plate to the front of the AC distribution box. Then connect the three
wire main AC input to the input lugs, L1 to L1, L2 to L2 and Ground to Ground.
The power amplifier drawer and the quad receptacle box connect through AC power cords
directly to the AC distribution box. The AC power to the optional receiver drawer and the
exciter/driver drawer are connected through AC power cords that plug into the quad
receptacle box.
AC Distribution Panel
If the system is mounted in a cabinet, an AC distribution panel is supplied to connect the
AC to the individual drawers. The AC distribution panel is mounted facing the rear of the
cabinet and accessed through the back of the cabinet.
The main AC input for a CU2TD transmitter is, 195-253VAC, at least 30Amps, 50/60Hz.
The customer should provide a single point disconnect for the main AC input that connects
to the transmitter.
The AC input lines connect to the AC distribution panel by first removing the four #8
screws that hold the cover plate to the front of the AC distribution panel. Then connect
the three wire main AC input to the input lugs located at the top left of the AC distribution
panel, L1 to L1, L2 to L2 and Ground to the Ground lug on the left.