User's Manual

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 2 27
If used, connect the external forward power sample from the pre-filter coupler to the
50Ω BNC Input C jack (J3) located on the rear panel of the CX drawer.
If used, connect the external forward power sample from the post-filter coupler to the
50Ω BNC Input D jack (J4) located on the rear panel of the CX drawer.
If your system contains the Optional Internal GLONASS or GPS Kit, the output of the
GPS Antenna connects to the (J5) TNC connector on the rear panel of the CX drawer.
This kit supplies 10 MHz and 1 PPS references for use in the CX drawer.
In Translator (RD) systems there is a SMPTE-310 loop-thru from the output of the
Demodulator Board at J4, mounted on the rear panel of the transmitter or driver drawer,
to the input to the Modulator Board at J5, mounted on the rear panel of the transmitter
or driver drawer. There is a jumper installed from J4 to J5. To feed SMPTE-310 directly
to the Modulator Board, remove the jumper and insert SMPTE-310 into J5. This is only
used in Translator (RD) systems not Transmitter (TD) systems.
CX Driver/Exciter Output Connections
The digital RF On-Channel output of the CX drawer is the (J9) 50Ω “N” connector RF
output jack located on the CX drawer rear panel.
CX Driver/Exciter Single Drawer Output Connections
In CU0TD/RD-1 thru CU0TD/RD-5 systems, the output of the CX drawer at J9 connects
to the low pass, digital mask filter and then to the antenna for your system.
CX Driver/Exciter Multi Drawer Output Connections
In CU1TD/RD-1 and higher power systems, the output of the CX drawer at J9 is
connected to J1 the 50 Ohm “N” connector RF input jack located on the rear panel of the
amplifier drawer or to a splitter in multiple amplifier systems.
In CU1TD/RD-1, CU1TD/RD-2 or CU1TD/RD-3 systems, check that the system power
metering interface cable is connected from J11 the 9 position “D” connector located on
the rear panel of the driver drawer to J4 the 9 position “D” connector located on the rear
panel of the amplifier drawer. This cable provides the control, status and operating
parameters of the amplifier drawer to the driver drawer.
In CU2TD/RD and higher power systems the output of the driver drawer is split and
connected to J1 the “N” type connector RF input jack on the amplifier drawers. Check
that the system power metering interface cable is connected from J11 the 9 position “D”
connector located on the rear panel of the driver drawer to J9 the 9 position “D”
connector located on the System Metering Board. Also check that the serial connection
is cabled from the RJ-45 connector J13 on the driver drawer to the RJ-45 connector J1
on the system metering board. The system metering board provides serial RJ-45
connections at J2 and J5 that are cabled to the RJ-45 serial port J5 on the rear panel of
the amplifier drawers. These cables provide the control, status and operating
parameters of the amplifier drawers to the driver drawer through the System Metering
Board.