User's Manual

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 2 25
Figure 3: CX Exciter/Driver Rear Panel
Port Type Function Impedance
J1 BNC
Input A: On Channel RF Input (RD) –78 to –8 dBm or
ASI Input or SMPTE-310M Input
50 Ohms
J2 BNC Input B: ASI Input or SMPTE-310M Input 50 Ohms
J3 BNC
Input C: RF Sense-1 Input from pre-filter coupler
See notes 5 & 6
50 Ohms
J4 BNC
Input D: RF Sense-2 Input from post-filter coupler.
See notes 5 & 6
50 Ohms
J5 BNC I/O E: On Channel RF Input (RD) 75 Ohms
J6 BNC
10 MHz Input: Optional External 10 MHz Reference
Input 50 Ohms
J7
BNC
1 PPS Input: Optional External 1 PPS Reference
Input
50 Ohms
J9 N RF Output: On Channel RF Output 50 Ohms
J10 IEC
AC Input: AC input connection to 85-264VAC Source
and On/Off circuit breaker
N/A
J11
9 Pos
Male D
Power Monitoring: Provides communication with
System Metering board, which generates forward and
reflected power samples for system metering and
ALC loop control. Also provides an interlock for the
Reject Loads through the System Metering board.
If not used (in systems with no external amplifier) a
jumper from J11-6 to J11-9 needs to be in place.
Refer to Table 3 or information on the connections.
N/A
J12
15 Pos
Female
D
Remote: Provides communication with Remote
Interface Module (A27). Used for CX Exciter remote
control and status indications. Refer to Table 4.
N/A
J13 RJ-45
Serial: Provides communication to System and to
external amplifier drawers, if present.
N/A
J14 RJ-45
Ethernet: Optional Ethernet connection. May not be
present in your drawer.
N/A
J15
Front
Panel
BNC
RF Sample: Output Sample from Output Detector
Board.
The sample level at J15 is approximately 60dB down
from the output power level of the drawer.
50 Ohms
J16
Front
Panel
9 Pos
Female
D
Serial: Used to load equalizer taps into the
modulator.
N/A
Table 2: CX Drawer Connectors