Control Module Cm9001 (Mod Gv 40288); Rf Input - Hitachi E-Compact High Power Series Operation Manual

4.1. Control Module CM9001 (MOD GV 40288)

The E-Compact series of transmitters utilize a dedicated 1RU controller chassis, CM9001. The
controller chassis has several functions including:
Access to exciter setup / monitoring
AC mains power monitoring
RF drive signal monitoring
RF Exciter Level Control to RF Splitters
RF power amplifier metrics
RF output signal monitoring (FWD & RFL)
Local user interface
USB port for software diagnostics / updates
External Web GUI status monitoring and control interface
The CM9001 controller gathers the status monitoring of all the transmitter subassemblies to provide to
the operator transmitter status information, either locally or remotely. The controller provides transmitter
telemetry including RF power monitoring. A user-friendly interface on the transmitter controller chassis
includes:
A front panel LCD screen provides transmitter status information
A front-panel control interface for menu driven commands (up/down/right/left navigation, escape,
& OK buttons)
LED status indicators
The CM9001 transmitter controller is paired with the TV exciter. For transmitter systems configured
optionally with dual drive, the transmitter is equipped with two / redundant controllers, one for each
exciter eliminating single point failures for even higher system reliability.

4.1.1. RF Input

The CM9001 Control Module redistributes the RF signal received from the exciter by controlling its level
of distribution to the Power Amplifiers Drawers as a function of the transmitter's rated nominal power. For
this the CM9001 is set at the factory to receive an RF signal level of 0dBm with minimum / maximum
tolerances of -1dBm / + 1dBm.
EXCITER (NOT DED)
RF: 0dBm (Typical)
+1dBm (max)
-1dBm (min)
E-Compact HP-BB3 Series
CONTROL MODULE CM9001
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