NEC DTU-70, Instruction Manual

Page: 41 / 80

Table 2-1 System Configuration of TV Transmitter
TX TYPE
S type P type W type
Single Transmitter
(Single Exciter, Single Cooling)
Single Transmitter with Redundancy
(Dual Exciter, Dual Cooling)
Dual Transmitter in Parallel Operation
OUTLINE
DIAGRAM
EX
PA
PA
TX CONTROL
EX PA
PA
TX CONTROL
EX
PA
PA
TX CONTROL
EX
PA
PA
EX
TX-A
TX-B
9-Port U- Link Frame
& Combiner
SYSTEM CONTROL
Main/Stand-by exciters are switched
automatically in case of trouble on main
exciter.
EXCITER
OPERATION
SYSTEM
1 set : Single Operation 2 sets : Passive Reserve Operation 2 sets : Passive Reserve Operation
COOLING SYSTEM Single Operation Passive Reserve Operation Each separate transmitter performs
single operation
GWP-
G22996
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