75
Ω
. In multiple- unit operation, the input of units after the first is connected to the output of the
preceding unit.
Output - Composite output to microwave or satellite transmitter. In multiple unit
operation, the output of all but the last unit connects to the input of subsequent units.
Receiver:
Input - Composite input from microwave or satellite receiver. In multiple-unit operation, the
input of units after the first is connected to the output of the preceding unit.
Output - Video output to monitor or video receiving equipment. If video is not used, this port
should be terminated with 75
Ω
. In multiple unit operation, the output of all but the last unit
connects to the input of subsequent units.
2-12. COMPOSITE/STEREO/SAP/PRO/MONITOR CONNECTIONS.
These connections are BNC connectors on the rear of the shelf. A detailed description of the
connections are:
Transmitter:
BTSC Composite - InThis 75
Ω
input is designed to accept the output of a BTSC composite
generator which has built-in SAP and PRO channel generators, or which provides combining
inputs for separate generators. The 100% modulation level for this input is 1V RMS (2.8V
p-p). If this input is used, the alternate inputs listed below should not be used.
Stereo Input - This 75
Ω
input is designed to accept the output of a BTSC stereo generator
which does not have built-in SAP and PRO channel generators or which does not have
combining inputs for separate generators. The 100% modulation level for this input is 1V RMS
(2.8V p-p).
SAP Input - This 75
Ω
input is designed to accept the output of a separate SAP Channel
generator. The 100% modulation level for this input is 1V RMS (2.8V p-p).
PRO Input - This 75
Ω
input is designed to accept the output of a separate Professional
Channel generator. The 100% modulation level for this input is 1V RMS (2.8V p-p).
455 Operation Manual
Page 15
6/23/98
