4. HOW TO USE
20
4.4
Signal I/O
Apply the primary signal to the primary input connector and the backup signal to the backup
input connector.
Depending on the front-panel SYNC SOURCE setting, the primary or backup signal is
transmitted from the output connector. Connect the output connector to the system's signal
input connector.
The types of signals that you can apply to the LT 4441/4442 differ depending on the channel.
For details, see Table 4-2, “Types of input signals.”
Apply signals with an impedance of 75
Ω
to the primary and backup input connectors. Also,
terminate the output connector at 75
Ω
.
(The signal that is not selected with the front-panel SYNC SOURCE setting is terminated
internally at 75
Ω
.)
Figure 4-9 Signal I/O
