4. BEFORE YOU BEGIN MEASURING
27
Table 4-2 Output signals
System Setting
Front Panel
SDI Select Output
INPUT
OUTPUT A/B
OUTPUT B
A
Reclocked version of the signal
received through INPUT A.
Reclocked version of the signal
received through INPUT B.
Ach/Bch
B
Reclocked version of the signal
received through INPUT B.
Reclocked version of the signal
received through INPUT B.
Ach
A/B
Reclocked version of the signal
received through INPUT A.
Reclocked version of the signal
received through INPUT B.
4.5
AES/EBU Signal I/O
The following figure shows the AES/EBU signal I/O connectors.
Figure 4-4 AES/EBU I/O connectors
The AES/EBU I/O connectors can be used as both input and output connectors. Use the EXT
AES MODE setting on the audio menu to switch the connector functions.
By setting EXT AES MODE to INPUT and MONITOR SELECT to EXT AES, you can use the
LV 7380 to measure the AES/EBU signals that are received through the AES/EBU I/O
connectors.
If you set EXT AES MODE to OUTPUT, the AES/EBU signal that is separated from the SDI
signal is transmitted from the AES/EBU I/O connectors.
The AES/EBU I/O connectors are terminated internally at 75
Ω
, so there is no need to
connect terminators to them when they are not in use. Connect cables with a characteristic
impedance of 75
Ω
to the I/O connectors.
4.6
External Sync Signal Input
On the video-signal-waveform and vector displays, you can apply an external sync signal to
display waveforms. Apply a tri-level sync signal or an NTSC/PAL black burst signal to the
external reference input connectors. The LV 7380 determines the sync signal format
automatically.
Figure 4-5 External sync signal input connectors
