Datavideo SE-500MU Instruction Manual page 9

5. MIC IN – CH1/CH2
Two Channels of unbalanced MIC input.
CH 1 (L) CH 2 (R)
MIC1 MIC2
MIC1 NC*
NC* MIC2
NC* NC*
*NC – Not Connected
6. Audio Input – Stereo RCA (Left/Right)
Connects unbalanced analog audio source (stereo) for
streaming and recording.
7. Audio Output – Stereo RCA (Left/Right)
Unbalanced analog audio output (stereo) for monitoring
the selected audio input source.
8. RS-232 Port
A remote control interface allowing the user to connect the
SE-500MU to a remote PC or remote controller.
9
States
MIC 1(L) and MIC 2(R) are
respectively connected to left (CH
1) and right (CH 2) channels.
When MIC 1 is connected to the
left channel (CH 1) and MIC 2 is
not connected to the right
channel (CH 2), the right channel
(CH 2) switch will replicate MIC 1
signal onto the right channel (CH
2) thus both channels are MIC 1
input signals.
When no MIC signal is connected
to the left channel (CH 1) and
only MIC 2 is connected to the
right channel (CH 2), MIC 2 signal
will not be replicated onto the
left channel (CH 1) which will thus
be grounded.
When no MIC is connected to the
two channels, the left channel
(CH 1) switch will ground the left
channel (CH 1) to prevent noise
from being generated.