13
8. BASIC OPERATION
In this section we will discuss the basic operation of the multiplexer without doing any
programming. We will assume the programming is at the factory default settings. There
are two basic modes of operation in the QM; namely the Record mode and the Play back
Mode.
Power Up the QM
Power up the QM after making the connections as shown in the Figure 3. The LEDs
on the RECORD and FULL buttons will be turned on which is the power up operational
mode. You will see the multiplex image on the VCR monitor indicating that the QM is
sending the Multiplex record signal to the VCR. The Call monitor will also have the multi-
plexed signal in case you are only using one monitor. To view the call monitor sequencing
throught the live views of all cameras press “MON” and the “SEQ”. Any blinking LED on
the CAM buttons indicate that cameras’ input is not present and a video loss is detected.
6.1 Record Mode
There are 5 possible ways of recording in the QM; Multiplex, Quad, Zoom, Full
Screen, and Full Screen Sequence recording. The VCR monitor output will always show
the actual video signal going to the input of the VCR. While you are recording in any of the
above modes you can also view the full screen output of any specific camera or all the
cameras sequentially on the call monitor. To do that make sure a monitor is connected to
the MON output of the QM as shown in figure 3. See the MON mode to set this option.
Multiplex Recording / Viewing
By default the QM will power up in the multiplexed recording mode. The LED on the
RECORD and FULL buttons illuminated only indicates that the QM is sending multiplexed
images to VCR. You can see the multiplexed image on the VCR monitor also. You can
also activate this mode by pressing the “RECORD” button any time. If you want to see any
specific camera on your call monitor, press the MON button then press the “CAM #”
(where # is the number of camera you want to view). If you want to automatically sequence
through all the cameras, press the SEQ button. The LEDs on the MON, SEQ, and
RECORD button will be on, while the LEDs on the CAM buttons will be ON sequentially
and will remain ON for the amount of time set in SEQUENCE DWELL . See the program-
ming section to set the sequence timing. If you connect a separate monitor on the “VCR”
output then you can view the multiplexed image on that monitor. If you desire to view the
multiplexed recording image on the call monitor, press the RECORD button.
Warning: When the MON LED is off you can change the recording output signal to the
VCR. The normal mode of multiplexed recording is when the FULL LED is on. If this is off
then either one camera or a sequence of cameras is being recorded as in a normal video
switcher.
