Specifications

44 Video Multiplexer with Video Motion Detection
MULTIPLEXED VIDEO
TRANSMISSION
Two multiplexers can be employed to transmit video from multiple
cameras over a single video communication link. The link may be
coaxial cable, a microwave channel, or any other medium that
supports real-time video. Where two communications links are
available, simultaneous two-way video communication is possible.
Multiplexed video transmission requires that one multiplexer be
installed at each location. See Figure 3  One-Way Multiplexed
Video Transmission, for details.
A multiplexed video link allows users at one or both ends to display
local or remote cameras. Multiplexer operation is normal except
that you press Function+Tape to display the remote cameras.
One-Way Video Transmission
One-way multiplexed video transmission requires two multiplexers
and one video quality communication link. The link joins the
vcr out connector at Site A to the vcr in connector at Site B. Both
Site A and Site B can view the cameras located at Site A. Site B can
view either local cameras (press Live) or the cameras located at
Site A (press Function+Tape).
Two-Way Video Transmission
Two-way multiplexed video transmission requires two multiplexers
and two video quality communication links. The communication
links cross connect the multiplexer VCR connectors at these sites:
vcr out at Site A connects to vcr in at Site B and vice versa. Both
sites can view either local cameras (press Live) or the cameras
located at the other site (press Function+ Tape).
To establish a multiplexed video transmission link:
1. Connect two multiplexer units as described above.
2. Set VCR RECORD TIME on both multiplexer units to 001 HRS
for NTSC/EIA units, or 002 HRS for PAL/CCIR.
3. Press Function+Tape on each multiplexer. The multiplexer
enters the video transmission mode and displays all remote
cameras.
If you get a MISSING TAPE INPUT message, check the connections
and make sure that vcr in is connected to vcr out on the other
unit. Once the link is established, press the Live button to view
local cameras, or press Function+Tape to view remote cameras.