Rack Cards
Rack cards are designed to be installed in one of Vicon’s
19-inch (483-mm) EIA standard card-cage racks, either
the V515R-PS or the V517R-PS. Follow these steps after
selecting data format, contact closure and alarm output.
CAUTION:
Although a rack card may be installed
without turning off power to the rack (hot-swap-
pable), Vicon recommends that the power switch on
the rack power supply is turned OFF and that the rack
power supply is disconnected from any power source.
1. Make sure that the card is oriented right-side up and
slide it into the card guides in the rack until the edge
connector at the back of the card seats in the corre-
sponding slot in the rack’s connector panel. Seating
may require thumb pressure on the top and bottom of
the card’s front panel.
CAUTION:
Take care not to press on any of the
LEDs.
2. Tighten the two thumb screws on the card until the
front panel of the card is seated against the front of
the rack.
CONNECTIONS
Video Cable Connection
Connect the video source cable to the input BNC jack on
the V739T transmitter. Connect monitor equipment to the
output BNC jack on the V739R receiver.
Vicon suggests that Belden number 9259 or equivalent
coaxial cable should be used.
Fiber Optic Cable Connection
Most cable manufacturers identify the individual fibers in
the cable. Select appropriately terminated fiber and mark
both ends with unique identification label (e.g., for cable
no. 03, fiber no. 08) to ensure that the fiber connected to
the near end is the same one that is connected to the far
end. The proper optical connection links the transmitter's
OUT port to the receiver's IN port.
1. Wipe the inside of the port’s sleeve with a lint-free
pipe cleaner moistened with reagent-grade isopropyl
alcohol. Blow dry with dry air.
2. Clean the connector using a lint-free cloth dampened
with alcohol to thoroughly wipe the side and end of
the ferrule. Blow the ferrule dry with dry air. Visually
inspect the ferrule for lint.
3. Fasten the fiber optic cable to the port.
Power Connections
Standalone modules may be powered either by 12 - 16
VAC or by 12 - 16 VDC. Connect input power according
to the label on the module. See Figure 3.
Rack modules’ power connections are made automatical-
ly when the card is installed. To supply power to the rack,
connect the rack power supply to an AC outlet and set the
power switch to ON.
OPERATION
V739 links operate automatically once installed. Refer to
LED OPERATION and Tables 1 and 2 for an explanation
of LED color codes.
LED OPERATION
The V739 has 5 LED indicators that are very useful in
describing the current state of operation, as well as the
current status of data flow and fiber optic signal strength.
These indicators are LEVEL/LOSS, VIDEO IN
(Transmitter) or VIDEO OUT (Receiver), CMND IN
(Transmitter), CMND OUT (Receiver), RESP OUT
(Transmitter), RESP IN (Receiver) and SYNC IN
(Transmitter), SYNC OUT (Receiver). Tables 1 and 2 pro-
vide a summary of LED operation. See Figure 4. They
function as follows:
LEVEL/LOSS Indicator
This LED is useful for indicating the relative optical signal
strength at the fiber optic receiver. When sufficient opti-
cal power is being received, the LED shines green. As
the optical power is decreased, as happens through long
fiber runs, splices, or connections, the intensity of the
LEVEL/LOSS LED will diminish until the limit of the
V739's sensitivity range has been reached. At this point
the LED will be OFF. If any additional optical attenuation
is introduced, the LEVEL/LOSS LED will turn bright RED,
indicating an insufficient amount of optical power is being
received.
3
VICOAX® VIDEO AND DATA SYSTEM
