3: Configuring and Installing the Device
50
Verint Video Intelligence Solutions
3. Screw the SMA connector of the antenna cable to the antenna connector on the S4200
and tighten it with a 0.25-inch (0.6 centimeter) wrench.
4. Apply two or three layers of electrical tape around all RF connections.
The antenna cable and connectors are weather-tight; however, vibration caused by the
wind will over time loosen the connectors and reduce the efficiency of the gaskets. The
electrical tape will prevent this situation.
5. With SConfigurator, enter the new antenna gain and change the antenna selection from
Integrated to External (see page 40).
6. Carefully align the antennas of the S4200 and access point so that they have a clear RF
line of sight.
7. To improve the signal level between both devices, use the antenna alignment utility
from SConfigurator.
Connecting the RS-422/485 Serial Port
The Nextiva edge devices support only the RS-422 and RS-485 asynchronous protocols. For
any other protocol, you may need a converter.
On an S4200-2V transmitter, you can transmit serial data to two PTZ cameras if the
protocol is RS-485. The corresponding PTZ keyboard must be able to reference each
camera individually. In this context, perform the serial connections on both cables.
RS-422 allows you to have one PTZ camera and one fixed camera.
Use the video/serial/power cable to properly connect the device to a serial peripheral. Here
is the wiring scheme for the four-wire RS-422 or RS-485 protocol:
Warning: Do not over-tighten to avoid damaging the connector. The recommended
torque is 8 lbf-inch (100 N-cm). You could use a calibrated SMA torque
wrench (for instance, from the Pasternack company, available at
www.pasternack.com).
Never leave the antenna connector without either the cap or the SMA
connector. The antenna connector must be terminated to avoid damaging the
device radio.
Cable
Peripheral
Signal Name
Wire Pair
Wire Color
Signal Name
Rx+
green/black
green
Rx+
Rx-
black
Rx-
Tx+
yellow/black
yellow
Tx+
Tx-
black
Tx-
