Module Power Connections; Antenna Connections - Sierra Wireless AirLink RV50 Product Manual

using the serial cable supplied with the SC105. The SC105 is attached to the datalogger CS I/O
port using the SC12 cable supplied with the SC105.

7.3.2 Module power connections

When connecting through the CS I/O port, power for the module is provided by the data logger.
When connecting through the RS-232 port, power must be supplied through the Power In con-
nector.
Controlling power to the RV50 (p. 32) provides an example CRBasic program using the
IPNetPower()
instruction to control power to the RV50. This functionality is available in the
CR300 series (all operating systems), the CR6 series with operating system 09.00 or greater, and
the CR1000X with operating system 03.00 or greater. To control power in these data loggers with
older operating systems or any CR1000, CR800 series, or CR3000, you will need to use a SW12V
port on the data logger and communicate over RS-232. When using a SW12V port, we recom-
PPPClose()
mend using a instruction to shut down the network prior to powering down the
RV50.
The USB port provides power for module configuration, but is not sufficient for normal oper-
ation.

7.3.3 Antenna connections

Connect the antenna to the Cellular SMA antenna connector.
FIGURE 7-1. Antennna connections
Use of the Diversity antenna can improve performance, but is not required.
Antenna diversity, also called space diversity, is a scheme that uses two or more antennas to
improve the quality and reliability of a wireless link. Often, especially in urban and indoor envir-
onments, there is no clear line of sight between transmitter and receiver. Instead, the signal is
reflected along multiple paths before finally being received. Each bounce can introduce phase
RV50 Sierra Wireless AirLink® 4G LTE Cellular Modem 19