User Manual

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Appendix C
Using the Charge Cable
Figure C-1. WEMS Charge Cable.
Luna iMonitoring provides a device Charge Cable, shown in Figure C-1 above,
with most Beta Test versions of the Wireless Enabled Monitoring System. The
Charge Cable is for use in a lab setting and is not tested or approved
for use in hazardous environments. The Charge Cable has an SMA connector
at one end and a USB connector at the other end. The SMA connector plugs
into the SMA antenna connector on the WEMS device being tested. The antenna
on each WEMS device simply screws off of the SMA connector. The USB connector
plugs into the USB port of any computer. The SMA connector serves as an antenna
connection as well as a power connection. Therefore, the device receives power
from the USB port on the computer when the computer is on. Even though the
antenna is disconnected, the device can still receive and transmit radio signals in
a lab setting.
SMA
Connector
USB
Connector