User's Manual

Appendix C

Using the Charge Cable

Figure 38. WEMS Charge Cable.

Luna iMonitoring provides a device Charge Cable, shown in Figure 38 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.

The Charge Cable serves two purposes:

1) It quickly charges the battery to full capacity.

2) It maintains a full charge on the battery in a lab setting where the

solar panels can not charge the battery.