5
1.1.1 Powering the G200 Gateway
The gateway device requires a standard 120V AC outlet for power. Therefore, it will need to be installed near an open AC
outlet. The gateway device should also be installed as high as possible on a wall or beam, and away from large metal
objects when possible. The gateway has four holes on upper and lower flanges for use with fasteners.
The G200 gateway also provides a Lithium Polymer battery-based power backup system. The battery is 3.7V, 2600 mAh,
and will allow the G200 to continue to function if the unit is un-plugged, or AC building power is lost. This battery is not
serviceable by the end user. The G200 battery powered back-up duration is dependent on the update interval used for the
sensor nodes. Battery back-up duration will vary from
24 hours
, up to
1 week
of operation (for ten-minute sensor update
interval, to one-hour sensor update interval). The internal battery is not designed to provide extended G200 gateway
operation. It allows the gateway to notify the user that a power outage has occurred when AC building power is lost. The
system will then continue to function and report sensor data until the G200 gateway battery is depleted.
1.1.2 Gateway
Interfaces
The (standard) IP65 weather resistant enclosure variant of the G200 has only one external connection, this is the DC power
input cable (black gland nut shown below). There are other interfaces available on the G200 PCB, but access requires
removal of the gateway enclosure lid. For specific applications requiring regular access to one of these (optional) interfaces,
a custom cable assembly can be provided.
