Choosing the kit size (number of nodes)
The best kit size depends on the square footage of the area you want to cover, and the density of the obstructions within the area. For a given area, increasing the number of nodes leads to higher tracking and detection performance.
Installing the gateway
Choosing a physical location for the Gateway
When choosing where to place the Gateway, keep in mind the following best practices.
Make sure that the Gateway is within wireless range of ALL node locations. XANDEM's node transmission range is very similar that of typical Wifi. Generally it's best for the Gateway to be located within the node perimeter, but it is not necessary if it is still within range of all nodes.
Make sure the Gateway is at least 3 feet away from other wireless devices, including Wifi access points, cordless phones, and cellular transmitters. As with any alarm panel, choose a discrete and locked location for the Gateway to limit physical access to the device.
Install the Gateway at least 4 feet off the ground to maximize reception distance.
Don't place the Gateway inside metal enclosures or directly behind large metal objects that may block the wireless reception of the device.
Connecting power to the Gateway
The Gateway can be powered by the included wall adapter (5VDC with center-positive 5.1 x 2.1 mm barrel connector) or directly via a wired connector (PRO version only). To use the wall adapter, simply plug it in to the connector on the back of the Gateway enclosure.
To use a 12V power supply (PRO version only): 1. Open the Gateway enclosure by carefully removing the screws on the bottom. Make sure that all static electricity is discharged before touching the internal electronics.
Open the top of the enclosure and locate the 12V wire terminals on the circuit board. Thread your wire through the top half of the enclosure (that you just removed) via the wire port punch-out.
Push the stripped wires into the appropriate connection terminals on the circuit board.
Fit the enclosure around the circuit board and wire, then fasten the enclosure together using the screws that were removed in step 1.
Connecting audio to the Gateway
To connect audio to the Gateway, plug your speaker system directly into the 1/8” audio jack on the back of the Gateway. The audio signal will require amplification if the speakers are not powered.
Connecting the Gateway to a LAN
Connect the Gateway to the LAN/Internet by plugging in a standard Ethernet cable from the back of the Gateway to the appropriate network router/switch. Connecting the Gateway relays to a panel
Connecting the Gateway Relays
The PRO version of the gateway has four normally-closed relay contacts that can be used to connect the system to standard security and automation panel inputs. Each of the relay connectors are labeled as A, B, C, D. The rules that cause the relays to open are configurable in the “rules” engine within the software user interface. For example, relay A can open when motion is detected, relay B can be opened if node power is lost, etc.
The maximum current that can travel through these relay ports is 50mA.
Installing the Nodes
Choosing the Node locations
When choosing the Node locations, follow these best practices:
Install all nodes within range of each other. Typical transmission distances are comparable to those of WiFi. Use the "Diagnostics" page in the user interface to verify that all nodes are connecting well.
Install all nodes within range of the Gateway. The Gateway must be able to communicate with all nodes in the network. In some cases, this may require placing the Gateway near the area being sensed by the nodes and running a longer cable or repeater to the network/panel.
Install nodes 0.5-1.0 meters off the ground. Nodes should be placed at approximately torso level of a human body so that detection and tracking performance is maximized.
Install nodes securely on sturdy structures. If a node falls, shifts, or moves, it may lead to false triggering and lost performance.
Install nodes on the interior of the detection area walls. When the area to be sensed is surrounded by walls, install the nodes on the interior side of the walls to maximize detection and minimize false triggering.
When installing DC Nodes, it is recommended to test the node locations using portable battery power before hard-wiring an installation. This will ensure that performance is adequate before permanent wiring.
To avoid false alarms, try setting the threshold at a high value upon installation. Test the system, and if it’s not sensitive enough, decrease the threshold until it is. It’s better to approach the optimum threshold from higher thresholds, and work your way to lower values to avoid false triggering.
Don’t install nodes on the ground. This will severely limit sensing performance and communication range of your XANDEM system.
Don’t install the nodes around trees or foliage. Moving branches and leaves can cause false triggering if they are within or near the network area.
Don’t install nodes too high from the ground. Placing nodes too high will raise the sensing plane and reduce sensitivity. EXCEPTION: If deploying the nodes in a three dimensional configuration, this rule can be ignored as long as links from node to node cross through the area to be sensed.
Don’t place nodes around or near abrupt water flows. Appliances such as dishwashers, toilets, ice makers, and washing machines may cause false triggering if they abruptly drain or load water. Large water pipes with abrupt streams may also cause a false trigger unless they are made of metal which naturally blocks the sensing from the moving water.
Don’t install nodes on window sills. Placing the nodes too close to windows may cause the system to be sensitive to motion outside.
Don’t install the Gateway too far from the nodes. The Gateway has to remain in a location where it can communicate with all of the nodes in the wireless network.
Don’t mount nodes to structures that will move. If the nodes move, false triggering may occur. Make sure to secure the nodes firmly to something permanent and sturdy.
Avoid placing nodes or Gateways near microwave ovens. Microwave ovens can cause interference, so make sure nodes remain at least 5 meters from microwave ovens.
Avoid placing nodes directly behind large metal objects. This will cause some of the radio waves to reflect away from the interior of the network which decreases performance and creates possible sensitivity outside the detection area.
Installing Plug-In Nodes
To install a Plug-In Node, insert it into a standard electrical wall outlet or extension cord. Nodes should be installed 15 inches to 4.5 feet off the ground. The Node can handle voltages from 120VAC to 250VAC. For installation in non-US countries, use a plug adapter.
Installing Wired (DC) Nodes
Wired nodes can handle any DC voltage between 3 and 12 volts. 6V is preferred if possible. Each node typically uses 50mA of current. Ideal placement of the nodes is 4 feet off the ground.
IMPORTANT: Be careful not to reverse the polarity of the power to avoid damaging the devices.
- Remove the circuit board from the plastic enclosure by pulling the bottom and top components straight out.
- Choose a punch-out location where the wire will feed through the plastic. There is one on the bottom of the node enclosure, and one on the back. Using a screwdriver, remove the plastic punch-out.
- Install the rubber grommet in the punch-out using pliers.
- Thread your cable through the grommet.
- Connect your cable to the wire terminals.
- Replace the plastic cover and install the three enclosure screws on the back.
- Install the hangar screw on the structure that you will mount the node to.
- Hang the node on the screw using the keyhole slot on the back of the node.
Test with batteries first
It is best to test the placement of DC nodes using battery packs before installing permanent wires for node power. To do so, simply connect two 3-12 VDC battery leads to the power connection terminals on the DC node. Once you are satisfied with the placement and performance of your nodes after testing, you can move forward with permanent wiring.
Testing your installation
To test your installation, the following items may be helpful. 1. Make sure that all wireless connectivity and power metrics are reporting as fully functional in the diagnostics page of the user interface. 2. Make sure that you have correctly placed the nodes on your floor plan. The node number must correspond to the location that it is placed on the floor plan. 3. Make sure that your system is detecting and tracking the movement adequately. 4. Make sure that motion on the outside of the perimeter will not cause false triggers. 5. Make sure that no links (the area between nodes) cross through the outside of the perimeter.
Important note about perimeter sensitivity
It is important to test motion on the outside of the perimeter for false triggering. When the area is enclosed by heavy walls like brick, masonry, thick wood or concrete, outer perimeter motion will not be a problem. In open or thin-walled areas like drywall or thin wood, motion close to the perimeter of the detection area may cause false triggering. If this occurs, reduce sensitivity, move nodes further inside the perimeter, or restrict access to the area just outside the perimeter by a few meters.