Overview
5
NXR-ZGW-PRO NetLinx ZigBee Pro Gateway & NXR-ZRP-PRO NetLinx ZigBee Pro Repeater
A
device
will always connect to a repeater or gateway based on the least depth of the connection, and then the
best quality. For instance, given a choice between connecting to a repeater with two hops to a gateway or
directly to a gateway, a device will always connect first to the gateway, even if the repeater has a slightly better
connection. Devices cannot have children. The use of the NXR-ZGW-PRO and NXR-ZRP-PRO allow
ZigBee-type devices to roam seamlessly from repeater to repeater within the same Extended PAN ID.
Because of power saver options and other features, mobile devices tend to go into Standby mode frequently
and thus enter and leave the network regularly. While sleeping, the device may be in a new physical location or
the network may have changed channels. The device will seamlessly search for a new parent while sleeping
and scan channels upon awakening.
Security
The NXR-ZGW-PRO device provides two levels of security using AES. Besides offering encryption with all
communication, AES encryption is always on. In addition, the gateway allows the use of 16-digit pre-shared
user-defined keys between devices in a Personal Area Network. For more information, please refer to the
Setting Security Options
on page 23.
The NXR-ZGW-PRO ICSP security protocols allow one to use ICSP for authentication and encryption of
Ethernet communication with the Master.
Personal Area Network - Limitations
Within each Personal Area Network (PAN), a particular gateway can have up to 8 remote devices directly
accessing it. Each PAN may have limitations to the number of devices connected to a gateway, depending upon
local conditions. For more information, please refer to the
How ZigBee works
on page 4.
Mesh Network Arrangements
The following installations depend upon the criteria for the network. A small installation would perhaps only
need one NXR-ZGW-PRO to handle the devices in its network, while a larger installation might require a
NXR-ZGW-PRO and several NXR-ZRP-PROs to offer sufficient coverage.
Single Gateway Installations
After you have installed the NXR-ZGW-PRO, you should consider the arrangement of devices. The following
is an example where only one NXR-ZGW-PRO is in the installation. This means that the installer has only one
Extended PAN ID with which to contend.
For more information on ZigBee network communication with other AMX products,
refer to the "Getting the Most From Your Mio Modero R-4" chapter in the
Mio Modero
R-4 remote
user manual or the
ZigBee Tips Installation Guide
, available at
www.amx.com.
The IP configuration for the NXR-ZGW-PRO defaults to DHCP, but may be set to
Static in the Browser-Based Configuration Manager Pages (for more information,
please refer to the NXR-ZGW-PRO Configuration Pages
on page 17
). The default IP
address is 169.254.1.2, but if that address is in use by another device on the network,
the gateway will jump to a random address.
When adding a ZigBee network to a NetLinx master, an Ethernet switch or hub must
be added to the master for proper function of the ZigBee network.
