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INTRODUCTION
This document provides the information needed to setup and implement a wireless Digital Light Management (DLM) network, using
an LMBR-600 Border Router and LMBC-600 Wireless Bridge. These devices can be used with wired DLM rooms, including all DLM
devices, such as room controllers, occupancy sensors, switches, etc. As wireless DLM room devices become available, they can also
be used simultaneously with wired devices. Once configured, an LMBC-600 will function identically to an LMBC-300 wired bridge, and
an LMBR-600 will function identically to an NB-Router for DLM system Segment Networks.
PREREQUISITES
• If using LMCS-100 software, version 4.6.2 or later is required
• To use the configuration application within LMCS, you will need to install the security certificates on the PC. This process is
automated within LMCS and is documented in the section on establishing communication with the LMBR-600 using LMCS.
• If the system includes an LMSM-3E or LMSM-6 Segment Manager, it should have version 2.3 or later
• If you access the configuration application through a web browser instead of through LMCS, you will need to know the IP address of
the router. By default, the LMBR is set to DHCP, so you will need a software tool to discover the IP address. However, you can also
set the LMBR to a static IP address via a series of button presses. Both of these methods are described in detail in the sections on
establishing communication with the LMBR-600 using DHCP and Static IP.
WIRELESS DLM SYSTEM BASICS
A typical wireless DLM wireless network setup will include one or more LMBR-600 routers, multiple LMBC-600 bridges, various wired or
wireless DLM devices, an LMSM-3E or LMSM-6E Segment Manager, and an LMNC cabinet with RACCESS components including: a
wireless modem, one or more network switches, power supply, and a RACCESS Antenna.
Wireless Communication Via a Personal Area Network (PAN)
All wireless devices in the DLM network communicate over a 6LoWPAN 802.15 2.4 ghz wireless network. 6LoWPAN stands for IPv6
over Low-Power Wireless Personal Area Network. 6LoWPAN offers a number advantages including:
• Wireless mesh network based on open standards and protocols
• Reliability, long range connectivity, and low latency
• Low Power, which means wireless devices that use batteries will have a long life
• Can support extremely high levels of security
• Flexibility with 3rd party and Cloud platforms
The LMBR-600 manages the bridges that are connected to the 6LoWPAN network, making them accessible to the larger building
lighting system network. A bridge will communicate only with a single router, while the router can communicate with up to 50 bridges.
The router and bridges communicate using a PAN, which consists of the channel for the radio frequency, unique ID numbers, and
network specific port numbers. These values are stored together in a PAN Profile.
In a single router set-up, the purpose of configuring the wireless network with the browser based configuration application is to change
the PAN Profile from the default values to a unique profile. This provides security, and prevents any situations in which another closely
located wireless DLM network could cause conflicts.
In a multi-router set up, the purpose is to create individual PANs that are made up of geographically proximate LMBCs and one LMBR.
In turn, several LMBRs or PANs are then joined to create a system. Each router must have a unique profile. Setting a bridge to that
profile will determine which router they are connecting to.
The PAN Profile consists of the following PAN and BACnet parameters:
• Channel – The 6LoWPan channel that the router and bridges use for communication. The channel is the specific frequency the
entire PAN uses within the 2.4 ghz range of available channel frequencies.
• PAN ID – A number unique to each network that defines which LMBCs connect to which LMBRs.
NOTE: It is the combination of Channel and PAN ID that must be unique for each PAN Profile. Therefore, it is possible to have
two profiles using the same PAN ID if they are communicating over different channels, and vice versa. However, as a best
practice Wattstopper recommends that every profile have a unique PAN ID.
• Device ID – This number must be unique for each individual device in a BACnet network. This is the unique instance number of
the LMBR—although configured as part of the profile, the number shown for the profile will apply only to the router. All bridges have
a predetermined Instance, based on their Mac address.
• IPv4 Network # – BACnet number for IPv4 communication. The default value is 2 but can be changed. However, all LMBRs and all
profiles in the installation must use the same number if there is a single Segment Manager or the Segment Manager is not used. If
there is more than one Segment Manager, each one will have its own BACnet number. All profiles assigned to routers and bridges
must use the same number that has been configured on the Segment Manager.
• IPv4 UDP Port – The IP Network Port used for communication with other external BACnet software/devices, including LMCS, as well as for
connections with other Segment Managers and NB Switches and Routers. As with the IPv4 number, this number should be the same in all
profiles if there is a single Segment manager or no Segment Manager. But if there is more than one Segment Manager, each one will have
its own UDP port number and the profiles should use the number that is pre-configured for that Segment Manager.
• IPv6 Network # – BACnet number for IPv6 communication. Each Pan Profile (and therefore each LMBR) must use a unique number.
Even with a simple network consisting of only one router and a few bridges, you need to change the PAN Profile so it is not
on the default. This provides security, since no one else can communicate with it unless they know the profile values. It also
prevents other bridges that are installed after the existing network, for example in another unrelated suite in a building, from
inadvertently joining the existing network.