About this Manual.......................................................................................................................................11
Chapter 1: Understanding the NS50 Wireless Network Switch...........13
Chapter 2: Network System Design.........................................................21
Mine Site Technologies Pty Ltd accepts no responsibility for any errors or omissions contained in this
manual.
February 2012User Manual for NS50 hardware and firmware
NS50 User Manual7Revision A
Contact Information
AUSTRALIA
Sydney
25-27 Whiting Street
Artarmon NSW 2064 AUSTRALIA
Tel: +61 2 9437 4399
CANADA
Sudbury
1085 Kelly Lake Road
Sudbury Ontario P3E 5P5 CANADA
Tel: +1 705-675 7468
CHINA
Hangzhou
4th Floor, Building 1
No. 5 Xianghong Road
Hangzhou CHINA 310011
Tel: +86 571 85803320x206
UNITED STATES
Denver
13301 W 43rd Drive
Golden Colorado 80403 USA
Tel: +1 303-951 0570
NS50 User Manual9Revision A
About this Manual
This manual describes features and functions of the NS50 W ireless Network Switch. It provides information
about hardware, installation, configuration and how to troubleshoot any issues. You will find it easier to
use the manual if you are familiar with networking systems and have an understanding of electronics in
a network environment.
Conventions used in the manual
This publication uses the following conventions to highlight and convey information:
•Text that requires input from an operator is boldfaced.
•Operator interface screen control names are boldfaced.
•Keyboard input keys are CAPITALISED.
Icons
Icons are used in the manual to highlight specific information as shown the table below.
DescriptionIcon
Note:
Important:
Caution:
Related Publications
ImPact Wireless Network Switch User Manual
Additional Support
For additional support please visit our website www.minesite.com.au.
The Note icon indicates important information or references to the
user.
The Important icon contains information to prevent damage to the
product and injury to the user.
The Caution icon indicates to stop and pay attention or an action not
to be performed.
NS50 User Manual11Revision A
Chapter
1
Understanding the NS50 Wireless Network Switch
Topics:
•Hardware Overview
•System Layout
•Connectivity
This chapter presents the features and functions of the ImPact NS50
Wireless Network Switch and shows how it is integrated within a
network.
Mine Site Technologies' ImPact NS50 consists of a managed fibre
optic Ethernet switch and two 802.11b/g wireless access points. It
provides wired and wireless network access for mining en vironments
that do not require Intrinsically Safe equipment. The NS50 forms a
network infrastructure where voice, tracking, video and process control
applications can be used to enhance mining safety and communications.
The NS50 has the following features:
•Up to four fibre optic Gigabit Ethernet ports
•Four 10/100 Ethernet ports with Power ov er Ethernet (PoE) supply
capability
•AeroScout® tag reading capability, allowing real time tracking of
assets and personnel
•Composite cabling system incorporating fibre optic data and DC
power
•Low power design, with a wide input voltage from 10-50VDC
•Simple Network Management Protocol (SNMP) support for remote
monitoring
•Wireless Distribution System (WDS) for wireless VLAN trunking
with other ImPact network devices.
For detailed specifications on the NS50, see ImPact NS50
Specifications on page 121.
NS50 User Manual13Revision A
Understanding the NS50 Wireless Network Switch
1.1 Hardware Overview
The features and functions of the NS50 are illustrated in Figure 1: NS50 layout and the accompanying
table.
Note: The NS50 has four slightly different models:
•NS5001 - 1 Radio port, 2 Fibre ports
•NS5002 - 2 Radio ports, 2 Fibre ports
•NS5003 - 1 Radio port, 4 Fibre ports
•NS5004 - 2 Radio ports, 4 Fibre ports
This manual is written for the NS5004. If you have one of the other models, there may be slight
differences. Please note that these models have different internal hardware, and it is not possible
to upgrade one model into another.
Figure 1: NS50 layout
Revision A14NS50 User Manual
Understanding the NS50 Wireless Network Switch
FunctionDescriptionKey
1
7
Composite fibre / power cable
port
Power indicator LED3
Status indicator LED4
Fibre port Link / Activity status
LEDs
Connector for data transmission and / or DC power
distribution.
Labelling of the fibre optic ports.Composite fibre port number2
•Green: when power is applied to the NS50.
•Red: when the power drops below 12V.
•Flashing Red: startup in progress.
•Flashing Green: normal operation.
•Solid Red: indicates an error.
•Off: indicates a problem (Refer to the Troubleshooting
Guide on page 103).
RP-TNC jack for connecting an antenna to Radio 2.MAIN antenna port for Radio 25
RP-TNC jack for connecting an antenna to Radio 2.AUX antenna port for Radio 26
•The top LED (green) flashes when data is transmitted
or received, and is solid when a link is established.
•The lower LED (orange) is active when the link is
running at 1Gbps.
10
15
External Ethernet ports9
External Ethernet port (9) Link /
Activity status LEDs
Ethernet port protective cover13
Radio Link / Activity status LED14
cover
Labelling of the Ethernet ports.External Ethernet port number8
External Ethernet with IEEE 802.3af PoE supply capability
for powering WAPs and other network devices.
•The top LED (green) flashes when data is transmitted
or received and is solid when a link is established.
•The lower LED (orange) indicates that PoE power is
being supplied.
RP-TNC jack for connecting an antenna to Radio 1.MAIN antenna port for Radio 111
RP-TNC jack for connecting an antenna to Radio 1.AUX antenna port for Radio 112
A protective cover for the Ethernet port when it is not in
use.
•The top LED (green) flashes when data is transmitted
or received and is solid when a link is established.
•The lower LED (orange) flashes when a Wi-Fi tag is
detected by the radio card.
A protective cov er for the antenna port when it is not in use.RP-TNC antenna jack protective
Reset button16
Reset button for the unit. It will cause power to cycle
without losing the device configuration.
NS50 User Manual15Revision A
Understanding the NS50 Wireless Network Switch
FunctionDescriptionKey
Button to reset Radio 1's configuration back to factory
defaults. Refer to Manual Reset and Reboot on page 43 for
details.
Button to reset Radio 2's configuration back to factory
defaults. Refer to Manual Reset and Reboot on page 43 for
details.
Holes for mounting the NS50.Mounting holes19
Protective arm to lock fibre port covers and cable
connectors.
Thumbscrew for locking the fibre port retention arm.Thumbscrew21
A protective cover for the composite fibre port when it is
not in use.
20
Default button for CPU 117
Default button for CPU 218
Composite fibre port retention
arm
Composite fibre port cover22
1.2 System Layout
NS50 units are installed in a mine to form a wired and wireless network. This section describes a simple
NS50 system layout in a mine as shown in Figure 2: NS50 system layout.
The first NS50 in a network is connected to an Ethernet switch and power supply via a JB11 junction
box. (See Connecting power to the NS50 on page 34).
Units are typically connected in series down the mine tunnel by composite cable. When the mine tunnel
splits into different sections, an additional NS50 is branched from the network. NS50 or Wireless Access
Point (WAP) devices can also be positioned in Wi-Fi ‘hot spots’ such as crib areas and refuge bays.
A PC or mobile device can connect to the network when in proximity of an NS50 or WAP.
Figure 2: NS50 system layout
Revision A16NS50 User Manual
Understanding the NS50 Wireless Network Switch
1.3 Connectivity
The NS50 has three types of network connections:
•Composite Fibre Ports
•Ethernet Ports
•Wireless
1.3.1 Composite Fibre Ports
Each side of an NS50 unit has two composite fibre port connectors with a crush protection cover. Each
connector consists of two electrical contacts and a duplex LC single mode optic fibre (SMOF) receptacle
as shown in Figure 3: Composite fibre ports.
Note: A protective cov er or a mating cable connector must be attached to unused ports to maintain
the IP65 (Ingress Protection) rating of the unit.
Figure 3: Composite fibre ports
Each port can be connected in one of the following ways:
DescriptionPort connection
DC power only connection
Fibre only connection
Fibre and DC power
connection
Fibre optic cabling provides numerous benefits over Ethernet cabling, with superior signal integrity and
no signal interference from high powered electronics. It also enables units to be spaced over longer
distances without the distance limitation of Ethernet cabling.
By default, port 1 is configured as the upstream port and ports 2, 3 and 4 as the downstream ports. The
difference between upstream and downstream ports is the orientation of the fibre that is used for transmitting
A DC power cable to connect the PSU to the electrical contacts on an
NS50. By convention, this cable is connected to port 4.
A fibre optic cable terminated to the fibre contacts of the NS50 composite
connector.
A composite cable providing fibre optic connectivity and power to the
NS50.
NS50 User Manual17Revision A
Understanding the NS50 Wireless Network Switch
data and the fibre used for receiving data. This is illustrated in Figure 4: Fibre orientation of Upstream
and Downstream ports.
Figure 4: Fibre orientation of Upstream and Downstream ports
Due to the difference in the fibre orientation, MST composite cable and fibre optic cable can only be
connected between ports on NS50 devices marked with a tick in the matrix below.
Port 4Port 3Port 2Port 1
Port 1
Port 2
Port 3
Port 4
Single- and Multi-Mode Cables
The NS50 is supplied from the factory with 1000BASE-LX single-mode SFP modules. Customers wishing
to interface to other cable standards, e.g. 100BASE-FX single or multi-mode, should contact MST to
arrange replacement of the appropriate SFP modules.
•If replacing the single-mode SFP modules with multi-mode modules, the single-mode patch
lead between the SFP module and the MST Composite Cable connector on the inside of the
housing needs to be replaced with a multi-mode patch lead.
•JB11 junction boxes can be connected inline between any two units in the chain to supply po wer.
There is no need to isolate NS50 units to a single power source.
1.3.2 Ethernet Ports
The NS50 has four external Ethernet ports, that enable connection to other networking devices.
The four Ethernet ports also provide IEEE 802.3af PoE (Power over Ethernet) injector functionality,
allowing a single cable to be used for data and power to network de vices. Each Ethernet port's functionality
can be configured by the web browser interface, or by centralised configuration management. For more
information on configuring Ethernet ports, see Configuring the VLAN Port Map on page 67.
Revision A18NS50 User Manual
Understanding the NS50 Wireless Network Switch
1.3.3 Wireless Access
Wireless connectivity in each NS50 is implemented using a WAC (Wireless Access Card), consisting of
a wireless network processor and an integrated mini PCI 802.11b/g adapter.
A NS50 can contain up to two WACs. The WAC contained in the first radio card slot (on the left side)
also acts as the management CPU for the switch processor. As such, it is mandatory that this WAC is
fitted to each unit. The WAC operational parameters can be configured through the web bro wser interface
or by centralised configuration management. For more information, see Configuring Wireless Radio on
page 54 and Editing Site Configuration Files on page 89.
NS50 User Manual19Revision A
Chapter
2
Network System Design
Topics:
•Installation Types and Coverage
•Power Requirements
•Choosing Antennas
•Placement of NS50 Units
•Placement of Antennas
•Determining Distances between
Wireless Network Switches
This chapter describes network system design for underground mines.
A MST System Engineer will usually design and preconfigure a
network based on the requirements and layout of each mine site. This
will involv e a visual inspection of the mine site to identify user areas,
and determine access point locations. A RF (Radio Frequency) site
survey is also conducted to understand the behaviour of radio waves
in the mine. The following factors help determine network design:
•Wireless coverage requirements of the mine
•Quantity and type of wireless client devices connected to the
network
•Wired client devices connected to the network and their location
•Interconnection to the mine's existing corporate network
•Policies for network protocol between networks
•Cabling requirements
•Antenna types to use with each unit and mounting method for each
antenna
•Mounting location and installation method for each network device.
NS50 User Manual21Revision A
Network System Design
2.1 Installation Types and Coverage
Wireless network coverage can be described as:
•Wi-Fi hotspot — Network coverage is provided in key areas, such as crib areas and refuge bays.
•Full coverage — Seamless wireless coverage by strate gically placing NS50 units so their radio fields
overlap.
A NS50 can communicate at wireless distances of 150-300 metres, depending on the geometry and geology
of the mine.
2.2 Power Requirements
The power requirements for a network are unique to each site installation. Determining power requirements
can be complex and is dependent on various factors such as the number of NS50 units, PoE devices,
branches in the network and composite cable lengths.
Note: A site inspection conducted by a MST System Engineer will help determine the power
requirements for your network.
The NS50 is designed to operate at a wide voltage range, from a minimum of 8VDC up to 54VDC. Each
NS50 in a network can internally step up the incoming voltage to 48VDC in order to supply power to its
connected PoE devices. The NS50 needs to receive a minimum input of 15VDC to power PoE devices.
48VDC power supplies are used for large networks to maximise the distance between power supplies.
For smaller networks of 1-2 nodes, it is recommended that a lower v oltage 24VDC po wer supply is used.
2.3 Choosing Antennas
Antennas are connected to each NS50 to provide wireless network coverage. The type of wireless coverage,
surrounding geology, tunnel topology and stratum type are factors that will determine the choice of
antenna. A minimum of one antenna is required per WAC in a NS50.
Antennas consist of two directional patterns:
•Omnidirectional antennas — radiate equally in all directions for a short range, providing immediate
coverage in an open area.
•Directional antennas — radiate in a specific direction over a longer range. A higher gain antenna
will have a longer range and is more directional. It is important that directional antennas are aligned
properly between NS50 units to ensure continuous coverage between units.
The antenna radiation pattern and polarisation need to be considered to provide suitable wireless coverage
in an area.
Antennas commonly used with the NS50 are shown below.
Revision A22NS50 User Manual
Network System Design
DescriptionIllustrationAntenna Type
Omnidirectional
5.5dbi rubber
whips
Panel antenna
Diversity panel
antenna
Yagi directional
antenna
A lower gain antenna that radiates equally in all
directions. It provides direct coverage in an open area.
A panel antenna is a directional antenna, with a wide
horizontal beamwidth and narrower vertical
beamwidth. They are suited for cov ering an open area
in one direction.
A diversity panel antenna contains two panel antennas
in one housing with a 90° rotation between them. It
is used for providing better signal reception in
difficult areas, and more accurate AeroScout® tag
location when Wi-Fi tracking is implemented.
Diversity antennas use both antenna connections on
a WAC.
A Yagi antenna is high gain directional antenna. They
are ideally suited for line of sight tunnel
communications. Yagi antennas need to be aimed
accurately and avoid obstacles in their RF beam path.
2.4 Placement of NS50 Units
A site inspection will determine the best positioning of cables, NS50 units and antennas prior to installation.
NS50 units with antennas directly attached should be mounted in an elevated position, within line-of-sight
of mobile devices. Ideally this would be situated high up on a tunnel ceiling or on the rock wall face. The
mounting location should be free from debris, and avoid obstruction to vehicles, equipment/machinery,
vent tubing and cables.
NS50 units should not be installed in cut-out areas such as safety bays and remuck bays, due to signal
confinement. In such instances, a WAP is more suitable, connected to the nearest NS50. For details on
common NS50 mounting scenarios, see NS50 Mounting Options on page 28.
2.5 Placement of Antennas
Antennas are usually mounted separately from each NS50 to optimise transmission and avoid any
obstructions in a tunnel. They are connected by coaxial cable. The coaxial connection should be kept as
short as possible to minimise signal attenuation. Larger antennas / longer cable feeds can require line
amplifiers, and possibly bi-directional splitter / combiners for dual antenna systems.
Antenna placement is dependent on the surrounding geology, tunnel topology and stratum type. The
recommended placement of antennas is as follows:
Tip 1: Directionality
Antennas should be mounted and angled to give optimum transmission along curves and dips as shown
below in Figure 5: Angling antennas on page 24.
NS50 User Manual23Revision A
Network System Design
Figure 5: Angling antennas
Tip 2: Obstructions
Antennas should be mounted to avoid signal obstruction from rock, vehicles, equipment and machinery
as shown in Figure 6: Antenna mounting to avoid obstructions on page 24.
Figure 6: Antenna mounting to avoid obstructions
Tip 3: RF Field Overlap
Multiple antennas should be mounted to avoid crossing signal paths as shown in Figure 7: Antenna
directivity on page 24.
Figure 7: Antenna directivity
The positioning of the antennas is crucial when AeroScout® tags are used for asset tracking and location
services. AeroScout® tags will not be read when there are antenna standing wave nulls. Antennas need
to be positioned to have best reception of tag messages.
For Antenna mounting options, see Antenna Mounting Options on page 28.
Revision A24NS50 User Manual
Network System Design
2.6 Determining Distances between Wireless Network Switches
Line of Sight Distances
In line of sight, each NS50 has a maximum wireless range of 300 metres (984 feet) using high gain
directional antennas. NS50 units are generally installed with a 100 metre (328 feet) overlap of the radio
field as shown in Figure 8: Wireless channel layout and distances. This ensures sufficient coverage
between NS50 units.
NS50 units within range of each other must be configured with different W i-Fi channels. By default e very
fifth channel is used (channels 1, 6 and 11) to prevent signal overlap, minimising the possibility of
inter-modulation or interference.
Figure 8:Wireless channel layout and distances
Distances Around Curves
The wireless range of a NS50 decreases when going around curves. In this case, NS50 units need to be
installed closer together to provide sufficient coverage. Distances between NS50 units will v ary depending
on the drift and tightness of the curve. They are installed closer together on a tight curve.
Use the following steps to estimate the distance between NS50 units:
1. Install one NS50 unit at the beginning of the curve.
2. Install the second NS50 unit between 20 metres (65 feet) to 40 metres (130 feet) from the end of the
curve.
3. Install and align antennas.
4. Perform a RF signal strength test by walking from the first NS50 to the second NS50.
5. If the strength test records levels of:
•-80dBm to -65dBm, the NS50 units are spaced for optimal coverage.
•-81dBm to -100dBm, move the second NS50 closer (at 10m intervals), and conduct another RF
signal strength test.
•-64dBm to -10dBm, move the second NS50 further away, and conduct another RF signal strength
test.
NS50 User Manual25Revision A
Chapter
3
Installation
Topics:
•NS50 Mounting Options
•Antenna Mounting Options
•Installation Schemes
•Connecting power to the NS50
•Handling Composite Cable
During Installation
•Connecting Composite Cable to
the NS50
•Standard Composite and Fibre
Cable Lengths
•Connecting Ethernet Cable to
the NS50
•Connecting F-LINK Terminated
Composite Cable to the NS50
•Connecting Antennas to the
NS50
•Manual Reset and Reboot
This chapter describes mounting options, installation schemes, and
antenna and cable connections. Fibre connector assembly and cable
termination are beyond the scope of this manual.
Important: The electronic components in each NS50 have been
designed to be isolated from the enclosure and local electrical
earth. This ensures there is no current passing between grounds
of different potentials (known as galvanic isolation). Galvanic
isolation must always be maintained, with the NS50 ground
terminals isolated from electrical earth, and all antenna and
antenna cable connections properly insulated.
NS50 User Manual27Revision A
Installation
3.1 NS50 Mounting Options
Standard mounting options for the NS50 are described in the table below.
InstallationApplication
Mounting the NS50 to a rock bolt
Mounting the NS50 to the mesh
The NS50 has two 25mm holes to mount to a rock bolt
in the mine's rock face. It is secured to the rock bolt with
a 25mm nut.
The four corner mounting points on a mounting plate can
be cable-tied to the mesh in a mine tunnel.
3.2 Antenna Mounting Options
Antenna mounting is dependent on the location and coverage required. Examples of antenna installation
options are described and illustrated in the table below.
PictureDescriptionMounting Option
Mounting a Yagi
antenna or panel
antenna to the mine
tunnel roof.
1. The Yagi antenna is attached to
the mounting pole using
U-clamps and nuts.
2. A threaded metal bar is screwed
into the mounting pole.
3. A hole is drilled into the tunnel
roof and the mounting pole is
secured using chemset
adhesive.
Mounting a Yagi
antenna or panel
antenna in a stope
or tunnel entrance.
1. The Yagi antenna or panel
antenna is attached to the
mounting pole using U-clamps
and nuts.
2. The mounting pole is bolted to
a metal bracket.
3. The metal bracket is bolted to
a mine tunnel entrance or roof
using three M12 Dynabolts.
This mounting method enables
angling of the antenna into a
mine tunnel or stope.
Revision A28NS50 User Manual
Installation
PictureDescriptionMounting Option
Mounting a panel
antenna on the
rockface.
The panel antenna is cable tied the
mesh.
3.3 Installation Schemes
The installation and placement of antennas and NS50 units will depend on the wireless coverage type,
rock type and tunnel topology. A few examples of installation schemes in a mine are described and
illustrated in the following sections.
3.3.1 Installation in a Straight Drive
An example of a straight drive installation scheme is sho wn in Figur e 9: Installation sc heme in a straight
drive on page 30.
•Two Yagi antennas are clamped to a mounting pole, which is chemically adhered into the mine roof.
•The antennas are positioned in opposite directions to provide long range wireless coverage.
•Each antenna is connected to a separate WAC in the NS50, or a Wi-Fi signal splitter can be used to
split the signal from one WAC in two directions.
•The network switch is cable tied to the rock mesh and connected to the composite cable that provides
power and network connectivity.
NS50 User Manual29Revision A
Installation
Figure 9: Installation scheme in a straight drive
3.3.2 Installation in a Curved Decline / Incline
A curved decline / incline installation scheme is shown in Figure 10: Installation scheme in a curved
decline / incline.
•A Yagi antenna is positioned at the end of the curve for directional wireless coverage.
•The Yagi antenna is clamped to a mounting pole, and is chemically adhered into the mine roof.
•A panel antenna is roof mounted in the middle of the curve providing wide wireless coverage.
•Each antenna is connected to a WAC in the NS50.
•The network switch is cable tied to the rock mesh, connected to the composite cable that provides
power and network connectivity.
•The network switch is also a link for power and network connectivity to devices in the next location.
Revision A30NS50 User Manual
Installation
Figure 10: Installation scheme in a curved decline / incline
3.3.3 Installation in a Stope
An installation scheme for a stope is shown in Figure 11: Installation scheme in a stope.
•A panel antenna is clamped to a mounting pole, and is chemically adhered into the mine roof.
•The panel antenna is angled down into the stope to provide wide wireless coverage.
•A Yagi antenna is installed in the roof providing directional coverage down a straight drive.
NS50 User Manual31Revision A
Installation
•Each antenna is connected to a WAC in the NS50. The network switch on a mounting plate is attached
to a rock bolt.
•The composite cable supplies power and network connectivity to the switch.
Figure 11: Installation scheme in a stope
3.3.4 Installation at an Intersection
An example installation scheme for an intersection is shown in Figure 12: Installation Scheme at an
intersection.
Revision A32NS50 User Manual
Installation
•A panel antenna is clamped to a mounting pole, and is chemically adhered into the mine roof.
•The panel antenna is angled to provide wide wireless coverage at an intersection.
•A Yagi antenna is installed in the roof providing directional coverage down a straight drive. Each
antenna is connected to a WAC in the NS50.
•The network switch is cable tied to the rock mesh, connected to the composite cable that provides
power and network connectivity.
•The network switch also acts as a link for power and network connectivity to devices in the next
location.
NS50 User Manual33Revision A
Installation
Figure 12: Installation Scheme at an intersection
3.4 Connecting power to the NS50
A pre-deployment power-up test of NS50 units is recommended. To conduct a power-up test:
Revision A34NS50 User Manual
1. Connect the composite fibre/power cable to a DC power source with correct termination. Note that
the DC supply must be between 10 and 50VDC.
2. Turn on the DC power supply and verify that the green power light is on. If there is no green light,
refer to Troubleshooting Guide on page 103.
Power can be applied to cabling whilst additional NS50 units are being installed. Power usage levels
should be evaluated prior to adding more units downstream to ensure that the voltage rail does not drop
too low. A minimum of 15VDC is required for a NS50 to supply PoE to other devices. If the voltage
drops below 15V, additional power is required.
3.5 Handling Composite Cable During Installation
The composite cable is ruggedly built for the mining environment. Howev er the follo wing precautionary
measures should be noted during installation:
•Never pull or create tension on the cable. Unreel the cable from the cable reel, or allow the weight of
the cable to unreel as the vehicle is moving as shown in Figure 13: Handling composite cable.
•Do not bend the cable at sharp angles; excessive bending can fracture or break the fibre optic cable.
•Do not step on the cable.
Installation
Figure 13: Handling composite cable
3.6 Connecting Composite Cable to the NS50
A composite cable is connected to the fibre port of an NS50. Once connected, it will auto detect devices
and their settings.
The following procedure illustrates composite cable connection when there is power being supplied
downstream in the network.
Important: Protect all connectors and sockets from dust and grit, with minimal exposure during
installation. Any unused sockets must be covered by the supplied dust caps at all times.
NS50 User Manual35Revision A
Installation
IllustrationProcedureStep
1
2
Loosen the thumbscrew on the
retention arm.
Slide out the retention arm from the
NS50.
3
4
Push down on the locking catch for
the port and remove the cover.
Align the pins on the connector to
the composite fibre port.
Revision A36NS50 User Manual
Installation
IllustrationProcedureStep
5
6
Insert the cable into the composite
fibre port, and push the locking
catch to the connector. The power
LED will turn on, and corresponding
fibre port link LED will light up
green. The port activity LED will
flash with network activity.
Slide the retention arm back into the
unit and screw the locking nut tight.
7
Connecting a NS50 to a branch NS50 requires simply connecting composite cables to the additional fibre
ports. The connected fibre ports will cause the corresponding fibre port LEDs to become active. If you
are adding NS50 units to an existing system, please consult your MST System Engineer to ensure power
requirements are being met.
Repeat steps 3 to 5 for connecting
downstream cables from this unit.
Note: If a NS50 is installed
at the other end of the
downstream cable, the fibre
link LED will light up green.
The fibre activity LED will
flash with network activity.
3.7 Standard Composite and Fibre Cable Lengths
While custom cable runs can be made where necessary, it is faster and cheaper to use the following
standard cable lengths supplied by MST:
The external Ethernet ports are located on the underside of the NS50, and are used to connect to Ethernet
devices (such as computers, Ethernet controlled PLCs, hard-wired Ethernet Phones and IP video devices).
An Ethernet cable with a RJ45 connector is used to connect PoE devices. Ethernet cables are required to
meet specifications for use in a mining environment in Ethernet Cable Specifications on page 107.
The following procedure demonstrates how to connect an Ethernet cable to the NS50.
IllustrationProcedureStep
1
Unscrew the protective cover on
the Ethernet port.
Revision A38NS50 User Manual
Installation
IllustrationProcedureStep
2
3
Insert the Ethernet cable (with a
bayonet back-shell) into the
Ethernet port.
Align the protective cover on the
cable to the notch in the mating
jack on the NS50, and twist to
lock the connector.
Important: Check that all
unused Ethernet ports
remain protected with the
supplied covers.
4
Securely fasten the cable lead
against the wall/ceiling.
3.9 Connecting F-LINK Terminated Composite Cable to the NS50
Connecting NS50 units to networks with existing WNS units requires a JB14 Junction Box, supplied by
MST , to act as an adaptor between the existing F-LINK terminated cable and the re vised MST Composite
connector. The JB14 has four 10mm mounting holes and can be bolted to a flat surface or cable-tied to
the mesh in a tunnel.
Note: The composite cable must be connected and locked into place before the JB14 is attached
to a surface.
NS50 User Manual39Revision A
Installation
IllustrationProcedureStep
1
2
Release the catch on the composite
fibre/power cable port and remove
the cover.
Align the pins on the connector to
the composite port.
3
4
Insert the cable into the composite
port, and push the locking catch to
the connector.
Remove the protective cover from
the F-LINK cable port.
Revision A40NS50 User Manual
Installation
IllustrationProcedureStep
5
6
Align the F-LINK connector with
the port.
Insert the connector and spin the
connector cover clockwise to secure
the cable to the port.
7
Attach the JB14 to a flat surface or
tunnel mesh using the mounting
holes.
3.10 Connecting Antennas to the NS50
Antennas can be connected directly to the coaxial (RP-TNC) jacks on the unit or mounted remotely by
using coaxial cables. Coaxial cable length should be kept as short as possible (ideally less than 10m) to
minimise signal loss.
Important: All cable and antenna connections must be electrically insulated using
self-amalgamating rubber tape.
The following procedure describes how to connect a coaxial cable to the NS50 and electrically insulate
the connection.
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Installation
IllustrationProcedureStep
1
2
Remove the dust cap from the
antenna port.
Connect the coaxial cable plug to
the RP-TNC jack on the NS50 and
tighten the outer sleeve.
3
4
Insulate the connection using
self-amalgamating rubber tape.
Start at the base of the connection
and pull back the rubber tape
backing.
Pull the tape tightly, and tape
around the connector at an angle
until it is 25mm past the end of the
connection.
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Installation
IllustrationProcedureStep
5
6
Wind the rubber tape at an angle
back down towards the base of the
connection and cut the tape.
Cable tie and mount the coaxial
cable(s) so it is free from
obstructions.
Important: Check that all
unused antenna ports
remain covered with the
supplied dust caps. Check
there are no obstructions
near the antennas that could
hinder the radiation pattern.
3.11 Manual Reset and Reboot
The NS50 can be manually power cycled or reset to factory default settings as described below.
PictureDescriptionStep
1
Locate and identify the Reset button
and the Factory Default buttons for
CPU 1 and CPU 2.
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Installation
PictureDescriptionStep
2
3
To reset the NS50 (i.e. power cycle),
press and release the Reset button whilst
the unit is powered up.
To reset to factory default settings
whilst the unit is powered up, press and
hold both the Reset and CPU Default
button. Release the Reset button while
continuing to hold the CPU Default
button for another 5 seconds.
Note: This procedure must be
performed on each CPU to reset
it to factory default settings.
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Chapter
4
Understanding VLANs
Topics:
•Understanding Trunk and
Access Ports
•VLANs and Wireless Networks
•Native VLAN
This chapter explains the principles behind a Virtual Local Area
Network (VLAN). It is important to understand VLANs to properly
configure the wireless network switch.
A VLAN is a collection of nodes grouped according to their function
or application, rather than their physical location. They are grouped
in order to separate and prioritise data within a network, as shown in
Figure 14: VLANs. VLANs are created when multiple applications,
such as voice, telemetry, data and video, are required in a mining
network.
Figure 14:VLANs
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Understanding VLANs
4.1 Understanding Trunk and Access Ports
VLANs can be assigned to trunk ports and access ports on a network. These two types of allocation
determine how data is transmitted and relayed.
4.1.1 Trunk Ports
Trunk ports typically provide a connection between network switches, and can carry data for multiple
VLANs. They will only transmit frames (packets of data) that belong to the port's assigned VLANs. To
identify the VLAN of each frame, a network switch adds a tag to the frame (known as 802.1Q trunking).
The tag contains the following information:
•VLAN ID — allows the network switch receiving a frame to identify the VLAN it belongs to.
•Priority ID — allows the network switch to prioritise distribution when multiple frames are being
transmitted. Priority ID ranges from 0-7, where 7 is the highest priority.
When a network switch receives a tagged frame, the tag is read to determine the VLAN it belongs to. The
tag is removed and distributed to devices connected on the same VLAN.
When the network switch receives multiple frames, it will prioritise the distribution of frames based on
the Priority ID in the VLAN ID tag. For more information on configuring VLANs, see Defining VLANs
on page 65.
4.1.2 Access Ports
Access ports connect client devices such as PCs and laptops to the network switch, and can only be
assigned to a single VLAN. Access ports can only send and receive untagged frames, with those frames
allocated to the relevant VLAN inside the switch. Any tagged frames sent to an access port will be dropped.
An example of VLAN traffic flow through trunk and access ports is shown in Figure 15: VLAN traffic
flow and described below.
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Figure 15:VLAN traffic flow
1. A PC sends an untagged frame into access port 6 (Control VLAN) on wireless network switch 1. The
frame is sent to other access ports on the Control VLAN (access port 5).
2. Wireless network switch 1 tags the frame with VLAN ID = 4 and Priority = 5 and sends it through the
trunk ports to Wireless network switch 2.
3. Wireless network switch 2 recei ves the tagged frame, and identifies the frame belonging to the Control
VLAN.
4. Wireless network switch 2 removes the tag and sends the frame to all ports on the Control VLAN
(access ports 5 and 7).
5. If Wireless network switch 1 receives multiple frames, they are tagged and sent via trunk ports to
Wireless network switch 2.
6. Wireless network switch 2 receives the frames and prioritises distribution.
4.1.3 Port Allocation
Physical ports on the NS50 can be configured to be either a trunk port or access port using the web browser
interface or editing site configuration files when T rivial File T ransfer Protocol (TFTP) is used. The NS50
default configuration has ports 1-8 allocated as trunk ports . Ports 1-4 are usually connected to other NS50
units, and ports 5-8 are connected to WAPs or other PoE devices. For more information on configuring
ports and VLAN membership, see Configuring the VLAN Port Map on page 67.
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4.2 VLANs and Wireless Networks
The wireless network switch can have up to four wireless Service Set Identifiers (SSIDs) per WAC. Each
SSID is associated with a single VLAN and functions as an access port on that VLAN. An example of a
wireless network is shown in F igur e 16: An example of VLAN and wir eless networks and described below .
Figure 16: An example of VLAN and wireless networks
1. An untagged frame is sent from a Laptop 1 through a wireless network (SSID = Data) on the network
switch.
2. The frame is tagged by the network switch and is sent through the trunk port to the WAP.
3. The WAP identifies the tagged frame as belonging to the Data VLAN and removes the tag.
4. The untagged frame is sent via the wireless network (SSID = Data) to Laptop 2.
4.3 Native VLAN
Trunk ports on the wireless network switch also support a Native VLAN. The Native VLAN is where
untagged frames will be allocated. On the network switch, the native VLAN is always the Infrastructure
VLAN. This allows client de vices such as PCs or laptops to access and manage the network switch when
they are connected via a trunk port.
The Infrastructure VLAN is mandatory in the network switch and cannot be deleted.
An example of native VLAN functionality is illustrated in Figure 17: An example of native VLAN and
described below.
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Figure 17: An example of native VLAN
1. The PC sends an untagged frame to Trunk port 3 on wireless network switch 1.
2. The frame is allocated to the Infrastructure VLAN.
3. The management CPU of wireless network switch 1 is always an Access port on the Infrastructure
VLAN and will receive the frame.
4. The untagged frame would also go to wireless network switch 2 via the Trunk ports between the
network switch units.
5. Wireless network switch 2 allocates the untagged frame to the Infrastructure VLAN.
6. The management CPU of wireless network switch 2 is always an Access port on the Infrastructure
VLAN and will receive the frame.
7. Any frame leaving the Management CPU is placed on the Infrastructure VLAN.
8. All frames on the Infrastructure VLAN are sent out untagged on Trunk ports.
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Chapter
5
Configuration Using the Web Interface
Topics:
•Logging onto the Web Browser
Interface
•Configuration screen
•Basic Tab
•Advanced Tab
•Tools Tab
•Status Tab
This chapter describes how to configure an ImPact network device
using a web browser. Please note that screenshots may vary slightly
from those shown, depending on your current firmware version.
The ImPact NS50 and WAP have a built-in web-server that is
accessible by a PC to configure settings. A PC can access the web
browser interface by making a TCP/IP connection to the device. For
more information, see Connecting a PC to an ImP act Network Device
on page 115.
The IP address of the network device can be located and configured
using the Ubidevman device disco v ery tool. F or more information on
how to use Ubidevman, see Discovering Devices on the Network on
page 109.
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5.1 Logging onto the Web Browser Interface
The web browser interface has a login front screen with access at two levels:
•ADMIN — Allows settings to be viewed and modified. The default password is ‘admin’.
•USER — Allows settings to be viewed but not modified. By default there is no password.
Note: Login and configuration needs to be carried out for each WAC fitted to the wireless network
device. Each WAC has a unique MAC address and should be configured with a unique IP address.
To log in to the web browser interface:
1. Launch your web browser and enter http://<WAC IP address> in the address field. The factory
default IP address is http://192.168.1.90 and http://192.168.1.91 for the first and second WAC
respectively.
2. The login screen is displayed.
3. In the LOGIN dialog box, select Admin from the User Name drop-down box, and type the password
in the Password field. The factory default password is admin.
4. Click Log In. The configuration home screen is displayed.
5.2 Configuration screen
After logging on, the BASIC tab > WIRELESS RADIO screen is displayed by default as shown in
Figure 18: Default configuration screen.
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Figure 18: Default configuration screen
The configuration screens are divided into five section tabs across the top:
•BASIC — Web screens to configure device IP settings, wireless radio settings, wireless network
definitions, tracking configuration and switch settings.
•ADVANCED — Web screens to configure MAC address filters, advanced wireless parameters,
VLANs and WDS.
•TOOLS — Web screens to configure password access, saving and restoring device configuration,
firmware upgrades and activation of PoE supply feature.
•STATUS — Displays device information, wireless clients, system logs, network traffic statistics and
the most recent AeroScout tag reads.
•HELP — Online help.
5.3 Basic Tab
The Basic tab is used to configure device IP, wireless radio, wireless network, tracking and switch settings
of the ImPact network device.
5.3.1 Setting Up the LAN
The LAN configuration screen is shown in Figure 19: LAN configuration screen.
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Figure 19: LAN configuration screen
T o edit LAN settings, click in the selected field in the dialog box. LAN settings are described in the table
below.
Recommended SettingsDescriptionField
The default IP address is 192.168.1.90. A
different IP address is required for each
WAC in a network.
The default subnet mask is 255.255.255.0.Identifies the subnet the IP address
Settings are dependent on the site's
network design.
Settings are dependent on the site's DNS
design.
Settings are dependent on the site's DNS
design.
Leave the field blank if you do not wish
to add a domain name.
Subnet Mask
Gateway
Primary DNS
Secondary DNS
Name
The IP address of the WAC.IP Address
belongs to for the WAC.
The IP address of the default gateway
to be used by the WAC.
The DNS server used by the WAC when
looking up host names.
The backup DNS server used by the
radio cards CPU when looking up host
names.
Local domain name for the network.Local Domain
5.3.2 Configuring Wireless Radio
The Wireless Radio configuration screen configures wireless radio settings as shown in Figure 20:
Wireless radio configuration screen on page 55.
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Figure 20:Wireless radio configuration screen
To configure the wireless radio:
1. Select the Enable Wireless Radio check box to enable wireless.
2. To change wireless radio settings, click on the drop-down boxes in the supplied fields. A description
and recommended settings are shown in the table below.
3. Click Save Settings.
Recommended SettingsDescriptionField
Enable Wireless
Radio
Region
Channel
Transmission
Rate
Used to enable or disable the WAC's
radio.
allowed by local regulations
A drop-down box to select the
wireless channel that the WAC will
operate on.
Settings to configure how fast data is
transmitted.
Select the correct region for the site location.Limits available channels to those
It is recommended that WACs in proximity of
each other have different wireless channels (for
example, channels 1, 6 and 11). This minimises
signal overlap and the possibility of
interference.
Leave the default setting as Best (automatic)
for data transmission at the best possible speed.
802.11 Mode
A drop-down box to select the 802.11
mode from mixed 802.11g and
802.11b to 802.11g.
If there are 802.11b wireless client devices,
leave the setting at Mixed. Select 802.11g for
improved performance if all wireless client
devices are 802.11g capable.
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5.3.3 Configuring Wireless Networks
A WAC can have up to four wireless SSIDs with different security settings. Each can be mapped to
different VLANs. The configuration screen is shown in Figure 21: Wireless Networks configuration
screen.
Figure 21:Wireless Networks configuration screen
A description of the wireless network parameters are described in the table below.
Recommended SettingsDescriptionField
Click on the Enable check box to
enable the wireless network.
Click on the Visible option button
to enable wireless network visibility .
Visibility Status
Enables or disables the wireless network.Enable
Enables or disables visibility of the wireless
network to client devices within range.
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Recommended SettingsDescriptionField
Wireless
Network Name
Note: After a unit is reset to factory defaults, it will have a single wireless network on channel 6
with the name "AP------" (the last six digits of the unit's MAC address), WP A2-AES security enabled
and the password "minesite".
Configuring WEP Security Settings
The SSID of the wireless network that is used by
client devices.
Four security modes exist:Security Mode
•None: No wireless authentication is required
and traffic is not encrypted.
•WEP: is the original wireless encryption
standard. This is rarely used.
•WPA Personal: provides a higher level of
security and does not use a centralised
authentication server.
•WPA Enterprise: as per WPA Personal but
a RADIUS authentication server is used.
Enter a network name that relates
closely to its function. For example,
"MST-VOICE".
Selecting the wireless security mode
will display configuration options.
To configure WEP security settings:
1. Click on the WEP option button.
2. In the WEP Key Length drop-down box, select 64bit or 128bit. 128bit is a more secure encryption
type.
3. Enter the password for the WEP Key number that will be used.
4. Select the Default WEP Key from the drop-down box.
5. Select Authentication from the drop-down box. By default it is set to Open, which is more securethan Shared.
Configuring WPA Settings
WPA provides a higher level of security. WPA-Personal and WPA-Enterprise are variants of Wi-Fi
Protected Access (WPA). WPA Enterprise requires an external radius server.
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To configure WPA settings:
1. Select the WPA mode from the drop-down box.
2. Select the Cipher Type from the drop-down box. By default it is set at AES.
3. Enter Group Key Update Interval in the supplied field. By default it is 3600 seconds. This is the
amount of time before the group key (used for broadcast and multicast data encryption) is changed.
4. Enter the Pre-Shared K ey in the supplied field (applicable to WPA Personal security mode). The key
must be at least 8 alphanumeric characters in length.
The Wireless EAP configuration screen is used to configure wireless authentication by a RADIUS server
(as used by WPA Enterprise). The configuration screen is shown in Figur e 22: W ireless EAP configur ation.
Figure 22:Wireless EAP configuration
To configure wireless EAP, click on the drop-down boxes in the supplied fields. Click Save Settings to
save settings. A description of the fields and settings are described in the table below.
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Recommended SettingsDescriptionField
Authentication Timeout
Amount of time in minutes before
a client device is required to
Setting is at 120 minutes by
default.
re-authenticate.
RADIUS server IP Address
This is specific to each site.IP address of the authentication
server.
RADIUS server Port
Port number used by the access
point to connect to the
By default the port number is
1812.
authentication server.
RADIUS server Shared Secret
MAC Address Authentication
Password used by the access point
to access the RADIUS server.
Access to the RADIUS server by
confirmation of the client device's
MAC address.
Password that matches with the
authentication server.
If selected, the user must always
use the same device when
connecting to the wireless
network.
A second RADIUS server can be configured if the primary server is not av ailable or not responding. This
can be configured by clicking on the Advanced button as shown in Figure 23: Second RADIUS server
configuration.
Figure 23: Second RADIUS server configuration
5.3.5 Configuring Asset Tracking and Location Based Services
The T racking configuration screen establishes where AeroScout® tag reports are sent as shown in F igur e
24: Tracking configuration screen. An ImPact network device can communicate with an AeroScout
Positioning Engine and / or a MST Tracker Engine. Configuration of the Access Point is not required
when communicating with an AeroScout® Positioning Engine as the device configuration is performed
via AeroScout® server tools.
If the Access Point is sending tag reports to an MST Tracker Engine, the Tracker Engine's IP address
must be entered into each Access Point.
®
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Figure 24:Tracking configuration screen
There are four sections on the Tracking configuration screen:
Enable
This section turns tracking on or off.
Recommended SettingsDescriptionField
Enable Tracking
for this unit.
RSSI Lower Thresholds
These settings are used to control what location reports are sent to the Positioning Engine. If a Wi-Fi tag
or mobile unit report is received with an RSSI belo w the relevant threshold, it is not sent to the Positioning
Engine (whether it is an AeroScout® Positioning Engine or MST Tracker Engine).
Tracker Engine List
This section is used to configure the MST Tracker Engine(s) that the access point will send information
to. The available settings are listed below. Note that data can be passed to up to 2 MST Tracker Engine
instances.
On or Off.Indicates whether Tracking will be switched on
Recommended SettingsDescriptionField
Enable
Server Port
On or Off.Indicates whether the Track er Engine will be sent
data.
Specific to each site.The IP address of the MST Tracker Engine.Server Address
Default is 1142.The UDP port that the Tracker Engine listens for
messages on.
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Recommended SettingsDescriptionField
Status Reporting
Interval
Advanced Settings
There is a single advanced setting called "Drop non-exciter tag reports". If the check box is enabled, the
Access Point will only send tag reports when the tag is in an AeroScout® Exciter field.
This setting applies to tag reports that are sent to AeroScout® Positioning Engines and MST Tracker
Engines.
Access Point to the Tracker Engine. These status
reports are used by the Tracker Engine to
determine if the Access Point is up or down.
Default is 15 seconds.The period that status reports will be sent from the
5.3.6 Configuring Ethernet Switch Ports
The WAC in slot 1 (located on the left side of the NS50) is used for configuration and management of
the switch processors in the network switch. It enables the ports on the switch and the 48V rail for the
Power over Ethernet (PoE) supply to be configured, as shown in F igure 25: Switch configuration screen.
Figure 25: Switch configuration screen
The Switch ports have the following configuration options:
Name
It is often used to name the device connected to
it. For example, "Level 68 camera".
Recommended SettingsDescriptionField
Naming is specific to each device.Used to provide a convenient name for the port.
On or Off.Enables or disables the port.Enabled
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Recommended SettingsDescriptionField
Speed & Duplex
Enabling 48v Power Over Ethernet
48VDC PoE supply for ports 5-8 can be enabled by selecting the 48VDC Output Enable check box.
Internal 48V Header
Enable
Ports 5 to 8 allow the speed and duplex to be
controlled.
SettingDescriptionField
Controls the NS50's internal 48V
connector.
Enables PoE through ports 5-8.PoE Power Rail Enable
This option is not currently in use,
please leave unticked.
On or Off. Turn on if connecting PoE
powered devices to the NS50
Auto is usually the best setting.
However some devices require
Speed & Duplex to be hard coded
due to poor Auto-negotiation
implementations.
5.4 Advanced Tab
The Advanced tab is used to configure the MAC address filters, advanced wireless parameters, VLANs
and WDS.
5.4.1 Enabling the MAC Address Filter
The MAC Address Filter configuration screen specifies MAC addresses to be allowed or denied access
to the network as shown in Figure 26: MAC address filter configuration screen.
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Figure 26: MAC address filter configuration screen
To enable MAC address filtering:
1. Click on the Enable MAC Address Filter check box.
2. Under Filter Settings, select the Mode from the drop-down box to allow or deny listed machines.
3. Click on check boxes to enable Filter Wireless Clients or Filter Wired Clients.
4. Under Add MAC Address, click on the Enable check box.
5. Enter the MAC address of client device in the MAC Address field.
6. Enter Computer Name in the supplied field and click Save. The MAC address will appear in the
MAC Address List.
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7.
To delete the device from the list, click on the icon.
8.
To edit a device in the list, click on the icon.
9. Click Save Settings.
5.4.2 Fine Tuning Wireless Performance
Wireless radio performance can be adjusted on the Advanced Wireless screen as shown in Figure 27:
Advanced Wireless configuration screen. It is recommended not to modify default settings without
understanding the implications of the changes.
Figure 27: Advanced Wireless configuration screen
Fragmentation
Threshold
RTS threshold
Maximum frame size that can be sent without
fragmentation.
protocol issues to an RTS packet.
Recommended SettingsDescriptionField
Default setting is at the
maximum size of 2346 and
is recommended for most
environments.
Default setting is 2346.Determines what size data packet the low level RF
Default setting is 100ms.The amount of time between beacon transmissions.Beacon Period
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Recommended SettingsDescriptionField
DTIM interval
802.11d enable
Transmit Power
Transmit
Antenna
A DTIM is a countdown informing clients of the next
window for listening to broadcast and multicast
messages. W ireless clients detect the beacons and awaken
on the DTIM interval to receive the broadcast and
multicast messages. Valid settings are between 1 and
255.
Wireless specification where configuration occurs at a
MAC layer le vel to comply with country or district rules.
transmitter.
wireless frames. The options are:
•Main: The MAIN antenna will always be used for
transmission.
•Aux: The AUX antenna will always be used for
transmission.
•Diversity: The radio will determine the best antenna
to use for transmission based on the signal strength
of recently received frames from both antennas.
The recommended DTIM
interval is 1.
802.11d is not enabled by
default.
High.Used to control the power delivered via the wireless
Main.Defines the antenna to be used for transmission of
Receive Antenna
Click on the Save Settings button to save advanced wireless settings.
Note: Ensure that the physical connection of antennas is consistent with the transmit and receive
antenna settings. Failure to do so will give poor Wi-Fi performance and reduced tracking accuracy.
Defines the antenna to be used for the reception of
wireless frames. The options are:
•Main: The MAIN antenna will always be used for
reception.
•Aux: The AUX antenna will always be used for
reception.
•Diversity: Both antennas will always be used for
reception and the received frame with the best signal
strength will be used.
Main: if a single antenna is
fitted.
Diversity: if antennas
are fitted to both of the
radio's ports.
5.4.3 Defining VLANs
VLANs can be defined on the VLAN LIST screen as shown in F igure 28: VLAN list configuration screen.
The VLAN LIST screen displays VLANs and the priorities that will be assigned to each VLAN.
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Figure 28:VLAN list configuration screen
Up to 8 VLANs can be defined with the parameters described in the table below.
DescriptionField
Check box to enable the VLAN.Enable
VLAN ID number that is tagged in frames sent through trunk ports.ID
VLAN name. It should be named to simplify administration.Name
Priority
Note: The first VLAN (Infrastructure VLAN) cannot be disabled because the management CPU
is always on this VLAN.
By default VLANs are pre-defined with recommended IDs and priorities. This is based on commonly
used applications in mines. Once the VLANs are defined, they can be saved by clicking on the SaveSettings button.
After the VLANs have been defined, they can be assigned to the wireless networks and switch ports
(Network Switch only) on the VLAN PORT MAP screen.
Priority ranges from 0-7 (7 being the highest priority) that is assigned to frames
on this VLAN.
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5.4.4 Configuring the VLAN Port Map
The VLAN Port Map screen assigns the VLAN(s) to each physical switch port, and each wireless network.
The screen is shown in Figure 29: VLAN Port Map screen.
Physical switch ports can be assigned as Trunk or Access ports. Wireless networks always act as Access
ports on the selected VLAN.
Figure 29:VLAN Port Map screen
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All ports pass through a single switch processor, but VLAN membership for some ports is configured on
WAC 1 and others on WAC 2 as shown in Figure 30: Logical block diagram of the Network Switch. All
physical ports can be assigned to be either a trunk port or access port.
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Figure 30: Logical block diagram of the Network Switch
To configure a port:
1. Set the Mode to be either Trunk or Access (for physical ports).
2. Select the VLAN Membership(s). For an Access port only one VLAN can be selected. For a trunk
port multiple VLANS can be selected.
3. Click Save Settings to save VLAN port map settings.
Note: To configure the VLAN port map properly, it is recommended to understand the principles
of VLANs. For more details on VLANs, see Understanding VLANs on page 45.
5.4.5 Wireless Distribution System (WDS) settings
The Wireless Distribution System (WDS) feature allows wireless interconnection of ImPact network
devices. Up to six devices can be configured.
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To configure WDS settings:
1. Click in the WDS Enable check box.
2. Under WDS Security section, enter the wireless network name (SSID).
3. Select the Security Mode and enter the authentication details.
4. Under WDS Peers, enter the MAC address of the network devices that the device will use WDS to
connect to.
5. Click Save Settings.
Note: WDS links always operate as trunk ports with all VLANs passing across the trunk.
5.5 Tools Tab
The T ools tab is used to configure password access, sa ving and restoring device configuration and firmware
upgrades.
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5.5.1 Configuring Administrator and User Settings
The network device details, administrator and user login can be configured on the Admin configuration
screen as shown in F igur e 31: Admin configur ation scr een. These details are used by the Simple Network
Management Protocol (SNMP) agent.
To enter device details:
1. Enter the device Name, Contact and Location in the supplied fields.
2. Click Save Settings.
Figure 31: Admin configuration screen
The administrator and user password are used to restrict access to the web browser management tool. It
is recommended to create new password for both administrator and user.
To create passwords:
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1. Under ADMIN PASSWORD, enter the administrator password in the Password and the Verify
Password fields. Administrators have full access to the web browser interface.
2. Under USER P ASSWORD, enter the user password in the Password and the Verify Password fields.
Users have read-only access to the web browser interface.
3. Click Save Settings.
5.5.2 Saving and Restoring Configuration Settings
The Admin configuration screen allows network switch settings to be saved as a .gws file. Saved
configuration files can be used to restore settings to the device.
To save network switch settings as a configuration file:
1. Click Save Configuration. A File Download dialog box is displayed.
2. Click on Save. Select a folder to save the configuration file and click Save.
To restore the configuration of a device:
1. Click Choose File and locate the previously saved .gws configuration file. The Choose File to Upload
window will open.
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Configuration Using the Web Interface
3. Click Restore Configuration from File. The de vice will upload the configuration file. The SUCCESS
screen is displayed.
4. Click Reboot the Device to reboot or click Continue to return to the previous configuration screen.
Rebooting the device will end the current configuration session.
5.5.3 Activation Screen
The Activation configuration screen is used to enable the PoE supply on the wireless network switch as
shown in Figure 32: PoE activation screen. This feature is currently available by default, and no action
is required.
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Figure 32: PoE activation screen
5.5.4 Setting the Time
The Time configuration screen shown in Figur e 33: Time configuration screen is used to define regional
time settings on the device.
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Figure 33:Time configuration screen
To set the time:
1. Select the appropriate time zone from the Time Zone drop-down box.
2. Click Enable Daylight Saving check box if the selected region has daylight saving. Daylight saving
options will be displayed.
3. Select the Daylight Saving Offset in the drop-down box.
4. Select the region's DST Start date and DST End date.
5. Click Save Settings.
Automatic Time Configuration
Time on the device can be synchronised to a Network Time Protocol (NTP) server. The NTP lookup is
performed by the switch's management CPU, which resides on the Infrastructure VLAN.
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To enable a NTP server:
1. Select Enable NTP Server check box.
2. Enter the NTP server name (the IP address or a host name), or select a NTP server from the drop-down
box.
3. Click Save Settings.
Note: If the network device loses power, network time will not be maintained. If NTP is enabled,
the network switch will synchronise the time shortly after power up.
Note: If a host name is entered, DNS settings must be configured and the device must be able to
contact the DNS server.
Manual Time Configuration
Time on a device can be set manually if there is no access to a Network Time Protocol (NTP) server.
To set the time manually:
1. Select the time and date from the drop-down boxes.
2. Alternatively , click Copy Your Computer's Time Settings b utton to copy the time from the connected
computer.
3. Click Save Settings.
5.5.5 Rebooting or Restoring the Network Device
The System configuration screen enables the device to be rebooted or restored to the factory default
settings as shown in Figure 34: System configuration screen.
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Figure 34: System configuration screen
Click Reboot the Device to reboot the device. Any unsaved settings on the device will be lost and the
connection will terminate.
Click Restore all Settings to the Factory Defaults to restore the device to default settings. All current
settings will be erased.
5.5.6 Upgrading Firmware
Device Firmware can be upgraded from the Firmware upgrade screen as shown in F igure 35: F irmware
upgrade screen. The firmware is a binary (.bin) file format.
Note: WAC 1 must be upgraded before WAC 2.
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Figure 35: Firmware upgrade screen
Important: Firmware upgrades may reset the network device to default factory settings (please
refer to the firmware release notes to determine if this will occur). It is highly recommended to save
configuration settings before updating firmware. For more information, see Saving and Restoring
Configuration Settings on page 72.
It is recommended that a client device (PC or laptop) has a wired connection to the network device to
upgrade the firmware. Please contact your MST System Engineer for firmware files.
To upgrade the firmware:
1. Click Browse. The Choose File to Upload dialog box will open.
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2. Select the binary (.bin) firmware file and click Open.
Configuration Using the Web Interface
3. Click Upload. The firmware will upload to the device.
4. When the firmware has been successfully uploaded, the UPLOAD SUCCEEDED screen will appear .
The network switch will reboot after 60 seconds.
5. Previous configuration settings can be restored to the network switch via the TOOLS > ADMIN
configuration screen.
5.6 Status Tab
The Status tab displays device information, wireless clients, system logs, network traffic statistics and
the most recent Wi-Fi tag reads.
5.6.1 Obtaining Device Information
The Device Info status screen as shown in Figure 36: Device Info Status screen displays system time,
firmware version, LAN and wireless LAN summary information.
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Figure 36: Device Info Status screen
Note: Changes in status display are dependent on the web browser . Some web browsers may report
an error when obtaining WLAN status, or require to refresh the web browser screen.
5.6.2 Wireless Client Information
The Wireless status screen displays current information about wireless clients connected to the access
point.
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Figure 37:Wireless status screen
A description of each field is listed in the following table.
DescriptionField
The address of the client device.MAC Address
Indicates if the client device is in 802.11b or 802.11g mode.Mode
The data rate for the connection in Mbps.Rate
Signal
Note: The Wireless Client Device List groups the devices by the wireless SSID with which they
are associated.
The percentage signal strength of the client device, as received by the
access point.
5.6.3 Viewing System Logs
The Logs screen displays the device logs. It is possible to filter by the type of logged ev ents and the ev ent
level.
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Figure 38: Logs status screen
To define LOG OPTIONS:
1. In the What to View fields, select the System check box.
2. In the View Levels field, select the check boxes on the reporting levels required.
3. Click Apply Log Settings Now.
To view LOG DETAILS:
1. Click Refresh to update the list.
2. Click Clear to clear the list. A confirmation message box is displayed.
3. Click OK to continue.
4. Click Save Log to save the log as a text file. A log of the clear action is recorded. Any changes made
to the log characteristics are also recorded in the log.
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5.6.4 Viewing Network Traffic Statistics
The Statistics status screen provides network traffic statistics for the WAC's LAN interface and each of
the wireless SSIDs.
Figure 39: Statistics status screen
To view statistics:
1. Click Refresh Statistics to update the statistics.
2. Click Clear Statistics to clear displayed statistics. A reset confirmation dialog box is displayed.
3. Click OK.
A description of the parameters are listed in the following table.
DescriptionStatistic
Sent
Received
TX Packets Dropped
RX Packets Dropped
The number of frames sent from the CPU and all wireless interfaces to the
switch processor.
The number of frames received by the CPU and all wireless interfaces from
the switch processor.
The number of frames dropped while being sent to the switch processor,
due to errors, collisions, or network switch resource limitation.
The number of frames dropped while being received from the switch
processor, due to errors, collisions, or network switch resource limitation.
The number of frames dropped due to Ethernet collisions.Collisions
The number of transmission failures that caused the loss of a packet.Errors
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5.6.5 Viewing Ethernet Switch Information
The Switch status screen displays general switch information as shown in F igure 40: Switc h status screen.
Switch information can only be accessed for the WAC in slot 1 of the Network Switch. It displays the
following parameters:
•The temperature inside the switch processor
•The voltage of the supply rail
•
The voltage of the PoE rail (This will read as 0 (volts DC) if PoE is disabled)
•The vendor and part number for each of the SFP modules
•The link, speed, duplex and PoE power status for each switch port.
Figure 40: Switch status screen
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5.6.6 Viewing Tracking Information
The Tracking status screen displays the status of the tracking servers that are registered to the network
device as shown in Figure 41: Tracking status screen.
Figure 41:Tracking status screen
5.6.7 Viewing Recent Tag Reports
The T ags status screen displays the last ten AeroScout tag reads when asset tracking and location services
are enabled.
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Figure 42:Tags status screen
A description of the tag status parameters are listed in the following table.
DescriptionField
MAC address of the tag being read.MAC Address
RSSI
This screen assists to verify the following:
•The device is detecting AeroScout® tags.
•Tag reports are generated for a particular tag by viewing sequence number.
•Received RF signal strength.
Received Signal Strength Indicator (RSSI) is a measurement of the quality
of the received radio signal.
The sequence number of the tag transmission.Sequence
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Chapter
6
Centralised Configuration Management
Topics:
•Overview
•Site Configuration files
•Editing Site Configuration Files
•Device Configuration Files
•Editing Device Configuration
Files
•Applying Configuration Files
Centralised configuration management is an alternative configuration
method to the web interface. It uses Trivial File Transfer Protocol
(TFTP) where devices read and apply configuration files from a TFTP
server. It is a faster way to configure a large number of network
switches, reducing the potential for human error.
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6.1 Overview
Centralised configuration management involves the following steps:
1. Configure a TFTP server on the network.
2. Define a site configuration file which contain global settings to all network devices on the site.
3. Define device configuration files which contain specific settings for each device, which o verride global
settings.
4. Applying the configuration files to each device and rebooting.
Network devices read and apply the configuration files from the TFTP server as shown in Figure 43:
Centralised configuration management.
Figure 43: Centralised configuration management
6.2 Site Configuration files
Site configuration files contain common settings for all devices in a network. The site configuration file
has the naming convention ap_site_settings.conf. This file is retrieved by devices using TFTP.
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Note: The same site configuration file can be used to configure network switch units and WAPs
in a network. When the site configuration file is applied to WAPs, all switch port settings are ignored
by the WAP.
6.3 Editing Site Configuration Files
The site configuration file can be opened on a PC and edited using a text editor. Parameters are changed
by modifying the text and saving the file. A description of the editable parameters are covered in the
following sections.
To edit a site configuration file:
1. Open a text file editor on your PC.
2. Locate and open the site configuration file ap_site_settings.conf. This is usually stored in the file
directory folder of the TFTP server.
3. Edit the parameters as required.
4. Save the site configuration file in the directory folder of the TFTP server.
6.3.1 Network
The network section of the configuration file defines common LAN settings to all devices on a network
as shown below.
# Mine Site Technologies Wireless Network Switch / Wireless Access Point Site
Config File
A description of the network parameters are listed in the following table.
DescriptionText field
The subnet mask for the network.network.netmask
The IP address of the default gateway.network.gateway
The DNS server to be used when looking up host names.network.dns.primary
network.dns.secondary
The backup DNS server to be used when looking up host
names.
The domain name of the local network.network.local_domain_name
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6.3.2 System
Network names, contact details and passwords can be edited in the system section of the configuration
file as shown below.
A description of the system parameters are listed in the following table.
DescriptionText field
Contact name for the network devices.system.contact
Location of the network devices.system.location
Administrator password. The default password is "admin".system.admin_password
User password. The default password is "user".system.user_password
6.3.3 Setting the Time
The Time section shown below defines regional time settings for the network switch.
The editable parameters are described in the following table.
DescriptionField
time.timezone.index
time.timezone.offset
time.daylight_saving.enabled
The index representing the timezone the device is in. Refer to
Time Zone Indices and Offsets on page 111 for values and
countries.
Timezone offset from Greenwich Mean Time (GMT) represented
in seconds. Refer to Time Zone Indices and Offsets on page 111
for offset values.
Daylight saving can be enabled by entering 1 or disabled by
entering 0.
Time offset value in seconds when daylight savings is enabled.time.daylight_saving.offset
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DescriptionField
time.daylight_saving.start.month
time.daylight_saving.start.week_of_month
time.daylight_saving.start.day_of_week
time.daylight_saving.start.hour
time.daylight_saving.finish.month
time.daylight_saving.finish.week_of_month
time.daylight_saving.finish.day_of_week
time.daylight_saving.finish.hour
time.ntp.enabled
The month when daylight saving starts. Accepted values are from
1 to 12.
W eek of the month when daylight savings starts. Accepted v alues
are from 1 to 5.
Day of the week when daylight saving starts. Accepted values are
from 1 to 7 where 1=Sunday.
Hour of the day when daylight saving will start. Accepted values
are from 0 - 23.
Month when daylight saving will end. Accepted values are from
1 - 12.
Week of the month when daylight saving will finish. Accepted
values are from 1 - 5.
Day of the week when daylight saving will finish. Accepted values
are from 1 - 7; where 1=Sunday.
Hour of the day when daylight saving will finish. Accepted values
are from 0 - 23.
Enables the device to synchronise time with a Network Time
Protocol (NTP) server . Enter 1 to enable, 0 to disable. The network
switch requires access to the DNS server and the NTP server.
time.ntp.server
Domain name of Network Time Protocol (NTP) server. For
example time.windows.net.
6.3.4 Power Over Ethernet Configuration
Power Over Ethernet enables the 48VDC PoE supply feature, and is enabled by default. In the
switch.poe.enabled field type 1 to enable or 0 to disable.
6.3.5 Setting up Asset Tracking and Location Servers
The Tracking section shown below configures asset tracking and location servers, consisting of
AeroScout® Positioning Engines or MST Tracker Engines. This is where AeroScout® tag and Wi-Fi
client device information is sent. Configuration is not required when communicating with an AeroScout
positioning engine.
A device can be configured to communicate with up to two MST Tracker Engines. A description of the
setup parameters are listed in the table below.
DescriptionField
tracking.tag_rssi_threshold
By default it is set at -95. Only tag reports higher than this signal strength
threshold will be sent to the positioning engines.
tracking.mu_rssi_threshold
By default it is set at -95. The default v alue should not be changed without
understanding the implications. Only W i-Fi client frames higher than this
signal strength threshold will be sent to the positioning engines.
enabled
The reporting to MST Tracking Engine can be enabled by entering 1 to
enable or 0 to disable.
The IP address of the MST Tracking Engine.server_address
UDP port to be used by messages sent to the MST Tracker Engine.server_port
status_reporting_interval
The period between status reports being sent to the MST Track er Engine.
These status reports are used to determine Access point availability.
6.3.6 Switch Configuration
The Switch Configuration section is used to control switch ports and assign VLANs.
# Power over Ethernet
# ------------------switch.poe.enabled=1
6.3.7 VLAN Configuration
The VLANs section defines VLANs for the de vices as shown belo w . For large networks it is recommended
that VLAN settings are applied to all network devices consistently by using centralised configuration
management.
# VLAN Configuration
# ==================
vlan.enabled=1
# VLAN 1 cannot be disabled or have its name changed
Up to 8 VLANs can be defined. Each entry.x in the VLAN section represents a VLAN. By default, the
site configuration file has some VLANs predefined based on commonly used applications. VLAN
parameters are described in the table below.
DescriptionField
Sets whether VLANs are enabled on the switch.vlan.enabled
vlan.entry.x.enabled
Enables VLAN x. Typing 1 will enable the VLAN, 0 will disable
the VLAN.
vlan.entry.x.id
The VLAN ID that will be tagged to frames sent to trunk ports from
VLAN x.
vlan.entry.x.priority
Priority from 0-7 (with 7 being the highest) that is assigned to frames
on VLAN x.
The administrative name for VLAN x.vlan.entry.x.name
Note: The Infrastructure VLAN cannot be edited or disabled because the management CPU is on
this VLAN.
For more information on VLANs, refer to Understanding VLANs on page 45.
6.3.8 Wireless EAP Configuration
The Wireless EAP section is used to configure the RADIUS server as shown below. This is applicable
for wireless networks configured with WPA Enterprise security mode.
The wireless network parameters are described in the following table.
SettingsDescriptionField
Enter 1 to enable or 0 to disable.Enables or disables the wireless network.enabled
ssid
The name of the wireless network visible to client
devices.
Choose a network name that
relates closely to its function. For
example "MST-VOICE".
invisibility
Enables or disables visibility of the wireless
network to anyone within range.
Click on the Visible option button
to enable wireless network
visibility.
dtim_interval
A DTIM is a countdown informing clients of the
next window for listening to broadcast and
multicast messages. Wireless clients detect the
beacons and awaken on the DTIM interval to
receive the broadcast and multicast messages.
Valid settings are between 1 and
255. The recommended DTIM
interval is 1.
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SettingsDescriptionField
vlan_membership
VLAN range from 1-8.The VLAN assigned to devices on the wireless
network. VLANs are defined in the VLAN
configuration section of the site configuration file.
Three selectable wireless security modes:security_mode
•WEP is the original wireless encryption
standard.
Security settings include 1 = Open,
2 = WEP, 3 = WPA-Personal, 4 =
WPA-Enterprise
•WPA provides a higher level of security.
•WPA-Personal does not require an
authentication server.
•WPA-Enterprise requires a RADIUS
authentication server.
6.4 Device Configuration Files
Device configuration files contain settings specific to each WAC in the network device. A device
configuration file is created for each WAC. Device configuration files follow the naming convention
ap_MACaddress.conf where MACaddress is the MAC address of the WAC. A device will recognise
and apply the device configuration file based on a comparison of the MAC address in the file name.
Note that any parameter from the site configuration file can override parameters in a de vice configuration
file. However, it is recommended that only the settings that are different be entered into the device
configuration file in order to make maintenance easier.
6.5 Editing Device Configuration Files
A device configuration file configures individual settings for each device as shown below. The device
configuration file can be edited using a text editor such as Wordpad or Notepad. The example below
includes settings that are commonly over-ridden. All other settings are inherited from the global site
configuration file.
# Mine Site Technologies Wireless Network Switch Config File
# System
# ======
#
system.hostname='AP57R2'
system.location="Mine Location 16"
# Network
# =======
#
network.addr=192.168.0.247
# Wireless Radio Configuration
# ============================
#
wireless.radio.channel = 11
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# Power over Ethernet
# ===================
#
switch.poe.enabled = 1
The parameters shown in the example device configuration file are described in the following table.
SettingsDescriptionParameterSection
system.locationSystem
network.addrNetwork
wireless.radio.channelWireless Radio
Configuration
switch.poe.enabledPower over
Ethernet
To edit a device configuration file:
Network switch name.system.hostnameSystem
Location name of the
network switch.
IP address of the WAC
in the network switch.
Wi-Fi channel that the
WAC will operate on.
the network switch.
Each device should have a unique
name identifier.
It is recommended the location name
is relevant to the physical location of
the device.
Every WAC will be assigned a unique
IP address.
It is recommended WACs in proximity
of each other have assigned channels
1, 6 and 11. This minimises signal
overlap and interference.
0 = Disabled 1 = EnabledEnabling PoE supply on
Note: This setting is not
applicable to WAPs and will be
ignored when the file is applied
to a WAP.
1. Open a text file editor on your PC.
2. Locate and open the device configuration file ap_MACaddress_settings.conf. This is usually stored
in the file directory folder of the TFTP server.
3. Edit the parameters as required.
4. In the directory folder of the TFTP server, save the file using the naming
ap_MACaddress_settings.conf, where MACaddress is the MAC address of the WAC card to
configure.
6.6 Applying Configuration Files
To apply configuration files to a network switch:
1. Connect a PC to the network or network switch. Refer to Connecting a PC to an ImPact Network
Device on page 115 for more information.
2. Check the TFTP server is connected and running on the same network as the network device. If the
TFTP server is being run on the PC, open the TFTP server application.
3. Open a Telnet software utility on your computer. For a PC with Windows OS, open the command
prompt.
4. T ype T elnet xxx.xxx.xxx.xxx (where xxx.xxx.xxx.xxx is the IP address of the WAC card in the ImPact
network device to be updated). The login screen will be displayed.
8. If the location of the TFTP server is being defined for the first time, Type 1 and press ENTER to select
Configuration Server. If the TFTP server has been previously defined (i.e. the IP address is shownnext to Configuration Server), go to Step 10.
Configuration Server
-------------------Configuration Server : [192.168.1.95]
Please enter a host with a FQDN or an IP address in the form XXX.XXX.XXX.XXX
Enter new value: 192.168.1.95
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9. Enter the IP address or the domain name of the TFTP server and press ENTER. This will tell the