Trilliant SecureMesh XTEN-1000 User manual

PL-0041A__1_1_Installation_Guide_SecureMesh_Extender_111004.docx PL-0041A
SecureMesh™ Extender
XTEN-1000
INSTALLATION GUIDE
Contents
INTRODUCTION ............................................................................................................................................................................ 3
SECUREMESH EXTENDER COMPONENTS .........................................................................................................................................................3
ACCESSORIES .............................................................................................................................................................................................5
PREPARING FOR INSTALLATION .................................................................................................................................................... 6
REQUIRED PRE-PROVISIONING EQUIPMENT .....................................................................................................................................................6
REQUIRED OUTDOOR EQUIPMENT .................................................................................................................................................................6
INSTALLATION LOCATION..............................................................................................................................................................................6
PRE-PROVISIONING.....................................................................................................................................................................................7
INSTALLING THE EXTENDER........................................................................................................................................................... 8
UTILITY POLE INSTALLATION .........................................................................................................................................................................9
Mounting the Device .........................................................................................................................................................................9
Grounding and Protecting the Device .............................................................................................................................................10
Connecting the Device to a Source of Power...................................................................................................................................11
Completing the installation .............................................................................................................................................................12
STREETLIGHT POLE MOUNTING AND GROUNDING...........................................................................................................................................13
Mounting the Device .......................................................................................................................................................................13
Connecting the Device to a Source of Power...................................................................................................................................15
Completing the Installation.............................................................................................................................................................16
OPTIONAL WI-FI INSTALLATION ..................................................................................................................................................................17
Attaching the Optional Wi-Fi Antennas...........................................................................................................................................17
COMMISSIONING THE EXTENDER.................................................................................................................................................18
CONFIGURING THE SECUREMESH EXTENDER ..................................................................................................................................................18
MONITORING THE POWER-ON SEQUENCE.....................................................................................................................................................18
APPENDIX....................................................................................................................................................................................19
GROUNDING GUIDELINES ...........................................................................................................................................................................19
FCC STATEMENT (US)...............................................................................................................................................................................21
INDUSTRY CANADA /INDUSTRIE CANADA (CANADA) .......................................................................................................................................21

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TM
Extender Installation Guide
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S AFETY I NFORMATION
Trilliant strongly urges that you always follow all locally approved safety procedures and safety instructions
when working around high voltage lines and equipment.
The instructions in this manual are not intended as a substitute for proper training or adequate experience in
the safe operation of the equipment described. Only competent technicians who are familiar with this
equipment should install or service it. A competent technician has these qualifications:
•Is thoroughly familiar with these instructions.
•Is trained in industry-accepted high-and low-voltage safe operating practices and procedures.
•Is trained and authorized to energize, de-energize, clear, and ground power distribution equipment.
•Is trained in the care and use of protective equipment such as flash clothing, safety glasses, face
shield, hardhat, rubber gloves, hotstick, etc.
The following is important safety information. For safe installation and operation of this equipment, be sure to
read and understand all cautions and warnings.
Safety Instructions
HAZARDOUS VOLTAGE.CONTACT WITH HAZARDOUS VOLTAGE WILL CAUSE DEATH OR SEVERE
PERSONAL INJURY.FOLLOW ALL LOCALLY APPROVED SAFETY PROCEDURES WHEN WORKING AROUND
HIGH-AND LOW-VOLTAGE LINES AND EQUIPMENT.
THE SECUREMESH EXTENDER IS DESIGNED TO BE OPERATED IN ACCORDANCE WITH NORMAL SAFE
OPERATING PROCEDURES.THESE INSTRUCTIONS ARE NOT INTENDED TO SUPERSEDE OR REPLACE
EXISTING SAFETY AND OPERATING PROCEDURES.READ ALL INSTRUCTIONS BEFORE INSTALLING THE
EXTENDER.
THE SECUREMESH EXTENDER SHOULD BE INSTALLED AND SERVICED ONLY BY PERSONNEL FAMILIAR
WITH GOOD SAFETY PRACTICES IN THE HANDLING OF HIGH-VOLTAGE ELECTRICAL EQUIPMENT.

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INTRODUCTION
The SecureMesh™ Extender provides the functionality of a SecureMesh Wide Area Network (WAN) relay
node, and, as its name implies, extends the mesh network from the SecureMesh™ Gateway to Extender
Bridges, Connectors or other Extenders.
The Extender’s 5 GHz SecureMesh WAN radio uses its array of eight, beam-switched, directional antennas to
provide extended range and full 360° coverage and provides a best-path, vector-based routing algorithm
becoming part of a self-healing mesh network.
The Extender offers an Ethernet port for WAN client devices, allowing a single client device or, by using an
external IP router or Ethernet switch, many client devices to connect to the WAN. If deployed using a
SecureMesh Power Service Unit (PSU), the Ethernet port for WAN client devices is made available through the
PSU’s port.
SecureMesh Extender Components
The following diagram shows the major components of the SecureMesh Extender.
side view
Ethernet, 8P8C
data and power
serial, 8P8C
water intrusion gasket
status lights
optional: Wi-Fi
access point bulkhead
connector
bottom view
grounding lug
optional: Wi-Fi
access point bulkhead
connector

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The following diagram shows the SecureMesh Extender package contents.
Optional: Wi-FI
antennas
SecureMesh Extender

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Accessories
product number description
Surge Suppressor 620-00705-01 required unless provided by customer
Horizontal
Pole Mounting Bracket
620-R0007-01 for horizontal pole mounting only (e.g., streetlight cantilevers)
Vertical
Pole Mounting Bracket
DK-0029A for vertical pole mounting only (e.g., utility poles)
One of the following power supplies is required:
24V Power Service Unit PSU-1024-33 •recommended outdoor power supply and backup battery
•24V PoE connection to SecureMesh Extender
•Standard 802.3at 48V PoE connection to client device
(without battery backup)
•33 Amp-hour backup battery (>8 hours backup at 68ºF /
20ºC)
•not needed if site location provides an Uninterruptible Power
Supply
Indoor Power Supply
w/ PoE Injector
170-R0006-01 •optional indoor power supply
•100-240 VAC, 24 VDC, 1.3A
•power cord sold separately (see below)
Streetlight
Power Supply
•optional outdoor power supply
•no battery backup capability
620-R0005-01 20-foot / 6-meter cable to photoelectric tap
620-R0005-02 3-foot / 1-meter cable to photoelectric tap
Streetlight
Installation Kit –
including Power Supply
•optional horizontal pole installation kit
•includes mounting bracket, streetlight power supply, and surge suppressor
620-00708-01 horizontal pole mount with 20-foot / 6-meter cable to
photoelectric tap
620-00708-02 horizontal pole mount with 3-foot / 1-meter cable to
photoelectric tap
Power Cord to be purchased for use with Indoor Power Supply w/ PoE Injector
171-R0005-01 IEC320-C13 plug for Americas
171-R0005-02 IEC320-C13 plug for UK
171-R0005-03 IEC320-C13 plug for Europe
171-R0005-05 IEC320-C13 plug for Australia
171-R0005-06 IEC320-C13 plug for Latin America

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PREPARING FOR INSTALLATION
Required Pre-Provisioning Equipment
The following equipment is required to support pre-provisioning of the Extender, typically in a lab environment:
•A PC connected to the same Ethernet network as the SecureMesh Extender. The Extender’s default IP
address for Extender functionality is 192.168.0.2.
•A power supply, typically one of the power supplies listed as an Extender accessory.
•A CAT5e, Ethernet cable for connecting the Extender’s Surge Protector to a 24V PoE power supply
and the site’s Ethernet network
Required Outdoor Equipment
The following equipment is required to support field installation of the Extender:
•A power supply, typically one of the power supplies listed as an Extender accessory. For all outdoor
installations, the PSU-1024-33A SecureMesh Power Service Unit is recommended unless an
Uninterruptible Power Supply is available.
•A CAT5e, UV-protected, Shielded-Twisted Pair (STP) Ethernet cable with ground wire for connecting
the Extender’s Surge Protector to the PoE power supply.
•One of the accessory mounting brackets listed above or a similar mounting bracket providing a vertical
pole with a 1.25” to 2” diameter that is a minimum of 18” from any structure to the side of the Extender.
The vertical pole must extend a minimum of 5” above the horizontal surface of the bracket.
•A 10 AWG (or larger) ground wire of sufficient length to connect the Extender to the primary grounding
point of the utility structure to which the Extender will be mounted.
•A magnetic level to ensure the Extender is plumb.
•Self-fusing rubber insulation and sealing tape such as Scotch®130C or 2228 Rubber Mastic Tape
Installation Location
In general, a SecureMesh Extender should be installed in a location that will not obstruct the radio signals to
and from the SecureMesh Extender. The SecureMesh Extender should be installed in a location that meets all
of the following guidelines:
•Installation and wiring of the SecureMesh Extender must conform to all local electrical codes and
ordinances.
•The installation location must be either owned by the utility or the utility must have access rights to the
location.
•The installation location must be able to provide adequate power. Note that the 24V Power Service
Unit requires 90-265 VAC 50/60 Hz power.
•The Extender enclosure must be mounted at least 18 feet (5.5 meters) above ground level, although
radio performance and coverage will generally improve as the mounting height is increased.

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•The installation location must not obstruct radio communications. For example:
— The mounting structure should not block radio coverage or be adjacent to structures that block
radio coverage).
— The installation location must be clear of thick trees or brush growth upon installation and in the
foreseeable future. Foliage in the line of sight with other communicating devices can
detrimentally affect radio performance.
— The Extender should have an unobstructed view of the sky overhead. The Extender relies upon
GPS (Global Positioning System) signals to establish time synchronization, and the strongest
GPS signals are available if the device has an unobstructed view of the sky. Upon startup, the
Extender searches for a GPS signal. If the device cannot detect a signal, it will be unable to
complete startup and will not establish wireless connections with other SecureMesh WAN
devices.
•As necessary, adequate space must be available to use a bucket truck.
•The installation location must not impede normal maintenance activities (for example, access to the
Extender’s associated Power Service Unit to replace the battery).
•If choosing a streetlight pole installation, make sure the streetlight is providing constant power.
Pre-Provisioning
In general, each Extender is shipped from the factory with basic configuration items already written into non-
volatile memory. However, certain information must still be configured prior to installation.
Provide power to the Extender, and then configure parameters associated with both Extender and Collector
functionality.
To configure the Extender’s parameters, connect the Extender to an Ethernet network, establish a Telnet
session to IP address 192.168.0.2 to access and invoke the command line interpreter. Please refer to the
“SecureMesh™ WAN Command-Line Interface” (Trilliant document number DP-0985) for complete
information.
The following Extender parameter must be configured:
Shared network key (“netkey”) — the shared network key is used by a SecureMesh WAN node to
prove (via an authentication handshake) that the node belongs to a particular network or operator; i.e.,
the shared network key is used to authenticate the SecureMesh WAN node to the SecureMesh WAN
and, reciprocally, authenticate the SecureMesh WAN to the SecureMesh WAN node. The netkey is a
string of 6 to 64 ASCII letters, numbers, or symbols.
If IPsec VPNs are being used (and Trilliant strongly recommends their use), the following Extender parameter
must also be configured:
VPN credentials — the VPN shared secret allows a SecureMesh WAN management tunnel to be
established to the VPN router (note that in automatic provisioning mode, node configuration is provided
in a secure manner over the IPsec VPN tunnel, requiring the VPN credentials in order to establish the
tunnel and thus necessitating that they be configured before deployment). Because a SecureMesh
WAN node’s IP address may be dynamic (for instance, a node may connect to different IP subnets
through different SecureMesh WAN Gateways), a VPN router will be unable to differentiate between
different VPN clients, and the SecureMesh WAN nodes in a network must all employ the same VPN

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shared secret. The VPN shared secret is any ACSII string up to 64 bytes in length, using any
combination of letters, numbers, or symbols.
As an option, Trilliant recommends that the following Extender parameters be configured in order to speed up
the time required for an Extender to discover other SecureMesh WAN nodes and become part of the network:
•primary frequency – the primary frequency should be configured to be the same center frequency
value as configured for the Gateway to which the Extender is expected to connect. Specify the primary
frequency in MHz as a four digit number (e.g. 5745).
•allowed frequencies – the allowed frequencies defines the various frequencies which the Extender will
“hunt” for other SecureMesh WAN nodes and Gateways. The range of frequencies should be
configured to the range that will be used by other SecureMesh WAN nodes in this specific deployment.
The range may be specified as “all” or a group of specific frequencies. When specifying a group, enter
each value separately as a 4 digit number (MHz), evenly divisible by 5.
INSTALLING THE EXTENDER
Physically installing the SecureMesh Extender involves:
•Mounting the device
•Grounding and protecting the device
•Connecting to a source of power
•Completing the installation
•Optionally: Attaching the Wi-Fi antennas
Installation of the Extender on either a utility pole or streetlight is discussed in the following subsections.

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Utility Pole Installation
To install an Extender on a utility pole, observe the following procedures:
Mounting the Device
Mount the Bracket
•The DK-0029A vertical pole mounting bracket has an
extension arm and a mounting pole as shown on the
right.
•Mount the equipment extension arm to the utility pole
using bolts or bands.
•Attach a steel mounting pole through the end of the
extension arm using the 5/8” attached bolt on the bottom
of the pole mount. Firmly tighten.
Attach The Extender to the Bracket
Use the provided mounting bracket and appropriate length
¼“diameter screws that are provided in the accessory kit to
attach the SecureMesh Extender to the mounting pole (see
the figure on the right).
Note that screws 1" in length can accommodate a pole
diameter up to 1½" while screws 2" in length accommodate a
pole diameter of 2-1/8”.
The screws should be tightened to 20 foot-pounds (27
Newton-meters) of torque.
equipment
extension arm
utilit
y
p
ole
mounting pole

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Grounding and Protecting the Device
The surge protector box should be attached to the
bottom of the Extender. The surge protector will be
attached using the ground screw as a pivot point then
the box will be swung into place against a mounting
bracket screw.
•Remove the ground screw from the base of the
device, and then loosen (but do not remove) the
screw on the same side of the bracket as the
ground screw
•Run the ground screw through the lug of the green
ground wire coming from the surge protector and
the hole in the surge protector bracket.
•Before tightening the ground screw, remove a
section of the insulation on the ground wire which
will attach to the ground point on the mounting
structure and wrap this section around the ground
screw.
•Pivot the box into place such that the other end of
the surge protector’s mounting bracket touches the
loosened screw. Tighten both screws.
•Be sure to connect the ground wire to the
grounding point on the mounting structure.
•Run the CAT5e cable under the gasket and plug it
into the Ethernet port in the cavity on the device
base (see the diagram to the right)
.
CAT5e
Ethernet Cable
8P8C Ethernet
Port
8P8C serial
port
View of underside with cover plate removed
ground wire
ground wire to
mounting
structure
ground screw

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Connecting the Device to a Source of Power
The Power Service Unit can be used to provide PoE power and battery backup for the Extender. Please refer
to the Power Service Unit Installation Guide for more information (Trilliant document PL-0042A, Installation
Guide, SecureMesh 24V PSU). Alternatively, the site may have its own Uninterruptible Power System that can
be used along with a PoE injector to provide 24V power and data over an Ethernet cable; terminating in an
8P8C connector as per TIA/EIA-568-B.
Connect the Power over Ethernet (PoE) injector to the Surge Protector
Both power and data are provided over the Ethernet cable connection to the Extender.
Always use CAT5e (outdoor CAT5) cable that is shielded (Shielded Twisted Pair – STP), UV protected, with a
drain-wire. The Extender has an auto-sensing Ethernet port and therefore, either a straight through or a cross-
connect cable may be used.
The cable seal gasket (glands) is water-tight and will not allow terminated cables to be passed through. The
cable will have to be re-terminated. Therefore, it may be best to perform the termination on the ground before
beginning the installation.
A sufficient portion of the cable shielding must be available to be connected to the ground bolt.
•Run an un-terminated CAT5e cable through the open glands on the surge protector.
•Strip the protective coating from the outside of the CAT5e cable to a sufficient length that the shield of the
cable may be connected to the ground lug of the surge protector and the twisted pairs may be connected
to the RJ45 or the connector block. Connect the cable shield (drain wire) to the internal ground lug.
•Either terminate the cable from the PoE using an RJ45 connector or terminate all eight cables to the
terminator block. The screw down terminator block is removable from the base board of the surge
protector to ease connections. Please note that the pin-outs of the RJ45 are standard TIA/EIA-568-B. The
screw down terminal block wiring diagram is listed on the main board.
drain wire
crimp lug
grounding connection
inside surge protector
ground bolt
unprotected
CAT5e
Ethernet cable
from PoE power
source
watertight glands
PoE cable ↓
protected CAT5e
Ethernet cable provides PoE
power to Extender

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Completing the installation
•Check the connections and close the device
Check to ensure all connections and grounding are
proper, and replace the surge protector’s cover and the
Ethernet connection cover on the base of the Extender.
These screws should be tightened to 15 foot-pounds
(20 Newton-meters) of torque.
•Secure the Cabling
Use sturdy cable ties or Velcro wraps (not included) to
secure all the cabling against strain, especially if the
installation is subject to high winds.
sturdy cable ties or
Velcro wraps

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Streetlight Pole Mounting and Grounding
To install an Extender on a streetlight, observe the following procedures:
Mounting the Device
Mount the Bracket
•Chose one of the two available Streetlight Installation
Kits from the Extender accessory list. The kits vary only
in the length of the cable to attach to the streetlight
photo cell.
•If the clamp is not already separate from the main
bracket, remove the nuts from the bolts and separate
the clamp from the main bracket.
•Place the main bracket over the light pole’s horizontal
extension arm. Place the clamp on the bolts and
secure with the nuts provided as shown on the right.
Hand tighten the nuts.
•Make the mounting pipe plumb (straight) by moving the
main bracket from side to side and moving the plumb
adjustment bracket forward and backward. The
accuracy should be checked using a magnetic level.
When the mounting pipe is plumb, tighten all nuts.
p
hoto cell ta
p
A
C in
p
ut
excess wire storage
clamp
Ethernet
PoE cable
power supply and
surge protection
plumb adjustment bracket
main bracket
mounting pipe
plumb adjustment screw

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Attach The Extender to the Bracket
Use the provided mounting bracket and appropriate length
¼“diameter screws that are provided in the accessory kit to
attach the SecureMesh Extender to the mounting pole (see
the figure on the right).
Before tightening, rotate the device to ensure there is ample
room for the omnidirectional antennas to clear the mount
stand and streetlight pole.
Attach the Ground Wire
•Connect the Ethernet PoE cable to the Ethernet port at
the base of the Extender, pushing the 8P8C into the
socket on the bottom of the Extender until it locks into
place (as shown on the right). The Ethernet PoE cable
should be routed through the water protection gasket.
•Loosen the ground screw at the base of the Extender.
Remove a section of the insulation on the ground wire
that will attach to the ground point on the streetlight, and
wrap this section around the ground screw and tighten the
screw.
•If the streetlight is completely metal, attach the other end
of the ground wire to the mounting hardware. If the
streetlight is a metal arm attached to a wooden pole the
ground wire must extend to a proper ground location.
Ethernet PoE cable
ground
wire
8P8C Ethernet
socket
8P8C
serial port
View of underside with cover plate removed
water intrusion
gasket

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Connecting the Device to a Source of Power
The Streetlight Installation Kit is to be used with constantly powered streetlights that use standard photocell
adapters. The Streetlight Installation Kit is complete with an A/C to D/C power supply that also provides surge
protection.
Connect to Streetlight AC Power
•Locate the photocell on the light pole (usually located
on top of the street lamp) and remove it; twisting it
counter-clockwise and lifting it from the socket.
•Connect the photocell adapter (power tap) to the
photocell socket; twisting clockwise until hand tight.
•Replace the photocell on top of the photocell
adapter; twisting clockwise until hand tight.
•Coil any excess cable. Place it in the space provided
under the mount stand and secure it.
photocell
photocell adapter /
power tap

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Completing the Installation
•Check the connections and close the device
Check to ensure all connections and grounding are
proper and replace the surge protection box cover and
the Ethernet cover to the base of the Extender. These
screws should be tightened to 15 foot-pounds (20
Newton-meters) of torque.
•Secure the Cabling
Use sturdy cable ties or Velcro wraps (not included) to
secure all the cabling against strain, especially if the
installation is subject to high winds.
sturdy cable ties or
Velcro wraps

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Optional Wi-Fi Antenna Installation
If the Extender has an optional Wi-Fi radio, observe the following procedures:
Attaching the Optional Wi-Fi Antennas
•Attach both 2.4 GHz Wi-Fi antenna to the N-type
female connectors as shown in to the right.
•Hand tighten or, equivalently, tighten the antennas
using a torque-limiting tool tighten it to 14 inch-pounds
(1.5 Newton-meters), where 14 inch-pounds is
approximately the torque a person can achieve using
one hand.
•Use self-fusing rubber insulation and sealing tape to
wrap the antenna bulkhead connector and the
antennas to avoid water penetration of any kind.

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COMMISSIONING THE EXTENDER
Configuring the SecureMesh Extender
Assuming the Extender is properly pre-provisioned, use of automatic provisioning as described in the “Trilliant
Network Element Management System (NEMS) Administration Guide” (Trilliant document number TLT-CS-
ADM-94) recommended.
Monitoring the Power-On Sequence
When power is supplied to the SecureMesh Extender, it starts a
power-on sequence that can be monitored by observing the pair
of LED lights on the underside of the device.
The SecureMesh Extender must have access to a GPS signal to
complete its power-on sequence and start making wireless
network connections. The power-on sequence takes up to 15
minutes, depending on how quickly the device can acquire a
GPS signal.
The tables that follow provide detailed descriptions of device
states indicated by the LED lights. When both LED lights are
illuminated and steady, the Extender has successfully
connected to the wireless network.
Device State Link LED (Green) Activity LED (Amber)
startup in progress slow staggered blinking of both LEDs
startup failure off on
initializing processor (and acquiring GPS
signal) blinks 4 times; repeats cycle blinks 4 times; repeats cycle
initialization failure fast, synchronized blinking of both LEDs
successful initialization, but failure to
locate hello on off
successful initialization; heard hello off blinking based upon RSSI signal
level
successful initialization; link is not
optimized, or is in pre-authorization slow blink blinking based upon RSSI signal
level
successful initialization; link is in standby
state on RSSI fast blink blinking based upon RSSI signal
level
WAN connected – NAN radio operational on on
WAN connected – NAN radio not
operational on blinks 4 times; repeats cycle
Link LED (Green)
A
ctivity LED (Amber)

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APPENDIX
Grounding Guidelines
Proper grounding protects both your SecureMesh device and any equipment connected to it. For the surge
protection circuitry built into the SecureMesh equipment to be effective, proper grounding of the unit is
necessary. Protection is essential if the unit is installed on tall structures or in areas subject to lightning.
Note that the techniques described in this appendix are intended as general guidelines and do not constitute a
comprehensive guide covering all installation scenarios. For maximum protection, contact a qualified
installation specialist who is familiar with your operating environments. If lightning is a threat in your area,
consider a consultation with a lightning and transient protection specialist.
General Grounding Strategy
To ensure optimal reliability, properly ground the metal base of the SecureMesh device. The most efficient
way to ground the device is to use a 10 AWG or larger wire to connect it to a ground point on the structure or
tower.
The three most common grounding points are:
•The primary grounding point or the down lead
provided by an existing grounding system at the
installation site. For example, the grounding
system may be provided by a building's AC
electrical system, a streetlight’s power system,
or as part of a tower structure.
•A 10-foot or longer copper-clad ground rod
driven into the earth. At a tower with multiple
legs, there will typically be one ground rod per
leg and a ground wire loop connecting each of
the rods as shown in the accompanying picture.
•A cold-water pipe. Make sure it is well
connected to earth.
tower grounding at each leg
wired together underground
down lead tied to tower
grounding system
conventional tower grounding

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Making Robust and Lasting Connections
Regardless of the grounding point you use, make sure the connections are capable of retaining low resistance
and integrity over time and with exposure to the elements by use of an antioxidant compound. For protection
against corrosion and rust, wrap all connections with a product such as Scotch®130C or 2228 Rubber Mastic
Tape.
Grounding Checklist
When grounding a SecureMesh WAN device, use the following checklist to confirm that your installation is
adequately protected from power surges and lightning.
•Install all lightning and surge protection devices in accordance with UL 96A installation requirements for
lightning protection systems and the NFPA 780 standard for lightning protection.
•Connect a ground wire from the SecureMesh WAN device to a ground system on the utility pole, tower,
or building.
•When using outdoor Ethernet cable, use UV protected,
Shielded Twisted Pair (STP) CAT5e cabling that includes a
drain wire. The drain wire and cable shield should be
connected to the appropriate ground location on the
SecureMesh WAN device; typically the ground lug inside the
surge protector or the ground point on the outside of the device.
Leave the other end of the drain wire at the power source
unconnected.
•Use the proper size down lead to connect the SecureMesh
WAN device on a roof or tower to the ground system.
•Whenever possible, verify that all points of the ground system
are tied together with less than 5 ohms resistance between any
two points.
For Towers and Rooftops
•Use the proper size down lead to connect the SecureMesh WAN device on a roof or tower to the
ground system.
•Run the CAT5e cable inside the tower structure, tying the cable to the tower leg at every 4 feet of
length. For increased protection, run the CAT5e cable through metallic conduit installed on the tower.
cable jacket
twisted pairs
drain wire
Shielded Twisted Pair (STP) Ethernet cable
with grounding drain wire
cable shield