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iRelay 460 Equipment Installation Guide
Part Number: UGD-D01035
Revision: 1.0
Published: September 2015
© Copyright by Airspan Networks Inc., 2015. All rights reserved worldwide.
Legal Notices
The information contained within this document is proprietary and is subject to all relevant copyright, patent and other laws
protecting intellectual property, as well as any specific agreements protecting Airspan Networks Inc. rights in the aforesaid
information. Neither this document nor the information contained herein may be published, reproduced or disclosed to third
parties, in whole or in part, without the express, prior, written permission of Airspan Networks Inc. In addition, any use of this
document or the information contained herein for the purposes other than those for which it is disclosed is strictly forbidden.
Airspan Networks Inc. reserves the right, without prior notice or liability, to make changes in equipment design or specifications.
Information supplied by Airspan Networks Inc. is believed to be accurate and reliable. However, no responsibility is assumed by
Airspan Networks Inc. for the use thereof nor for the rights of third parties which may be effected in any way by the use of
thereof.
Any representation(s) in this document concerning performance of Airspan Networks Inc. product(s) are for informational
purposes only and are not warranties of future performance, either expressed or implied. Airspan Networks Inc. standard
limited warranty, stated in its sales contract or order confirmation form, is the only warranty offered by Airspan Networks Inc. in
relation thereto.
This document may contain flaws, omissions or typesetting errors; no warranty is granted nor liability assumed in relation
thereto unless specifically undertaken in Airspan Networks Inc. sales contract or order confirmation. Information contained
herein is periodically updated and changes will be incorporated into subsequent editions. If you have encountered an error,
please notify Airspan Networks Inc. All specifications are subject to change without prior notice.
Product performance figures quoted within this document are indicative and for information purposes only.
UK WEE Registration number: WEE/AB0207WZ
iRelay 460 Equipment Installation Guide
Table of Contents
Document Information.............................................................................1
Abstract .................................................................................................................. 1
Revision History ..................................................................................................... 1
About This Document .............................................................................2
Purpose.................................................................................................................. 2
Intended Audience ................................................................................................. 2
Document Conventions .......................................................................................... 2
Document Organization ......................................................................................... 3
Related Reading .................................................................................................... 3
Customer Service Help Desk ..................................................................4
Airspan Encourages Comments ............................................................................ 4
1 Introduction .........................................................................................5
1.1 iR460 with Internal Steerable Antenna Assembly ........................................... 5
1.2 Installation Workflow ....................................................................................... 6
1.3 Installation Checklist........................................................................................ 7
1.4 Verify Site Requirements................................................................................. 7
1.4.1 Commissioning iR460 .................................................................................... 7
1.4.2 LOS Check ..................................................................................................... 7
1.5 Verify Safety Requirements ............................................................................. 7
1.5.1 Warning of Hazardous Voltages ..................................................................... 7
1.5.2 Adhering to European Directive 1999/519/EC ................................................ 8
1.6 Verify Installation Requirements ...................................................................... 8
1.6.1 Verify the Tools .............................................................................................. 8
1.6.2 Verify the Parts and Kits ................................................................................. 8
1.6.3 Verify Components ....................................................................................... 10
2 Installing iR460..................................................................................11
2.1 Unpacking and Examining iR460 .................................................................. 11
2.1.1 iR460 Weights and Dimensions.................................................................... 11
2.2 iR460 Assembly ............................................................................................ 12
2.3 Mounting the iR460 Panel Antenna Unit ....................................................... 13
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3 Connecting and Managing the Cables...............................................19
3.1 Fitting the Protection Earth Cable.................................................................. 19
3.2 Lightning Protection....................................................................................... 20
3.2.1 Surge Protection Specification ..................................................................... 22
3.3 Connecting PoE to iR460 .............................................................................. 23
3.3.1 RJ45 Pin Connections .................................................................................. 23
3.3.2 Weatherproofing the PoE Connectors .......................................................... 23
3.4 Mounting with AirHarmony 1000 ................................................................... 25
3.5 Mounting with AirHarmony 4000 ................................................................... 26
A Job Sheet ..........................................................................................27
B Installation Checklist..........................................................................30
C Initial Site Survey ..............................................................................31
D RFI Checklist .....................................................................................33
E Standard Torque Values – Metric System .........................................35
F Abbreviations ....................................................................................37
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Figures
Figure 1: iR460 ....................................................................................................................................... 5
Figure 2: iR460 Installation Workflow .................................................................................................... 6
Figure 3: Product Dimension Envelope (Wall Mounted) ...................................................................... 12
Figure 4: Product Dimension Envelope (Pole Mounted) ...................................................................... 13
Figure 5: iR460 Mounting Kit Parts ...................................................................................................... 13
Figure 6: Mounting Bracket .................................................................................................................. 14
Figure 7: Sliding the Unit ...................................................................................................................... 15
Figure 8: Sliding the Unit (Close-Up View) .......................................................................................... 15
Figure 9: Securing the iR460 Unit ........................................................................................................ 15
Figure 10: iR460 Mounting Plate ......................................................................................................... 16
Figure 11: Front View of the iR460 Mounting Plate ............................................................................ 16
Figure 12: Sliding the iR460 Unit ......................................................................................................... 16
Figure 13: Securing the iR460 Unit ...................................................................................................... 17
Figure 14: iR460 Installed on a Large Pole.......................................................................................... 17
Figure 15: Attaching the Mounting Bracket .......................................................................................... 18
Figure 16: iR460 with Earthing Connection ......................................................................................... 19
Figure 17: Attaching the Earth Cable to the Pole ................................................................................ 19
Figure 18: Recommended Metal Combinations .................................................................................. 20
Figure 19: iR460 with Internal POE and External Surge Protection and Grounding ........................... 21
Figure 20: iR460 with External POE and Grounding ........................................................................... 22
Figure 21: RJ45 Cable from PoE to the PoE Port of the Unit .............................................................. 23
Figure 22: RJ45 Pin Connections ........................................................................................................ 23
Figure 23: Connecting the Protection Earth and Ethernet Cable......................................................... 24
Figure 24: iR460 with Earth and Ethernet Cables installed ................................................................. 24
Figure 25: Securing the Cables ........................................................................................................... 25
Figure 26: iR460 with AirHarmony 1000 on a Small Pole—Front View ............................................... 25
Figure 27. iR460 with AirHarmony 1000 on a Small Pole—Side View ................................................ 26
Figure 28. iR460 with AirHarmony 1000 on a Large Pole—Side View ................................................ 26
Figure 29. iRelay with AirHarmony 4000 .............................................................................................. 27
Figure 30: Standard Torque Values ..................................................................................................... 35
Tables
Table 1. Typographic Conventions ......................................................................................................... 2
Table 2. iR460 Panel Antenna Specification .......................................................................................... 5
Table 3. iR460 Installation Tools ............................................................................................................ 8
Table 4. iR460 Installation Parts and Kits ............................................................................................... 8
Table 5. iR460 IRM Kit............................................................................................................................ 9
Table 6. iR460 Components ................................................................................................................. 10
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Table 10. Weights and Dimensions of Products and Brackets ............................................................ 11
Table 11. Weights and Dimensions of Brackets ................................................................................... 11
Table 7. Parts List ................................................................................................................................. 13
Table 8. Surge Protection Specification ............................................................................................... 22
Table 9. Network Configuration Information ......................................................................................... 29
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Document Information
Abstract
This document details the procedures for installing the iRelay (iR460) equipment and includes
equipment installation best practices. Airspan assumes that the personnel performing these
instructions have a basic working knowledge of the equipment.
Revision History
Revision Details
Date
Summary of Changes
Preliminary information
August 2015
Added Appendix (Paul Holmes)
Rev 1.0
September 2015
This guide is a new document that provides
instructions for installing iR460.
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About This Document
Purpose
This guide provides the workflow and step-by-step procedures for installing the iR460 equipment. It
includes the following procedures:
•
Verifying prerequisites
•
Installing the iR460 radio equipment
•
Installing the PSU equipment
•
Connecting and managing cables
Intended Audience
This guide is intended for the personnel who install the iR460 equipment. Airspan assumes that a
person performing these instructions is qualified in performing installations and capable of identifying
hazards.
Document Conventions
This document uses the following typographic conventions.
Table 1. Typographic Conventions
Convention
Element
Blue underlined text
Cross-reference links.
Bold text
Keyboard buttons and GUI elements.
Command
Command names or phrases.
Computer output
Text displayed by the computer.
Hyperlinks
Website and e-mail addresses.
Danger
Signifies a hazardous situation—if not avoided—will
cause death or serious injury. Describes how to avoid
it.
Warning
Signifies a hazardous situation—if not avoided—can
cause death or serious personal injury. Describes
how to avoid it.
Caution
Signifies a hazardous situation—if not avoided—can
void the product warranty, and cause property
damage. Describes how to avoid it.
Important
Provides necessary information to explain a task.
Note
Provides additional information.
Tip
Provides helpful hints.
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Document Organization
Chapter
Contents
1 Introduction
Provides an overview of iR460.
2 Installing iR460
Describes how to install an iR460 unit.
3 Connecting and Managing Cables
Provides instructions on how to connect and manage earthing,
lightning protector, and power drop cables.
A Job Sheet
Provides information that aids users in performing the
installation.
B Installation Checklist
Provides an overview of the high–level steps involved in the
installation process.
C Initial Site Survey
Provides the list of requirements that helps you to make sure
that the site is ready for equipment installation.
D RFI Checklist
Provides the list of requirements that helps you to prepare for
installing an iR460 unit.
E Standard Torque Values – Metric System
Lists standard torque values.
F Torque Setting for Serratub Maxi Steel
Bands
Provides information on the recommended torque setting for
the Serratub Maxi steel bands.
G Abbreviations
Lists the abbreviations (used in this document) and their
expansions.
Related Reading
The following document contains related information:
• iRelay 460 Product Specification
This product specification describes the design requirements and standards of iR460.
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Customer Service Help Desk
Airspan’s Customer Care Help Desk offers prompt and efficient customer support services.
Note: To avail Airspan’s Customer Care Help Desk support, you must be a registered user and
must have a valid support contract. To register, click here and fill the Registration form.
To create and update issue logs, send e-mails to Customer Care Help Desk. Once you submit your
issue, the system generates a new issue and sends an issue number for your reference. The system
uses this issue number to categorize and store e-mails under the appropriate issue.
To help Customer Care Help Desk identify your issue, include the issue number and your Customer
Care Helpdesk account details in all further communications.
Main Operations
Worldwide Headquarters
Airspan Communications Ltd.
Airspan Networks Inc.
Capital Point
777, Yamato Road, Suite 105
33 Bath Road
Boca Raton, FL 3341-4408, USA
Slough, Berkshire
Tel: +1 561 893 8670
SL1 3UF, United Kingdom
Tel: +44-1895-467-100
Airspan Encourages Comments
Airspan welcomes any feedback and suggestions that help to improve the quality of the
documentation. Send your feedback to documentfeedback@airspan.com.
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1 Introduction
iRelay 460 (iR460) is part of iRelay —Airspan’s wireless backhaul family.
iR460 offers the following benefits:
•
Provides PtP connectivity.
•
Functions as the building blocks that provides fully secure and encrypted capabilities.
•
Provides a trusted wireless backhaul solution that supports all capacity needs of Airspan’s
eNodeB.
•
Provides high-speed data.
iR460 contains both radio and antenna as a single unit housed such that the antenna direction can be
rotated by software command and by automatic link acquisition software. The complete weatherproof
enclosure can be mounted on a wall, pole, or tower, and powered by an AC or a DC PoE device using
a CAT5e cable.
1.1 iR460 with Internal Steerable Antenna Assembly
This form factor is targeted for short or medium distance deployments where the feeder base is
located on pole mounts (typically, on a lamppost, towers or in a building location).
Figure 1: iR460
Table 2. iR460 Panel Antenna Specification
Item
Specification
Frequency range
LTE B41
Antenna
60°
EIRP
31 dBm (max)
Input power (typical)
< 20 Watt @ Input to PoE
Dimensions (H x W x D)
330 x 200 x 200 mm (excluding cable glands and
mounting)
iR460 unit weight
See Table 7
Radome
UV protected polycarbonate
Operating temperature range
-40°C to +65°C
Wind load
200 km/h (survival)
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Item
Specification
Water proofing
IP-67
1.2 Installation Workflow
Figure 2 shows the steps involved in the iR460 installation workflow.
Figure 2: iR460 Installation Workflow
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1.3 Installation Checklist
To plan the installation of the iR460 unit, use the installation checklist. See Appendix B.
1.4 Verify Site Requirements
1.4.1 Commissioning iR460
To change or check iR460 values, an Ethernet connection or Bluetooth is required to a laptop PC so
that the local web page can be accessed.
1.4.2 LOS Check
For best results it is important to have a clear LOS between iR460 and the DeNB.
To ensure a clear LOS, make sure the following requirements are met:
Note: Make sure to check whether there are any additional obstacles which were not detected
during last survey.
1.5 Verify Safety Requirements
Read and follow all warning notices and instructions marked on the product or included in this
manual.
When installed in the final configuration, the product must comply with the applicable safety standards
and regulatory requirements of the country in which it is installed. If necessary, consult with the
appropriate regulatory agencies and inspection authorities to ensure compliance.
Ascertain the radiation hazards and act accordingly when working in an environment close to other
antennas and electromagnetic fields—for example, working on towers with other Radio transmitters.
1.5.1 Warning of Hazardous Voltages
On AC installations, hazardous voltages exist. Use caution when verifying or working with the AC
power. Before working with the AC power, remove all metal jewellery and accessories (for example—
rings, watches, and other metal items). To avoid personal injury or damage to the equipment, do not
allow these metal items to come into contact with the AC power.
On DC sections, short circuiting the low voltage, low impedance circuits can cause arcing that might
result in burns or eye damage. To avoid shorting DC circuits, remove all metal jewellery and
accessories.
Important: Airspan products do not contain hazardous substances (as defined in UK Control of
Substances Hazardous to Health Regulations 1989 and the Dangerous Substances Regulations
1990). At the end of any Airspan products life cycle, the customer should consult with Airspan to
ensure that the product is disposed of in conformance with the relevant regulatory requirements.
Caution: Any modifications to this device not expressly authorized by the manufacturer can void
the users’ authority to operate this device.
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1.5.2 Adhering to European Directive 1999/519/EC
European Council Recommendation1999/519/EC details basic restrictions and reference levels on
human exposure to electromagnetic fields as advised by the ICNIRP. Adherence to these
recommended restrictions and reference levels should provide a high level of protection as regards
the established health effects that may result from exposure to electromagnetic fields.
1.6 Verify Installation Requirements
1.6.1 Verify the Tools
Table 3 lists the tools required for the installation.
Table 3. iR460 Installation Tools
Tool
Quantity
Purpose
Flat blade screwdriver
For pole straps (large poles)
Wrenches for M8 and M10 hex
head screws
For securing iR460 to the bracket and bracket to small
poles
Large pliers
For tightening the cable glands
Knife
For stripping the back insulation
Wire cutters
For cutting and trimming the electrical wires
Wire strippers
For cutting the insulation
Ring terminals crimp tool
For fitting the ring terminals (for example, on the ends of
the earthing cables)
RJ45 Crimp tool
For crimping the RJ45 connectors to the CAT5e cable
terminating ends
Laptop PC
For commissioning of units and alignment of the PtP links
Optional
As
required
•
Pen
•
Labeling machine with weatherproof label
•
Binoculars
1.6.2 Verify the Parts and Kits
Table 4 and Table 5 provide information on the entire set of installation parts and kits.
For information on the correct set of itinary for a use case (for example, an IB-POE-OD-0 is used for
an outdoor installation with an AC input), see the iRelay 460 Configuration Guide (Rev 1.0).
Table 4. iR460 Installation Parts and Kits
Product
Part Code
Item Description
Quantity per
Install
iR460 unit
IR460-xxxx-xxx-xx
iR460, single Ethernet, PoE input
POE+
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iRelay 460 Equipment Installation Guide
Product
Part Code
Item Description
Quantity per
Install
IB-POE-ID-0
iR460 outdoor AC input POE*
IR460-POE-DC-OD-0
iR460 outdoor DC input POE*
IB-DCCABLE-0
Unterminated DC cable – As required for
installation
IB-ARM-SWACABLEP-0
Armored AC mains cable - As required
for installation
CBL-GND-1M-1
Grounding cable- As required for
installation
Xm
IB-ETH-CAT5EUV-P-0
Shielded CAT5e UV resistant cable - As
required for installation
Xm
CABLE-LABELS-0
Labels for cables - As required for
installation
Mounting kit
Suggested IRM kit (for more details, see
Table 5)
Power Supply
Xm
Cables
Label
Pole mounting kit
IRM kit
Not Supplied
* Power can be supplied from AirHarmony or PoE devices.
The IRM kit lists the suggested consumable items required to complete a physical installation of each
iR460 unit.
Table 5. iR460 IRM Kit
Product
Part Code
Item Description
Quantity per
Pack
RJ45 shielded
connector
IB-ETH-RJ45CON-P0
RJ45 shielded connector
Grounding lug
CON-LUG-GND-1
Grounding lug one hole for 6AWG cable
Cable ties
CABLE-TIES-1
Cable Ties - Black
10
CABLE-TIES-2
Cable Ties - White
50
PVC-INS-TAPE-1
PVC Tape 4.5m, Black 19mm width, 2m
PVC-INS-TAPE-2
PVC Tape 4.5m, Green 19mm width, 2m
DC cable connector kit
IB-DCCON-0
DC Cable Connector Kit
Nut
IB-M6-NUT-0
Stainless steel M6 nut
Bolt
IB-M6-BOLT-0
Stainless steel M6 bolt
Washer
IB-M6-WSHR-0
Stainless steel M6 washer
DC cable fork lug
IB-DCLUG-FRL-0
DC Cable Fork Lug
Self-amalgamating
tape
S-AMAL-WP-TAPE-1
Self-amalgamating waterproof tape - 1m
PVC tape
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1.6.3 Verify Components
Table 6 lists the iR460 components and accessory kits.
Table 6. iR460 Components
Component
Description
Illustration
iR460
Mounting
bracket
•
PSU (DC
and AC)
•
Surge
protector
•
Waterproof
outdoor PSU
enclosure
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2 Installing iR460
This chapter describes how to install and perform the setup for the iR460 link.
It includes information on the following topics:
•
Unpacking and Examining iR460
•
Mounting the iR460 Panel Antenna Unit to a Pole
2.1 Unpacking and Examining iR460
Before you begin the iR460 install, examine the iR460 package contents carefully before making
arrangements for the professional services personnel to install the equipment. Unbox iR460 and
inspect it for any physical damage that might have occurred during transportation and storage.
Important: Any physical damage to the iR460 unit must be addressed before mounting the unit at
the site.
Verify that all other equipment including cables, tools, mounting brackets, and grounding systems are
in place for the installation.
2.1.1 iR460 Weights and Dimensions
Table 7 and Table 8 list the weights and dimensions of the product and brackets.
Table 7. Weights and Dimensions of Products and Brackets
Product and Brackets
Height (inch / mm)
Diameter (inch /
mm)
Weight (lbs / kg)
iRelay without brackets
13 inch / 330 mm
7.87 inch / 200 mm
9.85 lbs / 4470 g
iRelay together with a wall
bracket
17.20 inch / 437 mm
7.87 inch / 200 mm
10.80 lbs / 4900 g
iRelay together with a
small pole bracket
17.40 inch / 442 mm
7.87 inch / 200 mm
12.82 lbs / 5815 g
iRelay together with straps
and a 3.7 inch pole bracket
17.40 inch / 442 mm
7.87 inch / 200 mm
12.18 lbs / 5525 g
Note: The values listed in Table 7 do not include the weights and dimensions of the cables and
shroud.
Table 8. Weights and Dimensions of Brackets
Brackets
Height (inch /
mm)
Width (inch /
mm)
Depth (inch /
mm)
Weight (kg /
lbs)
iRelay wall bracket
7.13 inch /
181 mm
3.15 inch /
80 mm
0.75 inch /
19 mm
0.95 lbs / 430 g
iRelay pole bracket front
and rear parts (for poles
up to 3.7 inch diameter)
4.17 inch /
106 mm
5.63 inch /
143 mm
1.50 inch /
38 mm
2.02 lbs / 915g
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Brackets
Height (inch /
mm)
Width (inch /
mm)
Depth (inch /
mm)
Weight (kg /
lbs)
Pole bracket rear part
only
1.50 inch /
0.98 inch /
25 mm
0.53 lbs / 240 g
38 mm
4.96 inch /
126 mm
4.17 inch /
106 mm
5.63 inch /
143 mm
1.50 inch /
38 mm
1.378 lbs / 625 g
(for poles up to 3.7 inch
diameter)
iRelay pole bracket and
straps (for poles over
3.8 inch diameter)
2.2 iR460 Assembly
Figure 3 and Figure 4 show the gap required between iR460 and the mounting pole.
Figure 3: Product Dimension Envelope (Wall Mounted)
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Figure 4: Product Dimension Envelope (Pole Mounted)
2.3 Mounting the iR460 Panel Antenna Unit
When installing iR460 on a pole, mast, or lamppost, use the pole mount kit included with the iR460
unit.
Figure 5 shows iR460 mounting kit parts.
For a description of these parts, see Table 9.
Figure 5: iR460 Mounting Kit Parts
Table 9. Parts List
Item
Quantity
Description
Long bolts for connecting mounting
bracket front and back plates together
around the small pole
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Item
Quantity
Description
Mounting bracket back plate (part A)
Mounting bracket front plate (part B)
Short bolts for mounting iR460 to the
mounting bracket
The iR460 mounting kit that is designed to enable deployment on a wall or a pole contains:
•
Wall mounting bracket and short bolts
•
Pole mounting bracket part A and long bolts
•
Pole mounting bracket part B and metal straps
2.3.1.1 Mounting iR460 to a Pole
When installing iR460 on a pole, mast, or lamppost, use the pole mount kit included with the iR460
unit. Carefully select the location on the pole allowing enough clearance to align the iR460 to the
desired direction.
The following are the two types of available pole mounting kits:
•
Type A iR460 mounting kit for poles less than 3.75 inch diameter
•
Type B iR460 mounting kit for poles less greater than 3.75 inch diameter
Both contain several parts that you can assemble prior to mounting on a pole. For more information
on how to mount Type A iR460 and Type B iR460, see Mounting Type A iR460 for Metal Poles Less
than 3.75 inch Diameter, Mounting Type B iR460 for Metal Poles Greater than 3.75 inch Diameter,
and Mounting Type B iR460 for Wood Poles Greater than 3.75 inch Diameter (TBC).
2.3.1.2 Mounting Type A iR460 for Metal Poles Less than 3.75 inch
Diameter
To install iR460 on small poles (that is, poles with diameter up to 3.75 inch), use all brackets parts
except the metal bands.
1. Insert both long bolts into the bracket part A; position on the pole, fit bracket Part B, fit the
washers (form A washer and rectangular lock washer), hand tighten the nut. Position the
bracket in the correct location on the pole before fully securing.
Torque =
Make sure to place part A behind the pole.
Figure 6: Mounting Bracket
2. Slide iR460 into the pole bracket front slot.
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Figure 7: Sliding the Unit
Figure 8: Sliding the Unit (Close-Up View)
3. Make sure the bracket mounting holes are aligned and secured with the short bolts.
Figure 9: Securing the iR460 Unit
2.3.1.2.1 Torque Setting for Small Poles
Torque setting for an M8/20 SEM should not exceed 18 lb ft or 25 Nm.
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For more information, see Appendix E, Standard Torque Values – Metric System.
2.3.1.3 Mounting Type B iR460 for Metal Poles Greater than 3.75 inch
Diameter
To install iR460 on large poles (that is, poles with diameter over 3.75 inch), use all brackets parts
except part A and the long bolts.
1. Feed both metal bands through the bracket part B, then fit to the pole. Pull as much as
possible through by hand, and then press down the locking mechanism. Correctly position
the bracket on the pole before fully securing by tightening the metal bands with 10 mm flat
blade screwdriver or a spanner/wrench (16 mm).
Figure 10: iR460 Mounting Plate
Figure 11 shows the front view of the iR460 mounting bracket installed on a large pole.
Figure 11: Front View of the iR460 Mounting Plate
2. Slide iR460 into the front slot of the pole bracket.
Figure 12: Sliding the iR460 Unit
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3. Secure the unit to the bracket with the two bolts (supplied in the mounting kit). Fully secure by
tightening the screws with a spanner/wrench (13 mm).
Figure 13: Securing the iR460 Unit
Figure 14: iR460 Installed on a Large Pole
2.3.1.3.1 Torque Setting Large Poles
Torque setting for the steel bands used for mounting iR460 on a large pole should not exceed 3.7 lb ft
or 5 Nm.
For more information, see Appendix F, Torque Setting for Serratub Maxi Steel Bands.
2.3.1.4 Mounting Type B iR460 for Wood Poles Greater than 3.75 inch
Diameter (TBC)
2.3.1.5 Mounting the iR460 Panel Antenna Unit on a Wall
For wall mounting, perform the following steps:
1. Attach the mounting bracket to the wall using three fixings.
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Figure 15: Attaching the Mounting Bracket
Note: Airspan does not supply the screws. Depending on the wall material, choose
appropriate screws.
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3 Connecting and Managing the Cables
3.1 Fitting the Protection Earth Cable
1. Connect an earthing cable to the screw fixing point on the main body casting of iR460.
The earthing cable must be connected to a protection ground bar or clamped directly to the
steel structure of the power or pole. Typically, protective earthing is required in areas of high
lightning activity or when the iR460 unit is mounted on high, exposed roofs or tower
structures.
For the surge protection devices inside the iR460 unit to be effective, a direct earth
connection is required. The earthing cable must be kept as short as possible (typically 0.6m)
and the cable must be positioned downwards leading away from iR460, avoiding any sharp
bends. (The earthing lugs and screws are supplied in the IRM kit.)
Figure 16: iR460 with Earthing Connection
2. Connect the earth cable to the protection earth bar using suitable crimp lugs. Alternatively,
use a clamp to join the earth cable to the steel structure of the mounting pole or tower
structure (see Figure 17).
Note: Airspan does not supply the clamp required for this connection. Depending on the
tower structure, choose an appropriate clamp.
Figure 17: Attaching the Earth Cable to the Pole
Important: To avoid or minimize galvanic corrosion, when installing a protection earth be
sure to use the suitable metal combinations. See Figure 18. Avoid combinations above the
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red dividing line.
Figure 18: Recommended Metal Combinations
Important: Corrosion due to electrochemical action between dissimilar metals that are in
contact can be minimized if the combined electrochemical potential is below 0.6 V. Figure 18
shows the combined electrochemical potentials for a number of pairs of metals that are
commonly used. Avoid combinations listed above the red dividing line.
3.2 Lightning Protection
The use of lightning protection depends on the regulatory and end user requirements. To minimize
the risk of damage caused by the lightning strikes, iR460 is designed with built-in surge limiting
circuits. Airspan recommends to use additional surge protection devices for longs exposed cable runs
(for example—a cable over 5 m).
Additional surge protector device can be positioned at the building entry point and grounded properly,
as illustrated in the figure below.
Airspan recommends to avoid positioning iR460 at the highest point on a structure (for example—the
roof of a building, telecoms mast or tower). Ideally you should position the iR460 unit within a lightning
protected zone.
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Figure 19: iR460 with Internal POE and External Surge Protection and Grounding
Warning: Failure to meet the safety requirements and use of non-standard practices and
procedures can result in personal injury and damage to the equipment. A direct lightning strike
might cause serious damage even if these guidelines are followed.
All outdoor wireless equipment is susceptible to lightning damage from a direct hit or induced current
from a near strike. Lightning protection and grounding practices in local and national electrical codes
serve to minimize the equipment damage, service outages, and serious injury.
A lighting protection system provides a means by which the energy might enter earth without passing
through and damaging the parts of a structure. A lightning protection system does not prevent
lightning from striking; it provides a means for controlling it and preventing the damage by providing a
low resistance path for the discharge of energy to travel safely to the ground. Improperly grounded
connections are also a source of noise that can cause a sensitive equipment to malfunction.
To limit the equipment damage caused by a lightning strike to a wireless system, Airspan
recommends the following practices:
•
Provide a direct grounding from the iR460, and the lightning or surge protectors to the same
ground point at the base of the tower or a ground bus on the building. Use the grounding
screws on the iR460 unit for terminating the ground wires.
•
The AC wall outlet ground must be connected to the same grounding system as iR460.
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Figure 20: iR460 with External POE and Grounding
3.2.1 Surge Protection Specification
Table 10 lists the surge protection specification for iR460.
Table 10. Surge Protection Specification
Item
Specification
Operating Voltage
Data 5V ; POE 48V
Clamping Voltage
70V POE (All 8 Pins)
Max Surge Discharge Current
5 KA (8/20 us)
Peak Pulse Current
100 A (10/1000 us)
Protection Mode
Differential & Common Mode
Insulation Resistance
>1000 MOhm
Shunt Capacitance
< 25 pF
Data Rate
10/100/1000 Mbps
Response Time
<5 ns
Operating Temperature
-40 to +85°C
Storage Temperature
-40 to +125°C
Operating Humidity
0% to 95% non-condensing
Size (L x W x H)
4 x 1 x 1" (102 x 25 x 25mm)
Weight
3.1oz (88g)
Ground Wire
14 AWG, 10" (26cm) long
Connectors
RJ45 Shielded Jacks
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Item
Specification
IEC Standard
61000-4-5, 61643-21
3.3 Connecting PoE to iR460
The shielded CAT5e UV resistant cable coming from PoE needs to be connected to the iR460 PoE
port through a gland.
Figure 21: RJ45 Cable from PoE to the PoE Port of the Unit
3.3.1 RJ45 Pin Connections
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