Gigabit Wireless Ethernet Link

Equipment Installation Manual P/N 980-0101-001 rev0B August 14, 2008, 2008

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Copyright Notice and Disclaimer

2008, E-band Communications Corporation., All Rights Reserved.

No portion of this publication may be reproduced, copied, or distributed without the written consent of E-band Communications Corporation (EBCC). EBCC reserves the right to update or change the material of this publication at any time without notice. EBCC has made every effort to ensure that the information and the instructions contained in the publication are adequate and is not responsible for any errors or omissions due to typing, printing, or editing of this document. Purchasers of EBCC products should make their own evaluation to determine the suitability of each such product for their specific application. EBCC obligations regarding the use or application of its products shall be limited to those commitments to the purchaser set forth in its Standard Terms and Conditions of Sale for a delivered product.

This publication has been prepared for professional and properly trained personnel, and the customer assumes full responsibility when using the information herein.

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Table of Contents

1 General Information ............................................................ 51.1 Introduction ...................................................................... 51.2 Product Compatibility ......................................................... 51.3 Safety .............................................................................. 61.4 Input Power Requirements .................................................. 81.5 Regulatory Information ....................................................... 8

2 Warranty ............................................................................. 93 Product Description ........................................................... 10

3.1 E-Link Radio Family .......................................................... 104 Product Overview .............................................................. 11

4.1 Typical Applications .......................................................... 114.2 Customers ...................................................................... 11

5 Site Planning ..................................................................... 125.1 Line-of-Sight (LOS) .......................................................... 125.2 Link Distance................................................................... 145.3 Site Survey ..................................................................... 19

6 Cabling to the Radio ........................................................... 206.1 Alarm and Control Relay ................................................... 216.2 -48 VDC Power Input Interface .......................................... 226.3 Fiber Signal interface: ...................................................... 236.4 Craft Interface Connection: ............................................... 236.5 Interfacing to the RSSI Port ............................................... 24

7 Antenna Installation .......................................................... 257.1 Identify major antenna subassemblies. ............................... 267.2 Assembly of the antenna mount. ........................................ 277.3 Mounting. ....................................................................... 297.4 How to adjust Azimuth (left and right). ............................... 327.5 How to adjust the Elevation (up and down). ......................... 327.6 Radio Enclosure Mounting ................................................. 33

8 Turn on and Link Alignment ............................................... 368.1 Visually align the radios. ................................................... 368.2 Rough link alignment. ....................................................... 378.3 Fine link alignment. .......................................................... 388.4 Possible Issues encountered while aligning the link. .............. 41

9 Site Survey ........................................................................ 429.1 Planning ......................................................................... 429.2 Site Survey ..................................................................... 429.3 Site Preparation ............................................................... 43

10 Site Survey Checklist ....................................................... 45

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List of Figures Figure 1: E-Link Point to Point System ........................................... 5Figure 2: E-Link Applications ...................................................... 12Figure 3: Fresnel Zone Clearance ................................................ 13Figure 4: Americas Rain Regions ................................................. 16Figure 5: Europe/Africa Rain Regions ........................................... 17Figure 6: Asia-Pacific Rain Regions .............................................. 18Figure 7: Optical and Electrical Connections .................................. 20Figure 8: Alarm and Control Relay Plug ........................................ 21Figure 9: Alarm and Control Pinout (Wiring side) ........................... 21Figure 10: Power Input N type connector ...................................... 23Figure 11: Fiber Duplex Amphenol Cable ...................................... 23Figure 12: Antenna Subassemblies .............................................. 26Figure 13: Antenna Mounting Plate .............................................. 27Figure 14: Right Hand Offset ...................................................... 28Figure 15: Left Hand Offset ........................................................ 28Figure 16: Azimuth Adjustment Hardware .................................... 28Figure 17: Mounting Plate Attached to Pole ................................... 29Figure 18: Slip Plate Installation .................................................. 30Figure 19: Mount Antenna to Plate .............................................. 30Figure 20: Hardware Elevation Detail ........................................... 31Figure 21: Complete Mount with wrench ....................................... 31Figure 22: Elevation Adjustment ................................................. 31Figure 23: Antenna Azimuth Adjustments ..................................... 32Figure 24: Antenna Elevation Adjustments.................................... 33Figure 25: E-Link and Antenna .................................................... 34Figure 26: Assembled System ..................................................... 34Figure 27: Antenna Pattern with Side Lobes .................................. 39Figure 28: 1 ft Antenna Pattern with Side Lobes ............................ 40Figure 29: 2 ft Antenna Pattern with Side Lobes ............................ 41

1 General Information

1.1 Introduction This manual provides an overview and general introduction to E-Bands E-Link millimeterwave radio technology and provides the necessary information to coordinate the tasks associated with the process of engineering, installing and commissioning an E-band wireless communications system.

E-Bands E-Link product family provides network designers with a point-to-point broadband radio that delivers broadband wireless Ethernet IP-based services.

Requiring no server room installation, the all-outdoor ready E-Link installs quickly and delivers the lowest cost per gigabit wireless solution in the industry. E-Link is the ideal choice wherever rapid deployment of Carrier-grade Ethernet service is required.

The E-Link system consists of a radio unit and antenna Figure 1 illustrates the E-Link 1000 system.

High Band Radio Low Band Radio

-48v DC Power Supply

LC Connectors

GigE Switch or Router

LC Connectors

GigE Switch or Router

-48v DC Power Supply

(Vertical Polarization)

Figure 1: E-Link Point to Point System

1.2 Product Compatibility While every effort has been made to verify operation of this product with many different communications products and networks, E-band makes no claim of compatibility between its products and other vendors equipment. It is assumed that users have thoroughly evaluated this products performance in the communications environment in which it will be used.

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1.3 Safety The following general safety precautions must be observed during all phases of operation and service of the products covered in this manual. Failure to comply with these precautions or with specific warnings elsewhere in this manual can void the users authority to operate the equipment.

Do not stand directly in front of an energized antenna. Do not install or operate the equipment in the presence of or

close to flammable fumes or gases. E-Band radios meet all applicable FCC safety requirements for

general population exposure to radio frequency emissions; however, it is best to avoid prolonged, unnecessary exposure to the front of the radio while it is operating

Please refer to Articles 810 and 830 of the National Electrical Code, ANSI/NFPA No. 70, for installations in the U.S.A for information regarding proper grounding and applicable lightning protection for DC cables.

Outdoor equipment must be properly grounded to provide some protection against voltage surges and built-up static charges. In the event of a short circuit, grounding reduces the risk of electrical shock.

Changes or modifications not expressly approved by E-Band can void the users authority to operate the equipment.

For installations in all other countries, implement protection in accordance with the safety standards and regulatory requirements of the country where the equipment is to be installed.

1.3.1 Protection from Lightning Article 810 of the US National Electric Department of Energy Handbook 1996 specifies that radio and television lead-in cables must have adequate surge protection at or near the point of entry to the building. The code specifies that any shielded cable from an external antenna must have the shield directly connected to a 10 AWG wire that connects to the building ground electrode.

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1.3.2 Protection from RF Emissions It is hazardous to look into or stand in front of an active antenna aperture. Do not stand in front of or look into an antenna without first ensuring the associated transmitter or transmitters are switched off. Do not look into the waveguide port of an ODU (if applicable) when the radio is active.

Risk of Personal Injury from Fiber Optics DANGER: Invisible laser radiation. Avoid direct eye exposure to

the end of a fiber, fiber cord, or fiber pigtail. The infrared light used in fiber optics systems is invisible, but can cause serious injury to the eye.

WARNING: Never touch exposed fiber with any part of your body. Fiber fragments can enter the skin and are difficult to detect and remove.

1.3.3 LASER SAFETY NOTICE This product complies with CFR 1040.10 and 1040.11. The product includes a Class I laser utilized as a fiber optic driver. Class I lasers do not emit radiation at known hazardous levels.

However, it is recommended that maintenance or service personnel should never look at an open fiber end or connector that is carrying a live signal. During use, this optical fiber communications system is completely enclosed except if an accidental break occurs in the system cable, or if the patch cable becomes accidentally disconnected from the demarcation box.

There are no controls or adjustments other than power ON/OFF that may be accessed by the user.

CAUTION: Use of controls or adjustments or performance of procedure other than those specified in this Manual may result in hazardous radiation exposure.

1.3.4 CONSTRUCTION SAFETY NOTICE Note that locality has its own codes of safety and construction. Equipment installations like this must comply with these codes. It is the installer/users responsibility to understand what codes apply and to ensure that the installation conforms to these codes.

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1.4 Input Power Requirements Do not turn on power before reading E-Bands product documentation. This device has a -48 VDC direct current input at less than 100VA.

1.5 Regulatory Information This device in accordance with FCC Part 15B and Part 2, complies with Part 15 Subpart J, Part 101 Subpart Q of the Federal Communication Commission rules.

In the U. S. millimeter wave radio transmission equipment operating in the 71-76 and 81-86 GHz frequency ranges must be registered with the FCC as provided for in Part 101 of the FCC regulations.

Proper operating licenses must be obtained to operate in the U.S.

Check with your countrys wireless regulatory body for operations in your area.

For more information contact E-Band at support@e-band.com.

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2 Warranty LIMITED WARRANTY

E-Band Communications Inc. warrants to BUYER ONLY that the products will be substantially free from defects in material and workmanship for 12 months after date of shipment to Buyer. Products purchased from Seller which do not comply with the warranty and are returned to the Seller during such period will be repaired or replaced at Seller's option. Buyer may return the products, or components thereof, only with prior written authorization and assignment of a Return Material Authorization (RMA) number by Seller. Buyer will bear the cost of freight and insurance for return of goods to Seller; provided, however, that all products not eligible for repair, replacement or credit will be returned to Buyer, transportation collect. Buyer must return any such products in the original container, which shall conspicuously bear the RMA number Buyer obtains from Seller prior to return. SELLER MAKES NO OTHER WARRANTIES WITH RESPECT TO THE PRODUCTS OR ANY SERVICES AND DISCLAIMS ALL OTHER WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. The above warranty does not extend to any Product that is modified or altered, is not maintained to Seller's maintenance recommendations, is operated in a manner other than that specified by Seller, or is subject to abuse, misuse, accident, disaster, alterations, neglect or other improper treatment. Seller will make the final determination as to the existence of any cause of any alleged defect. Buyer's sole remedy with respect to any warranty or defect is as stated above. Seller neither assumes nor authorizes any other person to assume for Seller any other liability in connection with the sale of products under this contract. LIMITATION OF LIABILITY. NOTWITHSTANDING ANYTHING ELSE IN THIS AGREEMENT OR OTHERWISE, SELLER WILL NOT BE LIABLE UNDER ANY PROVISION OF THIS AGREEMENT OR UNDER ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY (A) FOR ANY AMOUNTS IN EXCESS IN THE AGGREGATE OF THE AMOUNTS PAID TO SELLER HEREUNDER DURING THE TWELVE MONTH PERIOD PRIOR TO DATE THE CAUSE OF ACTION AROSE, OR (B) FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, OR (C) FOR COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR SERVICES. USA and Canada only Some states or provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

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3 Product Description The E-Link 1000 product family is designed to provide the network operator the flexibility of providing first mile access for gigabit Ethernet networks, front haul of data for distributed antenna systems (DAS) between hosts and remotes antenna sites

Plug & Play simple installation and alignment Outdoor only solution (no Indoor unit) Interfaces: GigE or OBSAI/CPRI Optical or copper interface for Ethernet tributary Local Craft Interface based on HTML Remote management using SNMP -48 VDC Input External Alarm/Control I/O Direct slip-fit Antenna Mount Low latency 1+1 Hot-standby Protection option

3.1 E-Link Radio Family The E-Link millimeterwave radio is a point-to-point fixed wireless, ultra high capacity broadband access product operating in the upper millimeter wave spectrum from 71-76 GHz and 81-86 GHz. The E-Link carries high capacity payloads from 1,250 Mbps to 1,536 Mbps full duplex across several product models. In most locations, within the United States, the E-Link 1000 model will have 99.999% availability at roughly 1 mile. The E-Link product family deploys quickly and inexpensively.

The E-Link 1000 product family consists of the following models:

Model Data Rate Application

E-Link 1000 1,250 Mbps Gigabit Ethernet transport

E-Link 1500 1,536 Mbps

Fronthaul transport 1,536 Mbps between host and remote distributed antenna systems.

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4 Product Overview E- Link millimeter wave transmission systems provide a cost effective solution for ultra-high capacity point-to-point wireless network connections. E-Link operates in the 71-86 GHz millimeter-wave band and supports data rates from 1,250 Mbps to 1,536 Mbps in full duplex mode. Like most high frequency radio transmission systems, millimeter wave systems require line-of-sight. In the United States the operation of a radio system in the frequency range of 71-86 GHz requires a license to operate from the Federal Communications Commission (FCC). Please consult the regulatory body in your area for operating requirements.

4.1 Typical Applications There are three major applications of E-Link technology (see Figure 2):

1. Last mile access, fiber extensions and Enterprise interconnect; E-Link provides very flexible and low cost alternative to fiber optic networks for enterprises and businesses building Gigabit Ethernet IP networks for voice, data and multimedia communications.

2. Backhaul; E-Link provides solution for interconnection and backhaul of WiMax, 4G/3G mobile cellular base stations and networks.

3. Fronthaul; E-link is the only alternative to fiber when it comes to interconnection or fronthaul of distributed antenna systems (DAS) and remote radio heads (RRH).

4.2 Customers E-Bands multi-gigabit capacity products address the requirements of customers building cost-efficient wireless IP networks:

Telecommunication Service Providers (wired and wireless); Internet and Cable Service Providers; Enterprises, including TV studios, educational and health

care institutions; Government, including municipalities, military, public safety

organizations.

Figure 2: E-Link Applications

5 Site Planning Before the start of an installation a site survey should be conducted of the proposed area of the deployment of the link. The survey personnel should be fully familiar with the details required to install the E-Link radio system. Section 9 and Section 10 contain site survey process and check list to aid in determining the applicability of E-Link for your site.

E-band can also help you with the feasibility and calculate the link availability in your area. Please contact your E-band representative for link feasibility and availability support.

5.1 Line-of-Sight (LOS) The E-Link Wireless Gigabit Ethernet link requires line-of-sight (LOS) for proper operation. Binoculars and signaling mirrors or strobe lights can be used to assist in confirming LOS condition exists.

Path planning should include research into future building plans that could block the LOS path, and other long-term incremental obstructions such as tree growth, and intermittent obstructions such as aircraft possibly flying through the path should be considered. Additionally, no obstacles should be situated in the vicinity of the signal propagation line (inside the first Fresnel region).

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Because the link distances are usually within 6 miles (10 km), obstructions in the path can easily be identified using binoculars.

The characteristics of a radio signal cause it to occupy a broad cross-section of space, called the Fresnel Zone, between the antennas. Figure 3 shows the area occupied by the strongest radio signal, called the First Fresnel Zone, which surrounds the direct line between the antennas.

Because of the shape of the First Fresnel Zone, what appears to be a clear line-of-sight path may not be line-of-sight. As long as 60 percent of the First Fresnel Zone is clear of obstructions, the link behaves essentially the same as a clear free-space path. The first Fresnel zone radius is the greatest at mid-path (r).

Figure 3: Fresnel Zone Clearance Minimum Fresnel zone clearance needed for various path lengths (d) in the 71-86 GHz band is shown in Table1.

Table 1: Minimum Fresnel Zone Clearance

Path Length

Minimum Fresnel Clearance Path Length

Minimum Fresnel

Clearance 500 m 0.7 m 500 ft 1.3 ft

1000 m 1.0 m 1000 ft 1.8 ft

2000 m 1.4 m 3000 ft 3.1 ft

3000 m 1.7 m 1 mi 4.1 ft

4000 m 2.0 m 1.5 mi 5.0 ft

5000 m 2.2 m 3 mi 7.1 ft

10000 m 3.1 m 5 mi 9.2 ft

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5.2 Link Distance Measurement of the link distance is important in estimating the link availability and calculating expected Receive Signal Level (RSL). This measurement can be performed using the Latitude and Longitude coordinate readings from a Global Positioning System (GPS) device, which is placed near the proposed locations of the antennas. The GPS readings are required to comply with the FCC registration process.

The maximum usable link distance is controlled by the rain rate where the link will be located. Rain attenuation of millimeter wave signals has been the subject of numerous studies which has resulted in several mathematical models being developed to predict link availability. These models take into the account the attenuation and scattering of the millimeterwave signal during a rain event. The intensity of the rain event determines the maximum link distance based on specific link availability. The International Telecommunications Union has published charts dividing the world into various rain regions (see Figure 4, Figure 5, and Figure 6 for the charts of the world).

These charts can be used as an aid in predicting availability performance of millimeterwave transmission systems. These regions are labeled by using an alpha notation with region A having the least and region N having the highest rain rate.

Based on the rain region charts it is possible to calculate the link availability for an E-Link system in a specific rain region.

The following chart estimates the link availability for given link availability and rain region within the United States.

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Table 2: Link Distance

Region Link Distance 1 ft Antenna

Link Distance 2 ft Antenna

99.95% 99.995% 99.95% 99.995% A 4.3(mi) / 7.0(km) 2.3(mi) / 3.7(km) 7.5(mi) / 12(km) 3.7(mi) / 6.0(km)

B 3.7(mi) / 6.0(km) 2.0(mi) / 3.2(km) 6.2(mi) / 10(km) 3.1(mi) / 5.0(km)

C 3.3(mi) / 5.3(km) 1.7(mi) / 2.7(km) 5.4(mi) / 8.6(km) 2.5(mi) / 4.0(km)

D 2.8(mi) / 4.5(km) 1.4(mi) / 2.3(km) 4.6(mi) / 7.5(km) 2.2(mi) / 3.5(km)

E 2.6(mi) / 4.3(km) 1.3(mi) / 2.2(km) 4.3(mi) / 7.0(km) 2.0(mi) / 3.2(km)

F 2.4(mi) / 4.1(km) 1.1(mi) / 1.8(km) 3.7(mi) / 6.0(km) 1.7(mi) / 2.7(km)

G 2.3(mi) / 3.7(km) 1.0(mi) / 1.6(km) 3.5(mi) / 5.6(km) 1.6(mi) / 2.6(km)

H 2.3(mi) / 3.7(km) 1.0(mi) / 1.6(km) 3.4(mi) / 5.5(km) 1.5(mi) / 2.5(km)

J 2.0(mi) / 3.2(km) 0.9(mi) / 1.5(km) 3.3(mi) / 5.3(km) 1.4(mi) / 2.3(km)

K 1.8(mi) / 3.0(km) 0.9(mi) / 1.5(km) 3.0(mi) / 4.8(km) 1.3(mi) / 2.2(km)

L 1.5(mi) / 2.5(km) 0.7(mi) / 1.1(km) 2.5(mi) / 4.0(km) 1.1(mi) / 1.8(km)

M 1.5(mi) / 2.5(km) 0.6(mi) / 1.0(km) 2.3(mi) / 3.7(km) 1.0(mi) / 1.6(km)

N 1.2(mi) / 2.0(km) 0.6(mi) / 1.0(km) 2.0(mi) / 3.2(km) 0.8(mi) / 1.3(km)

P 1.0(mi) / 1.6(km) 0.4(mi) / 0.7(km) 1.4(mi) / 2.3(km) 0.6(mi) / 1.0(km)

Q 1.2(mi) / 2.0(km) 0.5(mi) / 0.9(km) 1.7(mi) / 2.7(km) 0.7(mi) / 1.1(km)

Figure 4: Americas Rain Regions

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Figure 5: Europe/Africa Rain Regions

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Figure 6: Asia-Pacific Rain Regions

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5.3 Site Survey The following equipment may be useful in conducting the survey:

Binoculars WAAS-capable GPS location device (determine latitude and

longitude of each site) Tape measure to determine distances for cable run lengths to

ingress points Digital camera (take pictures of the installation sites to reduce

the need for return visits) Site survey report form or sketch pad to document and help

assess site Signaling mirror or battery powered strobe light for determining

line-of-sight where it is difficult to determine each end of the link.

When performing the site survey that are a few important steps to follow ensuring a successful installation of the E-Link system.

1. Measure the point-to-point distance using GPS coordinates.

2. Determine the rain region the equipment will be located.

3. Ensure the antenna has sufficient path clearance. Table 1 shows the minimum path clearance required for operation of an E-Link radio.

4. Swaying vegetation or obstacles in the line-of-sight which can momentary interruptions.

5. Work activities or people passing in front of the antennas that could cause interference with the line-of-sight.

typically the radio terminal should be mounted near a roof edge mounting near roof edge reduces the chance of people interfering

with the path and reduce the chance for RF exposure safe from damage by vandals

6. Verify mounting location for the antenna is stable and vibration free.

7. Evaluate the foundation at the mounting location is not susceptible to change due to humidity or temperature variations.

8. Adequate earth ground for the equipment is available for safety and lightning protection. Refer to local and national electrical codes for proper equipment grounding.

9. Determine the location that provides safe access to the radio and a stable standing platform.

6 Cabling to the Radio Before proceeding to the alignment of the link, the installer must complete the fiber, DC power, and craft interface connections to the radio.

There are four cable connectors located on the side to the radio enclosure: a duplex LC fiber optic connector, a Binder Circular 14-pin connector for alarm and control relays, Type N RF connector for DC power and a craft interface weatherproof Ethernet RJ-45 connector.

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Figure 7: Optical and Electrical Connections

Alarm and Control relay

Craft Interface (RJ-45F)

RSSI (BNC-F)

DC Power (N Female)

GigE (Optical LC)

6.1 Alarm and Control Relay The mating male connector for the Alarm and Control Relay can be field assembled or a fixed length cable with pre-attached connector is available.

Figure 8: Alarm and Control Relay Plug

Figure 9: Alarm and Control Pinout (Wiring side)

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Table 3: Alarm and Control Relay Pinout

Signal Name Signal format, typ. voltage levels Definition /

notes

Pin # at housing circular

connector

Logic Input 1 TTL/3.3V Logic Isolated, 5V tolerant A

Logic Input 2 TTL/3.3V Logic Isolated, 5 V tolerant C

Logic Input 3 TTL/3.3V Logic Isolated, 5V tolerant E

Logic Input 4 TTL/3.3V Logic Isolated, 5V tolerant G

Logic return 0V Isolated J

Relay 1 NC Contact 48 Volts, 1 Amp max L

Relay 1 Common Contact 48 Volts, 1 Amp max M

Relay 1 NO Contact 48 Volts, 1 Amp max N

Relay 2 NC Contact 48 Volts, 1 Amp max O

Relay 2 Common Contact 48 Volts, 1 Amp max P

Relay 2 NO Contact 48 Volts, 1 Amp max R

Relay 3 NC Contact 48 Volts, 1 Amp max S

Relay 3 Common Contact 48 Volts, 1 Amp max T

Relay 3 NO Contact 48 Volts, 1 Amp max U

6.2 -48 VDC Power Input Interface The power input to the radio is a type N connector located on the enclosure. A mating solder type male Type N connector is supplied with the Installation kit for the radio. The wiring for the connector is the -48V. The lead is the center pin with the positive outer shield.

Figure 10: Power Input N type connector

6.3 Fiber Signal interface: A duplex Amphenol female LC terminated fiber optic connection is the standard interface for the E-Link radio. For applications using the Gigabit Ethernet standard, it is recommended the customer use Single Mode 1310nm. Multimode 850nm fiber is available.

Figure 119 illustrates the required LC fiber plug to be used with the fiber outlet shown in Figure 75: Optical and Electrical Connections located on the ring of the radio enclosure. A preassembled weather resistant cable is available with the required connector on one end terminated with a standard LC male on the other end. Using pre-terminated cable will ensure a weatherproof connection.

Radio End

Figure 11: Fiber Duplex Amphenol Cable

6.4 Craft Interface Connection: When the hardware installation is complete, the units are ready to be configured using either a workstation or laptop running an HTML web browser. Initial setup of the radio terminal is through the use of the Craft RJ-45 port located on the ring of the radio closure. When connecting directly from a workstation or laptop an Ethernet crossover

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cable is required. If connecting to a switch or hub prior to connecting to the radio a straight through cable is needed. EBCC has verified User Interface operation with Microsoft Internet Explorer 7 and Mozilla Firefox 2 (Windows OS only supported). The easy-to-use browser based user interface (UI) allows configuration of the physical interface, display link status, set passwords, obtain statistics, and perform maintenance operations. At a minimum, the user should ensure that passwords and other security parameters are appropriately set.

After logging on, the Status screen will be displayed. The navigation bar across the left side of the screen provides links to the various management functions:

The Status page shows basic unit information including model and serial numbers, as well as the current state of the unit and its physical interfaces. Green, yellow and red status indicators (Stop Light motif) provide a quick visual summary of the terminals operating condition. Under normal operating conditions, the indicator should be green. Red indicator signifies a unit failure, unconnected network interfaces, or abnormal operating conditions. Yellow indicator signifies marginal operating conditions, which may impact unit operation. The displayed information is updated with every refresh of the Status page. Refresh of the page is automatic or a manual update can be requested by clicking on the browsers refresh button.

6.5 Interfacing to the RSSI Port The RSSI (Received Signal Strength Indicator) voltage is a measure of received signal strength which is used in addressing link alignment. To measure the RSSI voltage, remove the weather cap from the BNC connector labeled RSSI, refer to Figure 75. Connect a Fluke DMM Series 77 or similar to the BNC connector and note the RSSI voltage read provides of the correlation between volts and receiver signal level in dBm. Appendix 1 provides a correlation graph of RSSI voltage vs. Receive Signal Level in dBm.

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7 Antenna Installation The E-Link antennas are shipped in one box containing the following components:

1. Antenna assembly

2. Mini-mount kit

Note: Options and accessories are shipped separately and include separate installation guides. Check the packing slip.

Tools Required:

1. 3/8 Open/box wrench or socket wrench

2. 9/16 Open/box wrench or socket wrench

3. Adjustable Wrench

4. Torque Wrench with appropriate sockets NOTE: The pictures provided in this document are for illustrative purposes only and may not be identical to your antenna system. WARNINGS AND CAUTIONS: 1. Read these instructions before beginning installation. Caution should

be used. Qualified persons experienced with antenna assembly and installation are required for installation.

2. E-Band Communications Corporation disclaims any responsibility or liability for damage or injury resulting from incorrect or unsafe installation practices.

3. The reflector has been formed to a very close tolerance parabolic shape. Careful handling and assembly is required to avoid denting the reflector, which would degrade antenna performance.

7.1 Identify major antenna subassemblies.

Antenna Mounting plate with associated hardware installed.

Lower Pole Mount Assembly with Azimuth Adjust Shaft and associated hardware.

3/8-16 Hardware to attach antenna to mount.

Upper Pole Mount Assembly with associated hardware.

Figure 12: Antenna Subassemblies

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7.2 Assembly of the antenna mount.

7.2.1 Attach the upper pole mount

Figure 13: Antenna Mounting Plate

Align pin in plate with hole on mountTop of mounting

plate indicated by Elevation

Confirm that the mount is centered as shown. Tighten bolts

Note: Mounting plate may use a shoulder bolt instead of pin. Do not tighten bolt until final alignment is achieved.

Attach the upper pole mount to the top of antenna mounting plate using hardware supplied with plate.

Right hand offset is shown in Figure 1310, for left hand offset rotate mounting plate 180.

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Figure 14: Right Hand Offset Figure 15: Left Hand Offset

Rod on bottom

Adjustment nut on top

Adjustment nut on bottom

Rod on bottom

Adjustments to the antenna may be necessary for Left hand offset mounting, refer to additional instructions for your antenna model.

7.2.2 Attach the lower pole mount to opposite side of plate as shown in Figure 1310.

Figure 16: Azimuth Adjustment Hardware

Hardware sequence: Flat washer (between mount and rod) bushing (fits inside rod end), flat washer, lock washer, bolt.

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7.3 Mounting.

7.3.1 Fasten the antenna mount to a 4.5 (typical) mounting pole. Position plate so that the face of the mounting plate is parallel to desired beam path.

Figure 17: Mounting Plate Attached to Pole

IMPORTANT: Do not loosen the 4 bolts securing the upper and lower mounting brackets

Use the flat washer, lock washer, and nut provided for each lock bolt.

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7.3.2 Attach Slip Plate between pole mount and antenna per figure below.

Note: Mounting plate may use a shoulder bolt instead of pin. Do not tighten bolt until final alignment is achieved.

Slip Plate

Figure 18: Slip Plate Installation

7.3.3 Align the center hole of antenna with pivot pin, and elevation slot with elevation pin.

Pivot Pin

Elevation Pin

Slip Plate

Pole Mount

Antenna

Figure 19: Mount Antenna to Plate

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7.3.4 Push antenna towards mount ensuring slip plate is in place while engaging pins. Hold in place.

7.3.5 While supporting antenna install 2 each 3/8 -16 bolts with washers as shown through mounting plate and into antenna tighten securely.

Figure 20: Hardware

Elevation Detail

Figure 21: Complete Mount with wrench

Figure 22: Elevation

Adjustment

Secure (2) x 3/8-16 Bolts, LockWashers, Flat Washers and Nylon Washers attach antenna to Alignment Plate.

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7.4 How to adjust Azimuth (left and right).

Figure 23: Antenna Azimuth Adjustments

1. Loosen the 4 Azimuth lock bolts

1. Adjust eyebolt length using a 9/16 open-end wrench to required position.

3. Secure the 4 Azimuth lock bolts (tighten until lock washers are flattened).

7.5 How to adjust the Elevation (up and down). CAUTION! It is very important that the azimuth bolts are tightened before any elevation adjustment is done. The very narrow beamwidth of these antennas makes it necessary to completely tighten the bolts of the azimuth adjustment while adjusting the elevation and vice versa.

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2. Rotate Elevation Adjust Hex nut as require to set correct elevation. Adjustment is easier when adjusting beam upward. Drive antenna down past desired location and adjust while driving antenna up.

1. Loosen (2) antenna mounting bolts slightly so antenna is able to move. Loosening bolts excessively will cause difficulty during the alignment

Figure 24: Antenna Elevation Adjustments

When the antenna orientation is satisfactory recheck all hardware and torque to 15 lb-ft (203.3 N-m).

7.6 Radio Enclosure Mounting The Antenna Mount Bracket and Antenna as shown in Figure 2522 is mounted to the pole. Supplied with the antenna is a small tube of silicon lubricant. Apply a small amount to the rubber O-ring located on the antenna feed. By applying this grease will aid in sliding the RF unit to the antenna and help seal against moisture from entering the feed.

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Slide the E-Link terminal with the handle either up or down for Vertical polarization with the circular feed assembly of the antenna and connect the four captive latches/bales and snap into locked position as shown in Figure 2522 and Figure 2623.

Note: Latches shown in open position

Figure 25: E-Link and Antenna

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Figure 26: Assembled System

E-Link Terminal 1 ft Antenna with radome

Captive latch in open position

Antenna Feed

Handle H Pole E-Link Terminal

Closed Latch

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Note: Drape cables with drip loop to keep water from collecting around connectors. CAUTION! It is critically important during installation to ensure the radios on each side of the link are in the same polarization (vertical-vertical or horizontal-horizontal). That is, a link has a radio on one end of the link set in the vertical polarization and the other side of the link set in the horizontal polarization will not operate properly. Furthermore, it is critically important that a high-band radio is paired with a low-band radio to ensure the system will operate properly. Prior to installation verify each radio is a high-band and the other is a low-band version. Vertical is the default polarization. The label on the radio indicates the high or low band. Note: It is recommended that personnel be present at both ends equipped with either two-way radios or cell phones for communication and the installers should allow at 1 hour to optimally align the link.

Note: Handle orientation determines polarity. Up is horizontal, left/right is vertical.

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Turn on and Link Alignment

7.7 Visually align the radios.

Visually align the radios to each other. Be as accurate as possible. The beamwidth of the signal is approximately 0.9 degrees for the 1 ft (0.3m) and 0.4 degrees for the 2 ft (0.6m), which is approximately equivalent to an index finger width when the arm is fully extended. Align as closely to the center of the main lobe as possible. Loosen the pole mount bracket enough to allow the unit to be swung horizontally with only slight resistance to movement (azimuth).

Visually align one end of the point-to-point link. Repeat this procedure for the other end; an aid in aligning longer paths where it may be difficult to see the other end of the link use of a small mirror or strobe light to flash the location.

This concludes the visual alignment steps.

Caution! Lightning protection is required by the EBCC Warranty Statement. Failure to provide proper lightning protection can result in the Product Warranty being void. Lightning protection regulations and standards for proper protection are covered under the national or regional electrical safety codes such as the National Electrical Code in the United States. Follow your national or regional electrical safety codes! The outdoor components are to be grounded, and lightning arrestors are to be connected in accordance with local, regional and national codes. All local building and electrical codes specified by local civil authorities must be followed. Standard safety procedures for installing and working with this type of equipment must also be followed.

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7.8 Rough link alignment.

7.8.1 Do not connect tributary fiber cable until link is aligned.

7.8.2 Connect a DVM to the RSSI BNC connector on the RF Unit at each end of the link. The RSSI will vary between 0 and 5V with increasing RSSI resulting in an increasing voltage.

7.8.3 Verify -48 VDC power is connected to each radio and the radio is powered.

7.8.4 Configure one end of the link in Loopback (configured using the UI) or connect a LC fiber jumper from Optical Input to Optical output. At the coordinating location enable the internal BERT function. Refer to User Interface manual for additional information on this function.

7.8.5 Loosen the pole mount brackets enough to allow you to swing the unit horizontally.

7.8.6 Reference Figure 2320 and Figure 2219 for illustration of antenna mount bolts and their purpose.

7.8.7 If you can see the far-end radio terminal estimate the alignment visually and tighten the pole mount brackets with fine adjustment bolt set to the middle of adjustment range.

7.8.8 Ensure the horizontal adjustment bolts are snug; only tighten bolts one quarter of a turn.

7.8.9 Slightly rotate each antenna up/down for best vertical alignment and left/right for best horizontal alignment by finding the maximum RSSI voltage reading.

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7.8.10 To ensure that the antennas are not aligned on a side-lobe, they must be rotated at least ten degrees on each side of the visually-perceived alignment center to ensure that the true maximum RSSI voltage is found.

Table 4: Antenna Beam Width

Antenna Size Main lobe Beamwidth 1st Side lobe

1 ft (0.3m) 0.9 1.5

2 ft (0.6m) 0.4 1

7.8.11 Set the antenna in the position that result in the highest RSSI voltage.

7.8.12 Repeat alignment steps on the far end radio.

7.9 Fine link alignment.

7.9.1 Loosen the 4 each Azimuth Lock bolts so the mounting plate can move. Failure to loosen the bolts before adjusting will result in damage to the mount.

7.9.2 Adjust mounting plate using eyebolt and nuts to drive antenna to the peak RSSI indicated on the voltmeter. Swing antenna through the main lobe and out through the 1st right and left side lobe. Return to the main lobe as indicated by the RSSI value.

Note: It may be necessary to reduce the transmit power level during link alignment in each radio. This will keep the RSL at the distant radio from saturating the Receiver which causes the RSSI to be near its maximum value on short links reducing the accuracy of aligning to the main lobe of the antenna. In addition, by monitoring the bit error rate of the link using internal BERT will significantly reduce the possibility of aligning the antennas to a side lobe.

7.9.3 Tighten down the azimuth adjustment bolts.

7.9.4 Loosen the two (elevation) bolts slightly holding the antenna to the antenna mount. Excessively loosening these bolts will cause difficultly during alignment. Caution failure to loosen these two bolts before adjustment will cause damage to the mount.

7.9.5 While monitoring the RSSI voltmeter and built-in BERT, begin Elevation adjustment by rotating the Elevation Adjustment Nut. Alignment is obtained by monitoring for peak RSSI and minimum BER. Again, swing the antenna through the main lobe and proceed to 1st side lobe (confirming the alignment is on the main lobe). Then lock down the 2 elevation bolts when the RSSI is peaked and minimum BER is achieved.

7.9.6 Repeat procedure at remote end.

7.9.7 It may be necessary to repeat the procedure at both ends of the link obtaining the optimum signal strength and minimum bit error rate.

Figure 27: Antenna Pattern with Side Lobes

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Peak gain

Side lobes

Figure 28: 1 ft Antenna Pattern with Side Lobes

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Figure 29: 2 ft Antenna Pattern with Side Lobes

7.9.8 Tighten the bolts to lock the antenna in place.

7.9.9 Always evenly tighten the bolts in small increments at a time ensuring minimum change to the completed alignment.

Note: While tightening the bolts continue monitoring the RSSI and BER values confirming the antenna(s) remain aligned.

7.9.10 Set link to normal operating mode: a. Remove fiber jumper from RF Unit

b. Set radio to standard operating mode. This may be accomplished through the UI or briefly power cycling the radio terminal.

c. Connect the optical cable from the network equipment.

The link is now operational.

7.10 Possible Issues encountered while aligning the link. The RSL level should be within 3 dB of predicted levels.

Factors that contribute to low RSL levels are:

a. Incorrect antenna alignment - aligned to side lobe and not main lobe.

b. Improper polarization of antennas - horizontal vs. vertical.

c. Path issues.

i. Obstructions such as trees, hills, or buildings within the beamwidth

ii. Path clearance issues such as diffraction, partial obstruction, and earth curvature.

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8 Site Survey

8.1 Planning When installing an E-Link 1000 radio, proper link and site planning is required.

E-band can assist in feasibility and link availability analysis. Please contact your E-Band representative for support. The following items should be addressed during the planning process: RF path engineering Site preparation, including power, tributary, and management

connections Installation issues for E-Link Radio Unit Link licensing including frequency coordination (FCC etc.) Check local, regional, and national building and electrical codes Lightning and ground protection Surge protection Outdoor cabling requirement

8.2 Site Survey A site visit must be done prior to installation ensuring that proper line-of-sight path clearance exists and that the necessary facilities exist at the site as listed below.

LineofSight and Path Clearance: Determining the optimum location for the radio. The radio and antenna location are important to ensure optimum radio range: Install the antenna as high as possible to maximize the range of a

building-to-building connection Maintain a clear lineofsight between E-Link antennas.

Obstructions can impede performance and reduce signal strength. Maintain maximum path clearance at both ends of the link. When

determining maximum path clearance, be aware of objects that restrict performance such as: Buildings Trees Rooftop objects such as air conditioning and heating (HVAC)

units; Reflective surfaces

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8.3 Site Preparation During the site visit, be sure to record all installation requirements including taking pictures of the site.

It will be necessary to determine the following:

Other equipment in the area which can potentially interfere with the E-Band radios

Ability to install the E-Link radios. Pole with a diameter between OD of 2.25 4.5 inches for

mounting E-Link and Antenna A mast or tower mount exists and is there sufficient room

(clearance) to install the unit The mast or tower has the ability to withstand wind load due

to mounting of the E-Link Radio Unit + Antenna Permits that may be required Documentation required by building or site owner/landlord.

Obstructions, such as tree growth or new buildings that may be a

problem in the future.

The tributary, power, and alarm cables may have to penetrate the outside wall and terminate on customer supplied equipment located inside the building.

Determine the following:

Cable distance between E-Link, network equipment, and the distance to the DC power source.

Location of building penetration point (drainage or service openings, elevator service sheds, other rooftop openings, or a new penetration through an outside wall).

Size (diameter) of hole at the building access point. Check for other cables and clearance for E-Link cables.

Location of the nearest AC power outlet if AC to -48 VDC Power Supply is used for powering the radio

a. Location of the nearest ground bar or ground plane bus

b. Power backup, such as Uninterruptible Power Supply (UPS)

c. Location and ease of access to wiring closets

d. Location and ease of access of network equipment (switch, router, etc)

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e. Grounding points for lightning arrestors and cable shields at building entry point

f. Locations and grounding points for surge protectors.

g. Check local electrical codes for requirements for lightning rods.

h. If possible, ensure that the E-Link installation is lower in height than the existing lightning rods

Note: Record all installation requirements, including cable lengths, GPS co-ordinates (elevation, latitude, longitude) and distance between the sites.

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9 Site Survey Checklist

SITE SURVEY CHECKLIST Customer: Date: Contact Names: Address:

Telephone No.

Site Characteristics Site Name: Site Designation (CLLI): Address:

GPS Coordinates: Degrees Minutes Seconds Latitude (N or S) Longitude (E or W) Ground Elevation (AMSL) Distance Between Terminals Azimuth Line-of-Site (Yes / No)

Link Characteristics Transmit Frequency (High/Low Polarization)

Receive Frequency Transmit Power dBm RSL dBm Antenna Size 12 in / 0.3m or 24 in / 0.6m Antenna Height

Site Access

Roof Or Tower Yes No

Roof Access Door Permit Require

Roof Penetration Ladder Required

Access Keys Required Wall Penetration

On Site Escort Required Who is Escort:

Special Tools Required List Tools:

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Tripod Mount Type:

Pole Mount (tower) Antenna mount stable against effects of wind

loading, vibration, temperature changes

Mount must be able to maintain alignment over temperature, wind loading, and vibration

SITE SURVEY CHECKLIST

Other Pipe Mount Size

Terrain Considerations Path Obstructions

Other Considerations Power Availability

Available Power (Voltage and Current) Note: Do not mount radio equipment in the proximity of machinery that can either generated large electromagnetic fields or large voltage spikes as they cycle On/Off (i.e., air conditioners, elevator motors). Yes No Comments AC Power on Roof Specify: Volts Hz AC Surge Suppressor Required

Type:

AC Power Fused -48 VDC Power Available

Radio requires -48 VDC

Lightning Rod higher than Radio Equipment?

Earth Ground Available

Distance from Radio to Ground Point:

Identify Location and Distance to Available AC or -48 VDC power Source from expected radio mounting location

Notes:

Is Radio Tributary Optical or Electrical

If Optical MM or SM Electrical max length is 100 meters

Identify Location and Distance to Network Equipment (1.25 Gbps signal) to customer point of

If Electrical (Cu) maximum Cat5e length is 100m

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presence.

Sketch/Photos of Equipment Cable Run Show access points (Sketch) Yes No Is Plenum Rated Cable(s) required

Length:

Is Pull Rope Installed in Conduit

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SITE SURVEY CHECKLIST

Customer Date Site Name

SKETCH OF EQUIPMENT AND SITE

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