Loea Corporation L2700 User manual

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone]
www.loeacom.com
USER MANUAL
L2700 Millimeter-wave
Point-to-Point Radio
Version 1.0
August 15, 2007

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
2
Table of Contents
GENERAL SAFETY NOTICES................................................................................................. 4
1. OVERVIEW.......................................................................................................................... 6
1.1 DESCRIPTION.................................................................................................................. 6
1.2 L2700 COMMON APPLICATIONS AND FEATURES.......................................................... 6
2. INSTALLATION PROCEDURES ..................................................................................... 9
2.1 INTRODUCTION............................................................................................................... 9
2.2 STANDARD LINK COMPONENTS..................................................................................... 9
2.3 GENERAL INSTALLATION REQUIREMENTS ................................................................. 10
2.4 CONSTRUCTION OF STEERING SYSTEM (PART NUMBER MT-24) .............................. 11
2.4.1 Assemble Azimuth and Elevation Control Arms (see Figure 3) .......................... 11
2.4.2 Assemble Antenna Mount Plate and Azimuth Arms (see Figure 4)..................... 12
2.4.3 Assemble Antenna Mount Plate and Pole Plate (see Figure 5) ............................ 12
2.5 ATTACH ASSEMBLY TO MAST AND ATTACH ANTENNA (SEE FIGURE 6).................... 14
2.6 ATTACH TRANSCEIVER TO STEERING SYSTEM (SEE FIGURE 7)................................. 15
2.7 CABLING TO THE RADIO (SEE FIGURE 8)..................................................................... 16
2.8 INTERFACING TO RSSI PORT (SEE FIGURE 13)........................................................... 23
2.9 ALIGNMENT TECHNIQUES (SEE FIGURE 15)................................................................ 25
2.10 VERIFICATION OF BIT ERROR RATE (BER)................................................................ 26
2.11 FINAL SYSTEM COMMISSIONING................................................................................. 27
3. SYSTEMS INTEGRATION.............................................................................................. 28
3.1 STANDARD SYSTEM DEMARCATION BOX REQUIREMENTS......................................... 28
3.2 BASIC INFORMATION ON LOEA INTERFACE................................................................ 28
3.3 LINK MONITORING ...................................................................................................... 29
3.3.1 Network Management System Operation............................................................. 29
3.3.2 NMS Data Transfer............................................................................................... 29
3.4 RS-232 SERIAL LINK INTERFACE................................................................................ 30
3.5 GROUNDING PROCEDURES........................................................................................... 34
3.5.1 Single Point Grounding......................................................................................... 34
3.5.2 Rack Cabinet Grounding....................................................................................... 36
3.5.3 An Effective Earth Ground................................................................................... 37
3.5.4 At the Tower......................................................................................................... 38
3.5.5 Conclusion ............................................................................................................ 39
APPENDIX A - FIELD SERVICE FORM .............................................................................. 41
APPENDIX B – LIST OF SNMP MIB GROUPS ................................................................... 43
APPENDIX C –EXAMPLE OF INSTALLING THE L2700 MIB........................................ 46

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
3
List of Figures and Tables
FIGURE 1. TYPICAL L2700 APPLICATIONS....................................................................................... 7
FIGURE 2. L2700 WITH 2FOOT ANTENNA........................................................................................ 8
FIGURE 3. AZIMUTH AND ELEVATION CONTROL ARMS. ................................................................ 11
FIGURE 4. ASSEMBLY OF ANTENNA MOUNT PLATE AND AZIMUTH CONTROL ARMS. ................... 12
FIGURE 5. ANTENNA MOUNT PLATE AND POLE PLATE ASSEMBLY................................................ 13
FIGURE 6. ATTACHING ASSEMBLY TO MAST AND ATTACH ANTENNA........................................... 14
FIGURE 7. ATTACHING TRANSCEIVER TO STEERING SYSTEM......................................................... 15
FIGURE 8. INSIDE RADIO SERVICE COMPARTMENT........................................................................ 16
FIGURE 9FEMALE AC POWER RECEPTACLE.................................................................................. 17
FIGURE 10. EXAMPLE OF DC POWER CONNECTION USING RG6 CABLE......................................... 18
FIGURE 11. INSIDE THE RADIO SERVICE COMPARTMENT............................................................... 19
FIGURE 12: TYPICAL LC DUPLEX MALE CONNECTOR................................................................... 20
FIGURE 13: TYPICAL PLUGGABLE GBIC........................................................................................ 20
TABLE 2A:SINGLE-MODE FIBER OPTIC INTERFACE SPECIFICATION............................................... 21
TABLE 2B:MULTI-MODE FIBER OPTIC INTERFACE SPECIFICATION................................................ 22
FIGURE 14. RADIO REAR COVER REMOVED SHOWING SERVICE COMPARTMENT. ......................... 23
FIGURE 15. TYPICAL RSSI CHART ................................................................................................ 24
FIGURE 16. ALIGNMENT TECHNIQUE............................................................................................. 25
FIGURE 17. ANTENNA PATTERN WITH SIDE LOBES........................................................................ 26
FIGURE 17. MAIN MENU AS SHOWN IN (WINDOWS)HYPERTERMINAL. ........................................ 31
FIGURE 18 MAIN MENU OPTION ISHOWS IP ADDRESS FOR RADIO. ............................................... 32
FIGURE 19. MAIN MENU OPTION SWITH SETUP MENU OPTIONS................................................... 33
FIGURE 20. SINGLE POINT GROUNDING ......................................................................................... 35
FIGURE 21. TWO METHODS OF SINGLE POINT GROUNDING .......................................................... 35
FIGURE 22. EARTH GROUND ......................................................................................................... 37
FIGURE 23. TOWER GROUND......................................................................................................... 38
FIGURE C1. EXAMPLE OF SNMPC MANAGEMENT CONSOLE SCREEN............................................ 47
FIGURE C2 SNMPC MIB BROWSER SELECTION........................................................................... 48
FIGURE C3 SNMPC MIB BROWSER. ............................................................................................. 49
FIGURE C4. SNMPC ‘SYSTEM’FOLDER SELECTION...................................................................... 50
FIGURE C5. SNMPC ‘SYSCONTACT’, ‘SYSNAME’AND ‘SYSLOCATION’DATA ENTRY.................. 51
FIGURE C6. SNMPC SELECTION OF LOEA FOLDER AT BOTTOM OF ‘PRIVATE’FOLDER LIST........ 52
FIGURE C7 THE ‘LOEA’FOLDER SHOWING 5DIFFERENT LOEA MIB GROUPS................................ 53
FIGURE C8. INDIVIDUAL SNMP VARIABLES FOR GROUP............................................................... 54
FIGURE C9. THE SYSTEM GROUP ICSYSGROUP............................................................................ 55
FIGURE C10. THE INTERNAL GROUP LCINTGROUP:....................................................................... 56
FIGURE C11. THE FIBER GROUP LCFIBGROUP:............................................................................. 57
FIGURE C12. THE RF GROUP LCRFGROUP:.................................................................................. 58
FIGURE C13. THE TRAP CONTROL GROUP LCTCGROUP:.............................................................. 59

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
4
GENERAL SAFETY NOTICES
FCC NOTICE
This equipment complies with the FCC radiation exposure limits set forth for an uncontrolled
environment when installed as directed. This equipment should be installed and operated with
fixed mounted antennas that are installed such that these antennas will have a minimum of 2m of
separation distance between the antenna and all persons during normal operation.
This device complies with Part 101 of the FCC Rules.
This device is labeled with the following FCC ID number:
S2N-L2700-2
PROFESSIONAL INSTALLATION REQUIRED
The L2700 must be installed as a system by experienced antenna installation professionals who
are familiar with Radio Frequency (RF) issues such as gains and losses, as well as local building
and safety codes. Failure to do so will void the product warranty and may expose the end user to
excessive RF hazard.
Regulations regarding maximum antenna gains, power output and maximum permissible
exposure vary from country to country. It is the responsibility of the end user to operate within
the limits of these regulations and to ensure that the professional installers who install this device
are aware of these regulations. All antennas are intended to be installed outdoors.
MICROWAVE RADIO RADIATION WARNING
When installed properly, this product complies with the limits for human exposure to radio
frequency (RF) fields adopted by the Federal Communications Commission (FCC). The product
is designed so that under normal working conditions, microwave radiation directly from the
transceiver is negligible when compared with the permissible limit of continuous daily exposure
recommended in the United States by ANSI/IEEE C95.1-1991 (R1997), Safety Levels with
Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3kHz to 300GHz.

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
5
Microwave signal levels that give rise to hazardous radiation levels can exist within transmitter
power amplifiers, associated RF multiplexers, and antenna systems. Do not disconnect RF
coaxial connectors, open microwave units, or break down any microwave screening while the
radio equipment is operating.
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.
CONSTRUCTION SAFETY NOTICE
Note that every area of the country has its own codes of safety and construction. Installations
like this must comply with these codes. It is the installer/user’s responsibility to understand what
codes apply and to ensure that the installation conforms to these codes.

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
6
1. Overview
1.1 Description
The L2700 is a point-to-point, fixed wireless, ultra-broadband access product which operates in
the licensed upper millimeter wave spectrum from 71.0-86.0GHz. The L2700 can carry high
capacity payloads (up to 1.25Gbps- full duplex) with high availability in all weather. In most
locations in the United States, the L2700 will have 99.999% weather availability at roughly 1.6
kilometer. It deploys quickly and inexpensively with proper planning and preparation as
outlined in this manual. Loea RF products are intended for installation by professional Loea
certified installers only.
1.2 L2700 Common Applications and Features
The L2700 is a last mile access solution and a replacement for buried/aerial fiber cable such as
wireless backhaul, last mile access and LAN/WAN extensions.
The L2700 is rapidly deployable and re-commissionable making it an ideal solution for
temporary bandwidth or for emergency situations that could cause an interruption to buried
technologies.
In short, most applications of fiber cable in the last mile are potential applications for the L2700.

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
7
Figure 1. Typical L2700 Applications.
Product Features:
•Operation in the Part 101 licensed 71.0-76.0GHz & 81.0-86.0GHz band.
•FCC and NTIA certified
•Standard LC fiber optic interface
•110V AC power, 50W peak consumption
•-48 Volt telecom standard DC power (option)
•19 dBm peak output power – OOK Modulation
•All weather performance
•OSI Layer 1 data transmission
oInteroperable with most fiber optic COTS switch, router and encryption devices.
oPlug and play with existing networks.
•Secure Transmission and narrow beam widths
oLow Probability Intercept and Low Probability Detection (LPILPD)
oCo-existence of many users with low likelihood of interference
•Operating Temperature from -20C to +50C

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
8
Figure 2. L2700 with 2 Foot Antenna

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
9
2. Installation Procedures
2.1 Introduction
This manual provides basic instructions on the assembly, alignment and verification of the Loea
L2700 system. In doing so, it outlines recommended tools and processes to use. A detailed
understanding of this manual and participation in a Loea training class is highly recommended
prior to starting any work on site. Only Loea Trained and Certified installers should perform
installation services on the L2700.
Please note that every area of the country has its own codes of safety and construction.
Installations must comply with these codes. It is the installer/user’s responsibility to understand
what codes apply and to ensure that the installation conforms to these codes.
2.2 Standard Link Components
Description Part # Comments
Transceiver Pair L2700-XYZV Radio Pair Only
2’ antenna A24-FCM Two (2) Antenna’s required for a link
Steering Mechanism MT-24 Two (2) Steering Mechanisms required for a link
Table 1 – Basic L2700 Components
Part Number Format
L270N – X Y Z V
X – Orientation
V = Vertical
H = Horizontal
Z – Optical Interface
S = 1310nm
M = 850nm
Y – Payload Standard
A = GIGE (1.25Gbps - full
duplex)
B = OC12 (622Mbps – full
duplex)
C = 1.42Gbps – full duplex
V – Input Power
A = 110V (nom) AC
B = -48 V (nom) DC
N – Terminal Config
0 = Complete link
7 = Tx at 73.5GHz
8 = Tx at 83.5GHz

L2700 User’s Manual
DU002700-01 8/15/2007
Loea Corporation
733 Bishop Street, Suite 1717
Honolulu, HI 96813
Phone: [phone]
Fax: [phone] www.loeacom.com
10
2.3 General Installation Requirements
Before the installation of a Loea link, certain steps must be taken to ensure that the installation
will be successful.
A. Site Survey: During a site survey a certified Loea surveyor can assess the
environment of the installation, ensure that the physical conditions of the site are
appropriate, indicate where building connections need to be available and ensure that
Line of Sight (LOS) exists between the two end points.
B. FCC Part 101 License: Loea’s band of operation is licensed by the FCC for non-
federal government users and by the NTIA for federal government and DOD users.
Prior to deployment, a license is required. For more information on obtaining a
license for operation of this radio in the 70 and 80 GHz bands see
http://wireless.fcc.gov/services/millimeterwave/ and select the “nationwide license”
link. There is an application form and information pertaining to current license fees
at this site. If you are a federal government user, your spectrum officer should be
able to get a license with our J/F12 number 8138. Please contact Loea directly with
any questions.
C. Installation of Mast and Demarcation: A standard 4in mast (4.5in O.D.) must be
installed at a position and specific height as specified in the Site Survey. To facilitate
connection to the building’s network; fiber for communications, 110V AC (Required
UPS -Cyber Power UPS Model #CPS625AVR or equivalent for AC mode) or
optional -48VDC, and optional Ethernet for monitoring are required in a demarcation
box per the specifications in this manual and specifically as defined in the Site
Survey.
D. Bench Test: Loea recommends that the transceivers be tested after delivery to the site
and prior to installation on the mast to ensure that no damage occurred during
shipping and to familiarize customer with radio operation. To perform a bench test:
a) Separate the transceivers by approximately 5 feet on a wooden or non-metallic
surface without the antennas attached. Align the radios so that the feed horns are
in the same RF orientation (to do this situate the radio housing so that the conduit
hole on each radio is pointing upward) and pointed directly at each other with
absorber material between the feed horn. When user can verify an RSSI
(Receive Signal Strength Indicator) value a link has been established. Then when
BER performance is verified the link is functional. See reference Sections 2.7,
2.8 and 2.9.
b) If possible, a complete end-to-end test is recommended with switching and/or
encryption devices. The L2700 is generally a plug and play device, it is
recommended to do this to avoid de-bugging in the field.
E. System Commissioning: Upon install completion, metrics from the install site must
be recorded and verified to ensure that the transceivers are performing as expected.
The “Loea Field Service Data” form (see Appendix A) should be forwarded to Loea
following the installation. This will assist Loea’s technical service and help desk
personnel assess problems should a link fail to operate. It is also recommended that
the end user/owner keep a copy for their records.