FCC ID: P57-FL60-1250 Microwave Transceiver Units

Telaxis Communications Corp. Model(s): FL60-1250(-AL1 & -BL1) FCC ID: P57-FL60-1250 RTL WO#: 2002218 Report Date: February 13, 2003 Rhein Tech Laboratories, Inc. 360 Herndon Parkway Suite 1400 Herndon, VA 20170 http://www.rheintech.com APPENDIX I: MANUAL Please see the following pages. Page 49 of 55 Model FL60-1250 FiberLeap Access Unit Installation and Operation Manual Telaxis Communications 20 Industrial Drive East South Deerfield, MA 01373 USA 413-665-8551 www.fiberleap.com Dwg #5031597401 Rev B Table of Contents 1 SERVICE................................................................................................................................ 3 2 WARRANTY ......................................................................................................................... 3 3 OVERVIEW ........................................................................................................................... 4 4 INSPECTION AND UNPACKING....................................................................................... 6 5 GETTING STARTED ............................................................................................................ 6 INSTALLATION ................................................................................................................... 8 6 6.1 Positioning the mast Mount Assembly ............................................................................... 8 6.1.1 Single link installation ...8 6.1.2 Dual link installation 10 6.2 Attach the mast Mount Assembly..................................................................................... 13 6.3 Attach FiberLeap Antenna Unit to mast Mount Assembly .............................................. 15 6.4 Attach FiberLeap Access Unit to Antenna Unit ............................................................... 17 6.5 Make Cable Connection to FiberLeap Access Unit.......................................................... 19 6.6 Powering Up ..................................................................................................................... 21 6.7 Make Final Adjustment to Maximize Received Signal .................................................... 22 6.8 Test the Link ..................................................................................................................... 25 6.9 Remove/Replace Access Unit........................................................................................... 25 7 OPERATION........................................................................................................................ 26 8 INSPECTION AND MAINTENANCE ............................................................................... 26 9 APPENDIX........................................................................................................................... 27 2 FL60-125xL1 Installation and Operation Manual 020403 Rev B 1 SERVICE professionals. FiberLeap is designed and sold for installation and use by authorized, trained Failure to follow these installation instructions could damage the equipment and/or result in improper operation. Should any questions arise during installation or operation, contact Telaxis Customer Assistance Center (CAC). Maintenance is strictly limited to ensuring that the exterior of the Access Unit is kept clean, and that the power and ground connections are secure and free of corrosion. For service, the unit must be returned to Telaxis CUSTOMER ASSISTANCE CENTER

(CAC):

Phone 1-413-665-8551

Fax 1-413-665-7090

Email customerassitance@tlxs.com This product complies with CFR 1040.10 and 1040.11. A Class I laser is utilized in the Access Unit as a fiber optic driver. Class 1 lasers do not emit radiation at know 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 Interface Panel. 2 WARRANTY Refer to your sales order or lease agreement for warranty terms and conditions. Any attempt to modify a FiberLeap Access Unit will void the warranty. FL60-125xL1 Installation and Operation Manual 020403 3 Rev B 3 OVERVIEW Application The FiberLeapTM product is designed to extend the reach of fiber optic networks through wireless connections where installation barriers and high cost make installing additional fiber connections less desirable. Telaxis has developed this product to enable direct fiber optic connection and transmission of fiber optic signals over a wireless link without the use of conventional modems (see Figure 1). These fiber extension links function, and can be managed and serviced, as if they were a length of fiber optic cable. Figure 1. FiberLeap Link Overview FL60-125xL1 Installation and Operation Manual 020403 4 Rev B Hardware Description A FiberLeap fiber extension link consists of:

Access units (2) Antenna with mast Mount Assembly (2) Mast Mount Assembly Kit (2) FiberLeap Interface panels (2) FiberLeap System Cables (2) The two Access Units are mounted within direct visual Line-of-Site of each other. Each of the two Access Units is connected to an Interface Panel (located indoors), by means of a System Cable and, in some instances, supplementary lengths of standard fiber and copper cables. The Interface Panels connect to the fiber optic network. (Refer to Installation and Operation Manual, Interface Panel Model SP2000.) About this Manual This Installation and Operation Manual provides instructions on how to install the Access Unit and associated antenna on one end of a FiberLeap link which is then repeated for the other end of the link. The manual also provides instructions for removing and replacing just the Access Unit. This installation procedure assumes that the necessary rooftop mast for mounting the Access Unit and the System Cable have already been installed as described in section 5 of this manual under the topic Prerequisites. IMPORTANT:

A FiberLeap system must be installed to conform to all applicable, local and regional, lightning, electrical, public safety and fire protection codes. It is the responsibility of the user to determine what codes apply and the necessary requirements. Telaxis Customer Assistance Center will supply, upon request, a bulletin which lists suggested steps towards making a FiberLeap installation conform to NFPA 780, Standard for the Installation of Lightning Protection Systems, 2000 Edition. FL60-125xL1 Installation and Operation Manual 020403 5 Parts Identification 5 GETTING STARTED Tools Required Rev B INSPECTION AND UNPACKING Inspect the shipment packaging and contents for any obvious damage due to shipment. If any damage is evident, you should immediately file a claim with the transporter and forward a copy to the FiberLeap Customer Assistance Center. The Packing List itemizes each component shipped. Verify each part of the indicated quantity. If any parts are missing, immediately contact:

FiberLeap Customer Assistance Center (CAC). 1 .. FiberLeap Access Unit, Model FL60-1250 1 .. Antenna with mast Mount Assembly and hardware kit, Model MT2000-PR 1 .. FiberLeap Installation and Operation Manual (5031597401) 1 .. Access Unit Hardware Kit, Installation (5031597701) This section lists the tools and parts needed to install the mast Mount Assembly and Access Unit, as well as important Safety Guidelines. Hardware Installation, Cable Connections and Alignment One open end wrench, 17 mm Two open end wrenches, 9/16 One hex socket driver, 5/16 Crimping Tool (Ground lug attachment to ground wire) Multimeter for dc voltage measurement and continuity checks BNC-to-BNC Cable with BNC-to-test lead adapter Safety Information The following are safety guidelines that you should observe when working with any equipment that connects to electrical power or telephone wiring;

Safety Warnings WARNING This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. FL60-125xL1 Installation and Operation Manual 020403 4 6 Rev B WARNING Do not work on the system or connect or disconnect cables during periods of lightning activity. WARNING Before performing any of the following procedures, ensure that the equipment room dc power source supplying power to the Interface Panel is OFF. Prerequisites Before initiating the actual installation of the Access Unit, certain other activities should already have been accomplished. These include:

1. A Site Engineering Study This study would have been initiated by a Site Survey to determine all the physical and environmental constraints of the installation. The engineering study ensures that the performance of the data link can be met and specifies the details of the installation, i.e. the location of the Interface Panel, diameter of the mount/mast for the Access Unit and its location, identification of the power source, length of the System Cable, distance between the two FiberLeap Access Units (link distance), far end Access Unit location, etc. 2. Installation of the Rooftop Mast for the Access Unit A suitable mast, 2.5 to 4.5 O.D., of sufficient height to meet the Access Unit mounting height requirement specified in the engineering study must have been installed. This mast must be braced or ballasted to survive high winds and grounded to the rooftop lightning protection system in accordance with NEC or local regulations. An alternative, such as railing mount, may be utilized in some installations. 3. Installation of the System Cable This installation must have been completed in conformance with building requirements and governing codes by trained and licensed installers. In locations where the System Cable does not extend fully to the Interface Panel, the System Cable should be terminated at a Junction Box near the Rooftop Mast. A connection to the Interface Panel must be accomplished by the installation of copper and fiber cable extensions between the Junction Box and the Interface Panel. 4. Installation of the Interface Panel The Interface Panel should be either rack or wall mounted in a suitable location in the Equipment Room to allow easy connection to the network switch and the dc power source. (Refer to Installation and Operation Manual, Interface Panel Model SP2000.) 5. Review of Installation Details The installer should review the engineering study to assure an understanding of all the installation requirements. This includes the Access Unit type (A or B), mounting height, Line-of-Sight direction to the far end of the link, antenna polarization (Horizontal or Vertical) and data source identification. FL60-125xL1 Installation and Operation Manual 020403 7 Rev B INSTALLATION 6 6.1 Positioning the mast Mount Assembly The site engineering study specifies the physical requirements for mounting the Access Unit and the installer must refer to that document to determine the pre-determined parameters for properly installing the mast Mount Assembly and Access Unit:

Height above the roof deck Location of the two Access Units and the connecting line-of-sight Access Unit type at each link end (A or B) 6.1.1 Single Link Installation For single link installations it is recommended that the Access Unit always be mounted to the right of the pole or mast as shown in Figure 2. The brass elevation adjustment pin on the Mount Assembly should be closest to the installer when so assembled. The associated elevation adjustment hex nut will be facing up. Line-of-sight Mount Assembly locking bolts (4 places) Handle position shows Horiz. polarization Pole mast Mount Assembly Access Unit Figure 2. Mount Assembly Orientation to Line-of-Sight for Installation to Right-hand Top view Side of Pole/Mast FL60-125xL1 Installation and Operation Manual 020403 8 Rev B Positioning the mast Mount Assembly (cont.) Note: Two open drain holes on the antenna will be located underneath the antenna for this installation. WARNING When working on a roof, on a ladder, mast or staging, use extreme care. Observe all facility and OSHA (or other applicable regulatory agency) required safety precautions. Ensure that the (4) locking bolts on the mast Mount Assembly are always loosened approximately 1 turn when making azimuth or height adjustments. Position the mast Mount Assembly on the mast, at the height specified in the Site Engineering Study. See Figure 3. Figure 3. Access Unit Height above Roof IMPORTANT:

DO NOT position Access Unit Line-of-Sight in such a manner that the antenna beam is directed towards areas where maintenance personnel could obstruct it. FL60-125xL1 Installation and Operation Manual 020403 9 Rev B Positioning the mast Mount Assembly (cont.) For installations where it is not possible to have the Access Unit mounted to the right of the pole/mast, the Mount Assembly needs to be flipped over resulting in the installation shown in Figure 4. Line-of-sight Mount Assembly locking bolts (4 places) Access unit Mount assembly Top view Pole mast Figure 4. Mount Assembly Orientation to Line-of-Sight for Installation to Left-hand Side of Pole/Mast Note: The brass elevation adjustment pin on the Mount Assembly should still be closest to the installer when working from the rear, but the elevation adjustment hex nut will instead now be facing down. It will be necessary to move two drain hole plugs (now facing down) on the antenna to the top of the antenna. This will create two open drain holes underneath the antenna for this installation. 6.1.2 Dual Link Installation Some installations may require two links installed on the same pole/mast. Two different scenarios are anticipated here. 10 FL60-125xL1 Installation and Operation Manual 020403 Rev B Positioning the mast Mount Assembly (cont.) a) An installation involving two Access Units on the same mast (two different links) and pointing in different directions can have Access Units positioned for the same or different polarization. Figure 5 shows horizontal polarization selected for each link. Line-of-sight Side view Line-of-sight Handle positions show horizontal polarization Figure 5a. Two Access Units with Different Line-of-Sight having the same polarization Top view Line-of-sight 11 FL60-125xL1 Installation and Operation Manual 020403 Rev B Positioning the mast Mount Assembly (cont.) b) An installation involving two Access Units on the same mast (two separate links) and pointing in the same direction requires one Access Unit positioned for horizontal polarization (Carry handle located on top or bottom of Access Unit). The second Access Unit should be positioned for vertical polarization (Carry handle located on either side of the Access Unit). See Figure 5b. Orientation of handles shows cross-polarization Side view Line-of-sight Figure 5b. Two Access Units with Same Line-of-Sight Top view 12 FL60-125xL1 Installation and Operation Manual 020403 Rev B 6.2 Attach the mast Mount Assembly 6.2.1 Attach to Mast (Do not loosen Az Lock Bolts):

Using (4) 3/8-16 galvanized nuts, flat washers, lock washers and (2) clamp plates, secure mount assembly to pole. Tighten hardware (4 places). Torque to 45-55 N-m (33-40 lb-ft). By sighting along the center pin and elevation adjustment pin on the Mount Assembly, adjust the Mount Assembly for approximate link line up. See Figure 6. IMPORTANT:

6.2.2 For fine elevation adjust:

6.2.3 For fine Azimuth adjust:

Loosen (2 places) 3/8-16 galvanized elevation mounting and locking screws (see Figure 7), rotate (1 place) elevation adjust hex nut (see Figure 6) to required amount of tilt. Tighten 3/8-16 galvanized elevation mounting and locking screws (2 places). Torque to 45-55 N-m (33-40 lb-ft). Loosen (4 places) Azimuth locking screws (see Figure 7). Use 3/8-16 nuts (2 places) to drive antenna Left or Right to required pointing direction (see Figure 7). Tighten 3/8-16 nuts (2 places). Tighten 3/8-16 Azimuth locking screws (4 places). Torque to 45-55 N-m

(33-40 lb-ft). 13 FL60-125xL1 Installation and Operation Manual 020403 Rev B Attach the mast Mount Assembly (cont.) Rotate mast Mount Assembly around pole mast to obtain correct line-of-sight Elevation adjust hex nut (1 place) closest to installer when working from the rear Line-of-sight Flat washer

(4 places) Lock washer

(4 places) Hex nut (4 places) Azimuth fine adjust hex nut Use center pin and brass elevation adjustment pin to approximately align Mount Assembly (in horizontal and vertical planes) to far end Unit Figure 6. FiberLeap mast Mount Assembly Hardware FL60-125xL1 Installation and Operation Manual 020403 14 CAUTION:

Rev B 6.3 Attach FiberLeap Antenna Unit to mast Mount Assembly Handle Antenna Unit carefully to prevent damage Avoid impact or shock to the unit, especially to the antenna radome Always have protective cap on antenna feed except when Access Unit is attached. 6.3.1 Attach the antenna to the mast Mount Assembly by aligning the center pin hole and elevation adjustment pin on the antenna bracket to the two pins on the mast Mount Assembly. Use (2) 3/8-16 UNC x 1.00inch hex screws with nylon washers, flat washers and lock washers to fasten as shown in Figure 7. Do not torque. 6.3.2 Ensure that (4) Azimuth locking screws and (2) Elevation mounting and locking screws are all loosened approximately 1 turn. 15 FL60-125xL1 Installation and Operation Manual 020403 Rev B Attach FiberLeap Antenna Unit to mast Mount Assembly (cont.) Galvanized antenna mounting and elevation locking screws (2 places) Steel washer (2 places) Lock washer (2 places) Nylon washer (2 places) Two plugged drain holes Azimuth locking screws (4 places) Azimuth adjust nuts (2 places) Two open drain holes must be located on bottom IMPORTANT:

After assembly, ensure that the two plugged drain holes are located at the top of the antenna as depicted in Figure 7. Figure 7. Antenna Attachment to mast Mount Assembly FL60-125xL1 Installation and Operation Manual 020403 16 Rev B 6.4 Attach FiberLeap Access Unit to Antenna Unit 6.4.1 Remove the protective cap on the antenna feed and inspect o-ring for any damage. 6.4.2 Remove the protective clear tape from the antenna interface port on the Access Unit. 6.4.3 Mount the Access Unit to the Antenna Unit using (4) 3/8-16 x 1.25 inch stainless steel socket head screws, lock washers and flat washers as shown in Figure 8. Ensure that the handle on the Access Unit is positioned either on the side (vertical polarization) or on the top or bottom (horizontal polarization) of the Access Unit depending on the polarization specified by the Site Engineering Study. Torque the bolts to 30-38 N-m (22-28 lb-ft). IMPORTANT:

Polarization of the near end and far end Access Units must be the same. The Site Engineering Study specifies Horizontal or Vertical polarization. Ensure that the (4) azimuth and (2) elevation locking screws on the mast Mount Assembly are always loosened approximately 1 turn when making azimuth or elevation adjustments to prevent damage to the adjustment mechanisms. Each link is comprised of two Access Units, one type A and one type B, as designated by the suffix after the model number (example FL60-1250-AL1 indicates type A). Install the type A or type B Access Units at the near end or far end, as specified in the Site Engineering Study. 17 WARNING Attachment of any antenna other than the one supplied may violate FCC approval. FL60-125xL1 Installation and Operation Manual 020403 Rev B Attach FiberLeap Access Unit to Antenna Unit (cont.) Depress antenna feed with finger and ensure it returns freely to its normal position Inspect o-ring for damage 18 Flat washer (4 places) Lock washer (4 places) Stainless steel socket head screws (4 places) Figure 8. Access Unit Attachment to Antenna Unit FL60-125xL1 Installation and Operation Manual 020403 Rev B 6.5 Make Cable Connection to FiberLeap Access Unit 6.5.1 Route an AWG 6 ground wire and System Cable up the mast and dress appropriately approximately every 18 using cable ties such that the wiring is close to the mast and an adequate service loop remains to connect to the Access Unit. Minimum bend radius for the System Cable is 130 mm (5 inches). 6.5.2 Crimp (1) M10 (.39 inch I.D) Ring Terminal on the AWG 6 ground wire using the appropriate crimping tool and setting. 6.5.3 Attach the ground wire to the Access Unit using the M10 x 1.5 x 25mm Hex Hd screw, M10 Lock Washer and M10 Flat Washer through the Ring Terminal. Torque to 45-50 N-

m (33-37 lb-ft). See Figure 9. 6.5.4 Remove the protective caps on the Access Unit connector AND System Cable connector. Align the System Cable connector to match the Access Unit and connect, turning the connector nut until secure. 6.5.5 Mate the two protective caps. Use the tie-wrap to secure the two protective caps to the cable. CAUTION:

Before proceeding with the cable connection, ensure that the corresponding power switch on the Interface Panel (rear) is OFF. 19 FL60-125xL1 Installation and Operation Manual 020403 Rev B Make Cable Connection to FiberLeap Access Unit (cont.) Ground lug location Protective cap Attach system cable here after removing protective cap Figure 9. FiberLeap Access Unit Back View IMPORTANT:

The ground wire and connections at both ends must present a low impedance path to afford adequate lightning protection to the installation and to ensure protection against electrical shock. Failure to provide an adequate ground could invite malfunction by making the installation susceptible to electromagnetic interference. FL60-125xL1 Installation and Operation Manual 020403 20 Rev B 6.6 Powering Up 6.6.1 Verify the proper connection of the System Cable (and any extension cables inside the building) to the Interface Panel. Proper connections are specified in the Installation and Operation Manual, Interface Panel Model SP2000, Section 6, Installation. 6.6.2 Verify the connection of the Interface Panel to the power source. Observe proper polarity of the DC POWER INPUT connections as shown in Figure 10. 6.6.3 Enable the power source to the Interface Panel 6.6.4 Verify the power source voltage is between 36-60 Vdc using a voltmeter at the DC POWER INPUT terminals on the Interface Panel. 6.6.5 Turn ON Access Unit power at the Interface Panel (rear). The green LED on the front of the Interface Panel should illuminate to indicate power is available and enabled to the Access Unit. ON/OFF Switches 48VDC DC input Chassis ground Pass interconnect cables through here Figure 10. Interface Panel Connections (Rear) 21 FL60-125xL1 Installation and Operation Manual 020403 Rev B 6.7 Make Final Adjustment to Maximize Received Signal The purpose of this step is to adjust the Line-of-Sight of the Access Unit to maximize the main lobe signal level. During this step, the second FiberLeap Access Unit at the far end of the link must also be at the same step in the installation procedure and powered ON. When the Access Unit is powered ON without any optical data signal (i.e. with the network data patch cable disconnected from the Interface Panel) it will transmit a continuous CW signal which can be used for alignment purposes. 6.7.1. Connect a dc voltmeter to the BNC connector on the rear of the Access Unit using a BNC-to-test lead adapter as shown in Figure 11. If the peak alignment of the two Access Units is sufficiently close, the voltmeter should give a typical alignment voltage as shown in the Alignment Voltage Chart supplied with each unit. This chart will provide an alignment voltage for some typical installed link ranges. Visually adjust alignment if necessary. 6.7.2 Using the Azimuth Adjustment Nuts (see Figure 11), adjust the azimuth until the reading on the voltmeter is at a maximum. It is advised that, in order to ensure the true maximum, you should adjust through the maximum (peak voltage) until the voltage clearly drops and continues to drop to lower level side-lobes. Adjust back until the maximum is again attained (see Figure 12). 6.7.3 Using the Elevation Adjustment Screw (see Figure 11), adjust the elevation until the reading on the voltmeter is at a maximum. It is advised that, in order to ensure the true maximum, you should adjust through the maximum (peak voltage) until the voltage clearly drops and continues to drop to lower level side-lobes. Adjust back until the maximum is again attained (see Figure 12). 6.7.4 Repeats steps 6.7.2 and 6.7.3 above to guarantee optimum alignment for maximum signal strength. Refer to the Alignment Voltage Chart supplied with each unit. 6.7.5 Tighten the Azimuth adjustment nuts on the Mount Assembly while observing the voltmeter reading to ensure the azimuth alignment does not change while tightening. Tighten nuts to 45-55 N-m (33-40 lb-ft). Tighten (4) azimuth adjustment locking screws. Torque screws to 45-55 N-m (33-40 lb-ft). 6.7.6 Tighten the two Elevation adjustment screws on the Mount Assembly while observing the voltmeter reading to ensure the elevation alignment does not change. Tighten screws to 45-55 N-m (33-40 lb-ft). FL60-125xL1 Installation and Operation Manual 020403 22 Rev B Make Final Adjustment to Maximize Received Signal (cont.) Elevation adjust hex nut (1 place) Azimuth adjustment nuts (2 places) Azimuth adjustment locking screws (4 places) Alignment voltage connector Elevation adjustment locking screw (2 places) DVM 234 23 Figure 11. Final Line-of-Sight Adjustment and Signal Optimization for Link #1 (Access Unit 1 on A and B ends of Link) FL60-125xL1 Installation and Operation Manual 020403 Line-of-sight Main lobe peak signal Alignment voltage, Volts Rev B Azimuth, Elevation Position Relative to Line-

1st Figure 12. Peak Signal Side-lobe peaks 2nd 3rd 24 IMPORTANT:

It is possible to obtain a false peak alignment voltage from the signal of a side-lobe. Up to three different side-lobes on either side of the main lobe may give false peak alignment voltages. It is important that a wide sweep in both azimuth and elevation is made in order to identify these false peak voltages thereby homing in on the true peak alignment voltage attributed to the main antenna beam FL60-125xL1 Installation and Operation Manual 020403 Rev B 6.8 Test the Link Prior to placing the link in service for network traffic, the link should be tested using standard network procedures. The Installation Record and Warranty Registration form at the back of this manual should be completed with pertinent installation information. This should be done for each link installed. 6.9 Remove/Replace Access Unit IMPORTANT:

The azimuth and elevation alignment of the Access Unit is maintained by the Antenna Unit and the mast Mount Assembly. In the event that an Access Unit is removed and replaced with another Unit, the Antenna Unit and the mast Mount Assembly do not need to be removed or replaced, and preferably, its position should be left undisturbed. If these are left in position and the azimuth and elevation adjustments are not changed, then it should not be necessary to perform any alignment when replacing an Access Unit. 6.9.1 Turn Access Unit power switch OFF at the Interface Panel (rear). The green LED on the front of the Interface Panel will turn OFF. 6.9.2 Disconnect the System Cable from the Access Unit. Cover both the System Cable connector and the Access Unit connector with the protective caps to ensure that the fiber connectors remain clean. 6.9.3 Disconnect the ground wire from the Access Unit. 6.9.4 Remove the hardware holding the Access Unit to the Antenna Unit (four socket head screws plus lock washers and flat washers). 6.9.5 Attach the replacement Access Unit as described in Step 6.3.2. Ensure that the replacement Access Unit handle is oriented for correct polarization. Inspect and replace o-ring as necessary. 6.9.6 Reinstall the ground wire to the Access Unit. Torque grounding bolt to 45-50 N-m (33-

37 lb-ft). 6.9.7 Reconnect the System Cable to the Access Unit. Mate the two protective caps. Use a tie wrap to keep caps secure to the cable. 6.9.8 Turn Access Unit power switch ON at the Interface Panel (rear). The green LED on the front of the Interface Panel should illuminate. FL60-125xL1 Installation and Operation Manual 020403 25 Rev B 7 OPERATION Operation of a FiberLeap link is quite simple. There are no user controls or adjustments possible except for the ON/OFF switches on the Interface Panels at each end of the link, and aiming of the Access Units. Once turned ON, the units are fully operational. If the network is supplying optical data to the DATA TX connector at the Interface Panel, the Access Unit will transmit that data to the link far end Access Unit. Absence of a valid optical signal will place the transmitter in CW mode. In the event of malfunction or network alarms, refer to the FiberLeap Troubleshooting Guide. Any attempt to open or modify a FiberLeap Access Unit will void the warranty. 8 26 INSPECTION AND MAINTENANCE Routine inspection of the FiberLeap Access Unit and exterior portions of the Cables should be performed at least once per year to check for loose hardware, damage, corrosion or other disturbance to the installed hardware. Pay particular notice to the condition of the lightning protection and safety ground connections. Any damage, corrosion or conditions not conforming to the original installation should be corrected immediately. Replacement of an Access Unit, Interface Panel or System Cable, or any realignment of either of the two FiberLeap Access Units requires a retest for Bit Error Rate at the optical interface located on the front of the Interface Panel. FL60-125xL1 Installation and Operation Manual 020403 Rev B 9 APPENDIX A. FCC and Safety Information 27 FCC Licensing FiberLeap operates as an unlicensed device under FCC rules, Part 15, Low Power Communication Device Transmitter. FCC Part 15 Rules Compliance This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions:

This device may not cause harmful interference This device must accept any interference received, including interference that may cause undesired operation. The FiberLeap Access Unit has no user accessible controls and may not be modified or altered in any way. Changes or modifications to the equipment could void the users warranty. FCC RF Exposure Compliance The Federal Communications Commission (FCC), with its action in General Docket 93-

62, November 7, 1997, has adopted a safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated equipment. Telaxis subscribes to the same safety standard for the use of its products. Proper operation of this equipment will result in user exposure far below the Occupational Safety and Health Act

(OSHA) and Federal Communications Commission limits at any location external to the Access Unit. FCC ID# P57-FL60-1250 B. RF Safety Notice This unit has been tested for RF emission levels and found not to exceed the FCC RF exposure requirements for occupational and general public exposure. Even though the RF levels external to the unit are not hazardous to humans, Telaxis believes it is prudent to minimize all exposure to RF emissions and therefore recommends the installation be such that the RF beam emitted by the antenna be positioned over the heads of any personnel working in the vicinity. FL60-125xL1 Installation and Operation Manual 020403 Rev B C. Laser Safety Notice The Access Unit includes a Class I laser. Class I lasers do not emit radiation at known hazardous levels. 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 procedures other than those specified in this Manual may result in hazardous radiation exposure 28 FL60-125xL1 Installation and Operation Manual 020403 Installation Record and Warranty Registration Please completely fill out and return a copy of this form to Telaxis (mail, fax, or email at the addresses listed on the right). Purchasing/Leasing Company Information Telaxis Communications Customer Assistance Center 20 Industrial Drive East South Deerfield, MA 01373 USA Phone (413) 665-8551 Fax (413) 665-7090 Email: customerassistance@tlxs.com Customer/Company Address Address City/Town Company Contact Name Title Fax Purchase Order No. Installation Information State Zip Phone E-mail Date:

Application (OC-3, OC-12, GigE, Etc. Company Link Identification Number End A Installation Address Address City/Town Installer Name/Company Access Unit Model Number Interface Panel (as applicable) Model Number System Cable Model Number BER Test Technician Company/Name Test Date State Zip S/N S/N S/N Pass Fail

[Circle One]

Rev B Payload/Test Pattern Bit Error Rate Achieved Test Duration Days Hours

[Circle One]

End B Installation Address Address City/Town Installer Name/Company Access Unit Model Number Interface Panel (as applicable) Model Number System Cable Model Number BER Test Technician Company/Name Test Date Payload/Test Pattern Bit Error Rate Achieved Test Duration 30 State Zip S/N S/N S/N Pass Fail

[Circle One]

Days Hours

[Circle One]

FL60-125xL1 Installation and Operation Manual 020403