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 GE60 Installation Manual 

580-00505, rev 0.4

 

27 of 30 

PRELIMINARY

 

3.9   Fine Alignment -- 

Optional

 

The fine alignment procedure uses Receive Signal Strength Indication (RSSI) voltage 
generated by the radio’s receiver. Since this voltage reacts to the power of the received 
signal, it is not influenced by the machining/manufacturing tolerances seen with 
mechanical parts. While procedure can yield an improvement of up to 2 dB in Link 
Budget when performed on both sides of the link, only those links with path lengths near 
the maximum length will see any benefits. 
 
 
1. 

Attach voltmeter to the RSSI voltage pins. Note the RSSI voltage. The voltage may 
be fluctuating; in this case, note the maximum value seen.  

 

 

Figure 3-11: Proper placement of voltmeter cables to check RSSI 

Note:  Black cable is connected to ground and red cable is connected to RSSI pin 
 
2. 

Using care not to disturb the pointing of the radio, loosen the bolts tightened in 
steps 5 & 6 of the Visual Alignment procedure (Section 3.8) so that the radio may 
be tilted up/down and left/right. 

 

Summary of Contents for GE60

Page 1: ...Preliminary Confidential 1 of 30 making connections in a high speed world Wireless Gigabit Ethernet Link Model GE60 Installation Manual P N 580 00505 Revision 0 4 March 2004 ...

Page 2: ...ument Purchasers of BridgeWave products should make their own evaluation to determine the suitability of each such product for their specific application BridgeWave s 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...

Page 3: ... in the event that BridgeWave determines in its sole opinion that such Products conform to the limited warranty Buyer shall pay for shipping and insurance of such Products back to Buyer All obligations of BridgeWave under this limited warranty shall cease in the event of abuse accident alteration misuse or neglect of the Product In warranty repaired or replaced parts are warranted only for the rem...

Page 4: ... to comply with these requirements Do not operate wireless equipment without an appropriate termination Do not work directly in front of an energized antenna Prior to working on the antenna or RF assembly ensure that the RF assembly is not radiating energy When power is applied to the RF assembly and antenna proper precautions must be taken to avoid placing any part of the human body in front of t...

Page 5: ...th part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference that may cause undesired operation Equipment Precautions Water and Moisture The GE60 is designed to withstand moisture conditions typically encountered when installed outdoors They are not designed for operation under water...

Page 6: ...of such issues A professional agency specializing in this area should be consulted for additional information and services of this type DANGER Indicates that personal injury can result if the user does not comply with the given instruction A DANGER statement will describe the potential hazard its possible consequences and the steps to perform to avoid personal injury WARNING Indicates that serious...

Page 7: ...If problems are not resolved contact BridgeWave Customer Service for assistance Santa Clara CA USA Tel 408 567 6900 Fax 408 567 0775 Email support bridgewave com Return Material Authorization RMA Should BridgeWave equipment have to be returned for repair or replacement an RMA number must be obtained from BridgeWave or the local BridgeWave distributor When returning equipment be sure to write the R...

Page 8: ... light conditions The planning should include an investigation into future building plans that could block the LOS path and other long term incremental obstructions such as trees Intermittent obstructions such as aircraft at a nearby airport should also be considered The minimum required clearance from obstacles is 60 of the first Fresnel zone Fresnel zones are a series of concentric ellipsoid are...

Page 9: ...as or using a range finder device Table 2 2 below lists the maximum link distance with respect to desired availability and ITU rain zone ITU R Recommendation PN 837 The map Figure 2 1 following the chart shows where the rain zones fit across North America and Asia for various availabilities and most ITU rain zones Rain Zone Availability A B C D E F K M N 99 7000 837 817 807 787 812 787 787 727 697...

Page 10: ...TM GE60 Installation Manual 580 00505 rev 0 4 10 of 30 PRELIMINARY Figure 2 1 Rain Zone map for North America Figure 2 2 Rain Zone map for Asia ...

Page 11: ...it may be required The maximum cable run length as specified for the equipment being installed must not be exceeded Our radio requires an LC type connector on the multi mode fiber to properly connect the fiber to the radio Single mode fiber is not a current option supported by the radio The type of fiber connector typically either LC or SC required on the other end of the fiber that connects to th...

Page 12: ... is provided with each radio for a ground cable to allow the radio to be grounded to the applicable pole or to the mount in the event a pole is not used for the installation The pole or mount as applicable will need to be connected to the building ground In addition to grounding the equipment local building codes may require the DC electrical cable to be protected from lightning strikes In the eve...

Page 13: ...nd cabling found on a typical installation of BridgeWave s 60GHz radio equipment LAN WAN LAN WAN High Band Radio Vertical Polarization Low Band Radio Vertical Polarization Gig E Switch or Roter Gig E Switch or Roter Fiber Optics Cable Fiber Optics Cable DC Power Cable DC Power Cable Path between radios Indoor Power Supply Indoor Power Supply ...

Page 14: ...ubsection 3 8 and 3 9 contains information necessary for aligning the antennas 3 2 Equipment Packing Unpacking The radio system equipment will arrive in two boxes one box for the low band radio and one box for the high band radio Locate the correct box low band or high band before beginning installation by checking the label on the outside of the box or on the radio itself It is recommended that t...

Page 15: ... CAUTION Tampering with seals will void the warranty Notice the warranty stickers on the inner metal cover of the radio The radio is sealed at the factory There is no need to open this cover in the field Tampering with these seals will void the warranty 3 4 Installation Tools The following tools should be on hand for installing the radio system Screwdriver Slotted 0 1 inch 2 5mm wide Open End Wren...

Page 16: ... be strong enough to secure the radio to the wall under foreseeable environmental conditions The environmental conditions may include but not limited to wind rain ice etc Depending on the wall material the mount is being attached to a different size bolt may be appropriate In this case bolts up to inch in diameter may be used 2 Secure the mount to the bolts using the appropriate sized nuts lock wa...

Page 17: ... to secure the mount a pole with diameters of 2 0 to 4 5 inches 5cm to 11cm 1 Attach two of the pole clamps to the mounting bracket using 4 each 16 x bolts lock washers and flat washers Attach the threaded rods to the pole clamps using 8 16 nuts and 4 each lock washers and flat washers Refer to Figure 3 2 2 Secure the mount to the pole using two pole clamps and 4 each 16 nuts lock washers and flat...

Page 18: ...TM GE60 Installation Manual 580 00505 rev 0 4 18 of 30 PRELIMINARY Figure 3 2 Mount with Radio Yoke in Pole Mount Configuration Figure 3 3 Side view of mount with Radio Yoke in Pole Mount Configuration ...

Page 19: ...TM GE60 Installation Manual 580 00505 rev 0 4 19 of 30 PRELIMINARY 3 13 inches 6 25 inches 15 9 cm 8 0 cm Figure 3 4 Template Radio Mounting bolts ...

Page 20: ...cates that equipment damage process failure and or loss of data can result if the user does not comply with the following given instruction A CAUTION statement will describe the potential hazard its possible consequences and the steps to perform to avoid equipment damage process failure and or loss of data It is critically important during installation to ensure the radios on each side of the link...

Page 21: ...nt bolts through the channel in the yoke Tighten the up down pivot bolts enough such that the finger cam is behind the tab at the front of the yoke Turn the finger cam clockwise until tight With the cam tightened the pivot bolt is prevented from any front back movement Figure 3 6 Detail of Up Down Pivot Adjustment Bolts and Finger Cam ...

Page 22: ...uipment Power Cabling 1 Select indoor location with easy cable routing to the radio for the AC power adaptor Normally it is convenient but not required to place the adaptor near the network termination equipment 2 Select the appropriate wire gauge based on the estimated cable length required AC adaptor location to radio see Table 2 4 3 Install the DC power cable and attach to the AC adaptor using ...

Page 23: ... is inserted through the fitting on the right Both the cables have been looped around the inside of the enclosure to minimize tension on the cables when connected to the radio Ground Cabling 1 Attach the lug of the copper ground cable provided with the radio to one of the two 8 holes at the bottom of the radio using a 8 32 bolt 8 lock washer and 8 flat washers 2 Connect other end of the ground cab...

Page 24: ...cisely orient align the radio in the correct direction Select the hole that allows the most convenient viewing of the other end of link The best viewing is achieved with your eye 13 inches 33cm from the VAT mirror The radio is aimed at the point tangent to the top of the red indicator when all three indicators green red green are in a line with equal gaps between the indicators Figure 3 9 View of ...

Page 25: ... adjust the radio up down as necessary due to the tightening of the mounting bracket Tighten the lower bolts below the up down pivot bolts on the radio yoke being careful not disturb the up down pointing of the radio Once the lower bolts are tight tighten the up down pivot bolts 7 Connect DC power to the radio check that the Power LED is lit If the Power LED is not lit use voltmeter to verify corr...

Page 26: ...there is no need to proceed to the Fine Alignment or BER voltage steps detailed below unless this LED is lit 11 If desired perform optional Fine Alignment Section 3 9 on both sides of the link 12 Check the BER voltage 3 3VDC indicates error free link Note alignment must be completed on both sides of the link and Link Up LED must be lit solid green before valid voltage readings can be made Figure 3...

Page 27: ... dB in Link Budget when performed on both sides of the link only those links with path lengths near the maximum length will see any benefits 1 Attach voltmeter to the RSSI voltage pins Note the RSSI voltage The voltage may be fluctuating in this case note the maximum value seen Figure 3 11 Proper placement of voltmeter cables to check RSSI Note Black cable is connected to ground and red cable is c...

Page 28: ...d right until the maximum reading is achieved on the voltmeter Tighten the left right adjustment bolt to prevent movement in this axis 4 Tilt the radio up and down until the maximum reading is achieved on the voltmeter Tighten the up down adjustment bolts to prevent movement further movement ...

Page 29: ...lit solid green 2 The fiber LED should be lit solid green 3 The Link Up LED should be lit solid green and 4 The Pre FEC BER voltage should be 3 3v although occasional dips in voltage are acceptable Figure 4 1 Link Up Fiber and Pwr Power LED s indicating link is up and operating The GE60 radio itself does not require periodic maintenance However each end of the link should be periodically inspected...

Page 30: ...rs are good Is the Link Up LED green Is the Pre FEC BER voltage 2 0v Yes Re align the radio for maximum RSSI voltage Verify that maximum path length has not been exceeded refer to Table 2 2 Verify that both radios are mounted in same polarization Verify that one radio is Low Band and one is High Band No Check radio at other end of the link Fiber LED should be solid green Check the fibers to the ra...

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