Changes between Version 21 and Version 22 of WiMAXInteg/CampusInstallation


Ignore:
Timestamp:
11/30/09 16:18:17 (14 years ago)
Author:
hmussman@bbn.com
Comment:

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  • WiMAXInteg/CampusInstallation

    v21 v22  
    9090 * Access to 110VAC feeds for Linux Servers, and possibly -48VDC rectifiers.  If possible, the 110VAC feeds should be protected with an  Uninterruptible Power Supply (UPS) that bridges short power gaps, to prevent disrupting the WiMAX testbed from the most common (short) power gaps.
    9191
     92 * Access to available Ethernet (VLAN) switching capacity, if possible.
     93
    9294 * Access to backbone network Layer 2 connection.
    9395
    … …  
    107109ISSUE:  Does this require a PE?
    108110
    109  * Two coaxial cables between (one) Outdoor Unit and (one) Antenna, including lightning protector.  See ?
     111 * One -48VDC power cable, from (one) Outdoor Unit to indoor equipment room.  See ?
     112
     113ISSUE:  Does kit contain this cable?
     114
     115 * Two fiber signal cables, from (one) Outdoor Unit to indoor equipment room.  See ?
    110116
    111117ISSUE:  Does kit contain these cables?
    112118
    113  * One -48VDC power cable, from (one) Outdoor Unit to indoor equipment room.  See ?
    114 
    115 ISSUE:  Does kit contain this cable?
    116 
    117  * Two fiber signal cables, from (one) Outdoor Unit to indoor equipment room.  See ?
     119
     120=== 7.5  Install Pole at Outdoor Site and Ground ===
     121
     122A pole must be provided and mounted at the outdoor site to safely and securely mount the Antenna and Base Station Outdoor Unit. 
     123
     124See Appendix 6 of [attachment:BS_INSTALLATION.pdf NEC Installation Manual for Base Station (IMN:BS)] 
     125
     126See Section 1.2 of [  NEC Sector Antenna Installation Manual], which specifies a pole diamaeter between 48mm and 120mm.
     127
     128For example, the pole may be suuported on a roof using an H bracket;  see ?
     129
     130ISSUE:  Does this require a PE to certify the safety?
     131
     132The pole should be mounted in a position that optimizes the performance (e.g., the range) of the Antenna.
     133
     134ISSUE:  Should the pole be placed to allow for the possible addition of a second or even third antenna?
     135
     136The pole must be connected to the heavy cable that runs to the building ground.
     137
     138
     139=== 7.6  Install Antenna at Outdoor Site ===
     140
     141[[Image(Antenna.jpg, height=160px, align=right)]]
     142The base station kit includes one dual-polarization, omnidirectional antenna, for operation in the 2.5GHz range.
     143 
     144The installation should follow [attachment:ANTENNA.pdf NEC's Sector Antenna Installation Manual].
     145 
     146Since throughput and coverage of WiMAX systems are highly influenced by the antenna location, care should be taken that the antenna is mounted so that siginificant portion of First Fresnel Zone is clear of obstructions.  Ideally the antenna is mounted on the elevated structure providing clear line of sight to most of the intended coverage area.
     147
     148ISSUE:  How does its height influence the coverage?  Are we limited to 6' above the structure?  If so, how is this measured? On which side of the pole should the antenna be mounted?  How should it be tilted?  How do these influence the coverage pattern? 
     149
     150
     151ISSUE:  Do we also need GPS receiver and antenna, per NEC documentation?  If we do not install it now, what might we be missing later?
     152
     153
     154=== 7.7  Install Base Station Outdoor Unit ===
     155
     156The Base Station Outdoor Unit (ODU) is mounted outdoors, near the antenna.  It connects to the antenna with a coaxial cable, and connects to the Indoor Unit (IDU) with two fibers.  In addition, it requires a -48 power feed and a protection ground. 
     157
     158The installation should follow [attachment:BS_INSTALLATION.pdf NEC's installation instructions]
     159
     160=== 7.8 Complete Wiring at Outdoor Site and to Indoor Equipment Room ===
     161
     162 * Verify connection of heavy ground cable from pole to building ground, and from pole to Antenna and Base Station Outdoor Unit. 
     163
     164ISSUE:  Does this require a PE?
     165
     166 * Two coaxial cables between Outdoor Unit and Antenna, including lightning protectors.  See ?
    118167
    119168ISSUE:  Does kit contain these cables?
    120169
    121 
    122 === 7.5  Install Pole at Outdoor Site and Ground ===
    123 
    124 
    125 === 7.6  Install Antenna at Outdoor Site ===
    126 
    127 [[Image(Antenna.jpg, height=160px, align=right)]]
    128 The base station kit includes one dual-polarization, omnidirectional antenna.
    129 
    130 Since throughput and coverage of WiMAX systems are highly influenced by the antenna location, care should be taken that the antenna is mounted so that siginificant portion of First Fresnel Zone is clear of obstructions.  Ideally the antenna is mounted on the elevated structure providing clear line of sight to most of the intended coverage area.
    131 
    132 The installation should be performed by qualified PE to ensure proper grounding and should follow [attachment:ANTENNA.pdf NEC's mounting instructions].
    133 
    134 
    135 === 7.7  Install Base Station Outdoor Unit ===
    136 
    137 The Outdoor Unit (ODU) is mounted outdoors, near the antenna.  It connects to the antenna with a coaxial cable, and connects to the Indoor Unit (IDU) with two fibers.  In addition, it requires a -48 power feed and a protection ground.
    138 
    139 The installation should be performed by qualified PE to ensure proper grounding and should follow [attachment:BS_INSTALLATION.pdf NEC's installation instructions]
    140 
    141 === 7.8 Complete Wiring Between Outdoor Site and Indoor Equipment Room ===
     170 * One -48VDC power cable, from Outdoor Unit to indoor equipment room.  See ?
     171
     172 * Two fiber signal cables, from Outdoor Unit to indoor equipment room.  See ?
    142173
    143174
    … …  
    145176=== 7.9  Install Indoor Equipment Racks and Ground ===
    146177
     178Install (or identify) indoor equipment racks in the indoor equipment room, with sufficient space to mount:
     179
     180 * Base Station Indoor Unit (5U).  See ?
     181
     182 * Three Linux Servers (3 x 1U = 3U)
     183
     184 * Ethernet (VLAN) switch (typically 2U), or utilize existing Ethernet switch capacity.
     185
     186These racks must be properly connected to building ground.
     187
     188
     189
    147190=== 7.10 Install 120VAC and -48VDC Power Feeds and/or Supplies ===
    148  
     191
     192
     193Provide -48VDC feeds for Base Station Outdoor Unit (max 4A) and Base Station Indoor Unit (max 8.3A), or else provide -48VDC rectifiers run from 110VAC feeds to supply these loads.
     194
     195ISSUE:  If -48VDC rectifiers are required, what is recommended?  Individual units for each load?  Sized to suuport a fully populated Base Station Indoor Unit?  Or less?
     196
     197Provide 110VAC feeds for Linux Servers, Ethernet switch (if provided), and -48VDC rectifiers (if provided). 
     198
     199ISSUE:  If possible, the 110VAC feeds should be protected with an  Uninterruptible Power Supply (UPS) that bridges short power gaps, to prevent disrupting the WiMAX testbed from the most common (short) power gaps.  If this is not available, should one be added?  If so, what is recommended?
     200
     201
     202
    149203=== 7.11 Install Base Station Indoor Unit ===
    150204
    151 The Indoor Unit (IDU) is mounted indoors, typically in an equipment room.  It connects to the ODU with two fibers, and to the Linux servers usxing an ethernet cable.  In addition, it requires a -48 power feed and a protection ground.
    152 
    153 
    154 The installation should be performed by qualified PE to ensure proper grounding and should follow [attachment:BS_INSTALLATION.pdf NEC's installation instructions]
     205The Base Station Indoor Unit (IDU) is mounted indoors, typically in an equipment room.  See ?
     206
     207It is equipped with:
     208
     209 * One NW INTFC unit.
     210
     211The NW INTFC unit connects to a  -48 power feed and a protection ground, and supplies power to the entire Indoor Unit.  See ?
     212
     213The NW INTFC unit connects to the ASN-GW function, supported on the Linux servers, using an ethernet cable that connects to the Ethernet switch, that provides the necessary VLAN.
     214
     215 * One CHC unit. 
     216
     217Each CHC unit supports one Outdoor Unit and Sector Antenna.  It connects to the ODU with two fibers.
     218
     219Optionally, each CHC unit could support two Outdoor Units and Sector Antennas. 
     220
     221ISSUE:  Is there any reason to do this?  Or, is this for redundancy?
     222
     223 * Optionally, two additional CHC units could be installed.
     224
    155225
    156226=== 7.12  Complete Wiring of Base Station Indoor Unit ===
    157227
     228
    158229=== 7.13  Initial Check-Out of Antenna and Base Station Outdoor and Indoor Units ===
    159230
    160  
    161 
    162 === 7.14  Install Linux Server(s) and Software ===
    163 
    164 
    165 === 7.15  Connect Backbone Network ===
    166 
    167 
    168 === 7.16  Provide Reference Client Platform ===
    169 
    170 
    171 === 7.17 Inital Check-Out of Campus WiMAX Testbed ===
     231
     232=== 7.14 Install Ethernet (VLAN) Swithc, or Identify Existing Capacity
     233
     234
     235=== 7.15  Install Linux Server(s) and Software ===
     236
     237
     238=== 7.16  Connect Backbone Network ===
     239
     240
     241=== 7.17  Provide Reference Client Platform ===
     242
     243
     244=== 7.18 Inital Check-Out of Campus WiMAX Testbed ===