Changes between Version 103 and Version 104 of WiMAXInteg

Timestamp:

02/12/10 16:15:37 (14 years ago)

Author:

hmussman@bbn.com

Comment:

--

WiMAXInteg

@@ -178 +178 @@
 === 6.2  NEC Hardware  ===
 
-Fig 1-2b)  NEC BTS, ODU and Antenna  [[BR]]
+Fig 1-2b)  NEC BTS IDU, ODU and Antenna  [[BR]]
 [[Image(Visio-111309b_WiMAXSystemOverview_Page_3.jpg, 90%)]]  [[BR]]
 
@@ -184 +184 @@
 
 
-Both ODU and IDU are, as are most other telecom systems, powered by the -48VDC power source. There are two possible configurations:
-
- * Single unit -48 VDC power supply that is powering both ODU and IDU
- * Two independent -48 VDC power supplies one for each of the units
-
-The second solution has an advantage in deployments for which 110V AC circuit is already available at the chosen outdoor installation location.
+Both the NEC ODU and IDU are, as telecom systems, powered by a -48VDC power source. 
+
+It is recommended that two separate -48VDC power supplies, with 110VAC feeds, be provided, one for each unit.  This avoids the need for a -48VDC distribution panel, with circuit breakers, and yet still allows individual control for each unit.  Furthermore, it allows the power supply for the ODU to be mounted in a weathertight box on the roof, if that is preferred to mounting with the indoor testbed equipment.[[BR]]
+ 
+Power feed connections are outlined in the [http://groups.geni.net/geni/attachment/wiki/WiMAXInteg/CampusInstallation/BS_INSTALLATION.pdf NEC Installation Manual for Base Station (IMN:BS)][[BR]]
+
+The recommended configuration for the ODU is:[[BR]]
+ ODU mounted outdoors, on roof, with maximum of 4A required at -48VDC[[BR]]
+ Cable, two conductors, suggested 12AWG, rated for outdoor use, with [http://www.hirose-connectors.com/connectors/H205SeriesGaiyou.aspx?c1=JR&c3=3 Hirose JIS Round Connector, Series JR25WP-4S], 25 mm shell size, waterproof plug with 4 soldered socket contacts. [[BR]]
+ [http://www.meanwell.com/search/SP-200/SP-200-spec.pdf Mean Well SP-200-48 Single Output Switching Power Supply, 110VAC input,  -48VDC output, rated 4.2A or 202.5W ][[BR]]
+
+ 
+ The second solution has an advantage in deployments for which 110V AC circuit is already available at the chosen outdoor installation location.
 Rated power requirements are 8.4A for IDU (in full configuration with all 3 sector boards) and 4A for ODU.
  
@@ -198 +205 @@
   * Two units:  
       * [http://www.meanwell.com/search/SP-320/SP-320-spec.pdf Mean Well SP-320-48 Single Output Switching Power Supplies 48V 6.7A 321.6W]
-      * [http://www.meanwell.com/search/SP-200/SP-200-spec.pdf Mean Well SP-200-48 Single Output Switching Power Supplies 48V 4.2A 202.5W ]
-
-
-Power Feed Connections
-
-As outlined in the [http://groups.geni.net/geni/attachment/wiki/WiMAXInteg/CampusInstallation/BS_INSTALLATION.pdf NEC Installation Manual for Base Station (IMN:BS)] the two unit are using the following:
+      * 
+
+
+
 
   * IDU power feed is based on [http://www.tycoelectronics.com/default.aspx Tyco Electronics / AMP] Dynamic Series D-5000 power connectors with [http://www.tycoelectronics.com/catalog/bin/TE.Connect?C=1&M=BYPN&BML=&LG=1&PN=3-917807-2&PID=58341 plug housing] with 4 [http://www.tycoelectronics.com/catalog/bin/TE.Connect?C=1&M=BYPN&PN=316041-2&I=13 rectangular connectors] (two for each of the positive and negative DC power rails). Suggested wire is 10AWG.
-  * ODU power feed is based on [http://www.hirose-connectors.com/ Hirose] JIS Round Connector Series soldering connectors  [http://www.hirose-connectors.com/connectors/H205SeriesGaiyou.aspx?c1=JR&c3=3 JR25WP-4S] (25 mm shell size, waterproof plug with 4 soldered socket contacts). Suggested wire is 12AWG.
+  * ODU power feed is based on [http://www.hirose-connectors.com/ Suggested wire is 12AWG.
 
 BOM