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LAN Cable Distance Survey for Open RPG -- Dual RPGs
Purpose of Survey: The purpose of this survey is to determine cable distance between the
WFO AWIPS Plaintree Local Area Network (LAN) switch and the I/O panel of the Open RPG.
The Radar Operations Center (ROC) needs this information to order LAN cables for an AWIPS
LAN to RPG LAN connection project.
Background: The proposed LAN interface between AWIPS and NWS radars will dramatically
increase the bandwidth available for receiving weather products. The increase in bandwidth
is required to support timely transmission of digital products, which will be included with the
Open RPG. The LAN interface will further support central data collection of the expanded
Archive III list and NIDS providers. Although the hardware will be deployed in conjunction
with the Open RPG (ORPG) system, future target software releases are required for both
AWIPS and RPG to make the interface functional. The LAN interface will eventually replace
the 56Kbps X.25 serial interface between the co-located WFO AWIPS and RPG.
Effectivity:
This FAXBack survey only applies to the NWS WSR-88D RPG systems identified in Table 1
below. These sites have two co-located RPGs or will have following Open RPG deployment.
If your WSR-88D system is NOT listed in Table 1, please disregard this survey.
| Table 1 - WSR-88D RPG Systems with Co-located AWIPS |
| Descriptive Name of AWIPS |
Co-located RPG #1 |
Co-located RPG #2 |
| Birmingham (BMX) |
Birmingham (BMX) |
NE Alabama (Hytop) |
| Phoenix (PSR) |
Phoenix (PSR) |
Yuma |
| San Diego (SGX) |
San Diego (SGX) |
Santa Ana |
| Paducah (PAH) |
Paducah (PAH) |
Evansville, IN |
| Salt Lake City (SLC) |
Salt Lake City (SLC) |
Cedar City |
| Tulsa (TSA) |
Tulsa (TSA) |
Western Arkansas |
| NWS Training Center (496) (TTCM7) |
Training Center #1 NWSTC |
Training Center #2 NWSTC |
Survey Instructions
At WFO Site:
- Locate the planned site of the Open RPG cabinet.
- Locate the Primary WFO AWIPS Plaintree LAN Switch.
- Measure the distance, in feet, including all turns, bends, drops, etc., necessary to
install a cable from the site of the Open RPG cabinet to the Primary AWIPS Plaintree
LAN switch.
- Repeat steps 1-3 for additional Open RPGs.
- Fax the completed Table 2 (last page of this survey) to the WSR-88D Hotline.
Responses are needed by June 1, 2001.
| Table 2 - Estimated LAN Cable Distances |
Date: _____________
Name of Person Completing Survey: __________________________________
AWIPS System Name: ______________________________________________
AWIPS/WFO ID: ________________ |
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WSR-88D System Name: ____________________________________________
RPG 4 Ltr ID: ________________ |
| Distance (feet) of Cable Run from Open RPG to AWIPS: |
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WSR-88D System Name: ____________________________________________
RPG 4 Ltr ID: ________________ |
| Distance (feet) of Cable Run from Open RPG to AWIPS: |
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