Operational Interface Procedures for the South Pole TDRSS Relay ...

While TDRS-1 is supported at the White Sands Ground Terminal (WSGT), the router is
connected by Fiber Optic Transceivers (FOT) through the WSC Inter-Facility Link (IFL)
to the Cisco 4500 router at the Second TDRSS Ground Terminal (STGT). The data then
is forwarded to the Integrated Digital Network Exchange (IDNX) equipment at WSC
which multiplexes/switches the data in a NASA Integrated Services Network (NISN)
channel. The data is then placed on the NASA Science Internet (NSI) Internet and
routed to the requested destination.
e. High data rate K-band service data is forwarded from the WSC LRDS to the White
Sands File Server (WSFS).
f. Users data files are then accessed by the users by FTP’ing them from the WSFS fileserver
via the NSI.
NOTE
See Figure 1-1, SPTR Data Flow Diagram.
1.3.3 GOES/LES Data Flow Description
1.3.3.1 General
a. South Pole scientific data communications also is supported by the GOES-3 and LES-9
satellites for the National Science Foundation (NSF). The communications systems are
operated and maintained by University of Miami, Malabar Ground Station, located in
Malabar, Florida.
b. User traffic data in IP format is routed via the NSI to the University of Miami Network
and then forwarded to the router at the Malabar Ground Station. From there the
command data is routed via either the GOES-3 or LES-9 satellite to the South Pole.
User data cannot be routed simultaneously via both satellites but can be routed
simultaneously via either satellite or the TDRS F1 satellite. The NSI router scheme
employed for co-existence will route traffic via TDRSS first.
NOTE
When real time communication is not possible, message traffic can
be stored on a 24-hour a day file server at the Malabar Ground
Station to be forwarded as soon as possible when the GOES-
3/LES-9 links become available or can be sent via the SPTR.
c. User data is transmitted from the South Pole LAN in TCP/IP format via either the
GOES-3 or LES-9 satellite to the Malabar Ground Station and then forwarded to the
users via the University of Miami network and the NSI. See figure 1-1, SPTR Data Flow
Diagram.
a2302s1 1-3 532-OIP-NCC/SPTR