KFRL Clause Samples

KFRL. The KFRL consists of communication systems and functions provided by the Ground Networks for support of space flight operations, testing, and simulations. This includes data and voice combined to form the telemetry and command stream transmission. The Forward Link function utilizes the KFRL system to process commands and A/G voice (V1 and V2) and then transmits the Forward Link Pulse Code Modulation (PCM) stream to the uplink site. The two Astrocomm analog voice channels and the LPS- generated Forward Link command stream (with voice fill) are sent into the KFRL system where the voice is digitized and multiplexed into the Forward Link stream. The Forward Link stream (32 Kbps/72Kbps) is then encrypted, if required, and blocked for transmission through the NISN mission network(s) to the ground station at MILA, JSC, ▇▇▇▇▇▇ Flight Research Center (DFRC), or White Sands Complex (WSC). Additionally, the KFRL system can route both Forward Link and Forward Link Echo streams from any uplink site to RPS for recording purposes. These data streams are de-blocked and decrypted prior to transmission to RPS. The KFRL system will process the Return Link PCM stream (192/96 Kbps) by first de- blocking the data, decrypting it if necessary, demultiplexing the data and two voice channels (V1 and V2), generating the output Operational Downlink PCM stream (128/64 Kbps), and finally distributing the data and analog voice channels to the appropriate LPS Firing Room, RPS, and Astrocomm. Nominally, when the source is either MILA/PDL, JSC, DFRC, or WSC, the Return Link (or direct Operational Downlink from DFRC) will be decrypted, as required, then routed directly to the appropriate LPS Firing Room and RPS without any further processing. KFRL is in the installation phase with completion anticipated prior to contract start. These systems support the services referenced in the PWS 3.3.2.