Paradise P300 specifications Frm L, Framer output is also looped, Remote R

Options displayed on the second screen include all of the above, plus:

D/I (L)	The data is looped back after the Drop mux, through the Doppler buffer, back into
	the Insert mux providing a local loop only. The Tx data continues to be transmitted
	and the Rx data from the satellite is ignored. If Drop/Insert baseband processing
	is not active, this loops the data at the output of the baseband block (ie it works
	even if Drop/Insert is not active). ESC & Aux channel data is NOT looped.
FRM (L)	The data is looped after the Framer back into the Deframer providing a local loop
	only. The Tx data continues to be transmitted and the Rx data from the satellite
	is ignored. ESC & Aux channel data (which is present in the data stream at the
	Framer output) is also looped
RS (L)	The data is looped after the Reed-Solomon Encoder / interleaver back into the
	RS Deinterleaver / decoder providing a local loop only. The Tx data continues to
	be transmitted and the Rx data from the satellite is ignored. ESC & Aux channel
	data (which is present in the data stream at the RS codec) is also looped

From the terrestrial port towards the IF ports the loopbacks in the following order test more and more circuitry: Interface, Drop/Insert, Framer, Reed-Solomon, FEC, IF.

REMOTE (R)	This provides a loop of the Rx data after the deframer back into the framer. Tx
	input data is ignored, Rx traffic continues as normal. Incoming ESC & Aux channel
	data is not looped back to the remote site.

P300H P300 Series Modem Installation and Operating Handbook Page 123