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How do I set up the Reed-Solomon Option in the PSM-500/4900 to be compatible with the PSM-2100 Modem?

April 26, 2017compatible modem option psm-2100 psm-500 reed-solomon

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How do I set up the Reed-Solomon Option in the PSM-500/4900 to be compatible with the PSM-2100 Modem?

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The PSM-500/4900 Modem is capable of varying the parameters for the Reed-Solomon Codec beyond the capabilities of the PSM-2100. To maintain compatibility with the PSM-2100 specific similarly named options are available in the PSM-500/4900. When enabled the RS FEC Mode should be set to “IESS-308”. This will automatically set the “n”, “k” and “Depth” options to 126, 112 and 4 respectively up to 1.544 Mbps. At or above that rate the PSM-500/4900 “n”, “k” and “Depth” options must be manually set to 126, 112 and 4 respectively using the “Custom” Mode. The 500/4900’s “IESS-309” and other “Custom” modes are not compatible with the PSM-2100.