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DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
TM051 - Rev. 5.8 4-11
Reed-Solomon (menu): These selections are visible only when the Reed-
Solomon Option is installed.
Enable/Disable {Enable, Disable}
Allows the user to Enable/Disable the Reed-Solomon
Encoder.
RS Codes {Refer to Appendix A for valid n/k values}
Displays the currently used n, k Reed-Solomon Codes.
In Closed Net Mode, the user may select custom RS
Codes.
RS Depth {4, 8}
Allows the user to select the Reed-Solomon interleaver
depth. In Closed Net Mode, a depth of 4 or 8 may be
selected.
4.3.4 Interface Menu Options and Parameters
Tx Setup (menu):
Tx Ckt ID: Allows the user entry of a Tx Circuit Identifier. Circuits
can be given up to an 11 Character alphanumeric identity
such as LINK1.
Tx Type: {G.703, V.35, RS-232, RS-422}
Allows the user to select the Transmit Type.
Tx Clock: {SCTE (External), SCT (Internal), SCR, EXT CLK}
Allows the user to select the Transmit Clock Source.
Clk Polarity: {Auto, Normal, Inverted}
Allows the user to select the Clock Polarity for the Tx
Terrestrial Clock relative to the Tx Data. “Auto” detects
wrong polarity and automatically corrects. If G.703
Interface is selected, this selection cannot be changed.
SCT Source: {INTERNAL (SCT), SCR (Rx SAT CLK)}
Allows the user to select SCT Source to be either the
SCT Oscillator or RX Satellite Clock. Rx SAT CLK is
used for loop timing.
ESC CH#1 {+10 to -20}
Available only in IDR Mode at a valid IDR Rate. Controls
the volume of the ESC Channels.
ESC CH#2 See above.