Info: Rx (Receive); Info: Buf (Buffer); Info: Frame (Framing And Edmac) - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Front Panel Operation
5.2.2.4.3

INFO: Rx (Receive)

Rx:1140.000 5000.000 TUR
8P 0.95 D BUF +/-32k
This screen displays the following Receive information:
Display Line
Top Line
Bottom Line
5.2.2.4.4

INFO: Buf (Buffer)

Buffer: Enabled
Size:+/-04096 bits (ENT)
This screen displays if the buffer is enabled or disabled; shows the exact clocking mode (Tx=Rx, or
Tx< > Rx); and the buffer size.
5.2.2.4.5

INFO: Frame (Framing and EDMAC)

This screen displays the framing mode and whether the modem is EDMAC Master or Slave, with
the appropriate address.
Examples are as follows:
Framing: Disabled
(ENTER or CLEAR)
Framing:AUPC-Only,EDMAC2
(ENTER or CLEAR)
Framing: AUPC+EDMAC2
Master,0240 (ENT or CLR)
Framing: AUPC+EDMAC
Slave, 0241 (ENT or CLR)
I
Description
• Receive Frequency and Data Rate (NOTE: Due to space limitations, the resolution of
displayed frequency is limited to 1 kHz, and data rate to 10Hz,)
• FEC Decoder type (VIT = Viterbi, VRS=Viterbi + Reed-Solomon, TCM = Trellis Coded +
Reed-Solomon, TUR = Turbo, UNC = uncoded)
• Demodulation type (Q = QPSK, OQ= OQPSK, B = BPSK, 8P = 8-PSK, 8Q = 8QAM,
16=16-QAM).
• Code Rate (Unc = Uncoded, 2144 = 21/44, then 5/16, 1/2, 2/3, 3/4, 7/8, 0.95)
• Descrambler state (D = Descrambler on, N = Descrambler off, I = IESS-315 On)
• Clocking Mode (SAT = buffer disabled, BUF = buffer enabled, CXE = internal & Clock
Extend RxEnable E1 mode, CXT = internal & Clock Extend RxEnable T1 mode)
• Demod Sweep Acquisition range
• RSI state (I = Receive Spectral Inversion on, N = off)
(Tx=Rx)
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Revision 12
MN/CDM570L.IOM