Comtech EF Data SDM-300L - Manual (Page 55)

Operation SDM-300L Satellite Modem
3–14 Rev. 2
RX CHAN #1 MODE
D&I ENABLED
T1/E1 ENABLED
DISABLED
(Normal D&I/G.703 menus are
operational)
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
RX CHAN #1 DR
1544.0 kbit/s
2048 kbit/s for BYPASS
64 kbit/s for D&I
(Not displayed if DISABLED is
selected)
RX CHAN #2 MODE
ADPCM ENABLED
ADPCM DISABLED
(Allows ADPCM 32 kbit/s
operational)
RX CHAN #3 MODE
ASYNC EIA-232
SYNC EIA-232
ASYNC EIA-422
SYNC EIA-422
AUPC
DISABLED
RX CHAN #3 DR
SYNC EIA-422:
0.6 to 4000.0 kbit/s
(All other models:
0.6 to 64.0 kbit/s)
(Not displayed if AUPC or
DISABLED is selected)
RX CHAN #3 PHASE
NORMAL
INVERTED
(Not displayed if AUPC or
DISABLED is selected)
RX CHAN #4 MODE
ASYNC EIA-232
SYNC EIA-232
ASYNC EIA-485
AUPC
DISABLED
RX CHAN #4 DR
0.6 to 64.0 kbit/s
(Not displayed if AUPC or
DISABLED is selected)
RX CHAN #4 PHASE
NORMAL
INVERTED
(Not displayed if AUPC or
DISABLED is selected)
C
Key:
Notes:
1. The MOD and DEMOD data rates are status only. Only the code rate can be changed. The data rate displayed
includes data rates of all channels plus 1.3 kbit/s (if applicable) fixed overhead.
2. When calculating the symbol rate based on the programmed code rate, D&I overhead (16/15 if enabled)
and Reed-Solomon overhead (126/112 or 219/201 if enabled) must be included.
3. Channels 3 and 4 data rates are in steps or 100 bit/s.
4. AUPC can only be enable on one tributary (Channel 3 or 4).
5. AUPC Channel operates at 600 bit/s.
6. ASYNC communications fixed at 10 bits per word.
7. Frame BER not operational.
Figure 3-9. Configuration Flex Mux (Continued)