Comtech EF Data SDM-300A, Installation And Operation Manual

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SDM-300A Satellite Modem Operation
Rev. 4 3–31
R X C H A N # 1 M O D E
D & I E N A B L E D
T 1 / E 1 E N A B L E D
D I S A B L E D
( N o r m a l D & I / G . 7 0 3 M e n u s a r e
Optional)
ACCESS TO
SUBMENU
CONDITIONAL OR
OPTION-DEPENDENT
Parameter Information
R X C H A N # 1 D R
1544.0 kbit/s
2048 kbit/s for BYPASS
64 kbit/s for D&I
R X C H A N # 2 M O D E
A D P C M E N A B L E D
A D P C M D I S A B L E D
R X C H A N # 3 M O D E
A S Y N C E I A - 2 3 2
S Y N C E I A - 2 3 2
A S Y N C E I A - 4 2 2
S Y N C E I A - 4 2 2
A U P C
D I S A B L E D
R X C H A N # 3 D R
S Y N C E I A - 4 2 2 :
0.6 to 4000.0 kbit/s
(All other modes:0.6 to 64.0 kbit/s)
R X C H A N # 3 P H A S E
N O R M A L
I N V E R T E D
R X C H A N # 4 M O D E
A S Y N C E I A - 2 3 2
S Y N C E I A - 2 3 2
A S Y N C E I A - 4 8 5
A U P C
D I S A B L E D
R X C H A N # 4 D R
0.6 to 64.0 kbit/s
R X C H A N # 4 P H A S E
N O R M A L
I N V E R T E D
C
Key:
Figure 3-9. Configuration Flex Mux (Continued)
Notes:
1. The modulator data rate is status only. Only the code rate can be changed. The
data rate displayed includes data rates of the channels; in addition, 1.3 kbit/s fixed
overhead (if applicable).
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 of 100 kbit/s.
4. AUPC can only be enabled on one tributary (#3 or #4).
5.
AUPC channel operates at 600 bits.
6. Async communications fixed at 10 bit word format.
7. Frame BER is not operational.