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SDM-309B Satellite Modem
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*Indicates Factory jumper settings for MIL-188/RS422 interface type.
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MN/U-SDM309B Rev. #
Table C-1 AS/0627-3 Rev E Board Jumper Selection
TX Clock Select
Interface Select
RX Data
RX Clock
Address Set
Address Set
Address Set
Address Set
CTS to RTS
Loop Timing
Asyn Clk Syn (-5)
SCT
RD
RR
DM
SD
Table C-2 AS/0627-3 Rev C Board Jumper Selection
Clock Select
Interface Select
RX Data
RX Clock
Address Set
Address Set
Address Set
Address Set
Normal
Invert
Auto*
V.35 (-2)
Mil-188/RS232 (-3)*
Normal*
Buffer
Normal*
Buffer
0*
0*
1*
1*
MIL (-3)
V.35 (Processor controller for V.35 & RS232)
Mil 188/RS422* (Hard loops CTS to RTS)
REM
On
Off*
Cut Shorts
1 to 2 Invert
2 to 3 Normal*
1 to 2 Invert
2 to 3 Normal*
1 to 2 Invert
2 to 3 Normal*
1 to 2 Invert
2 to 3 Normal*
1 to 2 Invert
2 to 3 Normal*
Normal
Invert
Auto*
V.35 (-2)
Mil-188/RS232 (-3)*
Normal*
Buffer
Normal*
Buffer
1*
1*
0*
0*
MIL (-3)
External Channel Unit
C-C–15
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