Specifications

SDM-309B Satellite Modem External Channel Unit
MN/U-SDM309B Rev. # C-C–15
Table C-1 AS/0627-3 Rev E Board Jumper Selection
JP1 TX Clock Select Normal
Invert
Auto*
JP2 Interface Select V.35 (-2)
Mil-188/RS232 (-3)*
JP3 RX Data Normal*
Buffer
JP8 RX Clock Normal*
Buffer
JP4 Address Set 0*
JP5 Address Set 0*
JP6 Address Set 1*
JP7 Address Set 1*
MIL (-3)
JP9 CTS to RTS V.35 (Processor controller for V.35 & RS232)
Mil 188/RS422* (Hard loops CTS to RTS)
JP10 Loop Timing REM
On
Off*
JP11 Asyn Clk Syn (-5) Cut Shorts
JP12 SCT 1 to 2 Invert
2 to 3 Normal*
JP13 RD 1 to 2 Invert
2 to 3 Normal*
JP14 RR 1 to 2 Invert
2 to 3 Normal*
JP15 DM 1 to 2 Invert
2 to 3 Normal*
JP16 SD 1 to 2 Invert
2 to 3 Normal*
*Indicates Factory jumper settings for MIL-188/RS422 interface type.
Table C-2 AS/0627-3 Rev C Board Jumper Selection
JP1 Clock Select Normal
Invert
Auto*
JP2 Interface Select V.35 (-2)
Mil-188/RS232 (-3)*
JP3 RX Data Normal*
Buffer
JP8 RX Clock Normal*
Buffer
JP4 Address Set 1*
JP5 Address Set 1*
JP6 Address Set 0*
JP7 Address Set 0*
MIL (-3)