Table 3-6. Asynchronous Overhead Jumper Table; Table 3-7. Data Rate Jumper Table - Comtech EF Data SDM-650B Installation And Operation Manual

Configuration
1.544 Mbit/s
2.048 Mbit/s
2.048 Mbit/s
6.312 Mbit/s
6.312 Mbit/s
8.448 Mbit/s
3–34

Table 3-6. Asynchronous Overhead Jumper Table

JP # Pin #
JP1 1 to 3, and 2 to 4
3 to 5, and 4 to 6
JP2 1 to 2
3 to 4
5 to 6
JP3 1 to 2
2 to 3
JP10 1 to 2
2 to 3
JP11 1 to 2
3 to 4
JP12 1 to 2
2 to 3
JP8, JP9, JP13 1 to 2
2 to 3

Table 3-7. Data Rate Jumper Table

Data Rate Impedance
BAL−100
BAL−120
UNBAL−75
BAL−110
UNBAL−75
UNBAL−75
Function
V.35, RS-422, MIL-STD-188
G.703
Auto TX CLK Phase Select
Fixed Phase, Normal
Fixed Phase, Inverted
G.703 data activity detect
TX Terr CLK activity detect
V.35 operation
RS-422, MIL-STD-188 operation
Normal SCT output
TX CLK chained to SCT output
2-wire operation
4-wire operation
Asynchronous
RS-485
RS-232-C
JP4 JP5 JP6
OFF ON ON
OFF ON ON
OFF ON ON
1 to 2 OFF OFF
OFF OFF OFF
OFF ON ON
SDM-650B Satellite Modem
JP7 Voltage
OFF 5.8 Vp-p
OFF 5.8 Vp-p
OFF 4.6 Vp-p
OFF 1.8 Vp-p
OFF 3.3 Vp-p
OFF 4.8 Vp-p
Rev. 5