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Comtech EF Data SDM-650B User Manual

Page 53

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SDM-650B Satellite Modem

Configuration

Rev. 5

3–11

Table 3-1. AS/0627-3 Rev. E Board Jumper Selection

JP1

TX Clock Select

Normal
Invert
Auto

JP2

Interface Select

V.35 (-2)
MIL-STD-188/RS-232-C (-3)

(See Note Below)

JP3 RX

Data

Normal

(See Note Below)

Buffer

JP8 RX

Clock

Normal

(See Note Below)

Buffer

JP4 Address

Set

0

(See Note Below)

JP5 Address

Set

0

(See Note Below)

JP6 Address

Set

1

(See Note Below)

JP7 Address

Set

1

(See Note Below)

MIL (-3)

JP9

CTS to RTS

V.35 (Processor controller for
V.35 and RS-232-C)
MIL-STD-188/RS-422

(See Note Below)

(Hard loops CTS to RTS)

JP10 Loop

Timing

REM
ON
OFF

(See Note Below)

JP11

ASYNC Clk Syn (-5)

Cut Shorts

JP12

SCT

1 to 2 Invert
2 to 3 Normal

(See Note Below)

JP13

RD

1 to 2 Invert
2 to 3 Normal

(See Note Below)

JP14

RR

1 to 2 Invert
2 to 3 Normal

(See Note Below)

JP15

DM

1 to 2 Invert
2 to 3 Normal

(See Note Below)

JP16

SD

1 to 2 Invert
2 to 3 Normal

(See Note Below)

Note: Factory jumper settings for MIL-STD-188/RS-422 interface type.


These jumpers are factory set for each given configuration, and should not be changed.
This list is supplied for troubleshooting purposes only.