Comtech EF Data SDM-650B User Manual

Page 59

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SDM-650B Satellite Modem

Configuration

Rev. 5

3–17

Table 3-2 lists the jumper settings for the V.35 interface. These jumpers are factory set
for a specific configuration. Clock selections, signal selections, and loop timing can be
changed upon individual needs.

Table 3-2. AS/0627-2 Rev. E Board Jumper Selection

JP1

TX Clock Select

Normal
Invert
Auto

(See Note Below)

JP2

Interface Select

V.35 (-2)

(See Note Below)

JP3 RX

Data

Normal

(See Note Below)

Buffer

JP8 RX

Clock

Normal

(See Note Below)

Buffer

JP4 Address

Set

1

(See Note Below)

JP5 Address

Set

0

(See Note Below)

JP6 Address

Set

1

(See Note Below)

JP7 Address

Set

1

(See Note Below)

V.35 (-2)

JP9

CTS to RTS

V.35

(See Note Below)

(Processor controller for V.35 and RS-232-C)

JP10 Loop

Timing

Auto
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 V.35 interface type.

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