Comtech EF Data SMS-758 User Manual

Page 103

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SMS-758 Modem Protection Switch

Theory of Operation

MN/SMS758 Rev. 3

4–43

1

. . . . . . .

.

JP6

.

.

JP2

JP3

. .

. .

1

1

PRIME
INTERFACE
SWITCH

AS/1695

15
16

. . . .

. . . .

JP1

1
2

. . . .

1

JP7

. . . .

. . . .

.

JP2

. .

1

.

JP3

. .

1

Rev - Location

Rev A Location

Figure 4-16. Prime IBS Jumper Diagram

Table 4-7. Prime IBS Jumpers

Operation

Jumper

Pins

Comments

Normal

JP1

5 through 6
7 through 8
13 through 14
15 through 16

Independent RST
and CTS

Special

JP1

1 through 2
3 through 4
9 through 10
11 through 12

CTS, tied to RTS,
TXD of ESC on
CTS lines

V.35, RS-422

JP2 and JP3

1 thorugh 2

G.703

JP2 and JP3

2 through 3

V.35, RS-422

JP6

Remove all jumpers

G.703

JP6

1 through 2
3 through 4
5 through 6
7 through 8

V.35, RS-422

JP7

Remove all jumpers

G.703

JP7

1 through 2
3 through 4

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