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Esc “common” connector pin assignments \(j18 and – Comtech EF Data SMS-451 User Manual

Page 44

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SMS-451 Satellite Switch

Revision 0

Installation

MN/SMS451.IOM

2-18

2.3.3.3

ESC “COMMON” Connector Pin Assignments (J18 and J28)

The ESC “2” common connector is the customer interface provided on a 50-pin female D
connector. Screw locks are provided for mechanical security of the mating connector.

Signal Function

Name

Pin #

GROUND

C-GND

1, 9, 50

SEND 64 KBPS DATA 1

C-SD1-A
C-SD1-B

34
18

SEND 64 KBPS DATA 2

C-SD2-A
C-SD2-B

19

3

SEND 64 KBPS TIMING 2

C-ST2-A
C-ST2-B

36
20

SEND 64 KBPS DATA 3

C-SD3-A
C-SD3-B

4

37

SEND 64 KBPS TIMING 3

C-ST3-A
C-ST3-B

21

5

SEND 64 KBPS DATA 4

C-SD4-A
C-SD4-B

38
22

SEND 64 KBPS TIMING 4

C-ST4-A
C-ST4-B

6

39

SEND 64 KBPS DATA 5

C-SD5-A
C-SD5-B

23

7

SEND 64 KBPS TIMING 5

C-ST5-A
C-ST5-B

40
24

TX OCTET

C-TOCT-A
C-TOCT-B

8

41

SPARE C-SPR-1

C-SPR-2
C-SPR-3

25
42
26

RX OCTET

C-ROCT-A
C-ROCT-B

10
43

RECEIVE 64 KBPS TIMING 5

C-RT5-A
C-RT5-B

27
11

RECEIVE 64 KBPS DATA 5

C-RD5-A
C-RD5-B

44
28

RECEIVE 64 KBPS TIMING 4

C-RT4-A
C-RT4-B

12
45

RECEIVE 64 KBPS DATA 4

C-RD4-A
C-RD4-B

29
13

RECEIVE 64 KBPS TIMING 3

C-RT3-A
C-RT3-B

46
30

RECEIVE 64 KBPS DATA 3

C-RD3-A
C-RD3-B

14
47

RECEIVE 64 KBPS TIMING 2

C-RT2-A
C-RT2-B

31
15

RECEIVE 64 KBPS DATA 2

C-RD2-A
C-RD2-B

48
32

RECEIVE 64 KBPS TIMING 1

C-RT1-A
C-RT1-B

16
49

RECEIVE 64 KBPS DATA 1

C-RD1-A
C-RD1-B

33
17