4 on-line status (j4, j5) – Comtech EF Data SMS-758 User Manual

Page 35

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SMS-758 Modem Protection Switch

Installation

MN/SMS758 Rev. 3

2–7

2.4.4 On-Line Status (J4, J5)

Connectors J4 and J5 provide the output for the modulator and demodulator backup
online status in form C format:

J4 is for the modulator online status.

J5 is for the demodulator online status.

Refer to Section 4.1.7 for a complete explanation of the online status functions.

Two 25-pin female D connectors interface with the online status reporting sections.
Screw locks provide mechanical security for the mating connector.

ON-LINE STATUS INTERFACE

Pin #

J4

Name

J5

Name

1

Mod 1 COM

Demod 1 COM

2

Mod 1 NC

Demod 1 NC

3

Mod 1 NO

Demod 1 NO

4

Mod 2 COM

Demod 2 COM

5

Mod 2 NC

Demod 2 NC

6

Mod 2 NO

Demod 2 NO

7

Mod 3 COM

Demod 3 COM

8

Mod 3 NC

Demod 3 NC

9

Mod 3 NO

Demod 3 NO

10

Mod 4 COM

Demod 4 COM

11

Mod 4 NC

Demod 4 NC

12

Mod 4 NO

Demod 4 NO

13

Mod 5 COM

Demod 5 COM

14

Mod 5 NC

Demod 5 NC

15

Mod 5 NO

Demod 5 NO

16

Mod 6 COM

Demod 6 COM

17

Mod 6 NC

Demod 6 NC

18

Mod 6 NO

Demod 6 NO

19

Mod 7 COM

Demod 7 COM

20

Mod 7 NC

Demod 7 NC

21

Mod 7 NO

Demod 7 NO

22

Mod 8 COM

Demod 8 COM

23

Mod 8 NC

Demod 8 NC

24

Mod 8 NO

Demod 8 NO

25

GROUND

GROUND

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