User’s Manual

Appendix F: Alarm I/O Pin Definition

The tables below list the pin definitions of alarm I/O located on the rear panel of the

DVR-4TN/8TN/16TN/16TS/16TT series unit.

DVR-4TN Alarm I/O

Pin

Definition

 

Pin

 

Definition

 

Pin

 

Definition

1

RS485 D+

 

8

 

Normal Close 2

 

15

 

Reserved

2

RS485 D-

 

9

 

Common Node 2

 

16

 

Reserved

3

Ground

 

10

 

Normal Open 2

 

17

 

Reserved

4

Normal Close 1

 

11

 

Alarm In 1

 

18

 

Reserved

5

Common Node 1

 

12

 

Alarm In 2

 

19

 

Reserved

6

Normal Open 1

 

13

 

Alarm In 3

 

20

 

Reserved

7

Ground

 

14

 

Alarm In 4

 

21

 

-

DVR-8TN Alarm I/O

Pin

Definition

 

Pin

 

Definition

 

Pin

 

Definition

1

RS485 D+

 

8

 

Normal Close 2

 

15

 

Alarm In 5

2

RS485 D-

 

9

 

Common Node 2

 

16

 

Alarm In 6

3

Ground

 

10

 

Normal Open 2

 

17

 

Alarm In 7

4

Normal Close 1

 

11

 

Alarm In 1

 

18

 

Alarm In 8

5

Common Node 1

 

12

 

Alarm In 2

 

19

 

Reserved

6

Normal Open 1

 

13

 

Alarm In 3

 

20

 

Reserved

7

Ground

 

14

 

Alarm In 4

 

21

 

-

DVR-4TN/8TN/16TN/ 16TS/16TT Series

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Speco Technologies DVR-8TN Appendix F Alarm I/O Pin Definition, DVR-4TN/8TN/16TN/16TS/16TT series unit DVR-4TN Alarm I/O