Appendix F: Alarm I/O Pin Definition - Speco DVR-4TN User 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
RS485 D+
1
RS485 D-
2
Ground
3
Normal Close A
4
Common Node A
5
Normal Open A
6
Ground
7
DVR-8TN Alarm I/O
Pin Definition
RS485 D+
1
RS485 D-
2
Ground
3
Normal Close A
4
Common Node A
5
Normal Open A
6
Ground
7
DVR-4TN/8TN/16TN/16TS/16TT Series
SPECO TECHNOLOGIES 01/08
Pin Definition
Normal Close B
8
Common Node B
9
Normal Open B
10
Alarm In 1
11
Alarm In 2
12
Alarm In 3
13
Alarm In 4
14
Pin Definition
Normal Close B
8
Common Node B
9
Normal Open B
10
Alarm In 1
11
Alarm In 2
12
Alarm In 3
13
Alarm In 4
14
User's Manual
Pin Definition
Reserved
15
Reserved
16
Reserved
17
Reserved
18
Reserved
19
Reserved
20
Pin Definition
Alarm In 5
15
Alarm In 6
16
Alarm In 7
17
Alarm In 8
18
Reserved
19
Reserved
20
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