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Pin Definition of Alarm I/O & RS-485, and Audio In
Alarm I/O & RS-485:
DVR-4WM:
Pin Definition Pin Definition Pin Definition Pin Definition
1
Alarm Out Open
5
Alarm In 1
9
Alarm Out Close
13
GND
2
Alarm Out COM
6
Alarm In 2
10
GND
14
GND
3
RS485 D+
7
Alarm In 3
11
GND
15
GND
4
RS485 D−
8
Alarm In 4
12
GND
15pin D-sub connector I/O cable for 4TL: Speco # DVR4TLALMCBL
DVR-8WM & DVR-16WM:
Pin Definition Pin Definition Pin Definition
1
Alarm Out Open
10
Alarm In 5
19
Alarm In 10
(DVR-16WM)
2
Alarm Out COM
11
Alarm In 6
20
Alarm In 11
(DVR-16WM)
3
RS485 D+
12
Alarm In 7
21
Alarm In 12
(DVR-16WM)
4
RS485 D−
13
Alarm In 8
22
Alarm In 13
(DVR-16WM)
5
Reserved
14
Alarm Out Close
23
Alarm In 14
(DVR-16WM)
6
Alarm In 1
15
Reserved
24
Alarm In 15
(DVR-16WM)
7
Alarm In 2
16
Reserved
25
Alarm In 16
(DVR-16WM)
8
Alarm In 3
17
Reserved
9
Alarm In 4
18
Alarm In 9 (DVR-16WM)
25p D-sub I/O cable for 8/16TL: Speco # DVR816TLALMCBL
Audio In (DVR-8WM & DVR-16WM only):
Pin Definition Pin Definition Pin Definition
1
Audio 1
10
GND
19
Audio 12 (DVR-16WM)
2
Audio 3
11
GND
20
Audio 14 (DVR-16WM)
3
Audio 5
12
GND
21
Audio 16 (DVR-16WM)
4
Audio 7
13
Reserved
22
GND
5
Audio 9 (DVR-16WM)
14
Audio 2
23
GND
6
Audio 11 (DVR-16WM)
15
Audio 4
24
GND
7
Audio 13 (DVR-16WM)
16
Audio 6
25
Reserved
8
Audio 15 (DVR-16WM)
17
Audio 8
9
GND
18
Audio 10 (DVR-16WM)
25p D-sub Audio cable for 8/16TL: Speco # DVR816TLAUDCBL
Power On the DVR
Please follow the proper power on procedures to avoid damaging the DVR.
• Connect all necessary components, e.g. monitor and cameras, before powering the DVR.
• Check the type of power source before connecting the power adaptor to the DVR. The
acceptable power input is between AC110V ~ AC240V.