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2.6 Alarm input / output installation
The EDR920/1640 alarm inputs can be used for recording start or recording rate adjustment.
Furthermore, alarm reactions such as camera switching to monitors, buzzer, e-mail and network alarm
are available. An alarm output relay can be switched if required.
EDR920 provides 9 alarm inputs, EDR1640 provides 16. All inputs are programmable NO/NC.
Inputs have to be switched through dry contacts.
The 4 output relays provide a dry NO/NC contact.
All settings are programmed in the ALARM menu.
Use either the 37-pin Sub-D plug or the included adaptor board for connection.
NC contact alarm input connection:
Output relay in idle state:
DVR
PIN # NAME PIN # NAME
1 GND 19 GND
2 ALM 1 20 ALM-NC0
3 ALM 2 21 ALM-NO0
4 ALM 3 22 ALM-COM0
5 ALM 4 23 ALM-NC1
6 ALM 5 24 ALM-NO1
7 ALM 6 25 ALM-COM1
8 ALM 7 26 ALM-NC2
9 ALM 8 27 ALM-NO2
10 ALM 9 28 ALM-COM2
11 ALM 10 29 ALM-NC3
12 ALM 11 30 ALM-NO3
13 ALM 12 31 ALM-COM3
14 ALM 13 32 ALMRSTO
15 ALM 14 33 REC
16 ALM 15 34 GIN1O
17 ALM 16 35 DISKFULL
18 GND 36 GO1
Pin assignment Sub-D plug Pin assignment adaptor board
HOST
PIN # NAME PIN # NAME
1 GND 21 GND
2 ALMIN 1 22 ALM_NC1
3 ALMIN 2 23 ALM_NO1
4 ALMIN 3 24 ALM_COM1
5 ALMIN 4 25 ALM_NC2
6 ALMIN 5 26 ALM_NO2
7 GND 27 ALM_COM2
8 ALMIN 6 28 GND
9 ALMIN 7 29 ALM_NC3
10 ALMIN 8 30 ALM_NO3
11 ALMIN 9 31 ALM_COM3
12 ALMIN 10 32 ALM_NC4
13 GND 33 ALM_NO4
14 ALMIN 11 34 ALM_COM4
15 ALMIN 12 35 GND
16 ALMIN 13 36 ALMRST
17 ALMIN 14 37 REC_IN
18 ALMIN 15 38 SPARE_IN
19 ALMIN 16 39 DISK_FULL
20 GND 40 SPARE_OUT
NO contact alarm input connection:
Descriptions:
ALMINxx: Alarm input xx (1~16)
GND: common ground for alarm inputs
ALM_COMx: output relay x , contact root
ALM_NOx: output relay x , NO contact
ALM_NCx: output relay x , NC contact
ALMRST: Alarm reset, control input for alarm
reset, for dry NO contact
towards GND
DISKFULL: OC output contact for signal
„HDD full“, switches to GND
REC_IN: Control contact for recording start
SPARE_IN / OUT: reserved
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