dormakaba 8900 EMR Installation Instructions
08280990
03-2020
8900 EMR
10
Wiring: power supply 24 V AC/DC with remote detectors
4.4 Power supply 24V AC/DC with remote detectors
Fig.12
24V AC/DC with remote detectors: The step down transformer is not used in this connection. Perform wiring
connections as illustrated below. Additional units are wired in the same manner as unit #2. Installations using
a combination of SD-2 modules with and without remote area detectors can be wired accordingly by
substituting the wiring diagram section from unit #1, #2, or #3 in step #3 above instead of unit #1, #2, or #3
below with remote detector. The vertical dashed lines indicate where one diagram would be exchanged for
another.
NOTE: Input voltage must match detector voltage.
SD-2
1
SD-2
SD-2
-
+
-
+
-
+
+
-
13
12
1
8
2
9
10
3
4
5
6
7
15
14
11
13
12
1
8
2
9
10
3
4
5
6
7
15
14
11
13
12
1
8
2
9
10
3
4
5
6
7
15
14
11
(3)
(2)
(1)
24 VAC/DC
power supply
Remote
Detector
Remote
Detector
Remote
Detector
