Nexus Wiring Diagram - NHP

Nexus Wiring Diagrams
1. Nexus 105 10-60V DC
From Controller
To Next Unit
Beacon L
Sounder L
Common N
2nd Stage
3rd Stage
S3 S2 0
N
110 V
~
230 V
~
230 V
~
110 V
~
S3 S2 0
N
110 V
~
230 V
~
230 V
~
110 V
~
S1
S1
S2 +
-
S2 +
-
1st Unit
2nd Unit
2. Nexus 110 & Nexus 120 10-60V DC
From Controller
To Next Unit
Beacon
+
-
Sounder
+
-
1st Stage
2nd Stage
3rd Stage
S3
S2
_
+
_
+
S3
S2
_
+
_
+
S1
S1
S2 _ +
S2 _ +
1st Unit
2nd Unit

3. Nexus 105 110/230V AC
From Controller
To Next Unit
Beacon
L
N
N 110 V 2 30 V
~ ~
2 30 V 110 V N
N 110 V 2 30 V
~ ~
2 30 V 110 V N
1st Unit
2nd Unit
Sounder
L
N
4. Nexus 110 & Nexus 120 110/230V AC
From Controller
To Next Unit
Beacon L
Sounder L
Common N
2nd Stage
3rd Stage
S3 S2 0
N
110 V
~
230 V
~
230 V
~
110 V
~
S3 S2 0
N
110 V
~
230 V
~
230 V
~
110 V
~
S1
S1
S2 +
-
S2 +
-
1st Unit
2nd Unit

5. Nexus 110 20-53V AC
From Controller
To Next Unit
Common L
Common N
2nd Stage
3rd Stage
S3 S2 0
N ~
S3 S2 0
N ~
S1
S1
S2 +
-
S2 +
-
1st Unit
2nd Unit
5. General
a) When using an 110V AC supply rather than 230V connect Live to
terminals marked 110V instead of terminals marked 230V.
b) Nexus 105 AC model does not have provision for multi-stage
signalling.
c) Nexus 110 low voltage AC sounder-beacon model does not have
separate beacon connections.
d) Connections for optional Xenon and LED beacons are the same.
e) These wiring diagrams should be used in conjunction with the
installation guide supplied with the products. The installation guide
provides full details of the product specification, installation and
controls.