Aiphone Intercom System NDR 10 NDR 20 NDR 30 NDR 40 NDR 10A NDR 20A NDR 30A NDR 40A User Manual

Special  
Order  
Products  
NDR  
NDR Lamp Memory Master Station with External Control Capability  
NDR-10  
NDR-20  
NDR-30  
NDR-40  
NDR-10A NDR-20A NDR-30A NDR-40A  
- INSTRUCTIONS -  
The NDR Lamp Memory and External Control System is designed for communication between a central master  
station and remote intercom stations. In addition to communication to remote locations, an external device can be  
activated, such as activating a CCTV camera when the associated sub station is selected, or selectively controlling  
the corresponding door strike or maglock. All other features, functions, and components are the same as the  
standard NEM system.  
WIRING DIAGRAM: SYSTEM USED FOR CCTV CAMERA CALL-UP  
NE-NVP  
Red  
NDR-20A  
NA-NE  
Red  
1
2
3
NE-DA  
1
~
20  
Blk  
2
Blk  
Grn  
Grn  
Grn  
Leave green  
jumper intact  
Blk  
E
Wht  
External  
Terminal Block  
RY-PA  
#1  
1
2
Closure for Station #1  
BLK  
YEL  
Normally Open contacts remain  
closed as long as master has sub  
station selected.  
RY-PA  
#2  
Closure for Station #2  
BLK  
YEL  
BLK  
3
~
20  
RY-PA  
#3  
YEL  
Closure for Station #3  
L
Terminal Block  
DUAL FUNCTIONS FROM EACH CHANNEL:  
H
PS-2420UL  
RY-PA  
#1  
1
BLK  
Momentary closure #1  
YEL  
YEL  
+
-
+
-
Equipment for each station that requires  
both a constant closure and momentary  
closure when a channel is selected:  
2 RY-PA relays  
RY-PA  
#2  
Constant closure #1  
BLK  
L
1 Diode (1N4001)  
RY-PA  
#1  
2
Momentary  
closure #2  
YEL  
YEL  
BLK  
NEM Master  
RY-PA  
#2  
Constant  
closure #2  
BLK  
Individual Components for System:  
H
NDR-n  
NDR-nA  
Master station with selective contact output capability (10, 20, 30, 40)  
Master station w/handset and selective contact output capability (10, 20, 30, 40)  
+
-
ND-20AS 20-call Add-on Selector with selective output capability  
ND-40AS 40-call Add-on Selector with selective output capability  
RY-PA  
Relay for selective output (1 per station requiring external contact)  
PS-2420UL 24V DC, 2A Power Supply  
N-series  
Any model sub station with NA- or NE- prefix  
NDR TERMINAL DEFINITIONS:  
+
-
Positive 24V DC  
Negative  
IMPORTANT:  
1. RY-PA must be used for each additional contact  
to isolate AC voltage from the intercom circuit.  
2. Extra contact connections and L are on separate  
terminal block. NDR-30/40 have two terminal blocks.  
1~40 Station number  
E
H
L
Common communication  
Positive output for constant closure  
Positive output for selective closure  
Pg. 1  
 

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