Aiphone NDR-10 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

NDR-20A

1
2

NE-NVP

Red

NA-NE

Red
3
~

YEL

BLK

Blk

Grn
Grn

Closure for Station #1

RY-PA

#2

YEL

BLK

20

BLK

Leave green
jumper intact

RY-PA

#1

Equipment for each station that requires
both a constant closure and momentary
closure when a channel is selected:
2 RY-PA relays
1 Diode (1N4001)

E

External

Terminal Block

1

2

3
~
20 L

PS-2420UL

+

-

Individual Components for System:

NDR-n Master station with selective contact output capability (10, 20, 30, 40)
NDR-nA 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

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.

H

+

-

Blk

Grn

Closure for Station #2

RY-PA

#3

YEL

Terminal Block

NE-DA

1

2

Blk

Wht

Normally Open contacts remain
closed as long as master has sub
station selected.

Closure for Station #3

DUAL FUNCTIONS FROM EACH CHANNEL:

BLK

RY-PA

#1

RY-PA

#2

BLK

BLK

YEL

YEL

Momentary closure #1

Constant closure #1

RY-PA

#1

RY-PA

#2

YEL

YEL

1

L

2

NEM Master

H

BLK

+

-

NDR TERMINAL DEFINITIONS:

+ Positive 24V DC

- Negative
1~40 Station number
E Common communication
H Positive output for constant closure
L Positive output for selective closure

Momentary
closure #2

Constant
closure #2

Pg. 1

WIRING DIAGRAM: SYSTEM USED FOR SELECTIVE DOOR RELEASE

NDR-20A

1
2
3

NE-JA

1

NE-JA

1

NE-DA

1

~

To activate
door release,
press button
located above
TALK button.

PS-2420UL

+

-

20

E

H

+

-

1

2

3
~
20 L

External

Terminal Block

BLK

RY-PA

#1

YEL

BLK

2

3
4

RY-PA

YEL

#2

RY-PA

BLK

To convert RY-PA to N/C
(normally closed) contact:
Move one yellow wire
from "NO" to "NC".
(Internal connection,
soldering required.)

#3

2

3
4

YEL

2

Blk

Wht

Closure for Station #1

Closure for Station #2

Closure for Station #3

Common for each closure

Normally Open contacts
are maintained when the
door release button is
being pressed while a
station button is selected.

x x

AC Power

for Door

Releases

OPERATION:

* POWER SWITCH MUST BE ON FOR SYSTEM TO BE OPERABLE.

1. When a station calls in, press the selector button corresponding to the lit LED.

2. To speak to the person at the remote station, press the TALK button or pick up the handset. Release TALK
button to hear reply. Communication via the handset is VOX (voice actuated).

3. If the extra contacts are used as shown in the "camera call-up" diagram, activating a device that is to remain
on for the duration of the call, the station's relay will stay activated as long as the selector button is depressed.

4. If the extra contacts are used as shown in the "selective door release" diagram, press the "door release" button

while the selector button is depressed. This will activate the corresponding relay as long as the button is being
pressed, which will activate the door release mechanism.

5. When the conversation is completed, press the OFF button to the left of the station selector button.
Hang up handset.

SPECIFICATIONS

Power Source: 24V DC at master. Use PS-2420UL.
Commun. Output: 500mW at 20 ohms
Communication: Push-to-talk, release-to-listen (TALK button) or VOX handset at master.

Hands free at sub station.

Calling: Master to sub: By voice only after pretone.

Sub to master: Call button on sub activates tone and LED at master,

remaining active until answered.

Wiring: 2 conductors homerun to sub station, or loop multi-conductor with 1 common

+ 1 individual wire per sub station on wire run.
Separate 2 conductor from RY-PA to external device.
Shielded cable is recommended.

Use Aiphone #822202 (22AWG)

or #821802 (18AWG) wire (2 cond.).

Wiring Distance: 420' with 22AWG; 1,000' with 18AWG.

Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
[phone]
FAX [phone]

For additional information about this system,

please refer to the standard NEM instructions.

Toll Free Technical Support

Phone: [phone]

FAX: [phone]

Pg. 2

NDR Instr.

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