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Pg. 2

NDR Instr.

1198jd

Toll Free Technical Support

Phone: 1-800-692-0200

FAX: 1-800-832-3765

WIRING DIAGRAM:     SYSTEM USED FOR SELECTIVE DOOR RELEASE

1
2
3
~

20

E

H

+

-

NDR-20A

+

-

PS-2410A

NE-JA

1

2

3
4

1

2

3
4

NE-JA

1

2

3
~
20    L

1

2

Blk

Wht

NE-DA

RY-PA

#1

RY-PA

#2

RY-PA

#3

BLK

BLK

BLK

YEL

YEL

YEL

External

Terminal Block

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

Closure for Station #1

Closure for Station #2

Closure for Station #3

Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA  98005
(425) 455-0510
FAX (425) 455-0071

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-2410A (NDR-10, 20) or PS-24E (NDR-30, 40).

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.

For additional information about this system,

please refer to the standard NEM instructions.

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

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

AC Power

for Door

Releases

Common for each closure

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