Special
Order
Products
NDR
NDR Lamp Memory Master Station with External Control Capability
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
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20
E
External
Terminal Block
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Leave green |
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Grn |
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jumper intact |
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NE-DA
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2
Blk
Wht
| 1 | BLK | YEL Closure for Station #1 |
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| Normally Open contacts remain |
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| #1 |
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| closed as long as master has sub |
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| BLK | Closure for Station #2 |
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| station selected. |
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| #2 |
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| BLK | YEL | Closure for Station #3 |
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| #3 |
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| 20 | L |
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| H |
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| Terminal Block |
| DUAL FUNCTIONS FROM EACH CHANNEL: | |||||
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+ | + |
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| BLK | YEL | Momentary closure #1 | |||
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| Equipment for each station that requires |
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| both a constant closure and momentary |
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| YEL |
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| closure when a channel is selected: |
| BLK | Constant closure #1 | |||||||
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| L | #2 | |||||||||
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| 1 Diode (1N4001) |
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| 2 |
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| BLK | YEL | Momentary | |
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| #1 | closure #2 | ||
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| NEM Master |
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| BLK | YEL | Constant | |
Individual Components for System: |
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| closure #2 | |||||||
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Master station with selective contact output capability (10, 20, 30, 40) |
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Master station w/handset and selective contact output capability (10, 20, 30, 40) | + | |||
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Relay for selective output (1 per station requiring external contact) |
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24V DC, 1A Power Supply for |
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24V DC, 2A Power Supply for | NDR TERMINAL DEFINITIONS: | |||
Any model sub station with NA- or NE- prefix | ||||
+ | Positive 24V DC | |||
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IMPORTANT: | - | Negative | ||
1. | 1~40 | Station number | ||
to isolate AC voltage from the intercom circuit. | E | Common communication | ||
2. Extra contact connections and L are on separate | ||||
H | Positive output for constant closure | |||
terminal block. | ||||
L | Positive output for selective closure | |||
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Pg. 1