4
+
−
T
T
+
−
T
T
COM NC
NO
Tamper (NC)
1b
DC30V, 0.1A
Power
(non-polarized)
DC10.5 - 28.0V
Tamper (NC)
1b
DC30V, 0.1A
Power
(non-polarized)
DC10.5 - 28.0V
Alarm output
1c
DC30V, 0.1A
6
WIRING
1. Terminal Arrangement
2. WIRING LENGTH
Maximum wiring distance (m)
Wire gauge
NR30TD
NR-60TD
NR90TD
DC12V DC24V DC12V DC24V DC12V DC24V
AWG22 or
φ
0.65
220
2000
200
1850
190
1710
AWG19 or
φ
0.90
430
3800
400
3550
360
3300
AWG16 or
φ
1.20
760
6850
700
6350
650
5900
AWG14 or
φ
1.60
1350
12000
1250
11270
1150
10400
Each value in the above table represents the maximum wir-
ing distance (one way) when DC12V or DC24V power source
is used.
When installing 2 or more sets on one wire, the maximum
length is obtained by dividing the maximum wire length given
above by the number of sets installed.
When using a thicker than AWG19 or
φ
0.9 wire, use relays
for connection. It is not possible to connect directly to the
terminal inside of the detector.
+
−
COM
NC
T
T
+
−
COM
NC
T
T
+
−
T
T
+
−
T
T
Tamper input
(b contact point)
Controller
Power
output
Alarm input
(b contact point)
Receiver
Transmitter
Receiver
Transmitter
3. EXAMPLE
CAUTION
Do not use aerial wiring, or malfunction may re-
sult.
Be sure to cover outdoor wiring with pipes, or an
electrical shock or failure may occur.
Be sure to turn off the power during the wiring
work, or an electrical shock or failure may occur.
A
B
Transmitter
Receiver
5
BEAM SPREAD
As the beam has spreads, an optical path is formed when it is reflected against the nearby (highly reflective) wall or the like,
thereby alarm output may be prevented even if the beam from the transmitter to the receiver is interrupted. When a multiple
number of detectors are installed, the beam from another detector may affect and cause malfunction.
The beam spread angle of this unit is about
±
1
°
. Refer to the figure and table below to determine the installation position and
distance to be used when installing a multiple number of units.
Distance and (approximate) beam spread
Distance A
Beam spread width B
15m
0.5m
30m
1.0m
60m
2.0m
90m
3.0m
120m
4.0m
180m
6.0m