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Coaxial cable
Connecting a
If a
Treat the extremity of the coaxial cable as shown below before connecting it.
Fold back the mesh wires and secure them with insulation tape in order to prevent them from becoming loose and thus causing a short circuit.
Polyethylene | Mesh wires |
Conductor |
|
wire |
|
7 | 17 |
(5) | (12) |
| Insulation tape |
Alarm signal cables ☞ P. 6
Alarm output terminals (CN24) Connect the provided 4P Alarm cable to these terminals.
Alarm input/output terminals (CN23)
Alarm input terminals (CN26) Connect the provided 6P Alarm cable to these terminals.
Electrical Specification of the Alarm Output Terminals
The figures inside the brackets ( ) are the dimensions
when the coaxial cable is distributed from the side of the cover. (Unit : mm)
If the cable is extended, the signal attenuation is increased, the resolution drops and the noise increases. Should it be required to extend the cable, use a thicker cable or a ca- ble length compensator.
To lead the coaxial cable through the cap on the side of the cover, change the positioning of the cable plate as shown below.
| Provided screw |
| Screw removed in the |
Provided cable | figure on the left |
plate |
|
Control signal cables
N. OPEN
COM.
N. CLOSE
ALARM2+ or ALARM3+
22Ω
ALARM2– or ALARM3–
•The ALARM 1 terminal outputs a contact signal. In the alarm status, the section between N.OPEN and COM is shorted (makes an electri- cal contact) and the section be- tween N.CLOSE and COM is opened (breaks contact).
Rating
Maximum applied voltage: 30 V DC or 24 V AC
Maximum applied current: 2 A
Contact life: 200,000 times of operation
•The ALARM 2 and ALARM 3 ter- minals output
The terminal is ON in the alarm sta- tus.
As these terminals are provided with polarity, make sure that the voltage at the + terminal is higher than that at the – terminal.
Do not apply inverse voltage to pre- vent damage of these terminals.
Rating
Maximum applied voltage: 20 V DC
Maximum drive current: 25 mA
Cable
screwdriver
The connector can be released by
loosening the screws on the two sides as shown in the figure.
Strip the coating of each cable by about 4
mmbefore inserting it. After connecting all of the cables, turn the screws on the side to fasten the connectors.
It is recommended to use a
Cables with a thickness between 16 AWG and 26 AWG can be used. Connect the control signal cables so that the TX+ and TX- signals form a pair and the RX+ and RX- signals form another pair.
Electrical Specifications of Alarm Input Terminals
| ALARM1 | • To prevent penetration of noise in | |
| GND | ||
| the internal circuitry, apply a non- | ||
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| voltage contact signal to the |
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| ALARM input terminal |
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| Never apply a voltage. |
•Use the appropriate menu to select whether the alarm is identified by shorting (making contact) or by opening (break- ing contact).
•Apply an alarm signal for at least 200 ms. If it is shorter, it is not guaranteed that the signal will be recognized as an alarm signal.
5.Attach the cover.
Attach the cover to the ceiling mount by reversing the operations in step 2.
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