Linkwise Technology Pte Ltd REX User Manual
FN Button (Function Button)
This button let user check the IP address of the REX and to reset the IP address to factory default.
To check the current IP address:
1)
Power ON the device
2)
Double-click the FN button and release
3)
The LEDs on the right panel will display the firmware version and IP in numeric sequence.
4)
Double-click the FN button again to exit this function.
To reset the IP address:
1) Power ON the device
2) Push and Hold FN button for > 10 seconds and release.
3) The IP address will be reset to 192.168.1.31
Note: To prevent unauthorized reset, the device should be installed in ABS housing with lock.
Interfacing to Equipment
(Figure 4.4) shows how alarm inputs are wired to REX. Up to 8 dry contacts can be monitored
simultaneously. The contacts shown are either relay contact or switches from within the equipment. Cabling
distance of up to 50 meters between the equipment and REX is possible without causing false triggering. In
noisy environment, shielded cables are recommended. Unused inputs can be left unconnected.
Wiring Instruction: Example
(Figure 4.4) shows the IO connection to REX. Power to REX can be from 12-24 VDC via a 4 way Pluggable
connector at the below part of REX. A 12VDC adapter is supplied as a standard accessory. The digital
inputs are dry contacts type.
The two outputs are relay types with contact ratings of 24V, 1 amp DC max.
Also shown in this figure are two 4-20mA transmitters, 2-wire loop powered. Depending on the power
requirement of the transmitter, a higher voltage may be needed. In this case, change the power supply to a
higher voltage type, but not higher than 24 volts.
