User Manual

Antaira Technologies - Industrial Ethernet Switches
LMX-0804G-SFP Series Hardware Manual V1.1
9
2.9 Wiring the Fault Alarm Contact
The fault alarm contact is in the middle of
the terminal block connector as the picture
shows below in Figure 2.8. By inserting the
wires, it will detect the fault status including
power failure or port link failure (managed
industrial switch only) and form a normally
open circuit. An application example for the
fault alarm contact is shown in Figure 2.8.
Caution:
 The wire gauge for the terminal block should range between 12 ~ 24AWG
 If only using one power source, jumper Pin 1 to Pin 5 and Pin 2 to Pin 6 to
eliminate power fault alarm.
2.10 Grounding Note
Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run
the ground connection from the ground screw to the grounding surface prior to connecting devices. The
grounding screw symbol is shown blow in Figure 2.15.
Figure 2.15 - Grounding screw
Caution: Using a shielded cable achieves better electromagnetic compatibility.
Figure 2.8 –
Wiring the Fault Alarm Contact