The LED state for this M013 Port.
M013 module has 5 LEDs per port. The current bit
definitions for the DS3 Port are:
T3EN 0 - GRN OFF (0 off, 1 on)
LOS 1 - RED OFF (0 off, 1 on)
OOF 2 - RED OFF (0 off, 1 on)
AIS 3 - RED OFF (0 off, 1 on)
RAI 4 - YEL OFF (0 off, 1 on)