AMX NETLINX MASTER NXC-ME260 - Manual (Page 9)

Product Information
5 NXC-ME260 NetLinx Master-Ethernet Card/Module
Rear panel LEDs: Ethernet
FIG. 3 Layout of Ethernet LEDs
SPEED
ETHERNET
10/100
FD
A - Activity LED (yellow)
blinks when receiving
Ethernet data packets.
L - Link LED (green) lights when
the Ethernet cables are connected
and terminated correctly.
SPEED LED (green)
lights when transmitting data at
100 Mbps, and is off when
transmitting at 10 Mbps.
FD - Full Duplex LED (green)
lights when running in full duplex
mode, and is off when running
half duplex mode.