pg. 22
ICSLAN LEDs
The ICSLAN LEDs light green when there is an active link on the corresponding ICSLAN port. The light toggles off when a
data packet is sent or received.
The MU-1000, MU-2300 and MU-3300 each have one ICSLAN LED
SERIAL LEDs
The SERIAL LEDs are two sets of LEDs which light to indicate that the RS-232 ports are transmitting or receiving RS-232,
422, or 485 data (red = TX, yellow = RX). The light toggles on when a data packet is sent or received.
The MU-3300 has two sets of eight SERIAL LEDs. The MU-2300 has two sets of four LEDs. TheMU-1300 has two sets of
two LEDs
RELAYS LEDs
The RELAYS LEDs light red to indicate that the corresponding relay port is active. The light toggles off when the relay port
is not engaged.
The MU-3300 has eight RELAY LEDs. The MU-2300 has four RELAY LEDs.
IR/SERIAL LEDs
The IR/SERIAL LEDs light red to indicate that the corresponding IR/Serial port is transmitting data.
The MU-3300 has eight IR/SERIAL LEDs. The MU-2300 has four IR/SERIAL LEDs. The MU-1300 has two IR LEDs.
I/O LEDs
The I/O LEDs light yellow to indicate that the corresponding I/O port is active.
The MU-3300 has eight I/O LEDs. The MU-1300 and MU-2300 have four I/O LEDs.
