Specifications

ICSLan Device Control Boxes
4
ICSLan Device Control Boxes
Detailed LED Behavior
The table below provides detailed descriptions of all blink patterns for the Status and A/L LEDs on the front
panels of all EXB Modules.
The I/O LED column refers to port-specific Input and/or Output LEDs on a particular model. For
example, I/O includes all serial TX and RX LEDs on a COM2 or all Relay output LEDs on a
REL8.
The term “Light Show” refers to the back-and-forth scanning pattern of the LEDs associated with
the I/Os on each model.
See the Using the ID Pushbutton section on page 12 for additional information.
EXB Modules - Detailed LED Behavior
Module Condition L/A LED Status LED I/O LED
Normal Online with
Master (rest)
On if connected to master.
Blink off w/ data.
Follow Master’s
instruction for Blink
Message if online with
Master, otherwise ON
On when active,
otherwise off
Normal Boot (DHCP
found)
Note: This state
continues from the
time an IP address is
obtained until the device
is online with the Master.
OFF ON Normal Light Show,
then OFF until online
with Master, then normal
operation
Normal Boot (DHCP, no
server)
Note: This state
continues until a valid
IP address is obtained.
Fast Blink, then normal
operation
ON Normal Light Show,
then OFF until online
with Master, then
normal operation
Normal Boot (Static IP)
Note: This state
continues until the device
finishes the Light Show.
OFF during Light Show,
then normal operation
(Off until connected to
Master)
Fast Blink (continues
only during Light Show),
then ON until first blink
from Master.
Normal Light Show,
then OFF until online
with Master, then normal
operation
Boot with ID Pushbutton
held down
Slow Blink (1Hz) Slow Blink (1Hz) Slow Blink (1Hz)
ID Pushbutton held down
long enough for reset to
default parameters
Fast Blink until ID
Pushbutton is released,
then OFF
Fast Blink until ID
Pushbutton is released,
then OFF
Fast Blink until ID
Pushbutton is released,
then OFF
ID Pushbutton held down
long enough for reset to
default firmware image
Solid ON, transitions to
OFF once the unit
completes writing to flash
and is ready to reboot
Solid ON, transitions
to OFF once the unit
completes writing to flash
and is ready to reboot
Solid ON, transitions
to OFF once the unit
completes writing to
flash and is ready to
reboot
In Auto ID mode Normal Blink (2Hz) Normal
ID Pushbutton held down
long enough to accept
new ID
2 Blinks, then normal 2 Blinks, then normal 2 Blinks, then normal
After boot: ID Pushbutton
held down, but not long
enough for IP mode
change
Slow Blink (1Hz) Slow Blink (1Hz) Slow Blink (1Hz)
After boot: ID Pushbutton
held down long enough
for IP mode change
Fast Blink, then OFF Fast Blink, then OFF Fast Blink, then OFF
Downloading Firmware to
Flash Due to an upgrade
via NetLinx Studio.
Fast Blink, alternating
with Status LED)
Fast Blink, alternating
with L/A LED)
Fast Blink, alternating
LEDs