User's Guide

12/6/2019
26
NU LED Table
LED Label
LED State
Meaning
POWER
NO LIGHT
No power
SOLID GREEN
Powered and operating
normally
FLASHING GREEN
Scanning to acquire
network signals
SOLID RED
Hardware error
FLASHING RED
Error
CU1, CU2, CU3, CU4,
CU5, CU6
NO LIGHT
Not connected
properly, no power
SOLID GREEN
Connected, powered
and operating normally
SFP+
SOLID GREEN
SFP+ module installed,
and communicating
properly
FLASHING GREEN
SFP+ module installed,
not communicating
LAN
SOLID GREEN
Link is up
FLASHING GREEN
Link is up and active
MODEM
SOLID GREEN
Modem is installed,
connected, and has an
IP address
FLASHING GREEN
Modem is attempting
to connect
FLASHING RED
Modem error
CU
Each QUATRA 4000 CU has three (3) LEDs on the front of the unit, used as status indicators, during setup and
normal operation. The LEDs are labeled.