Westermo DDW-221 - Manual (Page 12)

12 6642-22102
LED indicators
LED Status Description
PWR OFF No power
ON (green) Booting ready, unit ready
ON (red) Unit is booting
FRNT OFF FRNT disabled
ON (green) FRNT enabled and unit is ring
member, ring ok
Flashing (green) FRNT enabled and unit is focal point,
ring ok
Flashing (red) FRNT error and unit is focal point,
ring broken
ON (red) FRNT error according
to the following
1. If unit is ring member at least
one trunk port is down
2. If unit is focal point ring is not
intact
10/100BASE-TX
Port 1 – 4
Green LED OFF No link
ON Link active
Flashing Traffic on link
10/100BASE-TX
Port 1 – 4
Yellow LED OFF No port alarm
ON Port alarm
DSL
Port 1 – 2 OFF No link
ON (green) Link established
ON (red) Unit is booting
Flashing (green) Link negotiation
Flashing (red)) Downloading firmware to DSL chip