Getting to Know Your Gateway
Table 1. Front Panel LEDs LED Color Description
POWER Green ON = power is supplied to the Gateway.
OFF = power is not supplied to the Gateway.
Green Blinking = scanning for DS channel.
ON = synchronized on 1 channel only.
DS
Blue ON = synchronized with more than 1 channel (DS Bond mode).
DS and US Both DS and US blinking together = operator is performing maintenance.
Green Blinking = ranging is in progress.
ON = ranging is complete on 1 channel only.
OFF = scanning for DS channel.
US
Blue ON = ranging is complete, operate with more than 1 channel (US Bond mode).
ONLINE Green Blinking =.cable interface is acquiring IP, ToD, CM configuration.
ON = Gateway is operational.
OFF = Gateway is offline.
LINK Green Blinking = data is transmitting.
ON = Gateway is operational.
OFF = no Ethernet link detected.
DIAG Amber ON = system failure.
OFF = normal operation.
Green Blinking = data is transmitting.
ON = connected at 10 or 100 Mbps.
OFF = no Ethernet link detected.
LAN 1 – LAN 4
Blue Blinking = data is transmitting.
ON = connected at 1 GMbps.
OFF = no Ethernet link detected.
WIFI Green Blinking = data is transmitting.
ON = Wi-Fi is enabled.
OFF = Wi-Fi is disabled.
USB Green Reserved for future use.
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SMCD3GN Wireless Cable Modem Gateway User Manual