3Com HomeConnect: From left to right: ALERT - PWR - LAN - USB - ADSL (Alert should be OFF. Power, LAN and ADSL should be ON. LAN and ADSL flicker while in operation.) Note: Lights are green (OK) orange (Diagnostic) or red (Fault)
 
Westell B-C Series (Approx. 8" Square) Lights on front right-hand side. From left to right: Activity - Link - Ready - Power (Ready = DSL and Link = Ethernet. Activity light will flash while in operation.) Lights glow red in trouble condition.
 
BestData 800 Series Front Panel lights left to right: POWER (Ethernet Group) LINK - ACT (ADSL Group) RX - TX - LINK (Power, Ethernet LINK and ADSL LINK should be ON. Other lights should flicker while in operation.)
 
Westell WireSpeed B Series (Approx. 5x6" Square) From left to right: USB - ETHERNET - READY - POWER (All but USB should be ON while in operation.) Lights glow red in trouble condition.
 
Efficient SpeedStream: PWR - DSL - ENET (All lights should be ON)
 
D-Link DSL 302 Series: Power - Status - ADSL - Ethernet - USB (All lights but USB should be ON during operation.)
 
ActionTec DSL: Power - DSL - Internet - Ethernet - USB (DSL and Ethernet must be on to operate. Internet light will flash during operation.)
 
BestData ATU Series (Approx. 5x6" Square) From left to right: Power (WAN Group) Link - Data (LAN Group) 10 - 100 (Power, Link, Data and either light from the LAN Group should be ON during operation.)