SONIQ CWR300ND - Manual (Page 6)

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 Proper space left for heat dissipation is necessary to avoid damage caused
by overheating to the device. The long and thin holes on the device are
designed for heat dissipation to ensure that the device works normally. Do
not cover these heat dissipation holes.
 Do not put this device close to a place where a heat source exists or high
temperature occurs. Avoid the device from direct sunshine.
 Do not put this device close to a place where it is over damp or watery. Do
not spill any fluid on this device.
 Do not connect this device to any PCs or electronic products, unless our
customer engineer or your broadband provider instructs you to do this,
because any wrong connection may cause power or fire risk.
 Do not place this device on an unstable surface or support.
1.3 LEDs and Interfaces
Front Panel
The following table describes the LEDs of the device:
LED Color Status Description
On The device is powered on and the
initialization is normal. Green
Off The power is off.
Power
Red On The device is self-testing or self-testing is
failed.
Slow
Blinks No signal is detected.
Fast
Blinks The device is handshaking with the physical
layer of the office.
ADSL Green
On The device is connected to the physical layer
of the office.