Netopia D3232 User Reference Manual page 19

When this happens...
Data is transmitted or received on the WAN on Channel 2
Console cable is attached and has carrier
Data is transmitted or received
Data is transmitted or received by the ethernet controller
The Ethernet interface detects a collision
Link is detected
Data are received on their respective ports
Note: Console carrier (6) is ignored if the console is not configured for a remote modem.
Making the Physical Connections 2-19
the LEDs...
5 or 11 flashes yellow. (D3232 only)
6 and 7 are green.
6 and 7 flash yellow.
12 flashes yellow.
13 flashes red.
14 though 21 are solid green.
14 though 21 flash green.