...
Steve tried connecting to the ports directly yesterday and did not see anything. After the reboot, I still don't see anything either. This is a viper, so I'm thinking ports 11 and 12 are on the second emerald serial card, and these log messages are relevant:
[ 41.641774] emerald: NOTICE: version: v1.2-522
[ 41.842945] emerald: INFO: /dev/emerald0 at ioport 0x200 is an EMM=8
[ 41.871947] emerald: WARNING: /dev/emerald1: Emerald not responding at ioports[1]=0x240, val=0x8f
[ 41.881346] emerald: WARNING: /dev/emerald1: Emerald not responding at ioports[2]=0x2c0, val=0x8f
[ 41.890757] emerald: WARNING: /dev/emerald1: Emerald not responding at ioports[3]=0x300, val=0x8f
...