Help please I`m Introuble with PortServer2

I did this to all port on portserver2:
((set port range=1-16 dev=prn auto=off)), From port 1 to 16. Now I can`t telnet my portServer2, how can I Reset it to default configuration? Please help!!

To reset a PortServer II back to factory defaults, power down the unit, push the left & right arrow keys at the same time, power the unit back up, release the arrow keys when you see the ‘CL’. This is quick so you need to be looking for it.