Cabling SNS firewalls and booting on a USB drive
On some SNS firewalls, the usual boot sequence must be interrupted in order to boot on a USB drive. Cable connections and the boot configuration vary by model.
Continue according to the model of your SNS firewall:
- SN160(W), SN210(W) and SN310,
 - SN-XS-Series-170,
 - SN-S-Series-220 and SN-S-Series-320,
 - SN510 and SN710,
 - SN-M-Series-520,
 - SN-M-Series-720 and SN-M-Series-920,
 - SN910, SN1100, SN2100, SN3100 and SN6100,
 - SN2000, SN3000 and SN6000,
 - SN-L-Series-2200 and SN-L-Series-3200,
 - SN-XL-Series-5200 and SN-XL-Series-6200,
 - SNi10,
 - SNi20,
 - SNi40,
 - SNxr1200.