my $prd = $ftp->getenv("ProductID");
my $usb = $ftp->getenv("usb_prod");
print STDERR "$prd / $usb.\n";
-($prd eq "AR7RD") or die "doesn't look like a DSL-502T?";
+($prd eq "AR7RD" || $prd eq "AR7DB") or die "doesn't look like a DSL-502T?";
($usb eq "DSL-502T") or die "doesn't look like a DSL-502T?";
#