| OSCO
                      Barrier-Gate Models BGU-D is the solution when a battery back-up is needed
                        in you operator system. This unit is to be used for parking
                        applications and revenue control.
 Through switch
                          selections, the gate operator is universal and suitable
                          for all installation and operational functions. Switch selection
                          allows for full flexibility as to how and when the arm comes
                          down in traffic control situations. The added advantage
                        to the DC operator is the automatic-open feature upon power
                        loss. When the gate opener senses AC power is no longer
                        present, the arm will cycle open, remaining open until AC
                        power is restored (fail safe) OR continues normal operation
                        while monitoring the battery level. Once the batteries are
                        low the unit will cycle open until AC power is restored
                        or the batteries receive a full charge (fail secure). |