GQCOMBO ACCESSORY BOX 5 Figure 4 Terminate the ends of a suitable length of sensor as described in Section 2. 1. Replace the blanking plug with the appropriate plastic PG9 gland which comes with the GQCOMBO. Remove all the links fitted to the PCB. 2. Loosen the glands on the junction boxes and pass the terminated end into the box so sufficient length is available on the tails to be wired into the terminal blocks. Ensure that the sensor is passed through the correct gland to correspond to the position of the terminal block, i.e. through the left gland to connect to the left terminal block at the right hand end of the cable and vice versa at the left end. Tighten the glands by hand so that the rubber sealing ring grips the sensor jacket and not the HDPE tubes. 3. Connect the sensor tails to the terminal blocks on the PCB. Figure 4 shows sensor wired to the left hand terminal block of the GQCOMBO box. 4. Cut off the damaged section of sensor from the fence and terminate the ends of the remaining sensor in the same manner as above. To ensure that no moisture enters the open ends, this step should only be carried out immediately prior to fixing the new section. 5. Position the boxes just above the line of the sensor to allow rain water to run away from the glands and fix to the protected surface using the mounting kit provided. The mounting bar is located across the diagonals of the box and is fixed in place by dropping the screws provided into the large holes at the corner of the box and screwing these into the mounting bar placed on the other side of the fence. If fixing the box to a wall or other solid surface the mounting bar can be dispensed with and the box fitted directly to the surface with appropriate fixings. Ensure that the new section of sensor is at the same height and tension the original. GQCOMBO ACCESSORY BOX 6 6. Connect the tails of the existing sensor to the junction box terminal blocks on the PCB. 7. Replace the box lids, taking care not to over tighten the lid screws and verify that the tamper switch in each box operates by listening for the click of the switch action as the lid is screwed down. In order to attain a weatherproof seal the lid must be replaced with the correct orientation. 8. Retest the entire zone to ensure that the sensor detects simulated impact and sustained attacks.